<i>Paenibacillus hubeiensis</i> sp. nov.: A Novel Selenium-Resistant Bacterium Isolated from the Rhizosphere of <i>Galinsoga parviflora</i> in a Selenium-Rich Region of Enshi, Hubei Province.

ABSTRACT: ES5-4^T, a Gram-positive, motile, aerobic, and rod-shaped strain, was isolated from the rhizosphere of Galinsoga parviflora growing in the selenium-rich ore area of Enshi, Hubei Province, China. This strain can grow at pH levels of 5.0-10.0 and temperatures of 4-42 °C, with optimal growth at pH 7.0 and 28 °C. It was found to resist NaCl up to 5% (w/v), with an optimal growth condition of 0.5-1.0%. The strain exhibited tolerance to selenite (Se⁴⁺) concentrations up to 5000 mg/L. The major fatty acids of the ES5-4^T strain were anteiso-C_15:0 (46.5%) and C_16:0 (21.7%), its predominant respiratory quinone was MK-7, and its polar lipids included diphosphatidylglycerol (DPG), phosphatidylethanolamine (PE), phosphatidylglyc

SUBMITTER: Kong J 

PROVIDER: S-EPMC12300063 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature