Marivibrio halodurans gen. nov., sp. nov., a marine bacterium in the family Rhodospirillaceae isolated from underground rock salt.

Gram-negative, spiral or curved rod-shaped cells of a bacterial strain, designated ZC80, were isolated from a rock salt sample collected at Yunnan salt mine, China. Analysis of the strain's 16S rRNA gene sequence revealed a clear affiliation of this novel strain within the family Rhodospirillaceae. Strain ZC80 formed a robust cluster with Pelagibius litoralis CL-UU02 at a 16S rRNA gene sequence similarity level of 88.

Halorubrum salsamenti sp. nov., a Novel Halophilic Archaeon Isolated from a Brine of Salt Mine.

A non-motile, spherical or oval extremely halophilic archaeon, strain Y69, was isolated from a brine of the Yunnan salt mine, China. Colonies on JCM 168 agar plate were round (1-2 mm in diameter), moist, and orange-pigmented. Phylogenetic analysis of the almost-complete 16S rRNA gene sequence showed that the isolate belonged to the species of the genus Halorubrum, with a close relationship to Halorubrum aidingense 31-hong (98.

Halobaculum roseum sp. nov., isolated from underground salt deposits.

Two extremely halophilic archaea, strains D90T and D93, were isolated from underground salt deposits of Yunnan salt mine, China. Both strains were pleomorphic or short rods, non-motile, Gram-negative and required 1.7 M NaCl for growth, with optimum at 3.

Halorubrum trueperi sp. nov., a halophilic archaeon isolated from a salt mine.

A novel, extremely halophilic archaeon, strain Y73T, was isolated from a salt mine in Yunnan, China. Colonies formed on solid medium were circular (2-3 mm in diameter), smooth, orange, glistening and convex (~1 mm in elevation). Cells were Gram-stain-negative, non-motile and pleomorphic.

[Effects of methamidophos and 17beta-estradiol on the dynamics of experimental population of freshwater rotifer Brachionus calyciflorus].

The study on the dynamics of experimental population of freshwater rotifer Brachionus calyciflorus under exposure of different concentrations of methamidophos (0.01, 0.1, 1.