Diversity of 746 Heterotrophic Bacteria Isolated from Microbial Mats from Ten Antarctic Lakes

Microbiology of Eutrophic (Ornithogenic and Hydrocarbon-Contaminated) Soil

“…The absence of hydrological features (ponds and lakes) in the Beacon Valley compared to Miers Valley was considered an important factor in explaining the differences in cyanobacterial compositions between the two valleys (Wood et al 2008). Heterotrophic bacteria in microbial mats, which include representatives of the phyla Actinobacteria, Proteobacteria, Bacteroidetes, Firmicutes, and Deinococcus-Thermus (Brambilla et al 2001;Van Trappen et al 2002;Rojas et al 2009;Peeters et al 2011), may be similarly redistributed by aeolian processes in Antarctic ecosystems. Indeed, proximity to hydrological features was found to be more important than soil moisture for describing variation in both bacterial and cyanobacterial community structures in Miers Valley soils (Niederberger et al 2012).…”

Gillisia limnaea gen. nov., sp. nov., a new member of the family Flavobacteriaceae isolated from a microbial mat in Lake Fryxell, Antarctica

“…Numerical analysis of their fatty acid composition revealed 41 clusters and 16S rRNA gene sequence analysis, performed on representative strains, showed that these isolates belong to the a-, b-and c-Proteobacteria, the high-and low-G+C-containing Gram-positives and the phylum Bacteroidetes (Van Trappen et al, 2002).…”

“…In the present work, the taxonomic relationship between the three strains from fatty acid cluster 4 (as delineated by Van Trappen et al, 2002) was studied by a polyphasic taxonomic approach. A novel genus of the family Flavobacteriaceae is described, Gillisia gen. nov., with Gillisia limnaea sp.…”

“…During the MICROMAT project (November 1998-February 2001, 746 bacterial strains were isolated under heterotrophic conditions from microbial mat samples collected from 10 Antarctic lakes in the Vestfold Hills (Lakes Ace, Druzhby, Grace, Highway, Pendant, Organic and Watts), the Larsemann Hills (Lake Reid) and the McMurdo Dry Valleys (Lakes Hoare and Fryxell) (Van Trappen et al, 2002). Numerical analysis of their fatty acid composition revealed 41 clusters and 16S rRNA gene sequence analysis, performed on representative strains, showed that these isolates belong to the a-, b-and c-Proteobacteria, the high-and low-G+C-containing Gram-positives and the phylum Bacteroidetes (Van Trappen et al, 2002).…”

Lacimicrobium alkaliphilum gen. nov., sp. nov., a member of the family Alteromonadaceae isolated from a salt lake

“…Furthermore, strain X13M-12 T could be distinguished from the type strains of the type species of the genera Aestuariibacter, Salinimonas, Agaribacter, Aliiglaciecola, Glaciecola, Paraglaciecola and Alteromonas by the presence of C 17 : 0 cyclo and C 19 : 0 10-methyl, and due to the lack of C 15 : 0 . (Teramoto & Nishijima, 2014); 6, Aliiglaciecola (Chen et al, 2009a;Jean et al, 2013;Jin et al, 2015;Tanaka et al, 2010); 7, Glaciecola (Baik et al, 2006;Bowman et al, 1998); 8, 'Pseudobowmanella' (Du et al, 2015); 9, Paraglaciecola (Matsuyama et al, 2006;Park & Yoon, 2013;Romanenko et al, 2003;Shivaji & Reddy, 2014;Van Trappen et al, 2004a;Yong et al, 2007;Zhang et al, 2006;Zhang et al, 2011); 10, Alteromonas (Baumann et al, 1972;Chen et al, 2009b;Chiu et al, 2007;Ivanova et al, 2005;Ivanova et al, 2013;Ivanova et al, 2015;Martínez-Checa et al, 2005;Matsuyama et al, 2015;Van Trappen et al, 2004b;Vandecandelaere et al, 2008;Yi et al, 2004;Yoon et al, 2003;Yoon et al, 2004) Oxygen requirements…”