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CHEN Lin, XIANG Lihui, SONG Zhenshuo, CHEN Jian, ZHANG Yinggen
2025,33(3):241-252, DOI: 10.11926/jtsb.4887
Abstract:
To delve deeper into the unique attributes of fresh leaves from oolong tea varieties, the green tea cultivar ‘Fudingdahao’ with one bud and two or three leaves was used as the control (CK), the compositional differences at both the transcriptional and metabolic levels between two or three leaves with a bud (TM) and two to four leaves with a banjhi bud (MM) from the highly fragrant oolong tea variety ‘Mingke 1’ were analyzed. The results showed that both tea variety and harvesting standards significantly influenced the transcriptomic and metabolic profiles of tea shoots. Notably, the transcriptional and metabolic profiles of CK, TM, and MM exhibited distinct and well-defined pattern differentiations. Enrichment and correlation analysis of differentially expressed genes and metabolites revealed that TM vs CK and MM vs TM displayed distinct GO functional enrichment patterns significant in molecular functions, cellular components, and biological processes. The former had more entries in biological processes and fewer entries in cellular components. Additionally, “Biosynthesis of various plant secondary metabolites”, “Arginine and proline metabolism”, along with “Carotenoid biosynthesis”, “Phenylpropanoid biosynthesis” and “Glycine, serine, and threonine metabolism” were identified as the top 20 shared KEGG-enriched metabolic pathways in the two omics analyses of TM vs CK and MM vs TM. In TM vs CK, there was a significant decrease in the abundance of l-phenylalanine, trans-cinnamic acid, and 4-guani-dinobutyric acid, while in MM vs TM, there was a significant increase in choline abundance and a significant decrease in the abundance of l-phenylalanine, l-tryptophan, and l-homoserine. All of these changes were closely associated with significant upregulation or downregulation of multiple genes in the respective enriched metabolic pathways. Additionally, the significant increase in abscisate abundance in MM vs TM was highly correlated with significant upregulation of violaxanthin de-epoxidase and lycopene β-cyclase genes in the carotenoid biosynthesis pathway. So, these would provide the necessary reference for further elucidating the biological characteristics of fresh leaves obtained from ‘Mingke 1’ and their versatility in producing multiple types of tea.
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WANG Runhui, WEI Ruping, YAN Shu, HUANG Rong, ZHENG Renhua, ZHENG Huiquan
2025,33(3):253-260, DOI: 10.11926/jtsb.4883
Abstract:
To promote the process of the advanced-generation breeding program of Chinese fir (Cunninghamia lanceolata) in southern China synergistically, the growth variation of Chinese fir family (3rd generation family), introduced from Fujian, was analyzed and selected based on the regional assay at 8 years old at multiple sites in Guangdong, jointly conducted by Guangdong and Fujian Chinese Fir Genetic Improvement Cooperation Group. The results indicated that the tested families showed good adaptability even in Guangdong, and the overall growth level was similar to that of the improved variety of second-generation Chinese fir seed orchard of Guangdong. However, there were significant differences in growth traits among families. Moreover, the family heritability of tree height, diameter at breast height and single tree volume was consistently above medium level, reaching 0.415, 0.338, and 0.308, respectively. Furthermore, there was significant positive genetic correlations among growth traits. Briefly, these would provide a possibility for the selection of better families than the improved variety of second-generation seed orchard of Guangdong. By comprehensive evaluation, thirteen super Chinese fir families of Fujian including five multi-site fast growing ones and 8 region-specific fast growing ones were identified, of which families F3, F13, F21 and F28 consistently realized a volume gain over 10% (11.48%-19.32%), indicating a breeding potential for application in the future.
