气候变化领域集成服务门户(CCPortal): HaASR1 gene cloned from a desert shrub, Haloxylon ammodendron, confers drought tolerance in transgenic Arabidopsis thaliana

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DOI	10.1016/j.envexpbot.2020.104251
	HaASR1 gene cloned from a desert shrub, Haloxylon ammodendron, confers drought tolerance in transgenic Arabidopsis thaliana
	Gao, Huijuan; Lu, Xinpei; Ren, Wei; Sun, Yunya; Zhao, Qi; Wang, Guangpeng; Wang, Runjuan; Wang, Yongping; Zhang, Hong; Wang, Suomin; Meng, Laisheng; Zhang, Jinlin
通讯作者	Zhang, JL (通讯作者)
发表日期	2020
ISSN	0098-8472
EISSN	1873-7307
卷号	180
英文摘要	Abiotic stresses pose adverse impact on plant growth and development and exploring the stress tolerance genes from dominant species is still urgent. The desert shrub, Haloxylon ammodendron, a C-4 and succulent xerohalophyte species, has great drought and salt tolerance. Here, we reported the isolation and functions analysis of HaASR1 (abscisic acid, stress, and ripening) from H. ammodendron. HaASR1 interacts with HaPrxQ and HaBADH and may function in preventing PrxQ and BADH from denaturation in plants under drought stress. Overexpression of HaASR1 reduces the sensitivity of Arabidopsis plants to exogenous ABA and decreases the endogenous ABA level through down-regulating ABA biosynthesis genes under drought stress, which making the plants display less inhibition of shoot growth and enhanced drought tolerance. Overexpression of HaASR1 significantly enhances photosynthetic capacity of Arabidopsis plants under drought stress by reducing H2O2 accumulation through up-regulating AtCAT2, AtAPX1 and AtPrxQ and maintaining relatively integrity of chloroplasts. Overexpression of HaASR1 also significantly improves water-retaining ability. Taken together, we propose that HaASR1 plays critical roles in plant drought stress adaptation by making the plants partially defective in ABA signaling and participating in drought tolerance regulation through nonstomatal pathways, enhancing ROS-scavenging ability and water-retaining ability, which is different from the functions of previously reported ASR genes from other plant species. This research also reveals that HaASR1 gene from the desert shrub, Haloxylon ammodendron, has potential application values in improving abiotic stresses of other plant species by genetic engineering.
关键词	ABSCISIC-ACID STRESS TOLERANCE ABIOTIC STRESS SALINITY TOLERANCE ASR PROTEIN CROSS-TALK RESISTANCE TOMATO SUGAR NA+
英文关键词	Haloxylon ammodendron; HaASR1; ABA; H2O2; Photosynthesis; Drought tolerance
语种	英语
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology
WOS类目	Plant Sciences ; Environmental Sciences
WOS记录号	WOS:000579447700022
来源期刊	ENVIRONMENTAL AND EXPERIMENTAL BOTANY
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259957
推荐引用方式 GB/T 7714	Gao, Huijuan,Lu, Xinpei,Ren, Wei,et al. HaASR1 gene cloned from a desert shrub, Haloxylon ammodendron, confers drought tolerance in transgenic Arabidopsis thaliana[J]. 中国科学院青藏高原研究所,2020,180.
APA	Gao, Huijuan.,Lu, Xinpei.,Ren, Wei.,Sun, Yunya.,Zhao, Qi.,...&Zhang, Jinlin.(2020).HaASR1 gene cloned from a desert shrub, Haloxylon ammodendron, confers drought tolerance in transgenic Arabidopsis thaliana.ENVIRONMENTAL AND EXPERIMENTAL BOTANY,180.
MLA	Gao, Huijuan,et al."HaASR1 gene cloned from a desert shrub, Haloxylon ammodendron, confers drought tolerance in transgenic Arabidopsis thaliana".ENVIRONMENTAL AND EXPERIMENTAL BOTANY 180(2020).