1-Methylcyclopropene (1-MCP)-Induced Alteration in Leaf Photosynthetic Rate, Chlorophyll Fluorescence, Respiration and Membrane Damage in Rice (Oryza sativa L.) Under High Night Temperature

2014 ◽  
Vol 201 (2) ◽  
pp. 105-116 ◽  
Author(s):  
A. R. Mohammed ◽  
J. T. Cothren ◽  
M.-H. Chen ◽  
L. Tarpley
Keyword(s):  
Oryza Sativa ◽  
Chlorophyll Fluorescence ◽  
Photosynthetic Rate ◽  
Oryza Sativa L ◽  
Membrane Damage ◽  
Night Temperature ◽  
Leaf Photosynthetic Rate

QTL analysis of leaf photosynthetic rate and related physiological traits in rice (Oryza sativa L.)

Euphytica ◽  
2004 ◽  
Vol 135 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Sheng Teng ◽  
Qian Qian ◽  
Dali Zeng ◽  
Yasufumi Kunihiro ◽  
Kan Fujimoto ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Photosynthetic Rate ◽  
Qtl Analysis ◽  
Oryza Sativa L ◽  
Physiological Traits ◽  
Leaf Photosynthetic Rate

scholarly journals Response of the leaf photosynthetic rate to available nitrogen in erect panicle-type rice (Oryza sativa L.) cultivar, Shennong265

2016 ◽  
Vol 19 (3) ◽  
pp. 420-426 ◽  
Author(s):  
Chihiro Urairi ◽  
Yu Tanaka ◽  
Yoshihiro Hirooka ◽  
Koki Homma ◽  
Zhengjin Xu ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Photosynthetic Rate ◽  
Oryza Sativa L ◽  
Available Nitrogen ◽  
Leaf Photosynthetic Rate

scholarly journals Effects of Copper Oxide Nanoparticles on the Growth of Rice (Oryza Sativa L.) Seedlings and the Relevant Physiological Responses

2020 ◽  
Vol 17 (4) ◽  
pp. 1260 ◽  
Author(s):  
Zhongzhou Yang ◽  
Yifan Xiao ◽  
Tongtong Jiao ◽  
Yang Zhang ◽  
Jing Chen ◽  
...  
Keyword(s):  
Superoxide Dismutase ◽  
Oryza Sativa ◽  
Copper Oxide ◽  
Molecular Mechanisms ◽  
Oryza Sativa L ◽  
Membrane Damage ◽  
Carotenoid Content ◽  
Rice Seedlings ◽  
Cuo Nps ◽  
Rice Leaves

Rice (Oryza sativa L.), a major staple food for billions of people, was assessed for its phytotoxicity of copper oxide nanoparticle (CuO NPs, size < 50 nm). Under hydroponic condition, seven days of exposure to 62.5, 125, and 250 mg/L CuO NPs significantly suppressed the growth rate of rice seedlings compared to both the control and the treatment of supernatant from 250 mg/L CuO NP suspensions. In addition, physiological indexes associated with antioxidants, including membrane damage and antioxidant enzyme activity, were also detected. Treatment with 250 mg/L CuO NPs significantly increased malondialdehyde (MDA) content and electrical conductivity of rice shoots by 83.4% and 67.0%, respectively. The activity of both catalase and superoxide dismutase decreased in rice leaves treated with CuO NPs at the concentration of 250 mg/L, while the activity of the superoxide dismutase significantly increased by 1.66 times in rice roots exposed to 125 mg/L CuO NPs. The chlorophyll, including chlorophyll a and chlorophyll b, and carotenoid content in rice leaves decreased with CuO NP exposure. Finally, to explain potential molecular mechanisms of chlorophyll variations, the expression of four related genes, namely, Magnesium chelatase D subunit, Chlorophyll synthase, Magnesium-protoporphyrin IX methyltransferase, and Chlorophyllide a oxygenase, were quantified by qRT-PCR. Overall, CuO NPs, especially at 250 mg/L concentration, could affect the growth and development of rice seedlings, probably through oxidative damage and disturbance of chlorophyll and carotenoid synthesis.

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