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Updated: May 17, 2026

Fluorescence-Activated Cell Sorting for the Isolation of Scleractinian Cell Populations
Published on: May 31, 2020
Parvularcula dongshanensis sp. nov., isolated from soft coral
Zhiwei Yu1, Qiliang Lai1, Guizhen Li1
1Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, State Oceanic Administration, PR China.
Abstract:
A taxonomic study was carried out on strain SH25(T), which was isolated from soft coral collected from Dongshan Island, China. The isolate was a heterotrophic organism to the soft coral, and was a Gram-reaction-negative, short rod that was motile by a polar flagellum. Growth was observed at salinities from 0 to 12% and at temperatures from 10 to 41 °C. It was unable to reduce nitrate to nitrite. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain SH25(T) belonged to the genus Parvularcula, with highest sequence similarity to Parvularcula lutaonensis CC-MMS-1(T) (96.1%) and Parvularcula bermudensis HTCC2503(T) (94.3%); 16S rRNA gene sequence similarities to other taxa were below 90.0%. The dominant fatty acids were C16:0 and summed feature 8 (C18:1ω7c/ω6c,). The G+C content of the chromosomal DNA was 61.8 mol%. The major quinone was Q10. These combined genotypic and phenotypic data show that strain SH25(T) represents a novel species of the genus Parvularcula, for which the name Parvularcula dongshanensis sp. nov. is proposed. The type strain is SH25(T) (=CCTCC AB 2010355(T)=LMG 26158(T)=MCCC 1A06534(T)).
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