盐胁迫下绿豆幼苗的超微弱发光

Ultraweak Photon Emission in Mung Bean Seedlings under Salt Stress

摘要:

对不同NaCl浓度胁迫下绿豆种子早期萌发时的超微弱发光变化进行了初步研究。结果表明,随NaCl浓度的增加,绿豆胚根的生长速度(根长)减慢,生长受到明显抑制,其超微弱发光的强度显著下降。萌发期间,SOD活性随着盐浓度的增加而降低,其活性与生物光子强度有极为密切的关系。这些结果表明生物超微弱发光探测技术有可能成为植物盐胁迫研究的有效工具,对于进一步理解盐胁迫机理有一定的意义。

Abstract:

The growth of mung bean radicles decreased with the increase of NaCl concentration in incubationsolution, and the detected ultraweak photon emission intensity declined markedly as well. During germination of mung bean seeds, superoxide dismutase (SOD) activity also decreased as NaCl concentration increased. SODactivity was closely related to biophoton intensity. The results show that ultraweak photon emission detection is useful for the study of the plant response to salt stress.