The first isolation of Trichosporon coremiiforme from soil in Iran

Jamali, Samad; Gharaei, M H Mahmoudi

doi:10.18869/acadpub.cmm.1.3.3

Cited by 4 publications

(1 citation statement)

References 44 publications

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“…Genus Trichosporon Behrend is widely distributed in nature and can be found in soils mostly in tropical and temperate areas [77,78]. Some species are commonly recognized as opportunistic pathogens, and several species were isolated from insects [79][80][81].…”

Section: Discussionmentioning

confidence: 99%

First Report of Entomopathogenic Fungi Occurrence in Forest Soils in Croatia

Kovač

Tkaczuk

Pernek

2021

Forests

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Entomopathogenic fungi (EPF) in Croatian forests are known only from observations of insect cadavers that show obvious signs of disease. To date, their presence in soils has not been investigated. The aim of this study was to investigate their occurrence, diversity, and distribution, and to assess their density in tested soils. Soil samples were collected during 2018, 2019, and 2020 at different localities throughout the country, and analyzed by using a method of isolation of fungi on selective culture media. To assess the density of EPF in tested soils, colonies of individual fungal species were counted and recorded; the results were expressed as the number of colony-forming units (CFU) per gram of dry soil. After morphological and molecular analysis, five entomopathogenic fungal genera were identified: Beauveria spp., Metarhizium spp., Purpureocillium spp., Lecanicillium spp., and Paecilomyces spp. Results also showed that the range of a total EPF colony density in the soil varies from 4 × 103 to 27.4 × 103 CFU g−1. The most common were EPF of the genus Beauveria, which were recorded at four of five locations, and at 16 of 25 sampling points, but the highest average number (density) of colonies belonged to the genus Metarhizium. Since this type of research was never conducted in Croatia previously, this is the first evidence that insect pathogenic fungi are present in soils of different natural forest habitats. Such research can be useful in selecting and utilizing entomopathogens that are suitable for biological pest control in certain target areas.

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