Park, DH Shin, CS Kim, BH Shin, PK 2024-01-21T19:31:52Z 2024-01-21T19:31:52Z 2021-09-01 1996-08 1017-7825 https://pubs.kist.re.kr/handle/201004/144379 Growth yield of Desulfovibrio desulfuricans M6 was measured using different substrates. The cell yield of fermentative growth on pyruvate was 6.22 g cell mol(-1) pyruvate. Since 1 ATP is available from substrate-level phosphorylation from the oxidation of pyruvate to acetate, Y-ATP of the bacterium should be the same as Y-pymvate (6.22 g cell mol(-1) ATP). The cell yields of the bacterium on different electron donors were measured with sulfate as the electron acceptor. Cell yields on lactate, pyruvate and H-2 were 9.39, 13.76 and 8.45 g cell mol(-1) substrate, respectively. From these figures ATP available from electron-transport phosphorylation (ETP) of the electron donors used was calculated. ATP produced by ETP of each electron donnor were 1.71 from pyruvate, 1.51 from lactate and 1.76 from H-2. These values show that electrons from the oxidation of lactate to pyruvate are consumed to reduce sulfate through a reverse electron transport mechanism requiring 0.2 ATP for each pair of electrons. Based on these results, discussions are made on the electron transport mechanism in the bacterium. English KOREAN SOC APPLIED MICROBIOLOGY SULFATE-REDUCING BACTERIA HYDROGEN PLUS SULFATE SOLE ENERGY-SOURCE METABOLISM The growth yield of Desulfovibrio desulfuricans M6 on different substrates Article 1 JOURNAL OF MICROBIOLOGY AND BIOTECHNOLOGY, v.6, no.4, pp.232 - 237 JOURNAL OF MICROBIOLOGY AND BIOTECHNOLOGY 6 4 232 237 scie scopus A1996VF00400002 2-s2.0-2842548170 Biotechnology & Applied Microbiology Microbiology Biotechnology & Applied Microbiology Microbiology Article SULFATE-REDUCING BACTERIA HYDROGEN PLUS SULFATE SOLE ENERGY-SOURCE METABOLISM Desulfobibrio desulfuricans M6 bioenergetics molar growth yield Y-ATP anaerobic respiration sulfate-reduction