Mucilaginibacter ginsengisoli sp. nov., isolated from a ginseng-cultivated soil

Abstract

A dark-pink-coloured bacterial strain, B4Y-8 T , was isolated from a soil cultivated with ginseng. The 16S rRNA gene sequence of this strain showed highest similarity with Mucilaginibacter litoreus BR-18 T (96.8 %), Mucilaginibacter lutimaris BR-3 T (96.6 %) and Mucilaginibacter defluvii A5 T (96.2 %) among the type strains of species of the genus Mucilaginibacter. Strain B4Y-8 T was a strictly aerobic, Gram-stain-negative, non-motile, short-rod-shaped bacterium producing a large amount of extracellular polymeric substance. The strain grew at 10-35 8C (optimum, 25 8C), at pH 3.0-11.0 (optimum, pH 7.0) and in the presence of 0-1 % (w/v) NaCl (optimum, 0 %). The DNA G+C content of strain B4Y-8 T was 49.0 mol%. It contained menaquinone 7 (MK-7) as the major isoprenoid quinone, and summed feature 3 (C 16 : 1 v6c and/or C 16 : 1 v7c) and iso-C 15 : 0 as the major fatty acids. On the basis of evidence from the present polyphasic taxonomic study, strain B4Y-8 T should be classified as representing a novel species of the genus Mucilaginibacter, for which the name Mucilaginibacter ginsengisoli sp. nov. is proposed. The type strain is B4Y-8 T (5KACC 18152 T 5JCM 30759 T ).

Identification of Mucilaginibacter conchicola sp. nov., Mucilaginibacter achroorhodeus sp. nov. and Mucilaginibacter pallidiroseus sp. nov. and emended description of the genus Mucilaginibacter

“… *Data for isolation source, cell size, temperature, pH range and NaCl tolerance for growth of M. carri PR0008K T [58], M. litoreus BR-18 T [59], M. lutimaris BR-3 T [60], M. ginsengisoli B4Y-8 T [61] and M. amnicola TAPP7 T [62] were from previous research. …”

Tình Hình Nghiên Cứu Phát Hiện Các Loài Vi Khuẩn Mới Trong Đất Trồng Nhân Sâm (Panax L.) Trên Thế Giới

“…Ngành (số loài) Tài liệu tham khảo 1 Proteobacteria (48) Park et al, 2005;Yang et al, 2005;Kim et al, 2006a;Kim et al, 2006b;Lee et al, 2006;Kim et al, 2007a;Weon et al, 2007;Yoo et al, 2007a;Yoo et al, 2007b;Yoon et al, 2007a;Jung et al, 2008;Lee et al, 2008a;Lee et al, 2008b;Weon et al, 2008;Jung et al, 2009;Kim et al, 2009a;Ten et al, 2009a;Ten et al, 2009b;Bui et al, 2010;Im et al, 2010a;Im et al, 2010b;Kim et al, 2010a;Liu et al, 2010;Srinivasan et al, 2010a;Srinivasan et al, 2010b;Srinivasan et al, 2010c;Yi et al, 2010;Jung et al, 2011;Kim et al, 2011a;Wang et al, 2011a;Wang et al, 2012;Kim et al, 2013a;Ahn et al, 2015a;Cheng et al, 2015;Farh Mel et al, 2015;Nguyen et al, 2015a;Nguyen et al, 2015b;Singh et al, 2015a;Siddiqi & Im, 2016a;Zhang et al, 2016;Zhao et al, 2016;Siddiqi & Im, 2016b.…”