Draft Genome Sequence of Haloalkaliphilic Exiguobacterium sp. Strain AB2 from Manleluag Ophiolitic Spring, Philippines

Abstract

Exiguobacterium sp. AB2 is a haloalkaliphilic bacterium isolated from a hyperalkaline spring in Manleluag, Pangasinan, Philippines. Sequencing of bacterial DNA assembled a 2.85 MB draft genome. Analysis suggests the presence of genes for tolerance to stresses such as elevated pH and salt concentrations and toxic metals.

Out of the dark: transitional subsurface-to-surface microbial diversity in a terrestrial serpentinizing seep (Manleluag, Pangasinan, the Philippines)

“…Exiguobacterium sp. AB2, a haloalkaliphilic strain of Exiguobacterium , was recently isolated from samples also collected in the Manleluag seep (Cabria et al, 2014 ). Other rare taxa include Sporosarcina , some of which are capable of microbially induced calcite precipitation and cementation via hydrolysis of urea (Yoon et al, 2001 ); Alkaliphilus , an extreme alkaliphile isolated from an ultra-deep gold mine in South Africa (Takai et al, 2001 ); Dethiobacter , an alkaliphile that grows chemolithoautotrophically using H 2 as an electron donor and thiosulfate, elemental sulfur, and polysulfide as electron acceptors (Sorokin et al, 2008 ); Desulfonatronum , an alkaliphilic, sulfate reducing bacterium (Pikuta et al, 2003 ); Mycobacterium , a ubiquitous, alkaline-tolerant genus (Bland et al, 2005 ); Roseococcus , an obligately aerobic, facultative alkaliphilic photoheterotroph (Boldareva et al, 2009 ); Roseomonas , representatives of which exhibit alkalitolerance and thermotolerance (Dong et al, 2014 ); Ramlibacter , a deeply branching clade isolated from weathered pyroxene, chromite and secondary calcite crystals of a meteorite collected in 1931 in Tunisia (Heulin et al, 2003 ); and Deinococcus , a bacterial genus known for its resistance to dessication, UV and ionizing radiation (Makarova et al, 2001 ).…”

Draft Genome Sequence of Thermophilic Exiguobacterium sp. Strain JLM-2, Isolated from Deep-Sea Ferromanganese Nodules

“…Exiguobacterium spp. have been isolated from, or molecularly detected in, many extreme environments, such as Antarctic ice ( 3 ), Himalayan glaciers ( 4 ), Siberian permafrost ( 5 ), deep-sea hydrothermal vents ( 6 ), and hot/hyperalkaline springs ( 7 , 8 ).…”

Draft Genome Sequence of Exiguobacterium sp. Strain BMC-KP, an Environmental Isolate from Bryn Mawr, Pennsylvania

“…The genus was first described by Collins et al ( 1 ) in order to provide a new classification for a Gram-positive, non-spore forming, facultative anaerobic, alkaliphilic bacteria within the Firmicutes . Exiguobacterium species have been isolated from diverse environments, including permafrost ( 2 , 3 ), soil ( 4 ), freshwater microbialites ( 5 ), a hyperalkaline spring ( 6 ), hot springs ( 7 ), plant rhizospheres ( 8 ), and glaciers in the Himalayas ( 9 ). Exiguobacterium spp.…”