Frankia strains are N2-fixing actinomycetes whose isolation and cultivation were first
reported in 1978. They induce N2-fixing root nodules on diverse nonleguminous …

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Recent data indicate that the slow-growing, non-acid-producing root nodule bacteria of
leguminous plants should be separated from the fast-growing, acid-producing strains and …

Abstract Al. pha. pro. te. o. bac. te′ ri. a. Gr. n. alpha name of first letter of Greek alphabet;
Gr. n. Proteus ocean god able to change shape; Gr. n. bakterion a small rod; ML fem. pl. n …

Carbon dioxide may serve as the sole source of carbon for a diverse array of
microorganisms found in the microbial world. There are several pathways and schemes that …

Thirty sequenced microbial hydrogenases are classified into six classes according to
sequence homologies, metal content and physiological function. The first class contains …

Hydrogenases are metalloenzymes that catalyze the oxidation of H2 in aerobic H2-oxidizing
bacteria. These hydrogenases are either dimeric membrane-bound enzymes or tetrameric …

Volcanic activity creates new landforms that can change dramatically over time as a
consequence of biotic succession. Nonetheless, volcanic deposits present severe …

Caves are relatively accessible subterranean habitats ideal for the study of subsurface
microbial dynamics and metabolisms under oligotrophic, non-photosynthetic conditions. A …

The aerobic chemolithoautotrophic hydrogen-oxidizing bacteria, also known as" knallgas"
bacteria, characterized by the ability to utilize gaseous hydrogen as electron donor with …