scholarly journals Proteomic Analysis of Rice Subjected to Low Light Stress and Overexpression of OsGAPB Increases the Stress Tolerance

Rice ◽  
2020 ◽  
Vol 13 (1) ◽  
Author(s):  
Yangxuan Liu ◽  
Ting Pan ◽  
Yuying Tang ◽  
Yong Zhuang ◽  
Zhijian Liu ◽  
...  
2020 ◽  
Vol 114 ◽  
pp. 106316
Author(s):  
L.L. Griffiths ◽  
S.D. Melvin ◽  
R.M. Connolly ◽  
R.M. Pearson ◽  
C.J. Brown

2009 ◽  
Vol 36 (3) ◽  
pp. 222 ◽  
Author(s):  
Ramani Kumar Sarkar ◽  
Debabrata Panda

Rice (Oryza sativa L.) plants experience multiple abiotic stresses when they are submerged. In addition to the effects of submergence on gas exchange, water also creates shading of submerged plants. It is believed that responses to submergence are actually responses to low light stress, although during complete submergence in addition to low light other environmental factors like reduce movement of gases affect the plant growth, and therefore, the consequences of submergence are not always alike to shade. We monitored the extent to which shade and submergence change the plant height, chlorophyll a fluorescence characteristics and CO2 photosynthetic rate in three Indica rice cultivars, namely Sarala, Kalaputia and Khoda, which differed in submergence tolerance. There were both similarities and dissimilarities between the consequence of shade and submergence on rice plants. Under shade conditions, elongation growth was greater in submergence tolerant cultivars than the sensitive cultivar, whereas elongation growth was greater under submergence in sensitive cultivar. The reduction in chlorophyll content, damage to PSII, and decrease in CO2 photosynthetic rate was more notable under submergence than the shade conditions. Our results show that several JIP-test parameters clearly distinguish between submergence tolerant and sensitive cultivars, and responses to submergence among different rice cultivars differ depending on their sensitivity to submergence. There were different interactions between cultivar and shade (~low light) and cultivar and submergence.


2013 ◽  
Vol 33 (14) ◽  
pp. 4315-4323 ◽  
Author(s):  
周卫霞 ZHOU Weixia ◽  
李潮海 LI Chaohai ◽  
刘天学 LIU Tianxue ◽  
王秀萍 WANG Xiuping ◽  
闫志广 YAN Zhiguang

1994 ◽  
Vol 119 (5) ◽  
pp. 1006-1013 ◽  
Author(s):  
J. Lorene Embry ◽  
Eugene A. Nothnagel

Photosynthetic light harvesting was investigated under low-light stress conditions relevant to the problem of interior longevity of potted ornamental plants. Comparisons of leaf pigment levels and chlorophyll fluorescence excitation spectra were made for `Gutbier V-10 Amy' poinsettia (Euphorbia pulcherrima Willd.), which has poor interior longevity, and `Eckespoint Lilo' poinsettia, which has superior interior longevity. The results show that `Eckespoint Lilo' had higher total chlorophyll content per leaf area and lower chlorophyll a: chlorophyll b ratio than `Gutbier V-10 Amy'. In low-light stress, `Eckespoint Lilo' retained its chlorophyll or even accumulated higher levels than in high light, while `Gutbier V-10 Amy' did not exhibit higher chlorophyll retention in low light. Both cultivars acclimatized to low-light stress by decreasing the chlorophyll a: chlorophyll b ratio, and this acclimatization was evident sooner in younger, outer-canopy leaves above the pinch than in older leaves below the pinch. Both cultivars also increased the chlorophyll: carotenoid ratio in low light. These changes in pigment composition, which were essentially structural changes, were reflected in functional changes in light harvesting, as assessed by measurements of chlorophyll fluorescence excitation spectra.


2020 ◽  
Vol 113 ◽  
pp. 106235 ◽  
Author(s):  
Jianfeng Chen ◽  
Wenjing Ren ◽  
Qingchuan Chou ◽  
Haojie Su ◽  
Leyi Ni ◽  
...  

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