ISOLATION AND IDENTIFICATION OF SOIL MICROORGANISMS IN SELECTED POTATO FIELDS OF BANGLADESH

Abstract

Microorganisms from the rhizoosphere soil was isolated from different potato fields of Bangladesh. Seventeen soil samples were analyzed for the incidence of microorganisms from potato field soils. A total of seven fungal species, one bacterium species and one nematode species were characterized using various isolation and identification methods. The predominant fungi isolated include among others; Alternaria solani, Aspergillus niger, Penicillium sp., Rhizopus stolonifer, Bipolaris sp., Phytophthora infestans , Fusarium oxysporum, Ralstonia solanacearum and Meloidogyne sp.. And individual colonies of fungi, bacteria and nematode were counted from media and compared their presence in soil in respect of different locations of potato fields. The present study aimed to find out the fungal diversity and this was the first reported examination of the microbiological diversity of soil microorganisms of some selected potato fields in Bangladesh.