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LIU Jiao, YANG Xiongwei, HE Shengcong, CHENG Xiaomao, HUANG Xiaoxia
2025,33(3):261-268, DOI: 10.11926/jtsb.4882
Abstract:
To explore the genetic diversity of cultivated ancient tea tree (Camellia sinensis var. assamica) germplasm resources, the genetic diversity and structure of 64 germplasm resources in the ancient tea garden of Wuliangshan Town, Nanjian County were analyzed by using EST-SSR molecular markers. The results showed that a total of 223 alleles were detected with 20 pairs of primers, and the average effective number of alleles among populations was 3.48. The average observed allele (Na), average effective allele (Ne), average Shannon diversity index (I), and average of Nei’s gene diversity index (H) were 6.25, 2.983, 1.251 and 0.646, respectively. POPGENE analysis showed that the mean genetic differentiation coefficient (Fst) was 0.063, indicating that there was moderate differentiation among populations with gene flow (Nm) of 3.710. AMOVA molecular variance analysis showed that 14% of genetic variation in C. sinensis var. assamica occurred among populations and 86% occurred within population, indicating that genetic variation in C. sinensis var. assamica mainly occurred within population and genetic exchange was abundant. The rich genetic diversity of the ancient tea tree population in the ancient tea garden of Nanjian County would provide a scientific basis for the protection and utilization of C. sinensis var. assamica germplasm resources and the selection of new varieties.
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CHEN Xiaojun, ZHU Senyu, TIAN Feng, WANG Jingjing, WU Chao, SHEN Yamei, MA Jingjing
2025,33(3):269-281, DOI: 10.11926/jtsb.4878
Abstract:
In order to understand the function and expression patterns of the MADS-box gene family in Yulania liliiflora, based on the transcriptomic data of ‘Hongyuanbao’, the members of MIKC MADS-box gene family were identified, their physical and chemical properties, phylogenetic evolution and conserved domain were analyzed. The results showed that a total of 19 MIKC MADS-BOX gene family members were identified, all of which were located in the nucleus and shared common MADS or K-box conserved domains. Most MlMADSs played role in floral organogenesis, and MlAGL6 and MlAGL12-c might be important nodes in the protein interaction network. MlMADS-box members had high expression in stamen, flower bud and stem tissues, and play an important role in flower organ formation and flower development. The candidate key gene MlAGL6 was screened regulating the secondary flower formation of ‘Hongyuanbao’. These would provide data support for exploring the function of MIKC MADS-box gene in the reproductive development of Y. liliiflora ‘Hongyuanbao’.
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KANG Yi, LI Chengzhi, TIAN Peng, PENG Xiaoying, YU Xiaozhang
2025,33(3):282-288, DOI: 10.11926/jtsb.4886
Abstract:
Nitrogen (N) is an essential element for plant growth and development, and lack of boron (B) will affect N metabolism in the body, forcing plants to obtain N sources from other ways. Non-toxic dose of cyanide (CN-) can provide auxiliary N source for plants through β-cyanoalanine synthetase (β-CAS) degradation pathway. Cysteine (Cys) is considered to be a limiting factor in the β-CAS pathway. In this study, rice (Oryza sativa) seedlings were treated with CN--B-Cys, CN-+B-Cys, CN--B+Cys and CN-+B+Cys to evaluate the combined regulatory effects of B and Cys on the absorption and assimilation of CN- in rice seedlings. The results showed that CN- absorption rate of rice seedlings treated with CN--B+Cys was the highest (P<0.05), followed by CN-+B+Cys. The residual concentration of CN- in rice seedlings treated with CN--B+Cys and CN-+B+Cys was significantly lower than that of other treatments (P<0.05). CN--B+Cys processing of rice seedlings have the highest CN- assimilation rate (P<0.05), followed by CN-+B+Cys, CN--B-Cys and CN-+B-Cys. Meanwhile, the NH4+ absorption rate and assimilation rate of rice seedlings treated with CN--B+Cys were the highest (P<0.05), followed by CN-+B+Cys. Therefore, the addition of Cys and B deficiency treatment could promote the absorption and assimilation rate of CN- and NH4+ in rice seedlings, and reduce the toxic damage of CN- to rice seedlings.
