Species-specific enzymatic tolerance of sulfide toxicity in plant roots

  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},
  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
The cytochrome bd oxidase of Escherichia coli prevents respiratory inhibition by endogenous and exogenous hydrogen sulfide
It is proposed that the sulfide resistance of the cytochrome bd oxidase is a key trait that permits respiration in such habitats as the intestinal environment where E. coli dwells. Expand
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
  • 2017
Wild rice seedling emergence, seedling survival, biomass growth, viable seed production, and seed mass all declined with sulfate additions and hence sulfide concentrations in sediment and wild rice populations became extinct in most tanks with concentrations of 250 mg SO4 /L or greater in the overlying water. Expand
Effect of sulfide and the role of root mass on metabolic fluxes in the seagrass Zostera marina
Abstract While seagrass communities serve important ecological and economic purposes, their health has been declining worldwide. Sediment sulfide toxicity might be an important stressor ofExpand
Impact of Hydroponic Oxygen Control in Sulfide Toxicity to Early Life-Stages of Wild Rice (Zizania palustris).
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Sulfide appears to slow plant development in a way that gives the plant less time to allocate nutrients to seeds before senescence, and the impact of sulfide in delaying reproductive life stages of wild rice and changing seasonal rooting zone biogeochemistry could extend to other plant species and additional chemical species that change mobility with redox potential. Expand
Biochemical adaptations of four submerged macrophytes under combined exposure to hypoxia and hydrogen sulphide
Investigation of the stress responses and biochemical adaptations of four submerged macrophytes to the combined exposure of hypoxia and hydrogen sulfide found the higher activities of the three antioxidative enzymes and their anaerobic respiration abilities (ADH activity) resulted in higher tolerance and susceptibility under high sulfide concentrations. Expand
Hydrogen Sulfide: A Novel Gaseous Molecule for Plant Adaptation to Stress
Hydrogen sulfide (H 2 S) has emerged as a novel gaseous signal molecule with multifarious effects on seed germination, plant growth, development, and physiological processes. Due to its dominant roleExpand
Assessment of the ameliorating effect of sedimentary iron inputs on sulfide stress in eelgrass beds.
The addition of iron can reduce the toxicity of sulfides to eel Grass beds, resulting in an increase in plant density and productivity, and can even reverse the decline of eelgrass beds exposed to high sulfide concentrations. Expand
Higher Novel L-Cys Degradation Activity Results in Lower Organic-S and Biomass in Sarcocornia than the Related Saltwort, Salicornia1[OPEN]
This study investigates the role of two pathways on organic-S and biomass accumulation in Salicornia and Sarcoconia: the sulfate reductive pathway that generates Cys and l-Cys desulfhydrase that degrades Cys to H2S, NH3, and pyruvate and adenosine 5′-phosphosulfate reductase. Expand
Iron sulfide formation on root surfaces controlled by the life cycle of wild rice (Zizania palustris)
Iron sulfide plaques have been observed on roots of wild rice (Zizania palustris) and other wetland plants grown in sulfur-impacted freshwater ecosystems, but the mechanism of their formation andExpand


Mechanism for the hydrogen sulfide‐induced growth limitation in wetland macrophytes
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
Respiratory enzyme activities correlate with anoxia tolerance in salt marsh grasses
Differences in aerobic demand and sulfide sensitivity may influence estuarine species zonation in salt marsh communities, as well as compared to the inland species maize. Expand
Sulfide as an environmental factor and toxicant: tolerance and adaptations in aquatic organisms
Among organisms lacking sulfide-oxidizing bacterial symbionts, the mitochondria may provide the chief defense against environmental sulfide, and may allow the whole organism to tolerate sulfide concentrations 2-3 orders of magnitude greater than would inhibit cytochrome c oxidase. Expand
Sulfide effects on Thalassia testudinum carbon balance and adenylate energy charge
Abstract Low iron content in tropical carbonate sediments limits the formation of iron–sulfide compounds such as pyrite. Thus, seagrasses in the tropics may be more susceptible to sulfide toxicity.Expand
Atmospheric oxygen level influences alcohol dehydrogenase and pyruvate decarboxylase activities in sweetpotato roots
Summary Alcoholic fermentation enzyme activities in sweetpotato ( Ipomoea batatas L. Lam, cv. Beauregard) roots varied with atmospheric O 2 content (0, 1, 1.5, 5, and 21 % O 2 ) at 22 ± 2 °C.Expand
Sulphide tolerance in coastal halophytes
The effect of sulphide on the growth of several species of salt-marsh plants was investigated and the wide ranging halophyte Aster tripolium, also appeared to be tolerant of sulphides at a concentration frequently encountered in salt marshes. Expand
Oxidation of sulfide by Spartina alterniflora roots
Root tips from the marsh grass Spartina alterniflora, collected from areas of high and low pore-water sulfide, exhibited a substantial capacity to catalyze sulfide oxidation, as determined by closed-chamber respirometry, indicating that estuarine plants may detoxify environmental sulfide via sulfide oxidization. Expand
Relationship of soil hydrogen sulfide level to net carbon assimilation ofPanicum hemitomon andSpartina patens
The reduction in net carbon assimilation of both species measured at elevated H2S concentrations suggests that extreme anaerobiosis and elevated sulfide could contribute to the growth reduction of these species under certain conditions. Expand
The Effect of Hypoxia and Sulphide on Culture-Grown Wetland and Non-Wetland Plants II. METABOLIC AND PHYSIOLOGICAL CHANGES
It is suggested that maintenance of relatively high COase activity in wetland plants may help to 'scavenge' any available oxygen within roots and thus help reduce energy loss. Expand
Influence of Oxygen and Sulfide Concentration on Nitrogen Uptake Kinetics in Spartina Alterniflora
The effects of sulfide concentration and hypoxia on NH4@?—uptake kinetics in Spartina alterniflora were examined in a laboratory culture experiment. Both factors significantly influenced theExpand