干旱区生态环境知识资源中心(Arid): ACCD-producing rhizobacteria from an Andean Altiplano native plant (Parastrephia quadrangularis) and their potential to alleviate salt stress in wheat seedlings

Arid

DOI	10.1016/j.apsoil.2019.01.005
	ACCD-producing rhizobacteria from an Andean Altiplano native plant (Parastrephia quadrangularis) and their potential to alleviate salt stress in wheat seedlings
	Acuna, Jacquelinne J.1,2; Campos, Marco 1,2; Mora, Maria de la Luz 2; Jaisi, Deb P.3; Jorquera, Milko A.1,2
通讯作者	Acuna, Jacquelinne J.
来源期刊	APPLIED SOIL ECOLOGY
ISSN	0929-1393
EISSN	1873-0272
出版年	2019
卷号	136 页码:184-190
英文摘要	1-Aminocyclopropane-1-carboxylate deaminase (ACCD)-producing rhizobacteria are widely studied as plant growth-promoting rhizobacteria (PGPR) to alleviate a variety of stresses in plants. However, the presence of ACCD-producing rhizobacteria in plants that naturally occur in stressful ecosystems as well as the potential PGPR activity in agriculturally relevant plants has been poorly explored thus far. We isolated and characterized ACCD-producing rhizobacteria from Parastrephia quadrangularis, a native plant from the Andean Altiplano in Chile. The effects of selected ACCD-producing rhizobacteria on biomass and superoxide dismutase (SOD) activity of wheat seedlings subjected to salt stress (0.25 M and 0.45 M NaCl) were also evaluated. Ten out of 30 isolates showed ACCD activity (0.83-3.32 mu mol alpha-ketobutyrate mg(-1) h(-1)) and were identified as members of the Enterobacteriales order (mainly Serratia and Klebsiella). The ACCD-producing rhizobacteria also showed salt tolerance (from 2.5 to 7.5% NaCl) and other PGPR traits, such as the production of auxin (from 20.3 to 41 mu g mL(-1)) and siderophores (from 3.35 to 67.7%). Wheat seedlings inoculated with two selected ACCD-producing Klebsiella isolates (8LJA and 27IJA) significantly (P <= 0.05) increased the biomass (45-62%) content and SOD activity in roots (18-35%) with and without salt stress. This study demonstrated that PGPR were associated with native plants in the Andean Altiplano and offers a promising potential source of novel PGPR to alleviate salt stress in plants.
英文关键词	1-Aminocyclopropane-1-carboxylate deaminase Andean Altiplano Salt stress Plant growth-promoting rhizobacteria
类型	Article
语种	英语
国家	Chile ; USA
收录类别	SCI-E
WOS记录号	WOS:000458477300021
WOS关键词	GROWTH PROMOTION ; ATACAMA DESERT ; DEAMINASE ; BACTERIA ; SOILS ; PGPR
WOS类目	Soil Science
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214272
作者单位	1.Univ La Frontera, Dept Ciencias Quim & Recursos Nat, Lab Ecol Microbiana Aplicada EMAlab, Ave Francisco Salazar, Temuco 01145, Chile; 2.Univ La Frontera, Sci & Technol Bioresource Nucleus BIOREN, Network Extreme Environm Res NEXER, Ave Francisco Salazar, Temuco 01145, Chile; 3.Univ Delaware, Dept Plant & Soil Sci, Newark, DE 19716 USA
推荐引用方式 GB/T 7714	Acuna, Jacquelinne J.,Campos, Marco,Mora, Maria de la Luz,et al. ACCD-producing rhizobacteria from an Andean Altiplano native plant (Parastrephia quadrangularis) and their potential to alleviate salt stress in wheat seedlings[J],2019,136:184-190.
APA	Acuna, Jacquelinne J.,Campos, Marco,Mora, Maria de la Luz,Jaisi, Deb P.,&Jorquera, Milko A..(2019).ACCD-producing rhizobacteria from an Andean Altiplano native plant (Parastrephia quadrangularis) and their potential to alleviate salt stress in wheat seedlings.APPLIED SOIL ECOLOGY,136,184-190.
MLA	Acuna, Jacquelinne J.,et al."ACCD-producing rhizobacteria from an Andean Altiplano native plant (Parastrephia quadrangularis) and their potential to alleviate salt stress in wheat seedlings".APPLIED SOIL ECOLOGY 136(2019):184-190.