Sulfur assimilation using gaseous carbonyl sulfide by the soil fungus Trichoderma harzianum.

ABSTRACT: Fungi have the capacity to assimilate a diverse range of both inorganic and organic sulfur compounds. It has been recognized that all sulfur sources taken up by fungi are in soluble forms. In this study, we present evidence that fungi can utilize gaseous carbonyl sulfide (COS) for the assimilation of a sulfur compound. We found that the filamentous fungus Trichoderma harzianum strain THIF08, which has constitutively high COS-degrading activity, was able to grow with COS as the sole sulfur source. Cultivation with ³⁴S-labeled COS revealed that sulfur atom from COS was incorporated into intracellular metabolites such as glutathione and ergothioneine. COS degradation by strain THIF08, in which as much of the moisture derived from the agar medium as possible was removed, indi

SUBMITTER: Iizuka R 

PROVIDER: S-EPMC10880591 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature