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Isolation and characterization of novel plant growth promoting Micrococcus sp NII-0909 and its interaction with cowpea

DRS at CSIR-National Institute of Oceanography

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Title Isolation and characterization of novel plant growth promoting Micrococcus sp NII-0909 and its interaction with cowpea
 
Creator Dastager, S.G.
Deepa, C.K.
Pandey, A.
 
Subject microorganisms
aquatic plants
Micrococcus
biofertilizer
 
Description A phosphate-solubilizing bacterial strain NII-0909 isolated from the Western ghat forest soil in India was identified as Micrococcus sp on the basis of phenotypic characteristics, carbon source utilization pattern, fatty acid methyl esters analysis, and 16S rRNA gene sequence. The strain exhibited the plant growthpromoting attributes of phosphate solubilization, auxin production, 1-aminocyclopropane-1-carboxylate deaminase activity, and siderophore production. It was able to solubilize (122.4 mg of Ca sub(3)PO sub(4) ml sup(-1), and produce IAA (109 mu g ml sup(-1)) at 30 degrees C. P-solubilizing activity of the strain NII-0909 was associated with the release of organic acids and a drop in the pH of the NBRIP medium. HPLC analysis detected two organic acids in the course of P-solubilization. A significant increase in the growth of cow pea was recorded for inoculations under controlled conditions. Scanning electron microscopic study revealed the root colonization of strain on cow pea seedlings. These results demonstrate that isolates NII-0909 has the promising PGPR attributes to be develop as a biofertilizer to enhance soil fertility and promote the plant growth.
 
Date 2010-11-29T06:44:34Z
2010-11-29T06:44:34Z
2010
 
Type Journal Article
 
Identifier Plant Physiology and Biochemistry, vol.48(12); 987-992
http://drs.nio.org/drs/handle/2264/3742
 
Language en
 
Rights An edited version of this paper was published by Elsevier. Copyright [2010] Elsevier
 
Publisher Elsevier