Path: utzoo!utgpu!watmath!iuvax!bionet!com.qz.se!P35067 From: P35067@COM.QZ.SE (Siegfried Michael Schoberth) Newsgroups: bionet.technology.conversion Subject: Sender: Siegfried Michael Schoberth Message-ID: <8910021935.AA25299@net.bio.net> Date: 30 Sep 89 17:18:00 GMT References: <442316@QZCOM> Lines: 74 Subject: BIOGAS: salinity and biogas production *Receiver: Anaerobic Digestion (MIRCEN) Technical* ------------------------------------------------------------ Foo: I just did a very brief research in my documentary on "halophiles" and picked out entries dealing with methane formation and anaerobes: ************************************************************ Boone, D.R.; Worakit, S.; Mathrani, I.M.; Mah, R.A. 1986. Alkaliphilic methanogens from high-pH lake sediments. System. Appl. Microbiol. 7:230-234. Cherni, N.E.; Popenko, V.I.; Moskvin-Tarkhanov, M.I.; Zhilina, T.N. 1986. Study of the Cell Ultrastructure of the Halophilic Archaebacterium Methanococcus halophilus. Microbiology (USSR) 55:796-. Kamekura, M.; Hamana, K.; Matsuzaki, S. 1987. Polyamine contents and amino acid decarboxylation activities of extremely halophilic archaebacteria and some eubacteria. FEMS Microbiol. Lett. 43:301-. King, G.M. 1988. Methanogenesis from Methylated Amines in a Hypersaline Algal Mat. Appl. Environ. Microbiol. 54:130-136.. Kushner, D.J. 1986. Molecular adaptation of enzymes, metabolic systems and transport systems in halophilic bacteria. FEMS Microbiol. Rev. 39:121-127. Mathrani, I.M.; Boone, D.R.; Mah, R.A. 1988. Isolation and characterization of four halophilic methanogens and DNA/DNA homology studies of 12 halophilic methanogens. Am. Soc. Microbiol., Abstr. Ann. Meet. I-23. (* my comment: Strains have NaCl concentrati o n optima of 2.1 M (12.3%). They use methylamines and methanol for growth, and not acetic acid and H2/CO2 which are the chief intermediates for methane formation in anaerobic digestion*) Oren, A.; Paster, B.J.; Woese, C.R. 1984. Haloanaerobiaceae: a new family of moderately halophilic, obligatory anaerobic bacteria. System. Appl. Microbiol. 5:71-80. Oren, A. 1986. The ecology and taxonomy of anaerobic halophilic eubacteria. FEMS Microbiol. Rev. 39:23-29. Oren, A.; Pohla, H.; Stackebrandt, E. 1987. Transfer of Clostridium lortetii to a New Genus Sporohalobacter gen nov As Sporohalobacter lortetii comb nov, and Description of Sporohalobacter marismortui sp nov. Syst. Appl. Microbiol. 9:239-. Paterek, J.R.; Smith, P.H. 1988. Methanohalophilus mahii gen. nov., sp. nov., a methylotrophic halophilic methanogen. Int. J. Syst. Bact. 38:122-123. Sowers, K.R.; Gunsalus, R.P. 1988. Adaptation for Growth at Various Saline Concentrations by Methanosarcina spp. Am. Soc. Microbiol., Abstr. Ann. Meet. I-22. (* my comment: All described species grow in media of 0.005 to 1.2 M (0.03 - 7%) NaCl*) Sowers, K.R.; Gunsalus, R.P. 1988. Adaptation for Growth at Various Saline Concentrations by the Archaebacterium Methanosarcina thermophila. J. Bacteriol. 170:998-1002. Yu, I.K.; Kawamura, F. 1987. Halomethanococcus doii gen. nov., sp. nov.: an obligately halophilic methanogenic bacterium from solar salt ponds. J. Gen. Appl. Microbiol. 33:303-. ************************************************************ If anybody is interested, I know Mah, Zhilina, Stackebrandt and Gunsalus personally and could ask what they think about biogas and salinity. P.S.: I am more often (or less seldom, to be more precise) in BITNET than in COM. My network-address is "IBT006 at DJUKFA11" Siegfried Michael Schoberth ------------------------------------------------------------