Methanopterin is a folate analog involved in the C1 metabolism of methanogenic archaea, sulfate-reducing archaea, and methylotrophic bacteria. Although a pathway for methanopterin biosynthesis has been described in methanogens, little is known about the enzymes and genes involved in the biosynthetic pathway. The enzyme beta-ribofuranosylaminobenzene 5'-phosphate synthase (beta-RFAP synthase) ca...

The present study was undertaken to investigate the effect of crude seed powder (CSP) and gross saponins extract (GSE) of seeds of Albizia lebbeck on antimicrobial activity by taking two Gram-positive (Staphylococcus aureus and Bacillus cereus), two Gram-negative (Escherichia coli and Salmonella Typhi) bacteria, and two fungi species (Aspergillus niger and Candida butyric) were taken at 25, 50,...

The obligate aceticlastic methanogen Methanosaeta thermophila uses a membrane-bound ferredoxin:heterodisulfide oxidoreductase system for energy conservation. We propose that the system is composed of a truncated form of the F(420)H(2) dehydrogenase, methanophenazine, and the heterodisulfide reductase. Hence, the electron transport chain is distinct from those of well-studied Methanosarcina spec...

This study aimed to investigate how the consumption of purple neem foliage rich in anthocyanins improves rumen fermentation, growth performance and plasma antioxidant activity growing goats. In total, 25 Anglo-Nubian Thai native male goats (about 20 ± 2 kg body weight; mean standard deviation (SD)) were assigned × + 1 factorial a completely randomized design. There five treatments: (1) control,...

Methanogenic archaeon ISO4-G1 is a methylotrophic methanogen belonging to the orderMethanomassiliicoccalesthat was isolated from a sheep rumen. Its genome has been sequenced to provide information on the genetic diversity of rumen methanogens in order to develop technologies for ruminant methane mitigation.

Methanobrevibacter smithii is a common inhabitant of the human gut. Here, we present a draft genome sequence of M. smithii isolate WWM1085, obtained from a human stool sample. This sequence will improve our understanding of the genetic diversity of this human-associated methanogen.