OUYANG Kangting
Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China;University of Chinese Academy of Sciences, Beijing 100049, ChinaPANG Jinhui
Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China;University of Chinese Academy of Sciences, Beijing 100049, ChinaYU Xiaoling
Zhongkai University of Agriculture and Engineering, Guangzhou 510650, ChinaXU Zhanhui
Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China;University of Chinese Academy of Sciences, Beijing 100049, ChinaREN Hai
Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China;University of Chinese Academy of Sciences, Beijing 100049, ChinaWANG Faguo
Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China;University of Chinese Academy of Sciences, Beijing 100049, ChinaMA Guohua
Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, ChinaLIU Zongjun
Guangdong Nanling National Nature Reserve Administration, Shaoguan 512727, Guangdong, ChinaHU Mingfeng
Guangdong Nanling National Nature Reserve Administration, Shaoguan 512727, Guangdong, ChinaZHANG Yajian
Guangdong Nanling National Nature Reserve Administration, Shaoguan 512727, Guangdong, ChinaTAN Guangwen
Pubang Landscape Architecture Co., Ltd, Guangzhou 510600, ChinaTo understand the endangered reasons of Dipteris chinensis, a rare and endangered plant, the effects of temperature and humidity on spore germination was studied. The results showed that the spore germination ability was strong, with Vittaria-type germination mode and Marattia-type gametophyte germination. The spore propagation of D. chinensis was not affected by temperature, while significantly influenced by humidity. The spores germinated normally in humid condition, forming heart-type gametophytes, and producing young sporophytes successfully. However, spores could not germinate under drought condition, gametophytes were inclined to irregularly development and folds increased. Therefore, the obstacles in spore reproduction of D. chinensis under unsuitable environment might be one of the reasons leading to the decline of wild population, so that in situ and ex situ conservation of these rare and endangered plants should pay attention to creating moist habitats.
欧阳康婷,庞金辉,余小玲,许展慧,任海,王发国,马国华,刘宗君,胡明锋,张亚坚,谭广文.环境因子对中华双扇蕨孢子萌发的影响[J].热带亚热带植物学报,2022,30(2):179~186
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