Probing molecular events associated with early development of thylakoid membranes by comparative proteomics and low temperature fluorescence

2016 ◽  
Vol 143 ◽  
pp. 401-415 ◽  
Author(s):  
Yangyang Wang ◽  
Kuixian Ji ◽  
Shihua Shen ◽  
Hui Chen
2021 ◽  
Author(s):  
Matthias Lottmann ◽  
Zachary C. de Rouyan ◽  
Linda Hasanovich ◽  
Steven M. W. Middleton ◽  
Michael Nicol-Seto ◽  
...  

2001 ◽  
Vol 56 (5-6) ◽  
pp. 369-374 ◽  
Author(s):  
Maya Velitchkova ◽  
Antoaneta Popova ◽  
Tzvetelina Markova

The relationship between thylakoid membrane fluidity and the process of photoinhibition at room and low (4 °C) temperature was investigated. Two different membrane perturbing agents - cholesterol and benzylalcohol were applied to manipulate the fluidity of isolated pea thylakoids. The photochemical activity of photosystem I (PSI) and photosystem II (PSII), polarographically determined, were measured at high light intensity for different time of illumination at both temperatures. The exposure of cholesterol- and benzylalcohol-treated thylakoid membranes to high light intensities resulted in inhibition of both studied photochemical activities, being more pronounced for PSII compared to PSI. Time dependencies of inhibition of PSI and PSII electron transport rates for untreated and membranes with altered fluidity were determined at 20 °C and 4 °C. The effect is more pronounced for PSII activity during low-temperature photoinhibition. The data are discussed in terms of the determining role of physico-chemical properties of thylakoid membranes for the response of photosynthetic apparatus to light stress.


1991 ◽  
Vol 97 (2) ◽  
pp. 804-810 ◽  
Author(s):  
Line Lapointe ◽  
Norman P. A. Huner ◽  
Robert Carpentier ◽  
Christina Ottander

PROTEOMICS ◽  
2015 ◽  
Vol 15 (11) ◽  
pp. 1884-1905 ◽  
Author(s):  
Liru Song ◽  
Zhongqi Liu ◽  
Jianhua Tong ◽  
Langtao Xiao ◽  
Hao Ma ◽  
...  

Aquaculture ◽  
2009 ◽  
Vol 296 (3-4) ◽  
pp. 347-358 ◽  
Author(s):  
Laia Navarro-Martín ◽  
Mercedes Blázquez ◽  
Jordi Viñas ◽  
Sílvia Joly ◽  
Francesc Piferrer

2016 ◽  
Vol 97 (6) ◽  
pp. 1241-1249 ◽  
Author(s):  
Wang Yi-Bin ◽  
Liu Fang-Ming ◽  
Zhang Xiu-Fang ◽  
Zhang Ai-Jun ◽  
Wang Bin ◽  
...  

Ice algae have successfully adapted to the extreme environmental conditions in the Antarctic, however the underlying mechanisms involved in the regulation and response of thylakoid membranes and chloroplast to low-temperature stress are still not well understood. In this study, changes in pigment concentrations, lipids, fatty acids and pigment protein complexes in thylakoid membranes and chloroplast after exposure to low temperature conditions were investigated using the Antarctic ice algae Chlamydomonas sp. ICE-L. Results showed that the chloroplasts of Chlamydomonas sp. ICE-L are distributed throughout the cell except in the nuclear region in the form of thylakoid lamellas which exists in the gap between organelles and the starch granules. Also, the structure of mitochondria has no obvious change after cold stress. Concentrations of Chl a, Chl b, monogalactosyl diacylglycerol, digalactosyl diacylglycerol and fatty acids were also observed to exhibit changes with temperature, suggesting possible adaptations to cold environments. The light harvesting complex, lutein and β-carotene played an important role for adaptation of ICE-L, and increasing of monogalactosyl diacylglycerol and digalactosyl diacylglycerol improved the overall degree of unsaturation of thylakoid membranes, thereby maintaining liquidity of thylakoid membranes. The pigments, lipids, fatty acids and pigment-protein complexes maintained the stability of the thylakoid membranes and the normal physiological function of Chlamydomonas sp. ICE-L.


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