The family Acetobacteraceae currently includes three known nitrogen-fixing species, Gluconacetobacter diazotrophicus, G. johannae and G. azotocaptans. In the present study, acetic acid-producing nitrogen-fixing bacteria were isolated from four different wetland rice varieties cultivated in the state of Tamilnadu, India. Most of these isolates were identified as G. diazotrophicus on the basis of...

Background Reconstruction and applications of genome scale metabolic models have truly influenced the field of systems biology [1,2]. These models have a promising ability to describe cellular phenotypes accurately and to relate the annotated genome sequence to the physiological functions of a cell [3,4]. Gluconacetobacter has been extensively characterized and is a model system for cellulose b...

The mechanisms protecting nitrogenase in Gluconacetobacter diazotrophicus from damage by oxygen were studied. Evidence is provided suggesting that in G. diazotrophicus these mechanisms include respiratory protection as well as conformational protection in which a putative FeSII Shethna protein is involved.

A novel cellulose-producing organism was isolated from the liquid part of a 3-year ripened persimmon vinegar, which belonged to the family of Acetobacteracea based on its morphological and physiological characteristics. The phylogenetic position of the isolated strain was most closely related to Gluconacetobacter intermedius TF2 T (99.929%), hence, it was specifically named as Gluconacetobacter...

This study reports the release of the complete nucleotide sequence of Gluconacetobacter hansenii strain NQ5 (ATCC 53582). This strain was isolated by R. Malcolm Brown, Jr. in a sugar mill in North Queensland, Australia, and is an efficient producer of bacterial cellulose. The elucidation of the genome will contribute to the study of the molecular mechanisms necessary for cellulose biosynthesis.

The aim of this work was to analyze the microbiota involved in the traditional vinegar elaboration of strawberry fruit during a spontaneous and inoculated process. In the spontaneous processes, low biodiversity was detected in both alcoholic fermentation (AF) and acetification. Nevertheless, a strain of Saccharomyces cerevisiae and of Acetobacter malorum were selected and tested as starter cult...

Corresponding author – Adres do korespondencji: Dr hab. inż. Stanisław Błażejak, Department of Food Biotechnology and Microbiology of Warsaw University of Life Sciences, Nowoursynowska 159 C (build. 32), 02-787 Warsaw, Poland, e-mail: [email protected] APPLICATION OF IMMOBILIZED CELL PREPARATION OBTAINED FROM BIOMASS OF GLUCONACETOBACTER XYLINUS BACTERIA IN BIOTRANSFORMATION OF GLYCERO...

The acs operon of Gluconacetobacter is thought to encode AcsA, AcsB, AcsC, and AcsD proteins that constitute the cellulose synthase complex, required for the synthesis and secretion of crystalline cellulose microfibrils. A few other genes have been shown to be involved in this process, but their precise role is unclear. We report here the use of Tn5 transposon insertion mutagenesis to identify ...