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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 Mahendra Vikram Singh Rajawat
Rajni Singh
Devendra Singh
Ajar Nath Yadav
Surender Singh
Murugan Kumar
Anil Kumar Saxena
 
Subject Silicate mineral weathering bacteria (SWB) . Weathering potential . Phylogenetic tree . Stressed environments . Distribution
 
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.
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Date 2022-03-26T11:25:40Z
2022-03-26T11:25:40Z
2020-01-01
 
Type Research Paper
 
Identifier Not Available
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http://krishi.icar.gov.in/jspui/handle/123456789/70712
 
Language English
 
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Publisher Not Available