Exogenous hydrogen sulfide reduces cadmium uptake and alleviates cadmium toxicity in barley

Fu, Manman; Dawood, Muhammad; Wang, Nianhong; Wu, Feibo

doi:10.1007/s10725-019-00529-8

Cited by 59 publications

(20 citation statements)

References 36 publications

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“…Intriguingly, these effects could be alleviated by NaHS (Li et al 2015a ). In addition, the enhancement of photosynthetic pigment, photosynthetic quantum yield, gas exchange parameters, SPAD value, and net photosynthetic rate (Pn) could also demonstrate the repair of photosynthesis by H 2 S under toxic metal stress (Ahmad et al 2020 ; Amooaghaie et al 2017 ; Bharwana et al 2014 ; Dawood et al 2012 ; Fu et al 2019 ; Kaya et al 2018 , 2020b ; Kaya and Aslan 2020 ; Kushwaha and Singh 2020 ; Singh et al 2015 ; Wang et al 2020 ). For example, the expression of the D1 protein, a sensitive target of PSII damage, increased under drought stress.…”

Section: H 2 S Positively Responds To Biotic and Amentioning

confidence: 99%

“…Toxic metal stress can increase the death of plant somatic cells as well as reduce survival rate, biomass and yield of crops (Ahmad et al 2020 ; Fu et al 2019 ; Kaya et al 2018 , 2020b ; Kaya and Aslan 2020 ), which are attributed to the destruction of endogenous redox balance and excessive accumulation of ROS. Exogenous H 2 S alleviates the stress of toxic metals and improve the survival rate and biomass of plant seedlings, which is also due to the remodeling of the stable redox state by H 2 S in plants.…”

Section: H 2 S Positively Responds To Biotic and Amentioning

confidence: 99%

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Hydrogen sulfide (H2S) signaling in plant development and stress responses

et al. 2021

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Hydrogen sulfide (H 2 S) was initially recognized as a toxic gas and its biological functions in mammalian cells have been gradually discovered during the past decades. In the latest decade, numerous studies have revealed that H 2 S has versatile functions in plants as well. In this review, we summarize H 2 S-mediated sulfur metabolic pathways, as well as the progress in the recognition of its biological functions in plant growth and development, particularly its physiological functions in biotic and abiotic stress responses. Besides direct chemical reactions, nitric oxide (NO) and hydrogen peroxide (H 2 O 2 ) have complex relationships with H 2 S in plant signaling, both of which mediate protein post-translational modification (PTM) to attack the cysteine residues. We also discuss recent progress in the research on the three types of PTMs and their biological functions in plants. Finally, we propose the relevant issues that need to be addressed in the future research. Graphic abstract Supplementary Information The online version contains supplementary material available at 10.1007/s42994-021-00035-4.

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Section: H 2 S Positively Responds To Biotic and Amentioning

confidence: 99%

Section: H 2 S Positively Responds To Biotic and Amentioning

confidence: 99%

Hydrogen sulfide (H2S) signaling in plant development and stress responses

et al. 2021

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“…H 2 S alleviates Cd toxicity in plants. Exogenous H 2 S recovered Cd-induced growth inhibition in Brassica napus, Arabidopsis, and barley [25][26][27]. 70 µM NaHS (donor of H 2 S) largely stimulated proliferation of T. thermophila (Fig.…”

Section: Resultsmentioning

confidence: 94%

Comparative transcriptome analysis uncovers roles of hydrogen sulfide for alleviating cadmium toxicity in Tetrahymena thermophila

