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[PMID]: | 28233204 |
[Au] Autor: | Pan F; Luo S; Shen J; Wang Q; Ye J; Meng Q; Wu Y; Chen B; Cao X; Yang X; Feng Y |
[Ad] Endereço: | MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, People's Republic of China. |
[Ti] Título: | The effects of endophytic bacterium SaMR12 on Sedum alfredii Hance metal ion uptake and the expression of three transporter family genes after cadmium exposure. |
[So] Source: | Environ Sci Pollut Res Int;24(10):9350-9360, 2017 Apr. | [Is] ISSN: | 1614-7499 |
[Cp] País de publicação: | Germany |
[La] Idioma: | eng |
[Ab] Resumo: | A hydroponic experiment was conducted to investigate the effects of an endophytic bacterium SaMR12 on Sedum alfredii Hance metal ion accumulation, chlorophyll concentration, and the expression of three metal transporter families, zinc-regulated transporters, iron-regulated transporter-like protein (ZIP); natural resistance-associated macrophage protein; and heavy metal ATPase (HMA) at different Cd treatment levels. The results showed that at relatively low Cd conditions (≤25 µM), SaMR12 demonstrated a 19.5-27.5% increase in Fe, a 46.7-90.7% increase in Zn, and a 7.9-43.7% increase in Cu content in the shoot and elevated expression of SaIRT1, SaZIP3, SaHMA2, and SaNramp3 in the shoot and SaZIP1, SaHMA2, SaNramp1, and SaNramp3 in the root. At high Cd conditions (100 and 400 µM), SaMR12 demonstrated a 16.4-18.5% increase in leaf chlorophyll concentration, a 18.9-23.2% increase in Fe, and a 15.4-17.5% increase in Mg content in the shoot and elevated expression of SaZIP3, SaNramp6, SaHMA2, and SaHMA3 in the shoot and SaZIP3, SaNarmp1, SaNarmp3, and SaNarmp6 in the root. These results indicated that SaMR12 can elevate essential metal ion uptake and regulate the expression of transport genes to promote plant growth and enhance Cd tolerance and uptake to improve Cd accumulation up to 118-130%. |
[Mh] Termos MeSH primário: |
Cádmio Sedum/metabolismo
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[Mh] Termos MeSH secundário: |
Biodegradação Ambiental Proteínas de Transporte de Cátions Raízes de Plantas/metabolismo Zinco
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[Pt] Tipo de publicação: | JOURNAL ARTICLE |
[Nm] Nome de substância:
| 0 (Cation Transport Proteins); 0 (natural resistance-associated macrophage protein 1); 00BH33GNGH (Cadmium); J41CSQ7QDS (Zinc) |
[Em] Mês de entrada: | 1706 |
[Cu] Atualização por classe: | 171103 |
[Lr] Data última revisão:
| 171103 |
[Sb] Subgrupo de revista: | IM |
[Da] Data de entrada para processamento: | 170225 |
[St] Status: | MEDLINE |
[do] DOI: | 10.1007/s11356-017-8565-9 |
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