Acta Botanica Croatica, Vol. 66 No. 2, 2007.
Original scientific paper
Solubilization of tricalcium phosphate and rock phosphate by microbes isolated from chromite, iron and manganese mines
Nibha Gupta
; Microbiology Laboratory, Division of Biotechnology, Regional Plant Resource Centre, Nayapalli, Bhubaneswar 751 105, Orissa, India
Jyotasanmayee Sabat
; Microbiology Laboratory, Division of Biotechnology, Regional Plant Resource Centre, Nayapalli, Bhubaneswar 751 105, Orissa, India
Reena Parida
; Microbiology Laboratory, Division of Biotechnology, Regional Plant Resource Centre, Nayapalli, Bhubaneswar 751 105, Orissa, India
Dipika Kerkatta
; Microbiology Laboratory, Division of Biotechnology, Regional Plant Resource Centre, Nayapalli, Bhubaneswar 751 105, Orissa, India
Abstract
Among 62 fungi and 253 bacteria obtained from heavy metal mines of Orissa (India) screened for phosphate solubilization properties, 12 fungi and 19 bacteria were found to solubilise tricalcium phosphate (TCP). Penicillium sp. 21 solubilised and released 81.48 mg PmL–1 whereas Penicillium sp. 2 showed better efficiency of rock phosphate solubilization and produced 4.87 mg PmL–1 into the liquid culture. Bacterial strains were comparatively poor solubilisers of TCPand rock phosphate in solid and liquid culture. The bacteria and fungi isolated from the mines of Orissa were endowed with phosphate solubilization
properties. Phosphate solubilising fungi were acid producers and more efficient than bacterial isolates. Penicillium sp.21 and Penicillium sp. 2 were confirmed the best for TCP and rock phosphate solubilization.
Keywords
Phosphate; solubilization; Penicillium fungi; bacteria
Hrčak ID:
17186
URI
Publication date:
20.10.2007.
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