单词	chemoautotroph
释义	chemoautotroph /ˌkiːməʊˈɔːtətrəʊf / /ˌkiːməʊˈɔːtətrɒf/ /ˌkɛməʊˈɔːtətrəʊf/ /ˌkɛməʊˈɔːtətrɒf/ noun Biology An organism, typically a bacterium, which derives energy from the oxidation of inorganic compounds.These so-called chemoautotrophs use the stored energy of certain chemicals [usually sulfides such as hydrogen sulfide or iron sulfide (FeS 2)] to drive chemosynthesis.... The reaction pathways that these chemoautotrophs employ involve the reduction of inorganic carbon compounds to form organic compounds, which include their biomolecules. While chemoautotrophs are uncommon, photoautotrophs are common and quite diverse. Derivatives chemoautotrophic /ˌkiːməʊɔːtəˈtrəʊfɪk/ /ˌkiːməʊɔːtəˈtrɒfɪk/ adjective ... These resemble the foot of some specialized bivalves (Solemya or Lucina) used to penetrate putrid sediment to release H 2 S consumed by symbiotic chemoautotrophic bacteria. They evolved towards sessile life possibly in symbiosis with photo- or chemoautotrophic microorganisms. ‘Our synthesis of ammonia may serve as a model for a primordial nitrogen fixing system and conforms well with theories of the chemoautotrophic origin of life,’ say the researchers. chemoautotrophy /ˌkiːməʊɔːtəˈtrəʊfi/ /ˌkiːməʊɔːtəˈtrɒfi/ noun ... Nitrifying bacteria are capable of chemoautotrophy. In anoxic bank sediments, respiration was also much greater than chemoautotrophy, but was entirely anaerobic.
随便看	vitreousness vitrescence vitrescent vitrifaction vitrifiable vitrification vitriform vitrify vitrine vitriol vitriolic vitriolically Vitruvius Vitsebsk vitta vittle vituperate vituperation vituperative vituperator Vitus, St Vitória viva vivace vivacious

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