Functional Characterization of a Cystathionine β-Synthase Gene in Sulfur Metabolism and Pathogenicity of Aspergillus niger in Pear Fruit.

Aspergillus niger, which is a fungal pathogen, causes rot in a variety of fruits. In this study, the cystathionine β-synthase cbsA gene was deleted by homologous recombination to study its role in sulfur metabolism and pathogenicity of A. niger.

Structure and preventive effects against ethanol-induced gastric ulcer of an expolysaccharide from Lachnum sp.

An extracellular polysaccharide of Lachnum sp. (LEP) was purified by DEAE-cellulose 52 column chromatography and Sepharose CL-6B column chromatography. LEP-2a was identified to be a homogeneous component with an average molecular weight of 3.