期刊
ANNALS OF MICROBIOLOGY
卷 63, 期 4, 页码 1353-1362出版社
BMC
DOI: 10.1007/s13213-012-0594-5
关键词
Psychrotolerant; Pseudomonas; Mineral phosphate solubilization; P solubilization kinetics; Plant growth promotion; Lentil
资金
- Indian Council of Agricultural Research, New Delhi, under the project Application of Microorganisms in Agriculture and Allied Sectors (AMAAS)
Psychrotolerant Pseudomonas isolates (RT5RP2 and RT6RP) isolated from the rhizoplane of wild grass at 3,100 and 3,800 m above mean sea level, respectively, from Rudraprayag district of Uttarakhand (India), were found to solubilize Udaipur rock phosphate (URP). Both isolates grew at temperatures ranging from 4 to 30 A degrees C. Kinetics of phosphate solubilization by the bacterial strains showed a nonlinear regression of the rate of P solubilization, which fitted best in the power model, and showed a declining trend across three different temperatures. Under pot culture conditions, bacterization of lentil seeds (cv. VL Masoor 507) with the psychrotolerant Pseudomonas strains when combined with URP as a sole source of phosphorus resulting in significant enhancement in P uptake of the plants, compared to the application of rock phosphate alone.
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