globalchange  > 气候变化与战略
DOI: 10.1073/pnas.1705833114
论文题名:
Auxin minimum triggers the developmental switch from cell division to cell differentiation in the Arabidopsis root
作者: Di Mambro R.; De Ruvo M.; Pacifici E.; Salvi E.; Sozzani R.; Benfey P.N.; Busch W.; Novak O.; Ljung K.; Di Paola L.; Marée A.F.M.; Costantino P.; Grieneisen V.A.; Sabatini S.
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:36
起始页码: E7641
结束页码: E7649
语种: 英语
英文关键词: Cell differentiation ; Computational modeling ; Plant hormones ; Root meristem
Scopus关键词: Arabidopsis protein ; auxin ; cytokinin ; Arabidopsis protein ; cytokinin ; indoleacetic acid derivative ; phytohormone ; Arabidopsis thaliana ; Article ; auxin transport ; cell differentiation ; cell division ; endodermis ; meristem ; molecular genetics ; nonhuman ; plant root ; plant root cap ; priority journal ; protein degradation ; regulatory mechanism ; root development ; root growth ; root length ; root system ; shoot ; steady state ; transcription initiation ; zonation ; Arabidopsis ; cell differentiation ; cell division ; gene expression regulation ; metabolism ; physiology ; plant root ; signal transduction ; transport at the cellular level ; Arabidopsis ; Arabidopsis Proteins ; Biological Transport ; Cell Differentiation ; Cell Division ; Cytokinins ; Gene Expression Regulation, Plant ; Indoleacetic Acids ; Meristem ; Plant Growth Regulators ; Plant Roots ; Signal Transduction
英文摘要: In multicellular organisms, a stringent control of the transition between cell division and differentiation is crucial for correct tissue and organ development. In the Arabidopsis root, the boundary between dividing and differentiating cells is positioned by the antagonistic interaction of the hormones auxin and cytokinin. Cytokinin affects polar auxin transport, but how this impacts the positional information required to establish this tissue boundary, is still unknown. By combining computational modeling with molecular genetics, we show that boundary formation is dependent on cytokinin’s control on auxin polar transport and degradation. The regulation of both processes shapes the auxin profile in a well-defined auxin minimum. This auxin minimum positions the boundary between dividing and differentiating cells, acting as a trigger for this developmental transition, thus controlling meristem size. © 2017, National Academy of Sciences. All rights reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/163800
Appears in Collections:气候变化与战略

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作者单位: Di Mambro, R., Dipartimento di Biologia e Biotecnologie, Laboratory of Functional Genomics and Proteomics of Model Systems, Università di Roma, Sapienza, Rome, 00185, Italy, Dipartimento di Biologia, Università di Pisa, Pisa, 56126, Italy; De Ruvo, M., Dipartimento di Biologia e Biotecnologie, Laboratory of Functional Genomics and Proteomics of Model Systems, Università di Roma, Sapienza, Rome, 00185, Italy, Unit of Chemical-Physics Fundamentals in Chemical Engineering, Department of Engineering, Università Campus Bio-Medico di Roma, Rome, 00128, Italy, Computational and Systems Biology, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, United Kingdom; Pacifici, E., Dipartimento di Biologia e Biotecnologie, Laboratory of Functional Genomics and Proteomics of Model Systems, Università di Roma, Sapienza, Rome, 00185, Italy; Salvi, E., Dipartimento di Biologia e Biotecnologie, Laboratory of Functional Genomics and Proteomics of Model Systems, Università di Roma, Sapienza, Rome, 00185, Italy; Sozzani, R., Department of Plant and Microbial Biology, North Carolina State University, Raleigh, NC 27695, United States; Benfey, P.N., Department of Biology, Duke University, Durham, NC 27708, United States, Howard Hughes Medical Institute, Duke University, Durham, NC 27708, United States; Busch, W., Gregor Mendel Institute, Austrian Academy of Sciences, Vienna Biocenter, Vienna, 1030, Austria; Novak, O., Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Umeå, SE-901 83, Sweden; Ljung, K., Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Umeå, SE-901 83, Sweden; Di Paola, L., Unit of Chemical-Physics Fundamentals in Chemical Engineering, Department of Engineering, Università Campus Bio-Medico di Roma, Rome, 00128, Italy; Marée, A.F.M., Computational and Systems Biology, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, United Kingdom; Costantino, P., Dipartimento di Biologia e Biotecnologie, Laboratory of Functional Genomics and Proteomics of Model Systems, Università di Roma, Sapienza, Rome, 00185, Italy; Grieneisen, V.A., Computational and Systems Biology, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, United Kingdom; Sabatini, S., Dipartimento di Biologia e Biotecnologie, Laboratory of Functional Genomics and Proteomics of Model Systems, Università di Roma, Sapienza, Rome, 00185, Italy, Istituto Pasteur-Fondazione Cenci Bolognetti, Rome, 00100, Italy

Recommended Citation:
Di Mambro R.,De Ruvo M.,Pacifici E.,et al. Auxin minimum triggers the developmental switch from cell division to cell differentiation in the Arabidopsis root[J]. Proceedings of the National Academy of Sciences of the United States of America,2017-01-01,114(36)
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