Effects of ultradry storage on fluidity of plasma membrane of seed |
| |
Authors: | Xiaofeng Wang Guanghua Zheng Shijie Yang Xinming Jing |
| |
Affiliation: | WANG Xiaofeng, ZHENG Guanghua, YANG Shijie and JING Xinming College of Biological Sciences, China Agricultural University, Beijing 100094, China; Institute of Botany , Chinese Academy of Sciences , Beijing 100093 , China Corresponding author |
| |
Abstract: | The effects of ultradry seed storage on the fluidity of plasma membrane have been investigated using the DPH fluorescent probe (1, 6-diphenyi-1, 3, 5,-hexatriene). The results demonstrated that the micro-viscosity of plasma membrane of ultradried seeds has no significant changes compared with the seeds which were stored under - 20℃ condition. However, there is a little adverse effect on the seeds with extreme dehydration. The results were consistent with higher vigor level of ultradried seed. It indicated that ultradry seed storage could maintain the physiological function of seed, protect the integrity of the membrane and improve the storability of seed. Furthermore, the results also revealed that sugar has the effect on protecting membrane structure and preserving the fluidity of the plasma membrane under seed dehydration. In the meantime, some mechanism about ultradry seed storage and the tolerance of dehydration of seed have been discussed. |
| |
Keywords: | ultradry storage fluorescent probe fluidity of plasma membrane Brassica chinensis Ulmus pumila. |
本文献已被 SpringerLink 等数据库收录! |
| 点击此处可从《科学通报(英文版)》浏览原始摘要信息 |
|
点击此处可从《科学通报(英文版)》下载全文 |
|