Penicillium solitum : a mesophilic, psychrotolerant fungus present in marine sediments from Antarctica

摘要: Few studies have addressed the diversity of cultivable fungi from marine sediments, especially those Antarctica. In present study, we evaluated presence and distribution in core sediments obtained 100, 500, 700 1,100 m below Antarctic Ocean surface. Fifty-two fungal isolates were identified as Penicillium solitum by their physiological morphological characteristics, identity 12 representative was further confirmed sequencing ITS1-5.8S-ITS2 β-tubulin genes. P. displayed high sequence similarity to taxa that been described other habitats. Conidial germination occurred at low temperatures salinities. addition, extracellular amylasic esterasic activities. The isolation Antarctica its survival salt concentrations suggest it is adapted cold halophilic environment oceans. Because produces enzymes, an interesting eukaryotic model for study structure–function relationships during enzymatic biocatalysis biotransformation under extreme conditions. Marine may represent a unique source obtaining extremophilic fungi. New using different culture media, ranges pressure conditions well metagenomic techniques can assist understanding communities across Ocean.