Low sink-induced stomatal closure alters photosynthetic rates of source leaves in beans as dependent on H2O2 and ABA accumulation in guard cells

doi:10.1134/S1021443714020186

	Low sink-induced stomatal closure alters photosynthetic rates of source leaves in beans as dependent on H2O2 and ABA accumulation in guard cells
	Xu, M.; Duan, W.; Fan, P. G.; Wu, B. H.; Wang, L. J.; Ma, L.; Archbold, D. D.; Li, S. H.
	2014
发表期刊	RUSSIAN JOURNAL OF PLANT PHYSIOLOGY
ISSN	1021-4437
卷号	61 期号:3 页码:397-408
摘要	Low sink demand provided by pod removal and stem girdling of beans (Vicia faba, cv. Daqingshan) (-Sink) induced a significantly lower net photosynthetic rate (P (n)), stomatal conductance (g (s)), internal CO2 concentration (C (i)), and transpiration rate (E) compared with pod and root sink retention (CK). This depression in P (n) was due to stomatal limitation. Low sink demand of -Sink plants resulted in a higher leaf sucrose content, but a lower sucrose content in guard cells. Moreover, the significant accumulation of H2O2 and ABA were observed in both leaves and guard cells of -Sink plants. The most intensive electron dense deposit of cerium perhydroxides, produced by H2O2 reaction with cerium chloride, was present in the cell walls, especially the dorsal walls of guard cells. Immunogold electron-microscopy localization of ABA showed that ABA was distributed in ventral walls of guard cells and the intercellular space of mesophyll cells of -Sink leaves in contrast to CK plants. Application of exogenous sucrose to isolated bean leaves increased H2O2 and ABA contents. H2O2 and ABA in leaves was likely generated by two independently regulated pathways, each affected by the high sucrose concentration induced by low sink demand. Increased sucrose in leaves in response to low sink demand may have caused the increase of H2O2 and ABA, and their accumulation in mesophyll cells and guard cells was likely the primary cause for stomatal closure under low sink demand.
关键词	Vicia faba low sink demand photosynthesis stomatal closure abscisic acid hydrogen peroxide
学科领域	Plant Sciences
DOI	10.1134/S1021443714020186
收录类别	SCI
语种	英语
WOS关键词	ABSCISIC-ACID ; PEACH-TREES ; HYDROGEN-PEROXIDE ; VICIA-FABA ; STRESS ; REMOVAL ; DEMAND ; PHOTOPROTECTION ; LOCALIZATION ; MANIPULATION
WOS研究方向	Plant Sciences
WOS记录号	WOS:000335144400016
出版者	MAIK NAUKA/INTERPERIODICA/SPRINGER
文献子类	Article
出版地	NEW YORK
EISSN	1608-3407
资助机构	National Natural Science Foundation of China [30800743, 31071758]
作者邮箱	shhli@wbgcas.cn
引用统计	被引频次：5[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/2S10CLM1/27197
专题	中科院北方资源植物重点实验室
作者单位	1.[Xu, M. 2.Duan, W. 3.Fan, P. G. 4.Wu, B. H. 5.Wang, L. J. 6.Ma, L. 7.Li, S. H.] Chinese Acad Sci, Inst Bot, Beijing 100093, Peoples R China 8.[Xu, M.] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 9.[Archbold, D. D.] Univ Kentucky, Dept Hort, Agr Sci Ctr North N318, Lexington, KY 40546 USA 10.[Li, S. H.] Chinese Acad Sci, Wuhan Bot Garden, Key Lab Plant Germplasm Enhancement & Special Agr, Wuhan 430074, Peoples R China
推荐引用方式 GB/T 7714	Xu, M.,Duan, W.,Fan, P. G.,et al. Low sink-induced stomatal closure alters photosynthetic rates of source leaves in beans as dependent on H2O2 and ABA accumulation in guard cells[J]. RUSSIAN JOURNAL OF PLANT PHYSIOLOGY,2014,61(3):397-408.
APA	Xu, M..,Duan, W..,Fan, P. G..,Wu, B. H..,Wang, L. J..,...&Li, S. H..(2014).Low sink-induced stomatal closure alters photosynthetic rates of source leaves in beans as dependent on H2O2 and ABA accumulation in guard cells.RUSSIAN JOURNAL OF PLANT PHYSIOLOGY,61(3),397-408.
MLA	Xu, M.,et al."Low sink-induced stomatal closure alters photosynthetic rates of source leaves in beans as dependent on H2O2 and ABA accumulation in guard cells".RUSSIAN JOURNAL OF PLANT PHYSIOLOGY 61.3(2014):397-408.

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