Phototrophic purple sulfur bacteria as heat engines in the South Andros Black Hole
Tóm tắt
Photosynthetic organisms normally endeavor to optimize the efficiency of their light-harvesting apparatus. However, here we describe two bacterial isolates belonging to the genera Allochromatium and Thiocapsa that demonstrate a novel adaptation by optimizing their external growth conditions at the expense of photosynthetic efficiency. In the South Andros Black Hole, Bahamas, a dense l-m thick layer of these anoxygenic purple sulfur bacteria is present at a depth of 17.8 m. In this layer the water temperature increases sharply to 36°C as a consequence of the low-energy transfer efficiency of their carotenoids (ca. 30%). These include spirilloxanthin, and related polyene molecules and a novel chiral carotenoid identified as spirilloxanthin-2-ol, not previously reported in purple bacteria. To our knowledge, this study presents the first evidence of such a bacterial mass significantly increasing the ambient water temperature. The transduction of light to heat energy to excess heat may provide these anoxygenic phototropic bacteria with a competitive advantage over non-thermotolerant species, which would account for their predominance within the microbial layer.
Tài liệu tham khảo
citation_journal_title=Biochim Biophys Acta; citation_title=Energy transfer between the carotenoid and the bacteriochlorophyll within the B800-850 light harvesting pigment-protein complex of Rhodopseudomonas sphaeroides
; citation_author=RJ Cogdell, MF Hipkins, W MacDonald, TG Truscott; citation_volume=634; citation_publication_date=1981; citation_pages=191-202; citation_doi=10.1016/0005-2728(81)90138-9; citation_id=CR1
citation_title=Composting and recycling: municipal wastes; citation_publication_date=1993; citation_id=CR2; citation_author=LTG Diaz; citation_author=M Savage; citation_author=LL Eggerth; citation_author=CG Golerke; citation_publisher=Boca Raton
citation_journal_title=Helv Chim Acta; citation_title=Synthesis of (S)-Plectaniaxanthin; citation_author=R Dumont, H Pfander; citation_volume=67; citation_publication_date=1984; citation_pages=1283-1290; citation_doi=10.1002/hlca.19840670514; citation_id=CR3
citation_journal_title=Mar Biol; citation_title=Depth-dependent photoadaptation by zooanthellae of the reef coral annularis; citation_author=P Dunstan; citation_volume=68; citation_publication_date=1982; citation_pages=253-264; citation_doi=10.1007/BF00409592; citation_id=CR4
citation_journal_title=Biochim Biophys Acta; citation_title=Isolation and characterization of the different B800-850 light-harvesting complexes from low- and high-light grown cells of Rhodopseudomonas palustris, strain 2.1.6; citation_author=MB Evans, AM Hawthornthwaite, RJ Cogdell; citation_volume=1016; citation_publication_date=1990; citation_pages=71-76; citation_doi=10.1016/0005-2728(90)90008-R; citation_id=CR5
citation_title=The photochemistry and function of carotenoids in photosynthesis; citation_inbook_title=Carotenoids in photosynthesis; citation_publication_date=1993; citation_pages=252-326; citation_id=CR6; citation_author=HA Frank; citation_author=RJ Cogdell; citation_publisher=Springer-Verlag
citation_journal_title=Biochim Biophys Acta; citation_title=Energy transfer between carotenoids and bacteriochlorophyll in chromatophores of purple bacteria; citation_author=JC Goedheer; citation_volume=35; citation_publication_date=1959; citation_pages=1-8; citation_doi=10.1016/0006-3002(59)90328-2; citation_id=CR7
citation_title=Bacteriochlorophyll-binding proteins; citation_inbook_title=Chlorophylls; citation_publication_date=1991; citation_pages=493-528; citation_id=CR8; citation_author=AM Hawthornthwaite; citation_author=RJ Cogdell; citation_publisher=CRC
citation_journal_title=Environ Microbiol; citation_title=Characterization of purple sulfur bacteria from the South Andros Black Hole cave system: highlights taxonomic problems for ecological studies among the genera Allochromatium and Thiocapsa
; citation_author=RA Herbert, A Ranchou-Peyruse, R Duran, R Guyoneaud, S Schwabe; citation_volume=7; citation_publication_date=2005; citation_pages=1260-1268; citation_doi=10.1111/j.1462-2920.2005.00815.x; citation_id=CR9
citation_journal_title=J Agric Res; citation_title=Microrganisms and heat production in silage fermentation; citation_author=OW Hunter; citation_volume=10; citation_publication_date=1917; citation_pages=75-83; citation_id=CR10
citation_journal_title=Mar Ecol Prog Ser; citation_title=Cyanobacterial blooms cause heating of the sea surface; citation_author=M Kahru, JM Leppanen, O Rud; citation_volume=101; citation_publication_date=1993; citation_pages=1-7; citation_doi=10.3354/meps101001; citation_id=CR11
citation_journal_title=J Geophys Res; citation_title=Phytoplankton and thermal structures in the upper ocean: consequences of nonuniformity in chlorophyll profile; citation_author=M Lewis, R Cullen, T Platt; citation_volume=88; citation_publication_date=1983; citation_pages=2565-2570; citation_id=CR12
citation_journal_title=Acta Chem Scand; citation_title=Bacterial carotenoids 56. On the spirilloxanthin stereoisomeric set; citation_author=TR Lindal, S Liaaen-Jensen; citation_volume=51; citation_publication_date=1997; citation_pages=1128-1131; citation_id=CR13
