globalchange  > 气候变化与战略
DOI: 10.1073/pnas.1709171114
论文题名:
Elevated auxin biosynthesis and transport underlie high vein density in C4 leaves
作者: Huang C.-F.; Yu C.-P.; Wu Y.-H.; Lu M.-Y.J.; Tu S.-L.; Wu S.-H.; Shiu S.-H.; Ku M.S.B.; Li W.-H.
刊名: Proceedings of the National Academy of Sciences of the United States of America
ISSN: 0027-8424
出版年: 2017
卷: 114, 期:33
起始页码: E6884
结束页码: E6891
语种: 英语
英文关键词: Auxin biosynthesis ; Auxin transport ; C4 plants ; Vein density
Scopus关键词: auxin ; transcriptome ; carrier protein ; indoleacetic acid derivative ; plant protein ; Arabidopsis thaliana ; Article ; auxin transport ; C3 plant ; C4 plant ; controlled study ; down regulation ; gene expression ; leaf development ; leaf vein ; maize ; nonhuman ; plant gene ; plant leaf ; primordium ; priority journal ; protein synthesis ; upregulation ; Arabidopsis ; biosynthesis ; classification ; gene expression regulation ; genetics ; growth, development and aging ; metabolism ; mutation ; plant ; plant development ; plant leaf ; species difference ; transport at the cellular level ; Arabidopsis ; Biological Transport ; Biosynthetic Pathways ; Gene Expression Regulation, Developmental ; Gene Expression Regulation, Plant ; Indoleacetic Acids ; Membrane Transport Proteins ; Mutation ; Plant Development ; Plant Leaves ; Plant Proteins ; Plants ; Species Specificity ; Zea mays
英文摘要: High vein density, a distinctive trait of C4 leaves, is central to both C3-to-C4 evolution and conversion of C3 to C4-like crops. We tested the hypothesis that high vein density in C4 leaves is due to elevated auxin biosynthesis and transport in developing leaves. Up-regulation of genes in auxin biosynthesis pathways and higher auxin content were found in developing C4 leaves compared with developing C3 leaves. The same observation held for maize foliar (C4) and husk (C3) leaf primordia. Moreover, auxin content and vein density were increased in loss-of-function mutants of Arabidopsis MYC2, a suppressor of auxin biosynthesis. Treatment with an auxin biosynthesis inhibitor or an auxin transport inhibitor led to much fewer veins in new leaves. Finally, both Arabidopsis thaliana auxin efflux transporter pin1 and influx transporter lax2 mutants showed reduced vein numbers. Thus, development of high leaf vein density requires elevated auxin biosynthesis and transport. © 2017, National Academy of Sciences. All rights reserved.
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被引频次[WOS]:27   [查看WOS记录]     [查看WOS中相关记录]
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/163805
Appears in Collections:气候变化与战略

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作者单位: Huang, C.-F., Institute of Molecular and Cellular Biology, National Tsing Hua University, Hsinchu, 300, Taiwan, Biodiversity Research Center, Academia Sinica, Taipei, 115, Taiwan; Yu, C.-P., Biodiversity Research Center, Academia Sinica, Taipei, 115, Taiwan; Wu, Y.-H., Biodiversity Research Center, Academia Sinica, Taipei, 115, Taiwan; Lu, M.-Y.J., Biodiversity Research Center, Academia Sinica, Taipei, 115, Taiwan; Tu, S.-L., Institute of Plant and Microbial Biology, Academia Sinica, Taipei, 115, Taiwan; Wu, S.-H., Institute of Plant and Microbial Biology, Academia Sinica, Taipei, 115, Taiwan; Shiu, S.-H., Department of Plant Biology, Michigan State University, East Lansing, MI 48824, United States; Ku, M.S.B., Department of Bioagricultural Science, National Chiayi University, Chiayi, 600, Taiwan, School of Biological Sciences, Washington State University, Pullman, WA 99164, United States; Li, W.-H., Institute of Molecular and Cellular Biology, National Tsing Hua University, Hsinchu, 300, Taiwan, Biodiversity Research Center, Academia Sinica, Taipei, 115, Taiwan, Department of Ecology and Evolution, University of Chicago, Chicago, IL 60637, United States

Recommended Citation:
Huang C.-F.,Yu C.-P.,Wu Y.-H.,et al. Elevated auxin biosynthesis and transport underlie high vein density in C4 leaves[J]. Proceedings of the National Academy of Sciences of the United States of America,2017-01-01,114(33)
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