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    論文題目  Talaromyces sedimenticola sp. nov., isolated from the Mariana Trench 
    論文題目(英文) Talaromyces sedimenticola sp. nov., isolated from the Mariana Trench 
    作者 Zhou, Hongbo(1,2);Xu, Liting(1);Liu, Wenxian(1);Ta, Kaiwen(3);Wang, Xincun(4);Guo, Jianwei(5);Luo, Wenxi(1);Peng, Zhiyuan(1);Huang, Qiaoni(1);Wang, Yuguang(1,2) 
    發(fā)表年度 2024 
    117 
    1 
    頁(yè)碼 9 
    期刊名稱(chēng) ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY 
    摘要  
    摘要_英文

    Two fungal strains (K-2(T) and S1) were isolated from the deepest ocean sediment of the Challenger Deep located in the Mariana Trench. The internal transcribed spacer (ITS) gene sequences of the isolates K-2(T) and S1 differed from those of closely related species, such as Talaromyces assiutensis and T. trachyspermus. Phylogenetic analyses based on single and concatenated alignments of the genes, namely ITS, beta-tubulin (benA), calmodulin (cam), and the second-largest subunit fragment of the RNA polymerase II (rpb2) showed that the isolates K-2(T) and S1 were clustered together with other Talaromyces species, such as T. trachyspermus and T. assiutensis, as evidenced by the position on a terminal branch with high bootstrap support. They could also be distinguished from their closest relatives with valid published names via morphological and physiological characteristics, for example, growth at 4 C-degrees-50 C-degrees with a pH in the range of 1.5-12. Based on their phylogenetic, morphological, and physicochemical properties, the isolates K-2(T) and S1 represent a novel species in the genus Talaromyces, and the proposed name is Talaromyces sedimenticola sp. nov. The type strain is K-2(T) (= GDMCC 3.746(T) = JCM 39451(T)).