Rock phosphate solubilization by psychrotolerant Pseudomonas spp. and their effect on lentil growth and nutrient uptake under polyhouse conditions

被引：21

作者：

Selvakumar, Govindan ^{[1
,3
]}

Joshi, Piyush ^{[1
]}

Suyal, Preeti ^{[1
]}

Mishra, Pankaj Kumar ^{[1
]}

Joshi, Gopal Krishna ^{[2
]}

Venugopalan, Rangarajan ^{[3
]}

Bisht, Jaideep Kumar ^{[1
]}

Bhatt, Jagdish Chandra ^{[1
]}

Gupta, Hari Shankar ^{[1
,4
]}

机构：

[1] Indian Council Agr Res, Vivekananda Inst Hill Agr, Almora 263601, Uttarakhand, India

[2] HNB Garhwal Univ, Dept Biotechnol, Srinagar 246174, Uttarakhand, India

[3] Indian Inst Hort Res, Bangalore 560089, Karnataka, India

[4] Indian Agr Res Inst, New Delhi 110012, India

来源：

ANNALS OF MICROBIOLOGY | 2013年 / 63卷 / 04期

关键词：

Psychrotolerant; Pseudomonas; Mineral phosphate solubilization; P solubilization kinetics; Plant growth promotion; Lentil; ALPINE SOIL; SP-NOV; PROMOTION; STRAIN; BACTERIA; RHIZOSPHERE; MICROORGANISMS; GENETICS; PUTIDA; L;

D O I：

10.1007/s13213-012-0594-5

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

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.

引用

页码：1353 / 1362

页数：10

共 42 条

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[42] EFFECT OF DIFFERENT SOURCES AND RATES OF NITROGEN AND SUPRA OPTIMAL LEVEL OF POTASSIUM FERTILIZATION ON GROWTH, YIELD AND NUTRIENT UPTAKE BY SUGARCANE. GROWN UNDER SALINE CONDITIONS
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