Phosphate solubilization by a wild type strain and UV-induced mutants of Aspergillus tubingensis

Varenyam Achal; V. V. Savant; M. Sudhakara Reddy

doi:10.1016/j.soilbio.2006.09.003

Phosphate solubilization by a wild type strain and UV-induced mutants of Aspergillus tubingensis

Varenyam Achal, V. V. Savant, M. Sudhakara Reddy^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

94 Scopus citations

Abstract

Phenotypic mutants of Aspergillus tubingensis were obtained by UV irradiation and phosphate solubilization ability of these mutants were studied and compared with the wild type strain. Low phosphate solubilizing mutant was also selected in this study. Among the different mutants, AtM-5 and AtM-2 showed highest P solubilization when tri-calcium phosphate and rock phosphate were used as P source compared to the wild type strain and other mutants. These mutants also showed maximum acid phosphatase and phytase activity. These results suggest that P solubilization by these isolates is due to lowering of pH of the culture filtrate and also the activity of acid phosphatase and phytase.

Original language	English
Pages (from-to)	695-699
Number of pages	5
Journal	Soil Biology and Biochemistry
Volume	39
Issue number	2
DOIs	https://doi.org/10.1016/j.soilbio.2006.09.003
State	Published - Feb 2007
Externally published	Yes

Keywords

Acid phosphatase activity
Aspergillus tubingensis
Phosphate rock
Phosphate solubilization
Phytase activity
UV mutants

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10.1016/j.soilbio.2006.09.003

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title = "Phosphate solubilization by a wild type strain and UV-induced mutants of Aspergillus tubingensis",

abstract = "Phenotypic mutants of Aspergillus tubingensis were obtained by UV irradiation and phosphate solubilization ability of these mutants were studied and compared with the wild type strain. Low phosphate solubilizing mutant was also selected in this study. Among the different mutants, AtM-5 and AtM-2 showed highest P solubilization when tri-calcium phosphate and rock phosphate were used as P source compared to the wild type strain and other mutants. These mutants also showed maximum acid phosphatase and phytase activity. These results suggest that P solubilization by these isolates is due to lowering of pH of the culture filtrate and also the activity of acid phosphatase and phytase.",

keywords = "Acid phosphatase activity, Aspergillus tubingensis, Phosphate rock, Phosphate solubilization, Phytase activity, UV mutants",

author = "Varenyam Achal and Savant, {V. V.} and Reddy, {M. Sudhakara}",

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AU - Achal, Varenyam

AU - Savant, V. V.

AU - Reddy, M. Sudhakara

PY - 2007/2

Y1 - 2007/2

N2 - Phenotypic mutants of Aspergillus tubingensis were obtained by UV irradiation and phosphate solubilization ability of these mutants were studied and compared with the wild type strain. Low phosphate solubilizing mutant was also selected in this study. Among the different mutants, AtM-5 and AtM-2 showed highest P solubilization when tri-calcium phosphate and rock phosphate were used as P source compared to the wild type strain and other mutants. These mutants also showed maximum acid phosphatase and phytase activity. These results suggest that P solubilization by these isolates is due to lowering of pH of the culture filtrate and also the activity of acid phosphatase and phytase.

AB - Phenotypic mutants of Aspergillus tubingensis were obtained by UV irradiation and phosphate solubilization ability of these mutants were studied and compared with the wild type strain. Low phosphate solubilizing mutant was also selected in this study. Among the different mutants, AtM-5 and AtM-2 showed highest P solubilization when tri-calcium phosphate and rock phosphate were used as P source compared to the wild type strain and other mutants. These mutants also showed maximum acid phosphatase and phytase activity. These results suggest that P solubilization by these isolates is due to lowering of pH of the culture filtrate and also the activity of acid phosphatase and phytase.

KW - Acid phosphatase activity

KW - Aspergillus tubingensis

KW - Phosphate rock

KW - Phosphate solubilization

KW - Phytase activity

KW - UV mutants

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M3 - 文章

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SN - 0038-0717

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JO - Soil Biology and Biochemistry

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Phosphate solubilization by a wild type strain and UV-induced mutants of Aspergillus tubingensis

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Keywords

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