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Updated: Aug 26, 2025

Soil Sampling and Isolation of Entomopathogenic Nematodes Steinernematidae, Heterorhabditidae
Published on: July 11, 2014
Dongia deserti sp. nov., Isolated from the Gurbantunggut Desert Soil
Chun-Yan Lu1, Lei Dong1, Dong Wang2
1State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China.
Abstract:
A Gram-stain-negative, aerobic, short rod-shaped strain, designated as SYSU D60009T, was isolated from a dry sandy soil sample collected from the Gurbantunggut Desert in Xinjiang, northwest China. Strain SYSU D60009T was observed to grow at 15-42 °C (optimum at 37 °C), pH 4.0-10.0 (optimum at 7.0), and with 0-0.5% (w/v) NaCl (optimum, 0%). The strain grew well on R2A agar, and colonies were smooth, white-pigmented, and circular with low convexity. The polar lipids consisted of phosphatidylethanolamine, aminolipid, aminophospholipid, and unknown lipids. The major cellular fatty acid (> 10%) was C16:0 and the predominant respiratory quinone was Q-10. Whole genome sequencing of strain SYSU D60009T revealed 6,132,710 bp with a DNA G + C content of 63.6%. The ANI and dDDH values of strains SYSU D60009T to Dongia mobilis CGMCC 1.7660 T were 72.8% and 19.0%, respectively. Based on the phenotypic, phylogenetic, and chemotaxonomic properties, strain SYSU D60009T represents a novel species of the genus Dongia, for which the name Dongia deserti sp. nov. is proposed, the type strain is SYSU D60009T (= CGMCC 1.16441 T = KCTC 52790 T).
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