In a previous publication (2) evidence was presented that the synthesis of chitin in Neurospora crassa occurs by way of a glycosyl transfer from uridine diphosphate-N-acetylglucosamine. The similarity of the structure of chitin and cellulose suggested that a like mechanism may be operative in the biosynthesis of cellulose. It has been shown by Hestrin and Schramm (3) that non-viable lyophilized...

The present study was undertaken to test the efficacy of culture extracts of five Penicillium species viz. P. citrinum, P. digitatum, P. expansum, P. verrucosum and P. viridicatum against five different soilborne bacteria namely Salmonella gallinarum, Xenorhabdus luminescens, Xanthobacter autotrophicus, Acetobacter xylinum and Carnobacterium mobile. The species of Penicillum showed marked antib...

Alpha-amino-acid ester hydrolases are multimeric enzymes of potential use in antibiotic production. Knowledge of their structure could help to engineer these enzymes into economically viable biocatalysts. The alpha-amino-acid ester hydrolases from Xanthomonas citri and Acetobacter turbidans have been crystallized. The X. citri enzyme crystallizes in a primitive monoclinic space group (unit-cell...

The purpose of this study was to develop a new use for microbial cellulose produced by the bacterium, Acetobacter xylinum. There is a potential application of bacterial cellulose to construct a nano-scale laminar flow reactor. Small particles (i.e. enzymes or solid phase reactants) can be embedded in a growing cellulose matrix with geographic specificity. A fluid containing a substrate can then...