Trujillonella humicola sp. nov., a siderophore-synthesizing bacterium isolated from black soil in Northeast China.

A Gram-stain-positive, motile, and oval-shaped bacterium, designated as SYSU BS000539, was isolated from black soil in Heilongjiang Province, China. 16S rRNA gene sequencing revealed that the isolate shared the highest similarity to Trujillonella endophytica DSM 45413 (98.32%), and phylogenetic analysis confirmed that it belonged to the genus Trujillonella.

Parafrigoribacterium soli sp. nov. and Parafrigoribacterium humi sp. nov., two novel siderophore-synthesizing species isolated from black soil.

Two siderophore-synthesizing species SYSU BS000078 and SYSU BS000231 were isolated from the black soil collected from fields located in Heilongjiang province, China. The results of phylogenetic analysis based on the 16S rRNA gene sequences indicated that these two strains showed the highest sequence similarity to Parafrigoribacterium mesophilum KCTC 19311 (98.61 % and 98.

Methylobacterium nigriterrae sp. nov., isolated from black soil.

An aerobic, Gram-stain-negative, motile rod bacterium, designated as SYSU BS000021, was isolated from a black soil sample in Harbin, Heilongjiang province, China. Phylogenetic analysis based on 16S rRNA gene sequences indicated that the isolate belongs to the genus Methylobacterium, and showed the highest sequence similarity to Methylobacterium segetis KCTC 62267 (98.51%) and Methylobacterium oxalidis DSM 24028 (97.

Ferviditalea candida gen. nov., sp. nov., a novel member of the family Paenibacillaceae isolated from a geothermal area.

Objective: The family Paenibacillaceae is linked to the order Caryophanales. Paenibacillaceae members residing in compost or soil play crucial roles in nutrient recycling and breaking down complex organic materials. However, our understanding of Paenibacillaceae remains limited.