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GAO Ming, CHEN Yicun, ZHAO Yunxiao, WU Shanqun, WANG Yangdong
2025,33(3):289-295, DOI: 10.11926/jtsb.4921
Abstract:
In order to comprehensively evaluate the effect of rootstock on the growth of grafted plants of Litsea cubeba and essential oil quality of fruits, the effects of grafting season, rootstock type and size on survival, growth, and fruit properties, fruit essential oil and citral content of grafted plants were studied by using ‘xianglinglong-1’ as scion. The results showed that the graft survival of three types of rootstock in different seasons ranged from 26.39% and 87.22%, and it was higher for grafting in autumn than in winter. When the rootstock diameter was 1.3 cm, the graft survival rate was higher than 1.0 and 0.8 cm, while the graft survival rate of LC24 was higher than that of LMCH and LCHS. The rootstock type had significant influence on plant growth, LC24 rootstock had the best DBH, fruity branch length, fruity branch thickness and fruity branch number, which were significantly higher than LMCH. Fruit yield, 100-grain weight, size, essential oil content and citral content of different rootstocks increased year by year, and 5-year-old plants were significantly higher than 3-year-old plants. LC24 stocks were significantly higher than the other two stocks, and LMCH performed the worst. Therefore, these would lay a foundation for the large-scale propagation of the fine varieties of L. cubeba and the understanding of the mechanism of rootstock-scion interaction.
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LEI Mengying, HUANG Feng, HUANG Nianlan
2025,33(3):296-306, DOI: 10.11926/jtsb.4939
Abstract:
Understanding the interaction patterns between arbuscular mycorrhizal fungi and plant growth-promoting bacteria is of great significance for their combined application in crops. Eleven species with stress-resistant related traits were planted and the rhizosphere soil, root soil and plant root samples were collected for ITS amplification sequencing of fungal communities and 16S rRNA amplification sequencing of bacterial communities. The composition and abundance of Glomeromycota fungi in different groups of samples and the differences in their interaction patterns with bacteria were compared to infer the symbiotic rules of arbuscular mycorrhizal fungi and plant growth-promoting bacteria in the plant rhizosphere. The results showed that different spaces in the plant rhizosphere significantly affected the composition and abundance of Glomeromycota fungi. The relative abundance values of Glomeromycota fungi decreased in the order of planting soil, rhizosphere soil and plant roots (0.66%, 0.5% and 0.13%, respectively). Although the relative abundance value of Glomeromycota fungi in plant roots was the lowest, the positive correlation with the main bacterial groups was the highest among the three groups (29%, 52% and 74%), and the participation in the network of the main bacterial groups was also the highest, indicating the enhanced interaction between Glomeromycota fungi and bacteria in the roots. Finally, in the roots, Glomeromycota fungi were found to have significant positive correlations with plant growth-promoting bacteria (Arthrobacter, Rhizobium, Streptomyces), mycorrhizal helper bacteria (Arthrobacter, Bradyrhizobium, Paenibacillus, Rhizobium, Streptomyces) and some other bacterial genera. Among them, Glomeromycota fungi (represented by Glomerales and Diversisporales) may interact with the representative populations of the plant-related bacterial genera Bradyrhizobium and Rhizobium, which is worthy of further verification.
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LI Ting, YE Xuemin, SUN Rongxi, WU Nansheng
2025,33(3):307-314, DOI: 10.11926/jtsb.4879
Abstract:
Trait plasticity is the key to plant adaptation to climate change. However, the understanding of how climate factors affect trait plasticity is still limited. In this study, the plasticity of leaf traits in different provenances of 14 Choerospondias axillaris under temperature and precipitation gradient were studied through homogenous garden experiment. The results showed that the leaf trait plasticity of C. axillaris was 0.034-0.236. Trait plasticity among different provenances exhibited significant variation along temperature gradients, but except for leaf non-structural carbohydrate plasticity, the other traits were unrelated to precipitation factors. Specifically, leaf length plasticity was positively correlated with annual mean temperature, mean temperature in the wettest season and the coldest season. Leaf area plasticity was positively correlated with annual mean temperature and mean temperature in the coldest season, which was negatively correlated with mean diurnal temperature range. The plasticity of leaf relative water content was positively correlated with annual mean temperature and mean temperature in the coldest season. The leaf non-structural carbohydrate plasticity was negatively correlated with annual mean temperature and mean temperature in the coldest season. Therefore, the temperature factors limited the trait plasticity of C. axillaris. Moreover, the variation of leaf phenotypic plasticity might be the main adaptive strategy of the population to temperature change during long-term evolution. This study clarified the relationship between temperature and precipitation and trait plasticity, which could provide scientific reference for predicting adaptability change and germplasm resource protection under the background of climate change.
