[Effects of thermostress on the plasma membrane permeability of desert moss Tortula desertorum examined by in-situ micro-FTIR analysis].
A technique based on Fourier transform infrared microscope (FT-IRM) was developed to detect the corresponding changes in chemical composition associated with thermostress among aging tissues of the desert moss Tortula desertorum. The results indicated that wild leaves could accelerate the rate of carbohydrate synthesis and decrease the permeability of plasma membrane during heating at 45 degrees C for 1 h. Those biological responses can alleviate the damage of heat stress, so called thermotolerance. And the ability has a positive relation to the leaf age among various wild leaves. However, the secondary protonema and leaves, cultivated in artificial incubator, were unable to adapt the change of temperature immediately and the permeability of cellular membranes was increased.
Xu
Shu-jun
SJ
School of Enviroment Science and Engineering, Shanghai Jiaotong University, Shanghai 200240, China.
Chen
Wei-hong
WH
Chen
Ying-wen
YW
He
Ming
M
Wang
Yan
Y
D044002:Bryophyta / Q000737:chemistry* / Q000502:physiology*; D002463:Cell Membrane Permeability; D003889:Desert Climate; D006358:Hot Temperature; D017550:Spectroscopy, Fourier Transform Infrared / Q000379:methods*; D013312:Stress, Physiological