Massilia Yuzhufengensis Sp. Nov., Isolated from an Ice Core
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International Journal of Systematic and Evolutionary Microbiology (2013), 63, 1285–1290 DOI 10.1099/ijs.0.042101-0 Massilia yuzhufengensis sp. nov., isolated from an ice core Liang Shen,1 Yongqin Liu,1 Ninglian Wang,2 Tandong Yao,1 Nianzhi Jiao,3 Hongcan Liu,4 Yuguang Zhou,4 Baiqing Xu1 and Xiaobo Liu1 Correspondence 1Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100085, PR China Yongqin Liu 2Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of [email protected] Sciences, Lanzhou 730000, PR China 3State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, PR China 4Institute of Microbiology, China General Microbiological Culture Collection Center, Chinese Academy of Sciences, Beijing 100101, PR China A Gram-negative, rod-shaped, aerobic, motile bacterium, strain Y1243-1T, was isolated from an ice core drilled from Yuzhufeng Glacier, Tibetan Plateau, China. Cells had polar flagella. The novel strain shared 94.7–97.6 % 16S rRNA gene sequence similarity with the type strains of species of the genus Massilia. The novel isolate is thus classified in the genus Massilia. The major fatty acids T of strain Y1243-1 were summed feature 3 (C16 : 1v7c and/or iso-C15 : 0 2-OH) (43.98 %), C16 : 0 (27.86 %), C10 : 0 3-OH (7.10 %), C18 : 0 (6.95 %) and C18 : 1v7c (5.01 %). The predominant T isoprenoid quinone was Q-8. The DNA G+C content of strain Y1243-1 was 65.7 mol% (Tm). The major polar lipids were phosphatidylethanolamine, phosphatidylglycerol and diphosphati- dylglycerol. A number of phenotypic characteristics distinguished the novel isolate from the type strains of recognized Massilia species. Furthermore, in DNA–DNA hybridization tests, strain Y1243-1T shared 45 % relatedness with its closest phylogenetic relative, Massilia consociata CCUG 58010T. From the genotypic and phenotypic data, it is evident that strain Y1243-1T represents a novel species of the genus Massilia, for which the name Massilia yuzhufengensis sp. nov. is proposed. The type strain is Y1243-1T (5KACC 16569T5CGMCC 1.12041T). The genus Massilia was first proposed by La Scola et al. (La Scola et al., 1998; Gallego et al., 2006; Zhang et al., (1998) for an isolate from the blood of an immunocom- 2006; Zul et al., 2008; Weon et al., 2008, 2009, 2010; promised patient with a cerebrellar lesion. Members of the Ka¨mpfer et al., 2011, 2012a; Wang et al., 2012). genus are characterized as aerobic, Gram-negative, motile, Ice core samples were drilled from Yuzhufeng Glacier on non-spore-forming rods, which contain several typical fatty the Qinghai–Tibetan Plateau of China (94u 14.779 E35u acids, such as C ,C 3-OH, iso-C 2-OH and/or 12 : 0 10 : 0 15 : 0 39.649 N). Temperatures on the glacier are extremely low. C v7c,C and C v7c. Q-8 is the predominant 16 : 1 16 : 0 18 : 1 Thawed water from sections of the ice core with depth was isoprenoid quinone. Phosphatidylethanolamine, phospha- used for cultivation. After incubation at 4 uC for 30 days tidylglycerol and diphosphatidylglycerol are the major with R2A agar medium (Reasoner & Geldreich, 1985), polar lipids of these bacteria. The DNA G+C content several bacterial colonies were recovered. ranges from 62.4 to 68.9 mol%. It was recently shown that four species of the genus Naxibacter were grouped together The genomic DNA of these strains was extracted according with the majority of species of the genus Massilia and no to the methods of Marmur (1961) from cells grown on significant differences could be detected when comparing R2A agar for 2 days at 28 uC. Purity was assessed using a the chemotaxonomic makers described for species of the NanoDrop spectrophotometer (2000c; Thermo). The 16S genera Naxibacter and Massilia. Therefore, Ka¨mpfer et al. rRNA gene was amplified with universal primers 27F (59- (2011) transferred all Naxibacter species to the genus AGAGTTTGATCCTGGCTCAG-39) and 1492R (59-CG- Massilia. At the time of writing, a total of 18 Massilia GTTACCTTGTTACGACTT-39) (Embley, 1991). Nearly species with validly published names have been described full-length 16S rRNA gene sequences were compared with those in GenBank using the BLAST program (NCBI) and the The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene EzTaxon server 2.1 (Chun et al., 2007) to determine their sequence of strain Y1243-1T is JQ409016. approximate phylogenetic affiliation. The 16S rRNA gene Downloaded from www.microbiologyresearch.org by 042101 G 2013 IUMS Printed in Great Britain 1285 IP: 137.108.70.7 On: Mon, 04 Jul 2016 05:59:08 L. Shen and others T 66 Y1243-1 (JQ409016) Massilia consociata CCUG 58010 T (FN814307) Massilia niastensis 5516S-1T (EU808005) 95 Massilia aerilata 5516S-11T (EF688526) Massilia oculi CCUG 43427AT (FR773700) Massilia haematophila CCUG 38318T (AM774589) T 52 Massilia varians CCUG 35299 (AM774587) 73 96 Massilia alkalitolerans YIM 31775T (AY679161) Massilia suwonensis 5414S-25T (FJ969487) Massilia timonae UR/MT95T (U54470) Massilia niabensis 5420S-26T (EU808006) AP13T (AM231588) 64 Massilia aurea T 80 Massilia jejuensis 5317J-18 (FJ969486) 99 Massilia brevitalea byr23-80T (EF546777) Massilia flava Y9T (HM777013) T 94 Massilia albidiflava 45 (AY965999) 84 Massilia lutea 101T (AY966001) 63 Massilia dura 16T (AY965998) Massilia plicata 76T (AY966000) Pseudoduganella violaceinigra YIM 31327T (AY376163) T 100 Duganella zoogloeoides IAM 12670 (D14256) Duganella phyllosphaerae T54T (FR852575) T 72 Aquaspirillum arcticum IAM 14963 (AB074523) ‘Actimicrobium antarcticum’ KOPRI 25157T (HQ699437) 75 P6-12T (AF543312) 64 Herbaspirillum lusitanum Oxalicibacterium horti OD1T (AB469786) Herminiimonas saxobsidens NS11T (AM493906) Telluria chitinolytica ACM 3522T (X65590) 100 Telluria mixta ACM 1762T (X65598) 0.005 Fig. 1. Neighbour-joining phylogenetic tree based on 16S rRNA gene sequences showing the position of strain Y1243-1T. Numbers at nodes are bootstrap percentages (based on 1000 replications); only values .50 % are shown. Bar, 0.005 accumulated changes per nucleotide. sequences were then analysed with the software package tree to be different for Telluria species (not shown). Therefore, MEGA 5.05 (Tamura et al., 2011). A phylogenetic tree was further extensive taxonomic studies are required to determine constructed using the neighbour-joining and maximum- whether to transfer members of the genus Telluria to the genus likelihood methods with bootstrap values based on 1000 Massilia. Although the distinct phylogenetic positions and replications (Fig. 1). One bacterial strain recovered from differences in chemotaxonomic markers such as polar lipids 119.6 m of the ice core, designated Y1243-1T, was shown to and fatty acids are usually used to distinguish bacteria at the be phylogenetically related to members of the genus genus level, assigning any novel isolate to Massilia–Duganella– Massilia (97.6–94.7 % 16S rRNA gene sequence similarity) Telluria species needs particular care because of the absence of with the closest relative being Massilia consociata CCUG 58010T. We therefore considered that strain Y1243-1T may represent a novel species of the genus Massilia. It was recently shown that Telluria species fell together with Massilia albidiflava, Massilia dura, Massilia lutea and Massilia plicata,andDuganella violaceinigra was reclassified within a novel genus as Pseudoduganella violaceinigra (Ka¨mpfer et al., 2012b). The phylogenetic tree based on the neighbour-joining method in this study supports the reclassification of D. violaceinigra. Telluria species form the basal group in the tree. Furthermore, we found the topology Fig. 2. Transmission electron micrograph of cells of strain Y1243- of the maximum-likelihood tree and the neighbour-joining 1T after 24 h growth on R2A agar. Bar, 1 mm. Downloaded from www.microbiologyresearch.org by 1286 International Journal of Systematic and Evolutionary Microbiology 63 IP: 137.108.70.7 On: Mon, 04 Jul 2016 05:59:08 http://ijs.sgmjournals.org Table 1. Differential properties between strain Y1243-1T and the type strains of recognized species of the genus Massilia Strains: 1, Y1243-1T;2,M. consociata CCUG 58010T;3,M. niabensis KACC 12632T;4,M. niastensis KACC 12599T;5,M. jejuensis 5317J-18T;6,M. brevitalea DSM 18925T;7,M. suwonensis 5414S- 25T;8,M. varians KACC 13770T;9,M. haematophila CCUG 38318T; 10, M. aurea DSM 18055T; 11, M. aerilata KACC 12505T; 12, M. alkalitolerans KACC 12188T; 13, M. timonae DSM 16850T; 14, M. flava KCTC 23585T; 15, M. albidiflava KCTC 12343T; 16, M. lutea KCTC 12345T; 17, M. plicata KCTC 12344T; 18, M. dura KCTC 12342T; 19, Massilia oculi CCUG 43427AT. Data for taxa 3 and 6 are from Weon et al. (2009); for 9 and 12 from Weon et al. (2010); for 10, 11, 13 and 15–18 from Weon et al. (2008); for 14 from Wang et al. (2012); for 19 from Ka¨mpfer et al. (2012a). Data for taxa 1, 2, 4, 5, 7 and 8 are from this study, except where indicated. +, Positive; (+), weakly positive; 2, negative; ND, not determined. Characteristic 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 a b c d c e e f g h i i i i Catalase/oxidase +/2 ND/2 +/++/+ ND/+ (+)/2 ND/+ ND/+ ND/+ +/(+) +/+ ND/2 +/+ ND/++/+ +/+ +/2 +/+ ND/2 Temperature range 2–35 15–37a 5–35 5–35b 5–35c 4–30d 5–40c 15–37e 15–37e 4–30f 5–35 4–55g 25–35j 10–40 10–45i 10–45i 10–45i 10–45i 15–37 (uC) Isolation source Ice core Blooda Air Airb Airc Soild Airc Eyee Bloode Waterf Air Soilg Bloodj Soil Soili Soili Soili Soili Eye Nitrate reduction 22+ 22+d 22c 22+ 2g 2 ++ 2222 Urease 2 2222222c 22++g 2222222 Hydrolysis of: c g Aesculin ++2 +++2