Comparative transcriptome combined with morpho-physiological analyses revealed key factors for differential cadmium accumulation in two contrasting sweet sorghum genotypes
文献类型：期刊论文
| 作者 | Feng, Juanjuan; Jia, Weitao; Lv, Sulian; Bao, Hexigeduleng4; Miao, Fangfang; Zhang, Xuan; Wang, Jinhui; Li, Jihong2,3; Li, Dongsheng2,3; Zhu, Cheng4 |
| 刊名 | PLANT BIOTECHNOLOGY JOURNAL
 |
| 出版日期 | 2018 |
| 卷号 | 16期号:2页码:558-571 |
| 关键词 | cadmium cell wall endodermis sweet sorghum transcriptome transporter |
| ISSN号 | 1467-7644 |
| DOI | 10.1111/pbi.12795 |
| 文献子类 | Article |
| 英文摘要 | Cadmium (Cd) is a widespread soil contaminant threatening human health. As an ideal energy plant, sweet sorghum (Sorghum bicolor (L.) Moench) has great potential in phytoremediation of Cd-polluted soils, although the molecular mechanisms are largely unknown. In this study, key factors responsible for differential Cd accumulation between two contrasting sweet sorghum genotypes (high-Cd accumulation one H18, and low-Cd accumulation one L69) were investigated. H18 exhibited a much higher ability of Cd uptake and translocation than L69. Furthermore, Cd uptake through symplasmic pathway and Cd concentrations in xylem sap were both higher in H18 than those in L69. Root anatomy observation found the endodermal apoplasmic barriers were much stronger in L69, which may restrict the Cd loading into xylem. The molecular mechanisms underlying these morpho-physiological traits were further dissected by comparative transcriptome analysis. Many genes involved in cell wall modification and heavy metal transport were found to be Cd-responsive DEGs and/or DEGs between these two genotypes. KEGG pathway analysis found phenylpropanoid biosynthesis pathway was over-represented, indicating this pathway may play important roles in differential Cd accumulation between two genotypes. Based on these results, a schematic representation of main processes involved in differential Cd uptake and translocation in H18 and L69 is proposed, which suggests that higher Cd accumulation in H18 depends on a multilevel coordination of efficient Cd uptake and transport, including efficient root uptake and xylem loading, less root cell wall binding, and weaker endodermal apoplasmic barriers. |
| 学科主题 | Biotechnology & Applied Microbiology ; Plant Sciences |
| 出版地 | HOBOKEN |
| 电子版国际标准刊号 | 1467-7652 |
| WOS关键词 | METAL HYPERACCUMULATION ; PHLOEM-SAP ; XYLEM SAP ; CELL-WALL ; THLASPI-CAERULESCENS ; CHEMICAL-COMPOSITION ; NONPROTEIN THIOLS ; TRANSPORT ; EXPRESSION ; TOLERANCE |
| 语种 | 英语 |
| WOS记录号 | WOS:000423542700019 |
| 出版者 | WILEY |
| 资助机构 | National Key Research and Development Program of China [2017YFD0801105] ; Science and Technology Program for Public Wellbeing [2013GS460202-X] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/20496]  |
| 专题 | 中科院植物分子生理学重点实验室 |
| 作者单位 | 1.Tsinghua Univ, Beijing Engn Res Ctr Biofuels, Beijing, Peoples R China 2.Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing, Peoples R China 3.China Jiliang Univ, Coll Life Sci, Hangzhou, Zhejiang, Peoples R China 4.Chinese Acad Sci, Inst Bot, Key Lab Plant Mol Physiol, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Feng, Juanjuan,Jia, Weitao,Lv, Sulian,et al. Comparative transcriptome combined with morpho-physiological analyses revealed key factors for differential cadmium accumulation in two contrasting sweet sorghum genotypes[J]. PLANT BIOTECHNOLOGY JOURNAL,2018,16(2):558-571. |
| APA | Feng, Juanjuan.,Jia, Weitao.,Lv, Sulian.,Bao, Hexigeduleng.,Miao, Fangfang.,...&Li, Yinxin.(2018).Comparative transcriptome combined with morpho-physiological analyses revealed key factors for differential cadmium accumulation in two contrasting sweet sorghum genotypes.PLANT BIOTECHNOLOGY JOURNAL,16(2),558-571. |
| MLA | Feng, Juanjuan,et al."Comparative transcriptome combined with morpho-physiological analyses revealed key factors for differential cadmium accumulation in two contrasting sweet sorghum genotypes".PLANT BIOTECHNOLOGY JOURNAL 16.2(2018):558-571. |
入库方式： OAI收割
来源：植物研究所
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