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《农业科学与工程前沿(英文)》 2021年 第8卷 第2期
Late embryogenesis abundant (LEA) genes encode highly hydrophilic proteins that are essential in abiotic stress responses. However, most LEA genes in higher plants have not yet been investigated. This study identified an LEA family gene (PtrLEA7) from Poncirus trifoliata and studied its function in drought tolerance. The full-length coding sequence of PtrLEA7 was 420 bp encoding a protein of 139 amino acids. Phylogenetic analysis shows that PtrLEA7 protein belongs to the LEA_4 subfamily. Expression profiling by qPCR found that PtrLEA7 was strongly induced by dehydration, cold and ABA treatments, and slightly induced by salt stress. Subcellular localization reveals that PtrLEA7 protein was located in both cytoplasm and nucleus. To investigate its function, transgenic plants of both tobacco and Poncirus trifoliata overexpressing PtrLEA7 were obtained. Stress tolerance assays show that overexpression lines had enhanced dehydration and drought tolerance compared with wild type plants, indicating that PtrLEA7 positively regulates drought tolerance. In addition, transgenic plants had much higher expression levels of three antioxidant enzyme genes (CAT, SOD and POD) and significantly increased catalase enzyme activity, accompanied by reduced reactive oxygen species accumulation in comparison with wild type plants. Collectively, this study demonstrates that PtrLEA7 can confer enhanced drought tolerance partially via enhancing antioxidant capacity.
《环境科学与工程前沿(英文)》 2022年 第16卷 第6期 doi: 10.1007/s11783-021-1513-4
• Season and landform influenced spatiotemporal patterns of abundant and rare taxa.
关键词: Rare taxa Biogeography Community assembly Bacterioplankton The Yangtze River
Tonglu WEI, Dalong GUO, Jihong LIU
《农业科学与工程前沿(英文)》 页码 236-246 doi: 10.15302/J-FASE-2020368
关键词: abiotic stress antioxidant drought late embryogenesis abundant Poncirus trifoliata
《化学科学与工程前沿(英文)》 2023年 第17卷 第4期 页码 387-394 doi: 10.1007/s11705-022-2250-3
关键词: self-activation zinc organic salts abundant mesopores symmetric supercapacitor liquid electrolyte
WU Rui, LI Guangyi, ZHANG Zongyi, REN Yulong, HAN Weijian
《环境科学与工程前沿(英文)》 2007年 第1卷 第3期 页码 292-298 doi: 10.1007/s11783-007-0049-6
标题 作者 时间 类型 操作
OVEREXPRESSION OF PTRLEA7, A LATE EMBRYOGENESIS ABUNDANT FAMILY GENE FROM PONCIRUS TRIFOLIATA, CONFERS
期刊论文
Distinct community assembly processes underlie significant spatiotemporal dynamics of abundant and rare
期刊论文
Hierarchical porous carbon derived from one-step self-activation of zinc gluconate for symmetric supercapacitors with high energy density
期刊论文