Root nodule isolates from a shrubby legume, Lotononis bainesii, were characterized by 16S rRNA gene sequencing and morphologically by substrate utilization patterns. The symbiotic genome of these isolates was analysed by partial sequencing of the nifH gene. Based on the results of numerical taxonomy, the isolates formed a closely related cluster, showing no correspondence to any of the known rh...

Diversity of bacteria producing pigmented colonies in aerosol, snow and soil samples from remote glacial areas (Antarctica, Alps and Andes) E. González-Toril, R. Amils, R. J. Delmas, J.-R. Petit, J. Komárek, and J. Elster Centro de Astrobiologı́a (INTA-CSIC) Ctra. Ajalvir Km. 5, 28850 Torrejón de Ardoz, Spain Institute of Botany, Academy of Sciences of the Czech Republic, Trebon and Faculty of S...

In recent years, the exploitation of bacteria for production carotenoids has become great interest as a sustainable alternative to chemical synthesis, which is expensive and technically challenging. This study contributes repertoire carotenogenic by reporting isolation an orange-pigmented bacterium from gut adult olive flies. The novel isolate, designated M3d10, shared 100% identity with Brevun...

Phenetic data on over 60 heterotrophic, Gram-negative, yellow chromogenic bacteria from plant material were collected and analysed using numerical taxonomic methods. Marker strains representing 42 taxa were included in the analyses. At similarity levels of 80% or above, eight distinct clusters were obtained, the first four of which included yellow chromogens. Custer I contained isolates from gr...

Objectives/Goals I really enjoyed my project this year. In my project, I tested how temperature affected the pigmentation of four different bacteria. From my research, I knew that the bacterium Serratia marcescens alters its color at different temperatures, and I wanted to explore this. I also wanted to see if this applied to other pigmented bacteria. Methods/Materials My project consisted of q...

Two aerobic, pink-pigmented, facultatively methylotrophic bacteria, strains F20T and RXM(T), are described taxonomically. On the basis of their phenotypic and genotypic properties, the isolates are proposed as novel species of the genus Methylobacterium, Methylobacterium suomiense sp. nov. (type strain F20T = VKM B-2238T = NCIMB 13778T) and Methylobacterium lusitanum sp. nov. (type strain RXMT ...

Five cases of peritonitis occurred during continuous ambulatory peritoneal dialysis in which unusual yellow pigmented Gram negative bacteria were isolated in pure culture. Four of these isolates were identified as the so called "Agrobacterium yellow group." The remaining isolate was identified as Pseudomonas paucimobilis, an organism closely related to the Agrobacterium yellow group.

Roseomonas is a newly described genus of pink-pigmented, nonfermentative, gram-negative bacteria that have been recognized as a cause of human infections. Roseomonas fauriae is a species rarely isolated from clinical specimens. We report the first known case of peritonitis caused by R. fauriae in a patient receiving continuous ambulatory peritoneal dialysis.

A filter paper replication system particularly useful for isolation of radiation-sensitive mutants of pigmented bacteria was devised. The fidelity of replication was high. Adhesion between a paper disk and a properly dried master plate provided adequate contact pressure. The replicas arising from this technique constitute a convenient apparatus for general application in isolation of clones sen...