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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
2017
Source PublicationPLANT PHYSIOLOGY AND BIOCHEMISTRY
Volume118Issue:xPages:88-97
AbstractWater 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.
Department其他
KeywordPhosphorus Addition Ascorbate Electron Transport Capacity Xanthophyll Cycle Thermal Dissipation Oxidative Stress
Language英语
Document Type期刊论文
Identifierhttp://ir.xtbg.org.cn/handle/353005/10744
Collection2012年后新成立研究组
Recommended Citation
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.
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