干旱区生态环境知识资源中心(Arid): Evaluation of Plant Growth-Promoting and Salinity Ameliorating Potential of Halophilic Bacteria Isolated From Saline Soil

Arid

DOI	10.3389/fpls.2022.946217
	Evaluation of Plant Growth-Promoting and Salinity Ameliorating Potential of Halophilic Bacteria Isolated From Saline Soil
	Kapadia, Chintan; Patel, Nafisa; Rana, Ankita; Vaidya, Harihar; Alfarraj, Saleh; Ansari, Mohammad Javed; Gafur, Abdul; Poczai, Peter; Sayyed, R. Z.
通讯作者	Patel, N
来源期刊	FRONTIERS IN PLANT SCIENCE
ISSN	1664-462X
出版年	2022
卷号	13
英文摘要	Among the biotic and abiotic stress affecting the physical, chemical, and biological properties of soil, salinity is a major threat that leads to the desertification of cultivable land throughout the world. The existence of diverse and versatile microbial populations inhabiting the nutrient-rich soil and varied soil conditions affects the soil dynamism. A normal soil constitutes 600 million bacteria belonging to about 20,000 species, which is reduced to 1 million with 5,000-8,000 species in stress conditions. Plant growth-promoting rhizobacteria (PGPR) are in symbiotic association with the plant system, which helps in combating the abiotic stress and increases the overall productivity and yield. These microorganisms are actively associated with varied cellular communication processes through quorum sensing and secondary metabolites such as the production of Indole-3-acetic acid (IAA), exopolysaccharide (EPS) siderophore, ammonia, ACC deaminase, and solubilization of phosphate. The present study focused on the isolation, identification, and characterization of the microorganisms isolated from the seacoast of Dandi, Navsari. Twelve isolates exhibited PGP traits at a high salt concentration of 15-20%. AD9 isolate identified as Bacillus halotolerans showed a higher ammonia production (88 +/- 1.73 mu g/mL) and phosphate solubilization (86 +/- 3.06 mu g/mL) at 15% salt concentration, while AD32* (Bacillus sp. clone ADCNO) gave 42.67 +/- 1.20 mu g/mL IAA production at 20% salt concentration. AD2 (Streptomyces sp. clone ADCNB) and AD26 (Achromobacter sp. clone ADCNI) showed ACC deaminase activity of 0.61 +/- 0.12 and 0.60 +/- 0.04 nM alpha-ketobutyrate/mg protein/h, respectively. AD32 (Bacillus sp. clone ADCNL) gave a high siderophore activity of 65.40 +/- 1.65%. These isolates produced salinity ameliorating traits, total antioxidant activities, and antioxidant enzymes viz. superoxide dismutase (SOD), Glutathione oxidase (GSH), and catalase (CAT). Inoculation of the multipotent isolate that produced PGP traits and salinity ameliorating metabolites promoted the plant growth and development in rice under salinity stress conditions. These results in 50% more root length, 25.00% more plant dry weight, and 41% more tillers compared to its control.
英文关键词	abiotic stress ACC deaminase antioxidant enzymes biofilm IAA microbial diversity PGPR saline soil
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000886486100001
WOS关键词	SALT STRESS ; ZEA-MAYS ; RHIZOBACTERIA ; STREPTOMYCES ; TOLERANCE ; METABOLISM ; BIOCONTROL ; DIVERSITY ; ACID
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392865
推荐引用方式 GB/T 7714	Kapadia, Chintan,Patel, Nafisa,Rana, Ankita,et al. Evaluation of Plant Growth-Promoting and Salinity Ameliorating Potential of Halophilic Bacteria Isolated From Saline Soil[J],2022,13.
APA	Kapadia, Chintan.,Patel, Nafisa.,Rana, Ankita.,Vaidya, Harihar.,Alfarraj, Saleh.,...&Sayyed, R. Z..(2022).Evaluation of Plant Growth-Promoting and Salinity Ameliorating Potential of Halophilic Bacteria Isolated From Saline Soil.FRONTIERS IN PLANT SCIENCE,13.
MLA	Kapadia, Chintan,et al."Evaluation of Plant Growth-Promoting and Salinity Ameliorating Potential of Halophilic Bacteria Isolated From Saline Soil".FRONTIERS IN PLANT SCIENCE 13(2022).