Species-specific enzymatic tolerance of sulfide toxicity in plant roots

@article{Martin2015SpeciesspecificET,
  title={Species-specific enzymatic tolerance of sulfide toxicity in plant roots},
  author={N. Martin and B. Maricle},
  journal={Plant physiology and biochemistry : PPB / Societe francaise de physiologie vegetale},
  year={2015},
  volume={88},
  pages={36 - 41}
}
  • N. Martin, B. Maricle
  • Published 2015
  • Chemistry, Biology, Medicine
  • Plant physiology and biochemistry : PPB / Societe francaise de physiologie vegetale
Toxic effects of sulfide come from a poisoning of a number of enzymes, especially cytochrome c oxidase, which catalyzes the terminal step in mitochondrial aerobic respiration. Despite this, some estuarine plants live in sulfide-rich sediments. We hypothesized estuarine and flooding-tolerant species might be more tolerant of sulfide compared to upland species, and this was tested by measures of root cytochrome c oxidase and alcohol dehydrogenase activities in extracts exposed to sulfide. Enzyme… Expand
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Effects of sulfate and sulfide on the life cycle of Zizania palustris in hydroponic and mesocosm experiments.
  • J. Pastor, B. Dewey, +4 authors A. Myrbo
  • Biology, Medicine
  • Ecological applications : a publication of the Ecological Society of America
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TLDR
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Hydrogen sulfide suppressed the activity of alcohol dehydrogenase (ADH), the enzyme that catalyzes the terminal step in alcoholic fermentation, in the roots of two wetland macrophytes, lending support to the hypotheses that ADH activity, as a mcasurc of fermcntative metabolism, is important in maintaining the root energy status of wetland plants under hypoxic-anoxic conditions. Expand
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