干旱区生态环境知识资源中心(Arid): Two PGPR strains from the rhizosphere of Haloxylon ammodendron promoted growth and enhanced drought tolerance of ryegrass

Arid

DOI	10.1016/j.plaphy.2021.02.003
	Two PGPR strains from the rhizosphere of Haloxylon ammodendron promoted growth and enhanced drought tolerance of ryegrass
	He, Aolei; Niu, Shuqi; Yang, Di; Ren, Wei; Zhao, Lingyu; Sun, Yunya; Meng, Laisheng; Zhao, Qi; Pare, Paul W.; Zhang, Jinlin
通讯作者	Zhang, JL (corresponding author), Lanzhou Univ, Coll Pastoral Agr Sci & Technol, Ctr Grassland Microbiome, State Key Lab Grassland Agroecosyst, Lanzhou 730000, Peoples R China.
来源期刊	PLANT PHYSIOLOGY AND BIOCHEMISTRY
ISSN	0981-9428
EISSN	1873-2690
出版年	2021
卷号	161 页码:84-95
英文摘要	Haloxylon ammodendron, a typical xerophyte, tolerates various abiotic stresses and is widely distributed in desert areas. Two PGPR strains, Bacillus sp. WM13-24 and Pseudomonas sp. M30-35, were previously isolated from the rhizosphere of H. ammodendron in Tengger Desert, Gansu province, northwest China. The aim of this study was to investigate the role of M30-35 and WM13-24 in drought stress alleviation of ryegrass (Lolium perenne L.). Under normal condition, both M30-35 and WM13-24 increased shoot fresh and dry weight, chlorophyll content, total nitrogen and phosphorus contents and altered phytohormone distribution compared to control. Moreover, after 7 days of drought stress, WM13-24 and M30-35 enhanced photosynthetic capacity, relative water content, the activities of catalase (CAT) and peroxidase (POD) and proline content, resulted in decreased malondialdehyde (MDA) content, relative membrane permeability (RMP) and H2O2 accumulation; interestingly, the two strains decreased ABA content in leaves. This study demonstrated that the two PGPR strains promoted ryegrass growth and root development via regulating plant hormone distribution and enhanced drought tolerance of ryegrass through improving the activities of antioxidant enzymes, regulating ABA signaling and maintaining plant growth. Our results indicated that PGPR strains from rhizosphere of the desert plant species could be considered as promising bioinoculants for grass plants.
英文关键词	Haloxylon ammodendron Rhizosphere PGPR Ryegrass Growth promotion Drought tolerance
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000637955100010
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/351337
作者单位	[He, Aolei; Niu, Shuqi; Yang, Di; Ren, Wei; Zhao, Lingyu; Sun, Yunya; Zhao, Qi; Pare, Paul W.; Zhang, Jinlin] Lanzhou Univ, Coll Pastoral Agr Sci & Technol, Ctr Grassland Microbiome, State Key Lab Grassland Agroecosyst, Lanzhou 730000, Peoples R China; [Meng, Laisheng] Jiangsu Normal Univ, Sch Life Sci, Key Lab Biotechnol Med Plant Jiangsu Prov, Xuzhou 221116, Jiangsu, Peoples R China; [Pare, Paul W.] Texas Tech Univ, Dept Chem & Biochem, Lubbock, TX 79409 USA
推荐引用方式 GB/T 7714	He, Aolei,Niu, Shuqi,Yang, Di,et al. Two PGPR strains from the rhizosphere of Haloxylon ammodendron promoted growth and enhanced drought tolerance of ryegrass[J]. 兰州大学,2021,161:84-95.
APA	He, Aolei.,Niu, Shuqi.,Yang, Di.,Ren, Wei.,Zhao, Lingyu.,...&Zhang, Jinlin.(2021).Two PGPR strains from the rhizosphere of Haloxylon ammodendron promoted growth and enhanced drought tolerance of ryegrass.PLANT PHYSIOLOGY AND BIOCHEMISTRY,161,84-95.
MLA	He, Aolei,et al."Two PGPR strains from the rhizosphere of Haloxylon ammodendron promoted growth and enhanced drought tolerance of ryegrass".PLANT PHYSIOLOGY AND BIOCHEMISTRY 161(2021):84-95.