Publisher Summary The chapter reviews the tremendous potential that the marine
environment holds for the discovery of additional new bioactive agents. Marine bacteria are …

The class Alphaproteobacteria is comprised of a diverse assemblage of Gram-negative
bacteria that includes organisms of varying morphologies, physiologies and habitat …

The genus Agrobacterium was created a century ago by Conn who included it in the family
Rhizobiaceae together with the genus Rhizobium. Initially, the genus Agrobacterium …

Roseobacters are a diverse and globally abundant group of Alphaproteobacteria within the
Rhodobacteraceae family. Recent studies and the cophenetic correlations suggest that the …

Abstract Al. pha. pro. te. o. bac. te′ ri. a. Gr. n. alpha name of first letter of Greek alphabet;
Gr. n. Proteus ocean god able to change shape; Gr. n. bakterion a small rod; ML fem. pl. n …

The phylogenetic relationships of members of the genera Rhizobium, Agrobacterium,
Bradyrhizobium, and Azorhizobium were studied by direct sequencing of their amplified 16S …

Isolates belonging to six genera not previously known to oxidize CO were obtained from
enrichments with aquatic and terrestrial plants. DNA from these and other isolates was used …

Diazotrophic microorganisms regulate marine productivity by alleviating nitrogen limitation.
However, we know little about the identity and activity of diazotrophs in deep-sea sediments …

J. Gen. Appl. Microbiol., 44, 201–210 (1998) Page 1 The genus Agrobacterium has been
reported to include terrestrial and plant-pathogenic species and marine species that form …

The Roseobacter clade is a broadly distributed, abundant, and biogeochemically relevant
group of marine bacteria. Representatives are often associated with organic surfaces in …