ER-08是一种多功能的促进植物生长的根际细菌,在盐胁迫和干旱胁迫下能促进胡芦巴植物的生长。

ER-08, a multifunctional plant growth-promoting rhizobacterium, promotes the growth of fenugreek ( L.) plants under salt and drought stress.

作者信息

Patel Margi, Islam Shaikhul, Husain Fohad Mabood, Yadav Virendra Kumar, Park Hyun-Kyung, Yadav Krishna Kumar, Bagatharia Snehal, Joshi Madhvi, Jeon Byong-Hun, Patel Ashish

机构信息

Department of Life Sciences, Hemchandracharya North Gujarat University, Patan, Gujarat, India.

Bangladesh Agricultural Research Council, Dhaka, Bangladesh.

出版信息

Front Microbiol. 2023 Aug 24;14:1208743. doi: 10.3389/fmicb.2023.1208743. eCollection 2023.

Abstract

INTRODUCTION

Sustainable agriculture and meeting the world's food needs face considerable obstacles from abiotic stresses such as soil salinity and drought. This critical issue was addressed by our current study, which sought to uncover multi-trait bioinoculants from hostile ecosystems that could help mitigate salinity and drought stresses at the same time.

METHODS

The ER-08 (BST) strain was isolated from the halotolerant plant Fagonia which was collected from the Little Rann of Kachchh, India. Various biochemical and molecular approaches were applied for the detailed characterization of the BST isolate.

RESULTS AND DISCUSSION

The BST isolate demonstrated notable plant growth-promoting qualities. Fenugreek seed biopriming was performed using the BST isolate. The effect of BST seed treatment on fenugreek developmental indices as well as abiotic alleviation was examined under greenhouse conditions. The BST produced 83.7 g ml gibberellins (GA) and 176.1 g ml indole-3 acetic acid. Moreover, hydrogen cyanide, siderophore, exopolysaccharides (EPS), ammonia, cellulase, protease, pectinase, and chitinase were also produced by the BST strain. Interestingly, 52% of mycelial growth was suppressed by the BST isolate under conditions. Furthermore, BST isolates functioned well under several abiotic stress conditions, for instance, salinity (4 and 6 ds m), pH (5, 7, and 9), drought (PEG6000 at 10%, 20%, and 30%), and temperature (25°C, 35°C, 37°C, and 55°C). This study indicates that the BST strain might serve as an effective bio-inoculant for minimizing the detrimental effects of abiotic stresses.

摘要

引言

可持续农业以及满足全球粮食需求面临着来自非生物胁迫(如土壤盐碱化和干旱)的巨大障碍。我们当前的研究解决了这一关键问题,该研究旨在从恶劣生态系统中发现能够同时帮助缓解盐碱化和干旱胁迫的多性状生物接种剂。

方法

ER - 08(BST)菌株是从印度卡奇大盐沼采集的耐盐植物法贡草中分离得到的。采用了各种生化和分子方法对BST分离株进行详细表征。

结果与讨论

BST分离株表现出显著的促进植物生长的特性。使用BST分离株对胡芦巴种子进行生物引发处理。在温室条件下研究了BST种子处理对胡芦巴发育指标以及非生物胁迫缓解的影响。BST产生了83.7微克/毫升赤霉素(GA)和176.1微克/毫升吲哚 - 3 - 乙酸。此外,BST菌株还产生了氰化氢、铁载体、胞外多糖(EPS)、氨、纤维素酶、蛋白酶、果胶酶和几丁质酶。有趣的是,在特定条件下,BST分离株抑制了52%的菌丝生长。此外,BST分离株在多种非生物胁迫条件下功能良好,例如,盐度(4和6 dS/m)、pH值(5、7和9)、干旱(10%、20%和30%的聚乙二醇6000)以及温度(25°C、35°C、37°C和55°C)。这项研究表明,BST菌株可能作为一种有效的生物接种剂,用于最大限度地减少非生物胁迫的有害影响。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/448e/10483830/c79969b28ed5/fmicb-14-1208743-g0001.jpg

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