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Sodium Hydrosulfide Mitigates Cadmium Toxicity by Promoting Cadmium Retention and Inhibiting Its Translocation from Roots to Shoots in Brassica napus.
J Agric Food Chem 2019; 67(1):433-440JA

Abstract

The association between hydrogen sulfide (H2S) and cell wall composition with regard to the mitigation of cadmium (Cd) toxicity in Brassica napus L. was investigated. Cd caused growth retardation, leaf chlorosis, and decreased endogenous H2S content in Brassica napus roots. Stimulating l-cysteine desulfhydrase (LCD)-mediated H2S production with H2S releaser (NaHS) markedly improved plant growth, reduced Cd content in stems and leaves, and rescued Cd-induced chlorosis. Furthermore, increased Cd retention was observed in root cell walls, indicating that NaHS reduced Cd movement from the roots to upper-plant parts. Exogenous NaHS also significantly increased the content of pectin and the activity of pectin methylesterase in cell walls of roots, thereby increasing Cd retention in pectin fractions. However, intensification of H2S barely affected hemicellulose content under Cd stress. Intensified H2S signal, therefore, alleviates Cd toxicity in Brassica napus by increasing pectin content and its demethylation, increasing Cd fixation in cell walls, and reducing root-to-shoot Cd translocation.

Authors+Show Affiliations

School of Agronomy , Anhui Agricultural University , Hefei 230036 , People's Republic of China.School of Agronomy , Anhui Agricultural University , Hefei 230036 , People's Republic of China.School of Agronomy , Anhui Agricultural University , Hefei 230036 , People's Republic of China.School of Agronomy , Anhui Agricultural University , Hefei 230036 , People's Republic of China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30569699

Citation

Yu, Yan, et al. "Sodium Hydrosulfide Mitigates Cadmium Toxicity By Promoting Cadmium Retention and Inhibiting Its Translocation From Roots to Shoots in Brassica Napus." Journal of Agricultural and Food Chemistry, vol. 67, no. 1, 2019, pp. 433-440.
Yu Y, Zhou X, Zhu Z, et al. Sodium Hydrosulfide Mitigates Cadmium Toxicity by Promoting Cadmium Retention and Inhibiting Its Translocation from Roots to Shoots in Brassica napus. J Agric Food Chem. 2019;67(1):433-440.
Yu, Y., Zhou, X., Zhu, Z., & Zhou, K. (2019). Sodium Hydrosulfide Mitigates Cadmium Toxicity by Promoting Cadmium Retention and Inhibiting Its Translocation from Roots to Shoots in Brassica napus. Journal of Agricultural and Food Chemistry, 67(1), pp. 433-440. doi:10.1021/acs.jafc.8b04622.
Yu Y, et al. Sodium Hydrosulfide Mitigates Cadmium Toxicity By Promoting Cadmium Retention and Inhibiting Its Translocation From Roots to Shoots in Brassica Napus. J Agric Food Chem. 2019 Jan 9;67(1):433-440. PubMed PMID: 30569699.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Sodium Hydrosulfide Mitigates Cadmium Toxicity by Promoting Cadmium Retention and Inhibiting Its Translocation from Roots to Shoots in Brassica napus. AU - Yu,Yan, AU - Zhou,Xiangyu, AU - Zhu,Zonghe, AU - Zhou,Kejin, Y1 - 2018/12/20/ PY - 2018/12/21/pubmed PY - 2019/5/7/medline PY - 2018/12/21/entrez KW - PME KW - cadmium toxicity KW - cell wall KW - hydrogen sulfide KW - oilseed rape KW - pectin SP - 433 EP - 440 JF - Journal of agricultural and food chemistry JO - J. Agric. Food Chem. VL - 67 IS - 1 N2 - The association between hydrogen sulfide (H2S) and cell wall composition with regard to the mitigation of cadmium (Cd) toxicity in Brassica napus L. was investigated. Cd caused growth retardation, leaf chlorosis, and decreased endogenous H2S content in Brassica napus roots. Stimulating l-cysteine desulfhydrase (LCD)-mediated H2S production with H2S releaser (NaHS) markedly improved plant growth, reduced Cd content in stems and leaves, and rescued Cd-induced chlorosis. Furthermore, increased Cd retention was observed in root cell walls, indicating that NaHS reduced Cd movement from the roots to upper-plant parts. Exogenous NaHS also significantly increased the content of pectin and the activity of pectin methylesterase in cell walls of roots, thereby increasing Cd retention in pectin fractions. However, intensification of H2S barely affected hemicellulose content under Cd stress. Intensified H2S signal, therefore, alleviates Cd toxicity in Brassica napus by increasing pectin content and its demethylation, increasing Cd fixation in cell walls, and reducing root-to-shoot Cd translocation. SN - 1520-5118 UR - https://www.unboundmedicine.com/medline/citation/30569699/Sodium_Hydrosulfide_Mitigates_Cadmium_Toxicity_by_Promoting_Cadmium_Retention_and_Inhibiting_Its_Translocation_from_Roots_to_Shoots_in_Brassica_napus L2 - https://dx.doi.org/10.1021/acs.jafc.8b04622 DB - PRIME DP - Unbound Medicine ER -