Photoprotection regulated by phosphorus application can improve photosynthetic performance and alleviate oxidative damage in dwarf bamboo subjected to water stress

CORC > 西双版纳热带植物园 > 中国科学院西双版纳热带植物园 > 2012年后新成立研究组

	Photoprotection regulated by phosphorus application can improve photosynthetic performance and alleviate oxidative damage in dwarf bamboo subjected to water stress
	Liu, Chenggang; Wang, Yanjie; Jin, Yanqiang; Pan, Kaiwen; Zhou, Xingmei; Li, Na
刊名	PLANT PHYSIOLOGY AND BIOCHEMISTRY
	2017
卷号	118 期号:x 页码:88-97
关键词	Phosphorus Addition Ascorbate Electron Transport Capacity Xanthophyll Cycle Thermal Dissipation Oxidative Stress
英文摘要	Water and nutrients, particularly phosphorus (P), are the two most limiting factors for dwarf bamboo growth in tropical and subtropical areas. Dwarf bamboo is highly sensitive to water stress and often causes severe P deficiency in its growing soils due to the characteristics of shallower roots and expeditious growth. However, little is known about its photoprotective response to soil water deficit and the underlying mechanisms regulated by P application. In this study, a completely randomized design with two factors of two water regimes (well-watered and water-stressed) and two P levels (with and without P application) was arranged to investigate this issue in dwarf bamboo (Fargesia rufa) plants. Water stress not only decreased water status and photochemical activity but also increased lipid peroxidation due to reactive oxygen species, (ROS) accumulation irrespective of P application. In this case, thermal dissipation and antioxidative defense were promoted. Moreover, the role of the water water cycle under this stress still could not be ignored because it accounted for a large proportion of total energy (Jpsll). P application significantly enhanced photochemical activity accompanied by increased chlorophyll content in water stressed plants. Meanwhile, P application remarkably reduced thermal dissipation and hardly affected photorespiration and the water water cycle under water stress. Although P application only enhanced ascorbate (AsA) level, ROS, particularly hydrogen peroxide (H2O2), and lipid peroxidation were significantly reduced in water-stressed plants. Therefore, P application can improve the photosynthetic capacity by regulating the redistribution of energy absorbed by PSII antennae and independently activating of the H2O2-scavenging function of AsA to alleviate oxidative damage in F rufa plants, thereby improving their survival under water stress conditions. (C) 2017 Elsevier Masson SAS. All rights reserved.
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语种	英语
公开日期	2018-02-09
内容类型	期刊论文
源URL	[http://ir.xtbg.org.cn/handle/353005/10744]
专题	西双版纳热带植物园_2012年后新成立研究组
推荐引用方式 GB/T 7714	Liu, Chenggang,Wang, Yanjie,Jin, Yanqiang,et al. Photoprotection regulated by phosphorus application can improve photosynthetic performance and alleviate oxidative damage in dwarf bamboo subjected to water stress[J]. PLANT PHYSIOLOGY AND BIOCHEMISTRY,2017,118(x):88-97.
APA	Liu, Chenggang,Wang, Yanjie,Jin, Yanqiang,Pan, Kaiwen,Zhou, Xingmei,&Li, Na.(2017).Photoprotection regulated by phosphorus application can improve photosynthetic performance and alleviate oxidative damage in dwarf bamboo subjected to water stress.PLANT PHYSIOLOGY AND BIOCHEMISTRY,118(x),88-97.
MLA	Liu, Chenggang,et al."Photoprotection regulated by phosphorus application can improve photosynthetic performance and alleviate oxidative damage in dwarf bamboo subjected to water stress".PLANT PHYSIOLOGY AND BIOCHEMISTRY 118.x(2017):88-97.