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YU Enping, DENG Huage, ZHU Weiguang, YANG Qiqing, CAO Honglin
2025,33(3):315-320, DOI: 10.11926/jtsb.4885
Abstract:
The geographical distribution and habitat of the key protected wild plant Ormosia purpureiflora were systematically studied by means of field germplasm resource investigation, and its population distribution pattern in Luofu Mountain was analyzed by using variance ratio. The results showed that O. purpureiflora was currently sporadically distributed in Luofu Mountain Provincial Nature Reserve in Guangdong and Nankunshan Provincial Nature Reserve in Longmen, Guangdong, with a very narrow range. A total of 2 144 individuals were surveyed in the two protected areas. More than 90% of the plants were shrubs with small crown width; and the rest were small arborescent. Ormosia purpureiflora grows in the middle of granite slopes and prefer warmth and humidity. The individuals in the population showed obvious aggregation distribution. This study has basically grasped the wild resource status and population spatial distribution pattern characteristics of O. purpureiflora, providing scientific basis for the protection and utilization of their germplasm resources.
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XU Yena, YU Yang, GUO Shengcai, ZHENG Yi, PENG Weixiong, CAO Honglin, LIAN Juyu
2025,33(3):321-331, DOI: 10.11926/jtsb.4876
Abstract:
Exploring the population dynamics and influencing factors of foundation species can help deepen our understanding of forest carbon cycling and source-sink transitions and provides a theoretical basis for forest conservation. This study used a 20 hm2 plot in lower subtropical evergreen broad-leaved forest in Dinghushan as the research platform. Based on the initial survey data, it was determined that the top three species with the highest importance values and total basal area were the foundation species of the plot: Castanopsis chinensis, Schima superba, and Engelhardia roxburghiana. The population dynamics characteristics were analyzed using important values, mortality rates, recruitment rates and diameter class structure. Subsequently, based on these population dynamics features, the patterns of survival and changes in neighbor density were examined through the analysis of neighbor effects. The results showed that the population dynamics of C. chinensis and E. roxburghiana remained stable, maintaining dominance in the plot community with low mortality and recruitment rates. Whereas the population of S. superba experienced a sharp decline in dominance due to a large number of individual deaths from 2010 to 2015. There were significant negative correlations between the survival of C. chinensis juveniles and the density of conspecific neighbors, indicating apparent intraspecific competition or negative density dependence. During periods of population stability for S. superba, the survival of adults had significant positive correlations with the density of conspecific neighbors, consistent with the habitat filtering hypothesis. During periods of extensive individual deaths within the S. superba population, the significant positive correlation between the survival of adults and conspecific neighbor density disappeared, replaced by a significant positive correlation with the density of heterospecific neighbors. It was suggested that S. superba survival was more likely in areas where heterospecific individuals were clustered nearby, supporting the heterospecific facilitation hypothesis. The survival dynamics of E. roxburghiana individuals were not mostly significantly related to neighbor density, indicating that the survival of E. roxburghiana is hardly influenced by neighbors. In summary, there were interspecific differences in the responses of dominant species to neighbors, and the same species adopts different strategies at different life history stages, which supported the co-action of environmental filtering and niche differentiation in the community, maintaining species diversity and the functionality and stability of the ecosystem.
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FANG Bowen, LI Xiaobo, WANG Mengyue
2025,33(3):332-342, DOI: 10.11926/jtsb.4959
Abstract:
To investigate the morphological histology of Urtica stinging hairs, the morphological structure, biomineralization and chemical composition of stinging hairs from three Urtica species (U. fissa, U. dioica and U. cannabina) were systematically studied by using optical microscopy, scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), inductively coupled plasma optical emission spectroscopy (ICP-OES) and histological staining. Additionally, the morphological structure of Girardinia diversifolia was also investigated as reference to distinguish Urtica from Girardinia. The results showed that stinging hairs across different species share a stinging cell (comprising a tip and a stalk) along with a basal part, but there are variations in characteristic parameters such as length, diameter, mass and density among them. Biomineralization was found to be common in stinging hairs of Urtica, with silica, calcium carbonate and calcium phosphate as the primary components, significantly increases from the basal part towards the tip. Polysaccharides, phenolic acids and flavonoids are identified as major components within Urtica stinging hairs, which are mainly enriched in the basal cells. These would provide a reference for the identification of Urtica and other plant species with typical stinging hairs.