citation_journal_title=Int J Syst Bacteriol; citation_title=Chromatium tepidum sp. nov., a thermophilic photosynthetic bacterium of the family Chromatiaceae; citation_author=MT Madigan; citation_volume=36; citation_publication_date=1986; citation_pages=222-227; citation_doi=10.1099/00207713-36-2-222; citation_id=CR14
citation_journal_title=Biochim Biophys Acta; citation_title=Analyses of light-induced bacteriochlorophyll absorbance change and fluorescence emission in purple bacteria; citation_author=M Nishimura, A Takamiya; citation_volume=120; citation_publication_date=1966; citation_pages=34-44; citation_doi=10.1016/0926-6585(66)90274-3; citation_id=CR15
citation_journal_title=Biochim Biophys Acta; citation_title=Factors controlling the efficiency of energy transfer from carotenoids to bacteriochlorophyll in purple photosynthetic bacteria; citation_author=T Noguchi, H Hayashi, M Tasumi; citation_volume=1017; citation_publication_date=1990; citation_pages=280-290; citation_doi=10.1016/0005-2728(90)90194-9; citation_id=CR16
citation_journal_title=Limnol Oceanogr; citation_title=Characterization of a dense, purple sulfur bacterial layer in a meromictic salt lake; citation_author=J Overmann, JT Beatty, KJ Hall, N Pfennig, TG Northcote; citation_volume=36; citation_publication_date=1991; citation_pages=846-859; citation_id=CR18
citation_journal_title=Appl Environ Microbiol; citation_title=Purple sulfur bacteria control the growth of aerobic heterotrophic bacterioplankton in a meromictic salt lake; citation_author=J Overmann, JT Beatty, KJ Hall; citation_volume=62; citation_publication_date=1996; citation_pages=3251-3258; citation_id=CR17
citation_journal_title=Limnol Oceanogr; citation_title=The sulfur cycle in a meromictic salt lake; citation_author=J Overmann, TJ Beatty, HR Krause, KJ Hall; citation_volume=41; citation_publication_date=1996; citation_pages=147-156; citation_doi=10.4319/lo.1996.41.1.0147; citation_id=CR19
citation_title=The Blue Holes of the Bahamas; citation_publication_date=1985; citation_id=CR20; citation_author=RJ Palmer; citation_publisher=Jonathan Cape
citation_title=Family chromatiaceae; citation_inbook_title=Bergey’s manual of determinative bacteriology; citation_publication_date=1989; citation_pages=1637-1653; citation_id=CR21; citation_author=N Pfennig; citation_author=HG Trüper; citation_publisher=Williams and Wilkins
citation_title=The family Chromatiaceae; citation_inbook_title=The prokaryotes; citation_publication_date=1992; citation_pages=3200-3221; citation_id=CR22; citation_author=N Pfennig; citation_author=HG Trüper; citation_publisher=Springer Verlag
citation_journal_title=J Exp Mar Biol Ecol; citation_title=Salinity control of benthic microbial mat production in a Bahamian hypersaline lagoon; citation_author=JL Pinkney, HW Paerl, BM Bebout; citation_volume=187; citation_publication_date=1995; citation_pages=222-237; citation_id=CR23
citation_journal_title=Quatern Res Int; citation_title=Black Holes of the Bahamas: what are they and why they are black; citation_author=S Schwabe, RA Herbert; citation_volume=121; citation_publication_date=2004; citation_pages=3-11; citation_id=CR24
citation_title=Bahamian landscapes: an Introduction to the geography of the Bahamas; citation_publication_date=1994; citation_id=CR25; citation_author=NE Sealey; citation_publisher=Media Publishing
citation_journal_title=Opt Soc Am J; citation_title=Experimental study of the absorption in distilled water, artificial sea water, and heavy water in the visible region of the spectrum; citation_author=SA Sullivan; citation_volume=53; citation_publication_date=1963; citation_pages=962-968; citation_doi=10.1364/JOSA.53.000962; citation_id=CR26
citation_title=Carotenoids and carotenogenesis in anoxygenic photosynthetic bacteria; citation_inbook_title=The photochemistry of carotenoids; citation_publication_date=1999; citation_pages=39-69; citation_id=CR27; citation_author=S Takaichi; citation_publisher=Kluwer Academic Publisher
citation_journal_title=Methods Enzymol; citation_title=Characterization of carotenoids in photosynthetic bacteria; citation_author=S Takaichi, K Shimada; citation_volume=213; citation_publication_date=1992; citation_pages=374-385; citation_doi=10.1016/0076-6879(92)13139-O; citation_id=CR29
citation_journal_title=Plant Cell Physiol; citation_title=Myxoxanthophyll in Synechocystis sp. PCC 6803 is myxol 2′-dimethyl-fucoside, (3R,2′S)-myxol 2′-(2,4-di-O-methyl-a-l-fucoside), not rhamnoside; citation_author=S Takaichi, T Maoka, K Masamoto; citation_volume=42; citation_publication_date=2001; citation_pages=756-762; citation_doi=10.1093/pcp/pce098; citation_id=CR28
citation_title=Ecology of phototrophic sulfur bacteria; citation_inbook_title=Anoxygenic photosynthetic bacteria; citation_publication_date=1995; citation_pages=49-85; citation_id=CR30; citation_author=H Gemerden; citation_author=J Mas; citation_publisher=Kluwer Academic Publishers
citation_title=Fermentation and enzyme technology; citation_publication_date=1979; citation_id=CR31; citation_author=DIC Wang; citation_author=CL Cooney; citation_author=AL Demain; citation_author=P Dunuill; citation_author=AE Humphrey; citation_author=MD Lilly; citation_publisher=John Wiley and Sons
citation_title=Structure and organization of purple bacterial antenna complexes; citation_inbook_title=Anoxygenic photosynthetic bacteria; citation_publication_date=1995; citation_pages=315-348; citation_id=CR32; citation_author=H Zuber; citation_author=RJ Cogdell; citation_publisher=Kluwer Academic Publishers