Parental drought priming enhances tolerance to low temperature in wheat (Triticum aestivum) offspring
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Parental drought priming enhances tolerance to low temperature in wheat (Triticum aestivum) offspring. / Guo, Junhong; Wang, Hongyan; Liu, Shengqun; Wang, Yongjun; Liu, Fulai; Li, Xiangnan.
In: Australian Journal of Plant Physiology, Vol. 49, No. 11, 2022, p. 946-957.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Parental drought priming enhances tolerance to low temperature in wheat (Triticum aestivum) offspring
AU - Guo, Junhong
AU - Wang, Hongyan
AU - Liu, Shengqun
AU - Wang, Yongjun
AU - Liu, Fulai
AU - Li, Xiangnan
PY - 2022
Y1 - 2022
N2 - Low temperature is one of the major environmental stresses that limit crop growth and grain yield in wheat (Triticum aestivum L.). Drought priming at the vegetative stage could enhance wheat tolerance to later cold stress; however, the transgenerational effects of drought priming on wheat offspring's cold stress tolerance remains unclear. Here, the low temperature responses of offspring were tested after the parental drought priming treatment at grain filling stage. The offspring plants from parental drought priming treatment had a higher abscisic acid (ABA) level and lower osmotic potential (Ψo) than the control plants under cold conditions. Moreover, parental drought priming increased the antioxidant enzyme activities and decreased hydrogen peroxide (H2O2) accumulation in offspring. In comparison to control plants, parental drought priming plants had a higher ATP concentration and higher activities of ATPase and the enzymes involved in sucrose biosynthesis and starch metabolism. The results indicated that parental drought priming induced low temperature tolerance in offspring by regulating endogenous ABA levels and maintaining the redox homeostasis and the balance of carbohydrate metabolism, which provided a potential approach for cold resistant cultivation in wheat.
AB - Low temperature is one of the major environmental stresses that limit crop growth and grain yield in wheat (Triticum aestivum L.). Drought priming at the vegetative stage could enhance wheat tolerance to later cold stress; however, the transgenerational effects of drought priming on wheat offspring's cold stress tolerance remains unclear. Here, the low temperature responses of offspring were tested after the parental drought priming treatment at grain filling stage. The offspring plants from parental drought priming treatment had a higher abscisic acid (ABA) level and lower osmotic potential (Ψo) than the control plants under cold conditions. Moreover, parental drought priming increased the antioxidant enzyme activities and decreased hydrogen peroxide (H2O2) accumulation in offspring. In comparison to control plants, parental drought priming plants had a higher ATP concentration and higher activities of ATPase and the enzymes involved in sucrose biosynthesis and starch metabolism. The results indicated that parental drought priming induced low temperature tolerance in offspring by regulating endogenous ABA levels and maintaining the redox homeostasis and the balance of carbohydrate metabolism, which provided a potential approach for cold resistant cultivation in wheat.
U2 - 10.1071/FP22043
DO - 10.1071/FP22043
M3 - Journal article
C2 - 35871526
VL - 49
SP - 946
EP - 957
JO - Australian Journal of Plant Physiology
JF - Australian Journal of Plant Physiology
SN - 1445-4408
IS - 11
ER -
ID: 315175701