Characterization of photosystem I in rice (Oryza sativa L.) seedlings upon exposure to random positioning machine

doi:10.1007/s11120-013-9908-0

IB-CAS > 中科院光生物学重点实验室

	Characterization of photosystem I in rice (Oryza sativa L.) seedlings upon exposure to random positioning machine
	Chen, Boya 1; Zhang, Aihong ; Lu, Qingtao; Kuang, Tingyun ; Lu, Congming 2; Wen, Xiaogang
	2013
发表期刊	PHOTOSYNTHESIS RESEARCH
ISSN	0166-8595
卷号	116 期号:1 页码:93-105
摘要	To gain a better understanding of how photosynthesis is adapted under altered gravity forces, photosynthetic apparatus and its functioning were investigated in rice (Oryza sativa L.) seedlings grown in a random positioning machine (RPM). A decrease in fresh weight and dry weight was observed in rice seedlings grown under RPM condition. No significant changes were found in the chloroplast ultrastructure and total chlorophyll content between the RPM and control samples. Analyses of chlorophyll fluorescence and thermoluminescence demonstrate that PSII activity was unchanged under RPM condition. However, PSI activity decreased significantly under RPM condition. 77 K fluorescence emission spectra show a blue-shift and reduction of PSI fluorescence emission peak in the RPM seedlings. In addition, RPM caused a significant decrease in the amplitude of absorbance changes of P700 at 820 nm (A (820)) induced by saturated far-red light. Moreover, the PSI efficiency (I broken vertical bar (I)) decreased significantly under RPM condition. Immunoblot and blue native gel analyses further illustrate that accumulation of PSI proteins was greatly decreased in the RPM seedlings. Our results suggest that PSI, but not PSII, is down-regulated under RPM condition.
关键词	Random positioning machine Clinorotation Rice (Oryza sativa L.) Photosynthesis Photosystem I Photosystem II
学科领域	Plant Sciences
DOI	10.1007/s11120-013-9908-0
收录类别	SCI
语种	英语
WOS关键词	ARABIDOPSIS-THALIANA ; THERMO-LUMINESCENCE ; CHLOROPHYLL-FLUORESCENCE ; PHOTOSYNTHETIC APPARATUS ; THYLAKOID MEMBRANE ; MICROGRAVITY ; PROTEINS ; LEAF ; PLANTS ; YIELD
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000323666200008
出版者	SPRINGER
文献子类	Article
出版地	DORDRECHT
EISSN	1573-5079
资助机构	Frontier Project of the Knowledge Innovation Engineering of Chinese Academy of Sciences ; Chinese manned spaceflight project
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/27889
专题	中科院光生物学重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, Photosynth Res Ctr, Key Lab Photobiol, Beijing 100093, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Natl Ctr Plant Gene Res, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Chen, Boya,Zhang, Aihong,Lu, Qingtao,et al. Characterization of photosystem I in rice (Oryza sativa L.) seedlings upon exposure to random positioning machine[J]. PHOTOSYNTHESIS RESEARCH,2013,116(1):93-105.
APA	Chen, Boya,Zhang, Aihong,Lu, Qingtao,Kuang, Tingyun,Lu, Congming,&Wen, Xiaogang.(2013).Characterization of photosystem I in rice (Oryza sativa L.) seedlings upon exposure to random positioning machine.PHOTOSYNTHESIS RESEARCH,116(1),93-105.
MLA	Chen, Boya,et al."Characterization of photosystem I in rice (Oryza sativa L.) seedlings upon exposure to random positioning machine".PHOTOSYNTHESIS RESEARCH 116.1(2013):93-105.

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