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bHLH104 confers tolerance to cadmium stress in Arabidopsis thaliana
Yao, Xiani; Cai, Yuerong; Yu, Diqiu; Liang, Gang; Yu, DQ
2018
Source PublicationJOURNAL OF INTEGRATIVE PLANT BIOLOGY
ISSN1672-9072
Volume60Issue:8Pages:691-702
AbstractCd is a non-essential heavy metal that is toxic to both plants and animals. Here, we reveal that the transcription factor bHLH104 positively regulates Cd tolerance in Arabidopsis thaliana. We show that Fe deficiency-responsive genes were induced by Cd treatment, and that their upregulation was suppressed in bhlh104 loss-of-function mutants, but enhanced upon overexpression of bHLH104. Correspondingly, the bhlh104 mutants displayed sensitivity to Cd stress, whereas plants overexpressing bHLH104 exhibited enhanced Cd tolerance. Further analysis suggested that bHLH104 positively regulates four heavy metal detoxification-associated genes, IREG2, MTP3, HMA3 and NAS4, which play roles in Cd sequestration and tolerance. The bHLH104 overexpression plants accumulated high levels of Cd in the root but low levels of Cd in the shoot, which might contribute to the Cd tolerance in those lines. The present study thus points to bHLH104 as a potentially useful tool for genetic engineering of plants with enhanced Cd tolerance.
Department其他
Subject AreaBiochemistry & Molecular Biology ; Plant Sciences
Language英语
Document Type期刊论文
Identifierhttp://ir.xtbg.org.cn/handle/353005/10994
Collection植物分子生物学研究组
Corresponding AuthorYu, DQ
Recommended Citation
GB/T 7714
Yao, Xiani,Cai, Yuerong,Yu, Diqiu,et al. bHLH104 confers tolerance to cadmium stress in Arabidopsis thaliana[J]. JOURNAL OF INTEGRATIVE PLANT BIOLOGY,2018,60(8):691-702.
APA Yao, Xiani,Cai, Yuerong,Yu, Diqiu,Liang, Gang,&Yu, DQ.(2018).bHLH104 confers tolerance to cadmium stress in Arabidopsis thaliana.JOURNAL OF INTEGRATIVE PLANT BIOLOGY,60(8),691-702.
MLA Yao, Xiani,et al."bHLH104 confers tolerance to cadmium stress in Arabidopsis thaliana".JOURNAL OF INTEGRATIVE PLANT BIOLOGY 60.8(2018):691-702.
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