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XU Lu, YAO Hedong, CHEN Suiqing, LIU Mengqi
2025,33(3):343-351, DOI: 10.11926/jtsb.4890
Abstract:
In order to understand the environmental adaptability of leaf structure of Nerium oleander, the microscopic structure of leaves was observed by anatomical and histochemical methods. The results showed that the upper and lower surfaces of leaves were covered with non-glandular hairs, cuticle and wax, and the stomatal nests were only distributed on the lower surface, densely covered with non-glandular hairs, and there were stomata at the bottom. The upper and lower epidermis of leaves were compound epidermis, and the two layers of palisade tissue cells were tightly arranged. The cells of sponge tissue were randomly arranged with large intercellular spaces, and calcium oxalate clusters were distributed in mesophyll tissue. There are cuticle outside the epidermis, thick angular tissue under the epidermis, and a large number of parenchyma cells inside. There are double pliable vascular bundles in the center of the midvein, and calcium oxalate clusters and calcium oxalate square crystals are distributed in the parenchyma cells around the vascular bundles. Some parenchyma cells near the vascular bundle were full of starch granules. The vessels were of various types, including spiral, scalariform and pitted vessels. The cuticle layer, compound epidermis, stomatal cavity and calcium oxalate crystal of N. oleander leaves indicate that it has a strong ability of water retention, ultraviolet resistance and insect resistance. The two layers of tight palisade tissue and loose spongy tissue not only support its high photosynthetic efficiency, but also prevent the damage caused by high temperature and drought. The anatomical structure of the leaves of N. oleander shows that oleander has strong adaptability to the environment.
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2025,33(3):352-362, DOI: 10.11926/jtsb.4884
Abstract:
In mountain ecosystems, smaller differences in elevation gradients can cause significant differences in environmental factors such as soil moisture, environmental temperature, and radiation intensity, as well as natural landscapes. Under global climate change, the habitats of alpine plants are extremely susceptible to climate change. Studying the altitude adaptation mechanism and ecological balance of alpine plants can provide ideas for the formulation of biodiversity conservation strategies, introduction and cultivation, and global climate change response strategies. The mechanism of plant altitude adaptation is a precise and complex regulatory system, but with the development of life sciences and the increasing innovation of research technology, research routes can be provided from different technical levels according to the actual needs and research objectives of researchers. Therefore, the previous research on the altitude adaptation mechanisms of alpine plants were overviewed from the perspective of different research methods or technical routes (morphological characteristics and traits, physiological and biochemical indicators, metabolic pathways and products, genomics and proteomics). Different research methods were used to classify and summarize the general rules of adaptability mechanisms of alpine plants from different levels. At the same time, different research results were used to confirm each other or further analyze the adaptive mechanism at a deeper level. Finally, based on the above overview, potential future research directions are proposed to provide reference for future research at different levels and perspectives.
Volume 33,2025 Issue 3
Plant Physiology and Molecular Biology
Plant Ecology and Natural resource Management
Plant Systematics and Biogeography
Research Progress
Volume 33,2025 Issue 3
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WANG Lin, YI Qi-fei, SONG Xian-li, GUO Fei-li, LU Zhen-hua, XING Fu-wu
2014,22(6):558-566, DOI: 10.11926/j.issn.1005-3395.2014.06.003
Abstract:
In order to understand the landscape restoration of landfill in Big Taipa Hill, Macau, the species composition, vertical structure, floristic components, and community appearance were investigated by using sampling method. The results showed that there were 83 vascular plants in 12 plots of 1200 m2. The floristic composition of the community was dominated by Pantropical genera, account for 38.98%. The community appearance was determined by the micro- and meso-phanerophyte with herbaceous, simple and micromonophylls. The indexes of the landfill community were similar to that of nature plant community, indicated that the restoration of landfill was good. Based on the current situation of landfill, some preferred species for landscape restoration were selected, and suggestions were given for improving landscape. It was recommended that the landscape restoration should be carried out in stages. To get faster and better landscape restoration, proper manual intervention should be taken at different stages of community succession.
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HU Chao, TIAN Huai-zhen, DONG Quan-ying
2012,20(6):602-604, DOI: 10.3969/j.issn.1005-3395.2012.06.011
Abstract:
Anoectochilus lylei Rolfe ex Downie is newly reported to Chinese flora. The detailed morphological descriptions and photoes are also provided. This species is characterized by the white “Y”-shaped lips, epichiles lobes linear-oblong, mesochile with 1-3 short irregular denticles and the spur with 2 peltate calli inside.
