AI Article Synopsis
- A new bacterial strain called REN37 was isolated from Sichuan's Baijiu fermented grains and is identified as a Gram-negative, non-motile, rod-shaped organism belonging to the genus Isoalcanivorax.
- The strain thrives best at temperatures of 32-37°C, a pH of 6.0-7.0, and with 1-2% NaCl, and shows significant genetic differences from its closest relative, Isoalcanivorax pacificus, suggesting it is a novel species.
- The strain contains specific fatty acids and lipid types, and features genes that indicate its potential for efficient oil degradation; it has been named Isoalcanivorax beigongshangi sp. nov
Article Abstract
A bacterial strain, REN37, was isolated from fermented grains of Baijiu samples collected from Sichuan, PR China. The cells of strain REN37 was Gram-negative and aerobic. The cellular morphology exhibited rod-shaped cells without flagellum, displaying non-motility. The optimal growth condition was at 32-37 °C, pH 6.0-7.0, and with a NaCl concentration of 1-2% (w/v). Based on the analysis of 16S rRNA gene sequence, strain REN37 was identified to belong to the genus of Isoalcanivorax. Its closest species was Isoalcanivorax pacificus W11-5 (96.1%). The polar lipids were identified to be diphosphatidylglycerol, phosphatidylglycerol, phosphatidylcholine, unidentified glycolipid, two unidentified phospholipids. The predominant menaquinone was MK-12. The predominant fatty acids were C anteiso (49.4%), C iso (18.1%), C anteiso (16.5%) and C iso (9.5%). The digital DNA-DNA hybridization (dDDH), average nucleotide identity (OrthoANI) and average amino acid identify (AAI) values between strain REN37 and its most similar species were 19.2%, 74.0% and 78.0%, respectively. The DNA G + C content of the strain REN37 was 63.0 mol%. Three alkane 1-monooxygenase (alkB1) genes (1152 bp, 1149 bp, 1179 bp) were identified in the genome, indicating that strain REN37 may be associated with efficient oil-degradation capabilities. Based on the results, REN37 represents a novel specie, and the name Isoalcanivorax beigongshangi sp. nov. was proposed. The type strain is REN37 (= GDMCC 1.3120 = JCM 35319).
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| http://dx.doi.org/10.1007/s10482-024-02043-y | DOI Listing |
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Isoalcanivorax beigongshangi sp. nov., isolated from the fermented grains of Chinese baijiu.
Antonie Van Leeuwenhoek
November 2024
Key Laboratory of Brewing Molecular Engineering of China Light Industry, Beijing Technology and Business University, Beijing, China.
Article Synopsis
- A new bacterial strain called REN37 was isolated from Sichuan's Baijiu fermented grains and is identified as a Gram-negative, non-motile, rod-shaped organism belonging to the genus Isoalcanivorax.
- The strain thrives best at temperatures of 32-37°C, a pH of 6.0-7.0, and with 1-2% NaCl, and shows significant genetic differences from its closest relative, Isoalcanivorax pacificus, suggesting it is a novel species.
- The strain contains specific fatty acids and lipid types, and features genes that indicate its potential for efficient oil degradation; it has been named Isoalcanivorax beigongshangi sp. nov
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