Oryza sativa FER-LIKE FE DEFICIENCY-INDUCED TRANSCRIPTION FACTOR (OsFIT/OsbHLH156) interacts with OsIRO2 to regulate iron homeostasis | |
Liang Gang1; Zhang Huimin; Li Yang1; Pu Mengna1; Yang Yujie1,3; Li Chenyang1,3; Lu Chengkai1; Xu Peng1,3; Yu Diqiu2 | |
刊名 | JOURNAL OF INTEGRATIVE PLANT BIOLOGY |
2020 | |
卷号 | 62期号:5页码:668-689 |
关键词 | GENE-EXPRESSION ARABIDOPSIS TRANSPORTER PLANTS RICE FIT ACQUISITION RESPONSES SYSTEM ACID |
ISSN号 | 1672-9072 |
DOI | 10.1111/jipb.12933 |
英文摘要 | Iron (Fe) is indispensable for the growth and development of plants. It is well known that FER-LIKE FE DEFICIENCY-INDUCED TRANSCRIPTION FACTOR (FIT) is a key regulator of Fe uptake in Arabidopsis. Here, we identify the Oryza sativa FIT (also known as OsbHLH156) as the interacting partner of IRON-RELATED BHLH TRANSCRIPTION FACTOR 2 (OsIRO2) that is critical for regulating Fe uptake. The OsIRO2 protein is localized in the cytoplasm and nucleus, but OsFIT facilitates the accumulation of OsIRO2 in the nucleus. Loss-of-function mutations of OsFIT result in decreased Fe accumulation, severe Fe-deficiency symptoms, and disrupted expression of Fe-uptake genes. In contrast, OsFIT overexpression promotes Fe accumulation and the expression of Fe-uptake genes. Genetic analyses indicate that OsFIT and OsIRO2 function in the same genetic node. Further analyses suggest that OsFIT and OsIRO2 form a functional transcription activation complex to initiate the expression of Fe-uptake genes. Our findings provide a mechanism understanding of how rice maintains Fe homeostasis. |
学科主题 | Biochemistry & Molecular Biology ; Plant Sciences |
语种 | 英语 |
WOS记录号 | WOS:000529695800010 |
内容类型 | 期刊论文 |
源URL | [http://ir.xtbg.org.cn/handle/353005/11679] |
专题 | 西双版纳热带植物园_植物分子生物学研究组 |
作者单位 | 1.Chinese Acad Sci, CAS Key Lab Trop Plant Resources & Sustainable Us, Xishuangbanna Trop Bot Garden, Innovat Acad Seed Design, Kunming 650223, Yunnan, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Ctr Econ Bot, Core Bot Gardens, Menglun 666303, Mengla, Peoples R China 4.Yunnan Univ, State Key Lab Conservat & Utilizat Bioresources Y, Kunming 650091, Yunnan, Peoples R China |
推荐引用方式 GB/T 7714 | Liang Gang,Zhang Huimin,Li Yang,et al. Oryza sativa FER-LIKE FE DEFICIENCY-INDUCED TRANSCRIPTION FACTOR (OsFIT/OsbHLH156) interacts with OsIRO2 to regulate iron homeostasis[J]. JOURNAL OF INTEGRATIVE PLANT BIOLOGY,2020,62(5):668-689. |
APA | Liang Gang.,Zhang Huimin.,Li Yang.,Pu Mengna.,Yang Yujie.,...&Yu Diqiu.(2020).Oryza sativa FER-LIKE FE DEFICIENCY-INDUCED TRANSCRIPTION FACTOR (OsFIT/OsbHLH156) interacts with OsIRO2 to regulate iron homeostasis.JOURNAL OF INTEGRATIVE PLANT BIOLOGY,62(5),668-689. |
MLA | Liang Gang,et al."Oryza sativa FER-LIKE FE DEFICIENCY-INDUCED TRANSCRIPTION FACTOR (OsFIT/OsbHLH156) interacts with OsIRO2 to regulate iron homeostasis".JOURNAL OF INTEGRATIVE PLANT BIOLOGY 62.5(2020):668-689. |
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