Effect of buffering on the phosphate-solubilizing ability of microorganisms

被引：114

作者：

Gyaneshwar, P

Kumar, GN ^{[1
]}

Parekh, LJ

机构：

[1] Maharaja Sayajirao Univ Baroda, Fac Sci, Dept Biochem, Baroda 390002, Gujarat, India

[2] Indian Inst Sci, Ctr Genet Engn, Bangalore 560012, Karnataka, India

来源：

WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY | 1998年 / 14卷 / 05期

关键词：

organic acids and phosphate solubilizing microorganisms; phosphate solubilization;

D O I：

10.1023/A:1008852718733

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：

Native microflora present in the alkaline vertisols and two phosphate-solubilizing bacteria (PSB) isolated from soil using conventional screening media could not release phosphorus from alkaline Indian vertisol soils supplemented with carbon and nitrogen sources. The two PSBs could solubilize both rock phosphate and di-calcium phosphate in unbuffered media but failed to solubilize rock phosphate in buffered media. The organic acids secreted by these PSBs were 20-50 times less than that required to solubilize phosphorus from alkaline soil.

引用

页码：669 / 673

页数：5

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