The potency of culturable fungi from tidal and non-tidal swamplands in Indonesia

Abstract

Tidal and non tidal swamp land in Indonesia is a relatively large sub-optimal land resource and has not been used optimally for agricultural land due to various problems. Technological innovation for swamp land, especially for fertilization (biofertilizer) must pay attention to the indigenous microbial community, so that the application of biofertilizer can be effective. The aim of this research was to culturable fungal diversity and their potential of the tidal swamp soil in South Kalimantan and non tidal swamp soil in South Sumatra. The research was conducted in the Microbiology laboratory – ICABIOGRAD. Two samples were isolated from tidal and non tidal swamp soils in South Kalimantan and South Sumatra. Serial dilution methods and molecular identification were used to assess the diversity of fungal species. Production of IAA, siderophores, and ACC Deaminase was evaluated. Results showed there are 11 species consisting of Trichoderma asperellum KS.26.1, Penicillium sp. KS.26.2, T.asperellum KS.26.3, P.simplicissimum SS.27.1, P.janthinellum SS.27.2, Talaromyces calidicanius SS.27.3, P.citrioviride SS.27.4, P.citrioviride SS.27.5, P.citrioviride SS.27.1 PDA, P.citrioviride SS.27.2 PDA, P.citrioviride SS.27.3 PDA were identified from both tidal and non-tidal swamplands. Potential analysis showed that all fungal isolates were able to produce IAA, siderophores, and ACC Deaminase. The fungal diversity was higher in the non-tidal swampland than the tidal swampland as revealed by the differences in percentage occurrence of fungal species. There are potential indigenous fungal in the swampland to be used to improve productivity of the soils.