원문정보
Isolation and Cultural Characteristics of a Phosphate-solubilizing Fungus, Penicillium sp. PS-113
초록
영어
A fungus with high phosphate solubilizing activites was isolated from soil using potato dextrose agar-calcium phosphate medium and identified to Penicillium sp. PS-113, based on the morphological characteristics of conidiophore and conidia; flask shape of phialide, simple branching type of conidiophore, and columnar shape of conidial head, in malt extract agar and potato dextrose agar media. The optimum temperature ad initial pH to solubilize rock phosphate in potato dextrose broth-rock phosphate medium were 30℃ and pH 8.0, respectively. In these conditions phosphate solubilizing activities of Penicillium sp. PS-113 against four types of insoluble phosphate like tricalcium-phosphate, aluminium phosphate, hydroxyapatite and rock phosphate were quantitatively determined. As results, this fungus highly produced free phosphates to the culture broth with the concentrations of 1,283 ppm against tricalcium-phosphate, 585 ppm against rock phosphate, 528 ppm against aluminium phosphate, and 242 ppm against hydroxyapatite, respectively.
목차
재료 및 방법
인산가용화균의 분리
유리인산의 농도측정
분리균주의 동정
배양특성조사
결과 및 고찰
인광석의 성분분석
인산가용화균의 분리 및 동정
인산가용화균의 배양특성조사
요약
감사의 글
참고문헌