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1997,5(3):69-73, DOI: 10.3969/j.issn.1005-3395.1997.3.015
Abstract:
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WANG Qing-bing, ZHANG Jian-feng, CHEN Guang-cai
2013,21(5):479-488, DOI: 10.396/j.issn.1005-3395.2013.05.016
Abstract:
The isotope tracer technology is a kind of method by adding exogenous elements or substance as a tracer co-operating in organism completely, which used to indicate the change process of elements or substance in organism. Nitrogen stable isotope tracer technology can reveal essentially the mechanism of ecological process, so it becomes one of important tools for ecology research. In order to understand the advances in application of nitrogen stable isotope technique in nitrogen cycle of plant-soil system, nitrogen cycle based on 15N tracer technique was reviewed. The nitrogen stable isotope technique in solving ecology problems was prospected and some existing shortcomings are also discussed.
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ZHANG Na, QIAO Yu-na, LIU Xing-zhao, CHU Guo-wei, ZHANG De-qiang, YAN Jun-hua
2010,18(5):502-510, DOI: 10.3969/j.issn.1005-3395.2010.05.006
Abstract:
The characteristics of five nutrient elements (K, Ca, Mg, N and P) in precipitation, throughfall and stemflow were studied in an monsoon broad-leaved evergreen forest at Dinghushan, Guangdong Province. Based on the precipitation allocation principles, the variation and input characteristics of these nutrients were calculated. The results showed that the contents of nutrient elements were in order as rainfall < throughfall < stemfall, in which the contents of K+ and total nitrogen (TN) were the highest, and those of total phosphorus (TP), HPO42- and total organic phosphorus (TOP) were the lowest. The biggest variation coefficient (Cv) of ion contents in precipitation was 1.282 for total organic nitrogen (TON), and the smallest was 0.502 for NO3-, while those in throughfall were 2.357 for TOP and 0.621 for TN, respectively. There were no significant relation between tree species and the contents of element (P>0.05). The annual inputs of nutrient elements from throughfall and stemflow into the soil were in the order as: TN>K+> Ca2+>Mg2+>TP. The annual input of Ca2+ from throughfall and stemflow were higher than that from litterfall decomposition. It concluded that rainfall was an important factor in transferring nutrient elements from forest canopy to soils.
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2014,22(4):323-334, DOI: 10.3969/j.issn.1005-3395.2014.04.001
Abstract:
Both herbarium and field observations have shown that Delphinium pseudothibeticum W. T. Wang & M. J. Warnock described from Mo-ting (= Mao-ding) Shan, Deqen, northwestern Yunnan, China, is identical with D. ceratophorum Franch. var. brevicorniculatum W. T. Wang, and that both D. motingshanicum W. T. Wang & M. J. Warnock and D. caeruleum Jacq. ex Camb. var. crassicalcaratum W. T. Wang & M. J. Warnock, also described from Mo-ting Shan, are identical with D. beesianum W. W. Smith (D. motingshanicum is no more than a gigantic form of D. beesianum). Delphinum ceratophorum var. brevicorniculatum is currently known only from Deqen, while D. beesianum is a very common species in northwestern Yunnan. Delphinium pseudothibeticum, D. motingshanicum and D. caeruleum var. crassicalcaratum are all synonymized.
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2003,11(2):190-196, DOI: 10.3969/j.issn.1005-3395.2003.2.021
Abstract:
Recent studies on plant responses to elevated CO2 is reviewed. Increase in atmospheric CO2 concentration affects not only global climate but also plant morphology, water use, protein synthesis, photosynthesis, resistance, growth, biomass and so on. Elevated CO2 has effects of promoting the growth of plant roots and seedlings, making the leaf thick, lowering the stomatal density, stomatal conductance and transpiration, enhancing the water use efficiency, crop yield and biomass, intensifying the biosynthesis of ethylene and antioxygen competence. High CO2 concentration together with other environmental factors affect plants. Plants with different photosynthetic pathways (C3, C4 and CAM) and different vegetation types (natural and artificial vegetation) exhibite different responses to high CO2 concentration. Short-term exposure to elevated CO2 enhances photosynthesis while long-term inhibits. Experimental conditions such as air pressure, temperature, water availability, nutrition status, oxygen, light intensity even growth space also have great effect on the results of the experiments.
