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Complete Genome Sequence of Erythrobacter litoralis HTCC2594
Oh, Hyun-Myung,Giovannoni, Stephen J.,Ferriera, Steve,Johnson, Justin,Cho, Jang-Cheon American Society for Microbiology 2009 Journal of Bacteriology Vol.191 No.7
<B>ABSTRACT</B><P><I>Erythrobacter litoralis</I> has been known as a bacteriochlorophyll <I>a</I>-containing, aerobic, anoxygenic, phototrophic bacterium. Here we announce the complete genome sequence of <I>E. litoralis</I> HTCC2594, which is devoid of phototrophic potential. <I>E. litoralis</I> HTCC2594, isolated by dilution-to-extinction culturing from seawater, could not carry out aerobic anoxygenic phototrophy and lacked genes for bacteriochlorophyll <I>a</I> biosynthesis and photosynthetic reaction center proteins.</P>
Cho, Jang-Cheon,Giovannoni, Stephen J Society for General Microbiology 2006 International journal of systematic and evolutiona Vol.56 No.4
<P>A Gram-negative, chemoheterotrophic, facultatively anaerobic, slightly halophilic, oval-shaped marine bacterium, designated HTCC2601T, was isolated from the western Sargasso Sea by high-throughput culturing involving dilution to extinction. Although the 16S rRNA gene sequence similarity between the isolate and Salipiger mucosus was 96.5 %, phylogenetic analyses using different treeing algorithms clearly indicated that the strain forms a distinct lineage within a clade containing the recently classified genera Salipiger and Palleronia in the order Rhodobacterales of the Alphaproteobacteria. The DNA-DNA relatedness between strain HTCC2601T and S. mucosus was 26.3 %. Strain HTCC2601T utilized a wide range of carbohydrates, including hexose monomers, sugar alcohols, organic acids and amino acids, as sole carbon sources. The DNA G+C content of strain HTCC2601T was 65.4 mol%, and the predominant constituents of the cellular fatty acids were 18 : 1omega7c (79.7 %) and 11-methyl 18 : 1omega7c (7.5 %). The strain differed from members of the closely related genera Salipiger and Palleronia in its morphological, biochemical and ecological characteristics. On the basis of the taxonomic data obtained in this study, a novel genus and species, Pelagibaca bermudensis gen. nov., sp. nov., is proposed; HTCC2601T (=KCTC 12554T = JCM 13377T) is the type strain of Pelagibaca bermudensis.</P>
Complete Genome Sequence of Robiginitalea biformata HTCC2501
Oh, Hyun-Myung,Giovannoni, Stephen J.,Lee, Kiyoung,Ferriera, Steve,Johnson, Justin,Cho, Jang-Cheon American Society for Microbiology 2009 Journal of Bacteriology Vol.191 No.22
<B>ABSTRACT</B><P><I>Robiginitalea biformata</I> HTCC2501, isolated from the Sargasso Sea by dilution-to-extinction culturing, has been known as an aerobic chemoheterotroph with carotenoid pigments and dimorphic growth phases. Here, we announce the complete sequence of the <I>R. biformata</I> HTCC2501 genome, which contains genes for carotenoid biosynthesis and several macromolecule-degrading enzymes.</P>
Oh, Hyun-Myung,Kang, Ilnam,Ferriera, Steve,Giovannoni, Stephen J.,Cho, Jang-Cheon American Society for Microbiology 2010 Journal of Bacteriology Vol.192 No.17
<B>ABSTRACT</B><P>Strain HTCC2143 was isolated from Oregon Coast surface waters using dilution-to-extinction culturing. Here we present the genome of strain HTCC2143 from the BD1-7 clade of the oligotrophic marine <I>Gammaproteobacteria</I> group. The genome of HTCC2143 contains genes for carotenoid biosynthesis and proteorhodopsin and for proteins that have potential biotechnological significance: epoxide hydrolases, Baeyer-Villiger monooxygenases, and polyketide synthases.</P>
Modest calcium increase in tomatoes expressing a variant of Arabidopsis cation/$H^+$ antiporter
Chung, Mi-Young,Han, Jeung-Sul,Giovannoni, James,Liu, Yang,Kim, Chang-Kil,Lim, Ki-Byung,Chung, Jae-Dong The Korean Society of Plant Biotechnology 2010 Plant biotechnology reports Vol.4 No.1
The over-expression of Arabidopsis CAX1 and CAX2 causes transgenic tomato plants to reveal severe $Ca^{2+}$ deficiency-like symptoms such as tip-burn and/or blossom end rot, despite there being sufficient $Ca^{2+}$ in each plant part. To correct the symptoms and to moderately enhance the calcium level, a worldwide vegetable tomato was genetically engineered using a modified Arabidopsis cation/$H^+$ antiporter sCAX2A, a mutant form of Arabidopsis CAX2. Compared with the wild-type, the sCAX2A-expressing tomato plants demonstrated elevated $Ca^{2+}$ levels in the fruits with almost no changes in the levels of $Mn^{2+}$, $Cu^{2+}$, and $Fe^{2+}$. Moreover, expression of sCAX2A in tomato plants did not show any significant alterations in their morphological phenotypes. Unlike 35S::sCAX1 construct, sCAX2A antiporter gene driven by 35S promoter can be a valuable tool for enriching $Ca^{2+}$ contents in the tomato fruit without additional accumulation of the undesirable cations.
Complete Genome Sequence of Croceibacter atlanticus HTCC2559T
Oh, Hyun-Myung,Kang, Ilnam,Ferriera, Steve,Giovannoni, Stephen J.,Cho, Jang-Cheon American Society for Microbiology 2010 Journal of Bacteriology Vol.192 No.18
<B>ABSTRACT</B><P>Here we announce the complete genome sequence of <I>Croceibacter atlanticus</I> HTCC2559<SUP>T</SUP>, which was isolated by high-throughput dilution-to-extinction culturing from the Bermuda Atlantic Time Series station in the Western Sargasso Sea. Strain HTCC2559<SUP>T</SUP> contained genes for carotenoid biosynthesis, flavonoid biosynthesis, and several macromolecule-degrading enzymes. The genome confirmed physiological observations of cultivated <I>Croceibacter atlanticus</I> strain HTCC2559<SUP>T</SUP>, which identified it as an obligate chemoheterotroph.</P>