Chemotrophic growth of heliobacteria in darkness
1994; Oxford University Press; Volume: 115; Issue: 1 Linguagem: Inglês
10.1111/j.1574-6968.1994.tb06613.x
ISSN1574-6968
AutoresLinda K. Kimble, Amy K. Stevenson, Michael T. Madigan,
Tópico(s)Algal biology and biofuel production
ResumoConditions are described that support anaerobic dark chemotrophic growth of heliobacteria. Growth was pyruvate-dependent and was best in well-buffered pyruvate media supplemented with yeast extract. Heliobacterial cells grown in darkness synthesized bacteriochlorophyll g and carotenoids and fermented pyruvate to acidic products, CO2, and in some cases, H2. All recognized species of heliobacteria as well as several newly isolated strains were capable of dark anaerobic growth, suggesting that this growth mode may be ecologically important for survival of these organisms in their soil habitat.
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