Xu²,

et al. 2020

Preprint

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Background: Cadmium (Cd) is a nonessential heavy metal with potentially deleterious effects on different organisms. The organisms have evolved sophisticated defense system to alleviate heavy metal toxicity. Hydrogen sulfide (H2S) effectively alleviates heavy metal toxicity in plants and reduces oxidative stress in mammals. However, the function of H2S for alleviating heavy metal toxicity in aquatic organisms remains less clear. Tetrahymena thermophila is an important model organism to evaluate toxic contaminants in an aquatic environment. In this study, the molecular roles of exogenously H2S application were explored by RNA sequencing under Cd stress in T. thermophila.Results: The exposure of 30 µM Cd resulted in T. thermophila growth inhibition, cell nigrescence, and malondialdehyde (MDA) content considerably increase. However, exogenous NaHS (donor of H2S, 70 µM) significantly alleviated the Cd-induced toxicity by inhibiting Cd absorbtion, promoting CdS nanoparticles formation and improved antioxidant system. Comparative transcriptome analysis showed that the expression levels of 9152 genes changed under Cd stress (4658 upregulated and 4494 downregulated). However, only 1359 genes were differentially expressed with NaHStreatment under Cd stress (1087 upregulated and 272 downregulated). The functional categories of the differentially expressed genes (DEGs) by gene ontology (GO) revealed that the transcripts involved in the oxidation–reduction process, oxidoreductase activity, glutathione peroxidase activity, and cell redox homeostasis were the considerable enrichments between Cd stress and NaHS treatment under Cd stress. Kyoto Encyclopedia of Genes and Genomes (KEGG) indicated that the carbon metabolism, glutathione metabolism, metabolism of xenobiotics by cytochrome P450, and ABC transporters were significantly differentially expressed components between Cd stress and NaHS treatment under Cd stress in T. thermophila. The relative expression levels of six DEGs were further confirmed through quantitative real-time polymerase chain reaction (qRT-PCR). Conclusion: NaHS alleviated Cd stress mainly through inhibiting Cd absorbtion, promoting CdS nanoparticles formation, increasing oxidation resistance, enhancing detoxification, and regulation of transport in free-living unicellular T. thermophila. These findings will expand our understanding for H2S functions in the freshwater protozoa.

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“…H 2 S alleviates Cd toxicity in plants. Exogenous H 2 S recovered Cd-induced growth inhibition in Brassica napus , Arabidopsis , and barley [ 25 – 27 ]. 70 μM NaHS (donor of H 2 S) largely stimulated proliferation of T. thermophila (Fig.…”

Section: Resultsmentioning

confidence: 99%

Comparative transcriptome analysis uncovers roles of hydrogen sulfide for alleviating cadmium toxicity in Tetrahymena thermophila

Tao

et al. 2021

BMC Genomics

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Background Cadmium (Cd) is a nonessential heavy metal with potentially deleterious effects on different organisms. The organisms have evolved sophisticated defense system to alleviate heavy metal toxicity. Hydrogen sulfide (H2S) effectively alleviates heavy metal toxicity in plants and reduces oxidative stress in mammals. However, the function of H2S for alleviating heavy metal toxicity in aquatic organisms remains less clear. Tetrahymena thermophila is an important model organism to evaluate toxic contaminants in an aquatic environment. In this study, the molecular roles of exogenously H2S application were explored by RNA sequencing under Cd stress in T. thermophila. Results The exposure of 30 μM Cd resulted in T. thermophila growth inhibition, cell nigrescence, and malondialdehyde (MDA) content considerably increase. However, exogenous NaHS (donor of H2S, 70 μM) significantly alleviated the Cd-induced toxicity by inhibiting Cd absorbtion, promoting CdS nanoparticles formation and improving antioxidant system. Comparative transcriptome analysis showed that the expression levels of 9152 genes changed under Cd stress (4658 upregulated and 4494 downregulated). However, only 1359 genes were differentially expressed with NaHS treatment under Cd stress (1087 upregulated and 272 downregulated). The functional categories of the differentially expressed genes (DEGs) by gene ontology (GO) revealed that the transcripts involved in the oxidation–reduction process, oxidoreductase activity, glutathione peroxidase activity, and cell redox homeostasis were the considerable enrichments between Cd stress and NaHS treatment under Cd stress. Kyoto Encyclopedia of Genes and Genomes (KEGG) indicated that the carbon metabolism, glutathione metabolism, metabolism of xenobiotics by cytochrome P450, and ABC transporters were significantly differentially expressed components between Cd stress and NaHS treatment under Cd stress in T. thermophila. The relative expression levels of six DEGs were further confirmed through quantitative real-time polymerase chain reaction (qRT-PCR). Conclusion NaHS alleviated Cd stress mainly through inhibiting Cd absorbtion, promoting CdS nanoparticles formation, increasing oxidation resistance, and regulation of transport in free-living unicellular T. thermophila. These findings will expand our understanding for H2S functions in the freshwater protozoa.

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Exogenous hydrogen sulfide reduces cadmium uptake and alleviates cadmium toxicity in barley

Cited by 59 publications

References 36 publications

Hydrogen sulfide (H2S) signaling in plant development and stress responses

Hydrogen sulfide (H2S) signaling in plant development and stress responses

Comparative transcriptome analysis uncovers roles of hydrogen sulfide for alleviating cadmium toxicity in Tetrahymena thermophila

Comparative transcriptome analysis uncovers roles of hydrogen sulfide for alleviating cadmium toxicity in Tetrahymena thermophila

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