The effect of methemoglogin on the inhibition of cytochrome c oxidase by cyanide, sulfide or azide

Smith, Lucile; Kruszyna, Harriet; Smith, Roger P.

doi:10.1016/0006-2952(77)90287-8

Cited by 128 publications

(55 citation statements)

References 22 publications

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“…Among other things, high concentrations of H 2 S inhibit electron transport in aerobic respiration and thus are acutely toxic for most eukaryotic organisms (Evans 1967;Theede 1973;Nicholls 1975;Smith et al 1977;Carrico et al 1978;Stallones et al 1979;Bagarinao 1992;Grieshaber and Völkel 1998). Some fishes are able to detoxify sulfide to some extent (Bagarinao 1992); e.g., they are capable of oxidizing sulfide to thiosulfate in liver mitochondria (Bagarinao and Vetter 1990) or binding sulfide to ferrous and ferric hemoglobin and other blood compounds (Evans 1967;Bagarinao 1992;Bagarinao and Vetter 1989).…”

Section: Discussionmentioning

confidence: 96%

Sperm production in an extremophile fish, the cave molly (Poecilia mexicana, Poeciliidae, Teleostei)

et al. 2007

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A prominent trade-off in life history theory and evolution balances the costs of reproduction with those of basic somatic needs. Hence, reproductive efforts may be reduced in environments where additional energy is required for somatic maintenance. Here, we investigated male sperm stores in Atlantic mollies (Poecilia mexicana) from a sulfidic cave and several sulfidic and non-sulfidic surface habitats. We found significant differences among populations in the number of sperm stripped per male, which was also correlated with differences in gonad weights. The largest sperm stores were detected in males from non-sulfidic surface creeks, while males from a partially sulfidic surface system had lower sperm counts, and males from completely sulfidic systems, surface as well as subterranean, had even fewer available sperm. We conclude that the extreme environmental conditions in sulfidic habitats appear to constrain male sperm production, since hydrogen sulfide as a naturally occurring toxin requires energy-demanding adaptations. Furthermore, we examined sperm counts of lab-reared cave and surface mollies in response to energy limitation. Males from stock populations were placed under high and low food treatments for a 2-week period and then stripped of sperm. Sperm counts of surface mollies tended to be reduced by low food availability, whereas sperm counts of cave mollies did not significantly vary between food treatments, which likely points towards a higher starvation resistance in cave mollies.

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Section: Discussionmentioning

confidence: 96%

Sperm production in an extremophile fish, the cave molly (Poecilia mexicana, Poeciliidae, Teleostei)

et al. 2007

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“…Under reducing conditions, hydrogen sulfide (H 2 S) is often produced by sulfate reduction. H 2 S is harmful to aerobic organisms because it inhibits the respiratory enzyme cyto chrome c oxidase (Smith et al 1977). Therefore, the generation of H 2 S in sediment or in the bottom layer of a water body has a strong negative effect on the survival of benthic infauna (Vismann 1991, Diaz & Rosen berg 1995.…”

Section: Introductionmentioning

confidence: 99%

Effects of hydrogen sulfide on the feeding activity of Manila clam Ruditapes philippinarum

Nagasoe¹,

Yurimoto²,

Suzuki³

et al. 2011

Aquat. Biol.

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“…The undissociated species H 2 S is highly toxic to fish and shrimp. Hydrogen sulfide can inhibit aerobic respiration by binding to the heme of cytochrome c oxidase in place of molecular oxygen (Smith et al, 1977). Hydrogen sulfide toxicity is inversely related to dissolved oxygen concentration.…”

Section: Redox Reactions In the Pond Bottom Soilmentioning

confidence: 99%

Shrimp and fish pond soils: processes and management

2003

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The effect of methemoglogin on the inhibition of cytochrome c oxidase by cyanide, sulfide or azide

Cited by 128 publications

References 22 publications

Sperm production in an extremophile fish, the cave molly (Poecilia mexicana, Poeciliidae, Teleostei)

Sperm production in an extremophile fish, the cave molly (Poecilia mexicana, Poeciliidae, Teleostei)

Effects of hydrogen sulfide on the feeding activity of Manila clam Ruditapes philippinarum

Shrimp and fish pond soils: processes and management

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