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Spatial distribution and identification of bacteria in stressed environments capable to weather potassium aluminosilicate mineral

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Title Spatial distribution and identification of bacteria in stressed environments capable to weather potassium aluminosilicate mineral
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Creator Rajawat MVS, Singh R, Singh D, Yadav, AN, Kumar M and Saxena AK
 
Subject Distribution; Phylogenetic tree; Silicate mineral weathering bacteria (SWB); Stressed environments; Weathering potential.
 
Description Not Available
In the present study, we studied the distribution of silicate mineral weathering bacteria (SWB) in stressed environments that release potassium from insoluble source of mineral. Out of 972 isolates, 340 isolates were positive and mineral weathering potential ranged from 5.55 to 180.05%. Maximum abundance of SWB occurred 44.71% in saline environment followed by 23.53% in low temperature and 12.35% each in high temperature and moisture deficit. Among isolates, silicate mineral weathering efficiency ranged from 1.9 to 72.8 μg mL-1 available K in liquid medium. The phylogenetic tree of SWB discriminated in three clusters viz. Firmicutes, Proteobacteria and Actinobacteria. This is the first report on SWB in stressed environments and identified 27 genera and 67 species which is not reported earlier. Among them Bacillus was the predominant genera (58.60%) distantly followed by Pseudomonas (6.37%), Staphylococcus (5.10%) and Paenibacillus (4.46%). These bacterial strains could be developed as inoculants for biological replenishment of K in stressed soils. Graphical abstract.
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Date 2021-09-06T17:01:23Z
2021-09-06T17:01:23Z
2020-01-01
 
Type Research Paper
 
Identifier Not Available
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http://krishi.icar.gov.in/jspui/handle/123456789/61455
 
Language English
 
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