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Updated: Mar 28, 2026

A Workflow for the Quantitative Assessment of the Endophytic and Epiphytic Bacterial Microbiomes of the Bark of Populus trichocarpa
Published on: June 27, 2025
Paenibacillus cathormii sp. nov., isolated from tree bark
Jaruwan Sitdhipol1, Jayoung Paek2, Yeseul Sin2
1Bioscience Department, Thailand Institute of Scientific and Technological Research (TISTR), Pathum Thani 12120, Thailand.
Abstract:
A Gram-stain-positive, facultatively anaerobic, rod-shaped and endospore-forming bacterium, strain BK114-2T isolated from tree bark in Thailand was characterized taxonomically using a polyphasic approach. Analysis based on comparison of 16S rRNA gene sequences indicated that strain BK114-2T was affiliated to the genus Paenibacillus, and was closely related to Paenibacillus timonensis 2301032T (96.7 % 16S rRNA gene sequence similarity), Paenibacillus phoenicis 3PO2SAT (96.6 %) and Paenibacillus barengoltzii SAFN-016T (96.4 %). Strain BK114-2T contained meso-diaminopimelic acid in its cell-wall peptidoglycan. The polar lipids were composed of diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, two unknown phospholipids, five unknown aminophospholipids and six unknown lipids. The only menaquinone detected was MK-7 and the dominant cellular fatty acids were C16 : 0 (22.9 %), anteiso-C15 : 0 (22.6 %), iso-C16 : 0 (19.4 %) and anteiso-C17 : 0 (14.7 %). The DNA G+C content was 52.0 mol%. Based on these results, strain BK114-2T repreesents a novel species of the genus Paenibacillus, for which the name Paenibacillus cathormii sp. nov. is proposed. The type strain is BK114-2T ( = KCTC 33251T = TISTR 2282T).
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