Effects of sulfate and sulfide on the life cycle of Zizania palustris in hydroponic and mesocosm experiments.

@article{Pastor2017EffectsOS,
  title={Effects of sulfate and sulfide on the life cycle of Zizania palustris in hydroponic and mesocosm experiments.},
  author={J. Pastor and B. Dewey and N. Johnson and E. Swain and P. Monson and E. Peters and A. Myrbo},
  journal={Ecological applications : a publication of the Ecological Society of America},
  year={2017},
  volume={27 1},
  pages={
          321-336
        }
}
  • J. Pastor, B. Dewey, +4 authors A. Myrbo
  • Published 2017
  • Biology, Medicine
  • Ecological applications : a publication of the Ecological Society of America
Under oxygenated conditions, sulfate is relatively non-toxic to aquatic plants. However, in water-saturated soils, which are usually anoxic, sulfate can be reduced to toxic sulfide. Although the direct effects of sulfate and sulfide on the physiology of a few plant species have been studied in some detail, their cumulative effects on a plant's life cycle through inhibition of seed germination, seedling survival, growth, and seed production have been less well studied. We investigated the effect… Expand
Interactions between sulfide and reproductive phenology of an annual aquatic plant, wild rice (Zizania palustris)
TLDR
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
Toxicity of sulfide to early life stages of wild rice (Zizania palustris).
TLDR
Results indicate that exposure of developing wild rice to sulfide at ≥3.1’mg sulfide/L in the presence of 0.8 mg Fe/L reduced mesocotyl emergence, demonstrating the importance of iron in mitigating sulfide toxicity to wild rice. Expand
Impact of Hydroponic Oxygen Control in Sulfide Toxicity to Early Life-Stages of Wild Rice (Zizania palustris).
TLDR
Overall, mesocotyl emergence was consistently the most sensitive endpoint in the study, while seed activation, seedling survival, root growth, leaf number and biomass, and phytotoxicity were less sensitive endpoints. 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
Sulfide Generated by Sulfate Reduction is a Primary Controller of the Occurrence of Wild Rice (Zizania palustris) in Shallow Aquatic Ecosystems
Field observations suggest that surface-water sulfate concentrations control the distribution of wild rice, an aquatic grass (Zizania palustris). However, hydroponic studies show that sulfate is notExpand
Cumulative Sulfate Loads Shift Porewater to Sulfidic Conditions in Freshwater Wetland Sediment
TLDR
The results illuminate the evolution of the geochemical setting and timescales over which 4 yr of cumulative sulfate loading resulted in a wholesale shift from Fe‐dominated to sulfide‐dominated porewater chemistry, accompanied by detrimental effects to, and eventual extirpation of, self‐perpetuating wild rice populations. Expand
Increase in Nutrients, Mercury, and Methylmercury as a Consequence of Elevated Sulfate Reduction to Sulfide in Experimental Wetland Mesocosms
Microbial sulfate reduction (MSR) in both freshwater and marine ecosystems is a pathway for the decomposition of sedimentary organic matter (OM) after oxygen has been consumed. In experimentalExpand
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The generation of elevated concentrations of sulfide in sediment pore waters that are toxic to rooted macrophytes is problematic in both marine and freshwaters. In marine waters, biogeochemicalExpand
Diverse Communities of hgcAB+ Microorganisms Methylate Mercury in Freshwater Sediments Subjected to Experimental Sulfate Loading.
TLDR
The results indicate that methylating communities dominated by diverse anaerobic microorganisms that do not reduce sulfate can produce MeHg as effectively as communitiesdominated by sulfate-reducing populations. Expand
Toxicity and Transcriptome Sequencing (RNA-seq) Analyses of Adult Zebrafish in Response to Exposure Carboxymethyl Cellulose Stabilized Iron Sulfide Nanoparticles
TLDR
Preliminary mechanistic insights into potential toxic effects of organic matter stabilized FeS nanoparticles are provided, which will improve the understanding of the genotoxicity caused by stabilized nanoparticles. Expand
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