Characterization of Lipopolysaccharides Isolated from Agrobacterium tumefaciens
نویسندگان
چکیده
منابع مشابه
Characterization of Agrobacterium Tumefaciens Strains Isolated from Root Nodules of Vigna Trilobata (l) Verdc. Cultivars
Root nodulating bacteria was isolated from root nodules of Vigna trilobata (L) Verdc. Plants raised in the soils were collected from five geographically different areas in Andhra Pradesh, India. The bacteria was identified as Agrobacterium tumefaciens strains by 16S rDNA analysis. Except A. tumefaciens MRR 102, all the strains produced round shape and white coloured colonies with lot of mucilag...
متن کاملCharacterization of Agrobacterium tumefaciens strains isolated from grapevine tumors in China.
Thirteen strains of Agrobacterium tumefaciens isolated from grapevine tumors in northern China were surveyed. These strains varied in their host range properties, although all were tumorigenic on grapevines. Twelve of these strains belonged to Agrobacterium sp. biotype 3, and 11 strains resulted in the synthesis of the opine octopine in tumor tissue. Interestingly, one strain resulted in accumu...
متن کاملCharacterization of the mmsAB-araD1 (gguABC) genes of Agrobacterium tumefaciens.
The chvE-gguABC operon plays a critical role in both virulence and sugar utilization through the activities of the periplasmic ChvE protein, which binds to a variety of sugars. The roles of the GguA, GguB, and GguC are not known. While GguA and GguB are homologous to bacterial ABC transporters, earlier genetic analysis indicated that they were not necessary for utilization of sugars as the sole...
متن کاملBiochemical characterization of avirulent exoC mutants of Agrobacterium tumefaciens.
The synthesis of periplasmic beta(1-2)glucan is required for crown gall tumor formation by Agrobacterium tumefaciens and for effective nodulation of alfalfa by Rhizobium meliloti. The exoC (pscA) gene is required for this synthesis by both bacteria as well as for the synthesis of capsular polysaccharide and normal lipopolysaccharide. We tested the possibility that the pleiotropic ExoC phenotype...
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ژورنال
عنوان ژورنال: Journal of General Microbiology
سال: 1978
ISSN: 0022-1287
DOI: 10.1099/00221287-105-1-119