Isoptericola croceus sp. nov., a novel actinobacterium isolated from saline-alkali soil.

A novel actinomycete, designated strain q2, was isolated from the saline-alkaline soil, collected from Daqing, Heilongjiang province, China. The results of phylogenetic analysis based on the 16S rRNA gene sequences indicated that strain q2 belongs to the genus Isoptericola, and showed the highest sequence similarity to Isoptericola halotolerans KCTC 19046 (98.48%) and Isoptericola chiayiensis KCTC 19740 (98.

Oceanobacillus saliphilus sp. nov., Isolated from Saline-Alkali Soil in Heilongjiang Province, China.

A novel bacterium, designated strain APA_H-1(4), was isolated from the saline-alkaline soil, Zhaodong, Heilongjiang Province, China. Phenotypic and chemotaxonomic analyses, and whole-genome sequencing were used to determine the taxonomic position of the strain. Phylogenetic analysis indicated that the isolate belongs to the genus Oceanobacillus, and showed the highest sequence similarity to O.

Symbiotic bacteria associated with puffer fish and evaluation of their antimicrobial activities.

The present study reports the diversity of culturable bacteria associated with the puffer fish . During the study, a total of 31 strains affiliated to the genera , , and were isolated from liver, intestines, and flesh of . These strains exhibited a diverse range of metabolites as indicated by the HPLC and TLC profiles of the chemical extracts of their fermentation products.

Kocuria subflava sp. nov., isolated from marine sediment from the Indian Ocean.

A novel Gram-staining positive, catalase-positive, oxidase-negative, aerobic, non-motile coccus, designated strain YIM 13062(T), was isolated from a marine sediment sample collected from the Indian Ocean. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain YIM 13062(T) belongs to the genus Kocuria, and is closely related to Kocuria polaris NBRC 103063(T) (97.8 % similarity), Kocuria rosea NBRC 3768(T) (97.

[Biosorption of Cd(II), Cu(II), Pb(II) and Zn(II) in aqueous solutions by fruiting bodies of macrofungi (Auricularia polytricha and Tremella fuciformis)].

Batch experiments were conducted to study the ability of fruiting bodies of Auricularia polytricha and Tremella fuciformis to adsorb Cd(II), Cu(II), Pb(II) and Zn(II) from aqueous solutions, including biosorption ability of the biomass to remove heavy metals from solutions with different concentrations, kinetics of adsorption, influence of co-cations, and biosorption affinity in multi-metalsystem. Results showed that in the solutions with individual metal, the maximum biosorption amounts of Cd(II), Cu(II), Pb(II), Zn(II) by A. polytricha were 18.

[Isolation and characterization of electrochemical active bacterial Pseudomonas aeruginosa strain RE7].

Microbial components of the microbial fuel cells (MFCs), including species constitution and metabolic mechanism of the anodic microorganisms, are critical to the optimization of electricity generation. An electrogenesis baterium strain (designated as RE7) was isolated from an MFC that had been running in a fed batch mode for over one year. The isolate was identified as a strain of Pseudomonas aeruginosa based on its physiological, morphological characteristics and 16S rRNA sequence analysis.

Inhibition of Vibrio biofilm formation by a marine actinomycete strain A66.

China remains by far the largest aquaculture producer in the world. However, biofilms formed by pathogenic Vibrio strains pose serious problems to marine aquaculture. To provide a strategy for biofilm prevention, control, and eradication, extracts from 88 marine actinomycetes were screened.