Acquired Traits Contribute More to Drought Tolerance in Wheat Than in Rice
作者机构：Department of Crop PhysiologyUniversity of Agricultural SciencesBengaluruIndia Centre for Crop Systems AnalysisDepartment of Plant SciencesWageningen University&ResearchPO Box 4306700 AK WageningenNetherlands Regional Centre for BiotechnologyFaridabadHaryanaIndia
出 版 物：《Plant Phenomics》 (植物表型组学（英文）)
年 卷 期：2020年第2卷第1期
页 面：172-187页
核心收录：
学科分类：0710[理学-生物学] 07[理学] 08[工学] 09[农学] 071007[理学-遗传学] 0901[农学-作物学] 0836[工学-生物工程] 090102[农学-作物遗传育种]
基 金：Wageningen University Fund
摘 要：Drought tolerance is governed by constitutive and acquired *** them has relevance for sustaining crop productivity under *** levels of stress induce specific mechanisms that protect metabolism when stress becomes ***,we report a comparative assessment of“acquired drought tolerance(ADT)traits in two rice cultivars,IR64(drought susceptible)and Apo(tolerant),and a drought-tolerant wheat cultivar,*** seedlings were exposed to progressive concentrations of methyl viologen(MV),a stress inducer,before transferring to a severe concentration.“Inducedseedlings showed higher tolerance and recovery growth than seedlings exposed directly to severe stress.A novel phenomic platform with an automated irrigation system was used for precisely imposing soil moisture stress to capture ADT traits during the vegetative *** progression of drought was achieved through a software-controlled automated irrigation *** facility allowed the maintenance of the same level of soil moisture irrespective of differences in transpiration,and hence,this platform provided the most appropriate method to assess ADT *** biomass decreased more in IR64 than in *** wheat cultivar showed lower levels of damage and higher recovery growth even compared to *** of ROS-scavenging enzymes and drought-responsive genes was significantly higher in Apo than in IR64,but differences were only marginal between Apo and *** wheat cultivar showed significantly higher stomatal conductance,carbon gain,and biomass than the rice cultivars,under *** differences in ADT traits between cultivars as well as between species can be utilised for improving drought tolerance in crop plants.
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