Insolating and selecting the strains of fungi that have the abilities to dissolve inorganic phosphates in Ngoc Lang village, Binh Ngoc commune, Tuy Hoa City, Phu Yen province

Abstract

Phosphorus is one of the major essential nutrients for biological growth and development of plants. Some strains of fungi that live in the soil have the abilities to dissolve inorganic phosphates, which are difficult to dissolve into soluble phosphates, which help plants to absorb. The current research results showed that, from 19 different locations of vegetables in Ngoc Lang vegetable-growing village, 162 strains of dissoluble inorganic phosphates were isolated. In particular, two strains, named M62 and M91, have the highest solubility of Ca₃(PO₄)₂. Based on the nucleotide sequences of 28S rRNA, two strains M62 and M91 were identified as Aspergillus niger and Aspergillus oryzae, respectively.

Keywords: Aspergillus, molds, inorganic phosphate, isolation, selection