Effects of exogenous glutathione on nitrogen metabolism and cadmium accumulation in Medicago sativa...
Effects of exogenous glutathione on nitrogen metabolism and cadmium accumulation in Medicago sativa under cadmium stress
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Author / Creator
Li, Hang , Li Zuran , Li, Bo , Chen, Jianjun , He, Yongmei and Yang, Shu
Publisher
Tianjin: Journal of Agricultural Resources and Environment (JARE)
Journal title
Language
Chinese
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Tianjin: Journal of Agricultural Resources and Environment (JARE)
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为研究镉（Cd）胁迫下外源谷胱甘肽（GSH）对紫花苜蓿（Medicago sativa）氮代谢及Cd累积特征的影响，以4种紫花苜蓿为植物材料，设置对照、Cd处理和混合处理（Cd+GSH）开展水培试验。结果表明，Cd胁迫影响紫花苜蓿氮代谢，谷氨酸合成酶活性较对照处理最高降低43.79%。Cd胁迫下喷施GSH后，总氮、氮代谢关键酶活性、游离氨基酸和可溶性蛋白较Cd处理均有不同程度地变化，其中谷氨酸合成酶活性较Cd处理最高增加79.05%。外源GSH影响紫花苜蓿体内Cd的化学形态与亚细胞分布：施加GSH后盐酸提取态占比较Cd处理最高增加14.81个百分点；外源GSH处理下液泡中的Cd含量占比较Cd处理最高上升11.91个百分点； GSH处理还能显著提高紫花苜蓿植物螯合肽（PCs）含量，有效阻止Cd...
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Effects of exogenous glutathione on nitrogen metabolism and cadmium accumulation in Medicago sativa under cadmium stress
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TN_cdi_proquest_journals_2807667932
Permalink
https://devfeature-collection.sl.nsw.gov.au/record/TN_cdi_proquest_journals_2807667932
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ISSN
2095-6819
E-ISSN
2095-6819
DOI
10.13254/j.jare.2022.0108
