Physiological, proteomic and transcriptional responses of wheat to combination of drought or waterlogging with late spring low temperature
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Physiological, proteomic and transcriptional responses of wheat to combination of drought or waterlogging with late spring low temperature. / Li, Xiangnan; Cai, Jian; Liu, Fulai; Dai, Tingbo; Cao, Weixing; Jiang, Dong.
In: Functional Plant Biology, Vol. 41, No. 7, 2014, p. 690-703.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Physiological, proteomic and transcriptional responses of wheat to combination of drought or waterlogging with late spring low temperature
AU - Li, Xiangnan
AU - Cai, Jian
AU - Liu, Fulai
AU - Dai, Tingbo
AU - Cao, Weixing
AU - Jiang, Dong
PY - 2014
Y1 - 2014
N2 - Spring low temperature events affect winter wheat (Triticum aestivum L.) during late vegetative or reproductive development, exposing plants to a subzero low temperature stress when winter hardening is lost. The increased climatic variability results in wheat being exposed to more frequent adverse impacts of combined low temperature and water stress, including drought and waterlogging. The responses of potted wheat plants cultivated in climatic chambers to these environmental perturbations were investigated at physiological, proteomic and transcriptional levels. At the physiological level, the depressed carbon (C) assimilation induced by the combined stresses was due mainly to stomatal closure and damage of photosynthetic electron transport. Biochemically, the adaptive effects of early moderate drought or waterlogging stress were associated with the activation of antioxidant enzyme system in chloroplasts and mitochondria of leaf under low temperature. Further proteomic analysis revealed that the oxidative stress defence, C metabolism and photosynthesis related proteins were modulated by the combined low temperature and water stress. Collectively, the results indicate that impairment of photosynthesis and C metabolism was responsible for the grain yield loss in winter wheat under low temperature in combination with severe drought or waterlogging stress. In addition, prior mild drought or waterlogging contributed to the homeostasis of oxidative metabolism and relatively better photosynthesis, and hence to less grain yield loss under later spring low temperature stress.
AB - Spring low temperature events affect winter wheat (Triticum aestivum L.) during late vegetative or reproductive development, exposing plants to a subzero low temperature stress when winter hardening is lost. The increased climatic variability results in wheat being exposed to more frequent adverse impacts of combined low temperature and water stress, including drought and waterlogging. The responses of potted wheat plants cultivated in climatic chambers to these environmental perturbations were investigated at physiological, proteomic and transcriptional levels. At the physiological level, the depressed carbon (C) assimilation induced by the combined stresses was due mainly to stomatal closure and damage of photosynthetic electron transport. Biochemically, the adaptive effects of early moderate drought or waterlogging stress were associated with the activation of antioxidant enzyme system in chloroplasts and mitochondria of leaf under low temperature. Further proteomic analysis revealed that the oxidative stress defence, C metabolism and photosynthesis related proteins were modulated by the combined low temperature and water stress. Collectively, the results indicate that impairment of photosynthesis and C metabolism was responsible for the grain yield loss in winter wheat under low temperature in combination with severe drought or waterlogging stress. In addition, prior mild drought or waterlogging contributed to the homeostasis of oxidative metabolism and relatively better photosynthesis, and hence to less grain yield loss under later spring low temperature stress.
KW - low temperature
KW - proteome
KW - Triticum aestivum.
U2 - 10.1071/FP13306
DO - 10.1071/FP13306
M3 - Journal article
AN - SCOPUS:84902652080
VL - 41
SP - 690
EP - 703
JO - Australian Journal of Plant Physiology
JF - Australian Journal of Plant Physiology
SN - 1445-4408
IS - 7
ER -
ID: 129915042