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MA San-mei, LIN Wen-le, YANG Wei-dong
2010,18(5):497-501, DOI: 10.3969/j.issn.1005-3395.2010.05.005
Abstract:
The changes in stomatal distribution, density and stomatal index of Canna generalis Bailey flower at different development stages were studied. The results showed that stomata distributed in upper and lower epidermis of petal, bract and calyx. Stomatal density and stomatal index on upper epidermis of petal, bract and calyx were smaller than those on lower surface. With the development of flower, the stomatal density and stomatal index on the petal, bract and calyx increased firstly and then decreased.
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2014,22(2):107-120, DOI: 10.3969/j.issn.1005-3395.2014.02.001
Abstract:
We point out that the inclusion of east China's Jiangsu Province in the distribution of Ligularia przewalskii, a species actually occurring only in Gansu, Qinghai, Nei Mongol (Inner Mongolia), Ningxia, Shaanxi, Shanxi, and Sichuan, most likely is a result of misinterpreting "Kansu (= Gansu)" as "Kiangsu (= Jiangsu)". This inadvertent error first appeared in Flora Reipublicae Popularis Sinicae 77(1), and was widely perpetuated in subsequent publications. Critical comments are made on some problems apparent in floristic works (particularly regional Floras at provincial level) of China.
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Li Meiru, Liu Hongxian, Wang Yirou
1997,5(3):74-82, DOI: 10.3969/j.issn.1005-3395.1997.3.016
Abstract:
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LI Wei, MEI Wen-li, ZUO Wen-jian, WANG Hao, DAI Hao-fu
2014,22(2):201-212, DOI: 10.3969/j.issn.1005-3395.2014.02.015
Abstract:
The chemical constituents of Aquilaria sinensis mainly include flavonoids, benzophenones, lignans, phenylpropanoids, terpenoids, alkaloids, steroids, phenolic compounds. Some of them have anti-tumor, antibacterial, anti-inflammatory, analgesic, and laxative activities. The chemical constituents isolated from A. sinensis were reviewed, and the biological activities of some compounds were also introduced. These would provide scientific basis for development and utilization of A. sinensis.
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LIN Juan， ZHOU Xuan-wei， TANG Ke-xuan， CHEN Fang
2004,12(3):285-290, DOI: 10.3969/j.issn.1005-3395.2004.3.018
Abstract:
This paper briefly reviews the studies of medicinal plant Jatropha curcas on the following aspects: morphology and habitat; effective components including terpens, flavons, fats, coumarins, sterols, etc.; toxicity and pharmacological activities; medicinal use; and application prospects.
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HUANG Jun-zhe, GU Song*，HUANG Ya-nan, ZHENG Qiang, TIAN Jun-ying，JIANG Sha*
2007,15(3):219-223, DOI: 10.3969/j.issn.1005-3395.2007.3.006
Abstract:
The development of primary vascular tissues of root-stem transitional region was studied in Robinia pseudoacacia L. seedlings of 1-12 days using sequential paraffin section. The primary vascular tissues of roots are connected with the cotyledons via the hypocotyl. The results support the viewpoints of Esau et al. that the whole seedling of Robinia pseudoacacia L. is divided into two systems of the root-hypocotyl-cotyledon and the epicotyl, and there is only a simple linkage between the vascular tissues of stem and the hypocotyl without any transition.
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YANG Xiao-hong, CHEN Xiao-yang, LIU Ke-feng
2006,14(3):256-262, DOI: 10.3969/j.issn.1005-3395.2006.3.016
Abstract:
Cytokinins are important plant hormones and can delay plant senescence, In this review three approaches in study of the effects of cytokinins on plant senecence are presented： the analysis of endogenous cytokinins during senescence； the application of exogenous cytokinins； and the research on transgenic plants with cytokinin biosynthesis or biodegradation genes. The mechanisms of cytokinins in retarding of senescence was discussed in relation to saccharides, lipid oxidation, as well as to other hormones.
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YI Qi-fei， XING Fu-wu*， HUANG Xiang-xu， CHEN Hong-feng， WANG Fa-guo
2005,13(1):65-69, DOI: 10.3969/j.issn.1005-3395.2005.1.013
Abstract:
Fifteen medicinal Bulbophyllum species in China are presented. The local names, distribution, habitat, and folk medicinal uses are given. Bulbophyllum species used as folk herbs are mostly distributed in south and south-west China, in particular, in Yunnan Province. Some species such as B. kwangtungense, B. odoratissimum and B. ambrosia are common in Guangdong and Guangxi. Some suggestions for the conservation and reasonableutilization of the plant resources are made.
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2004,12(3):280-284, DOI: 10.3969/j.issn.1005-3395.2004.3.017
Abstract:
The development of annona fruit production is restricted due to the difficulty in fresh-keeping of the fruits during storage and transportation. This paper reviews postharvest physiology of annonas, including respiration and ethylene production, relevant enzymes, fruit softening, fruit browning, and postharvest pathology.
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CHEN Xin-jian， LIU Guo-shun， CHEN Zhan-kuan， ZHI Yu-bao， YI Ming-lin， LIU Hong-xian
2002,10(1):83-98, DOI: 10.3969/j.issn.1005-3395.2002.1.018
Abstract:
This review contents a brief retrospection of physiological functions of plant hormone，ethylene The progresses concerned three important enzymes：SAMS，ACS and ACO in ethylene biosyn-thetic pathway are highlighted The possible methods to control endogenous ethylene’s productionin fruits or flowem by genetic engineering are outlined．
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XIE Xian-qiang, WU Ping, LIN Li-dong, LIU Mei-fang, WEI Xiao-yi*
2007,15(5):450-454, DOI: 10.3969/j.issn.1005-3395.2007.5.015
Abstract:
Twelve chemical constituents were isolated from Polygonum chinense Linn. On the bases of spectral data, they were identified as syringic acid (1), apigenin (2), 3,3′-di-O-methylellagic acid (3), gallic acid (4), protocatechuic acid (5), isorhamnetin (6), caffeic acid (7), quercetin (8), luteolin (9), gallicin (10), avicularin (quercetin-3-O-α-L-arabinofuranoside)(11) and 3,4,8,9,10-pentahydroxy -6H-dibenzo [b,d]pyran-6-one (12). All these compounds except 4 and 8 were reported from the species for the first time.
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CHEN Rong, ZHANG Xin-hua, MA Guo-hua*
2014,22(1):53-60, DOI: 10.3969/j.issn.1005-3395.2014.01.009
Abstract:
In order to understand the parasitic relationship between Santalum album L. and leguminous plants, eleven leguminous species were planted with S. album. The leaf photosynthetic characters, height and base diameter of S. album and its haustoria number and size were studied. The results showed that number and size of haustoria, height and base diameter of S. album had significant differences among different hosts. The excellent hosts for S. album were Calliandra haematocephala, Caesalpinia sappan, Acacia confusa and Erythrina corallodendron, and Acacia mangium, Dalbergia odorifera and Cassia surattensis were just general hosts, while Delonix regia, Ormosia pinnata, Leucaena leucocephala and Bauhinia blakeana were unsuitable hosts. Meanwhile, the height and diameter, leaf photosynthesis characters of S. album had close relation with number of haustoria parasitized on roots of leguminous plants. So, the plantation of S. album should choose appropriate host plant.
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WANG Ya-ni, WANG Li-kun, MIAO Zong-bao, LIU Hong-xia
2013,21(3):281-288, DOI: 10.3969/j.issn.1005-3395.2013.03.015
Abstract:
Dendrobium, epiphyticly growing on tree or rock, is one of the largest genus in orchid family, belonging to Dendrobiinae of Epidendroideae. Most of species in this genus have high medicinal and ornamental values. Howerver, the wild species of Dendrobium has been threatened because of over-collection and habitat deterioration in recent years. Dendrobium is one of typical orchid mycorrhizal plants, it needs symbiosisn with mycorrhizal fungi to complete its life cycle under natural conditions. Mycorrhizal fungus have important roles in Dendrobium seed germination and plant growth. the conformation of Dendrobium mycorrhizae, effects and diversity of mycorrhizal fungi in Dendrobium were reviewed, as well as the mycorrhizal technology utilization in Dendrobium. In addition, some ideas based on the current researches are proposed for future studies.
