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Plos Biology : Alignment Between Pin1 Polarity and Microtubule Orientation in the Shoot Apical Meristem Reveals a Tight Coupling Between Morphogenesis and Auxin Transport, Volume 8

By Leyser, Ottoline

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Book Id: WPLBN0003940769
Format Type: PDF eBook :
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Reproduction Date: 2015

Title: Plos Biology : Alignment Between Pin1 Polarity and Microtubule Orientation in the Shoot Apical Meristem Reveals a Tight Coupling Between Morphogenesis and Auxin Transport, Volume 8  
Author: Leyser, Ottoline
Volume: Volume 8
Language: English
Subject: Journals, Science, Biology
Collections: Periodicals: Journal and Magazine Collection, PLoS Biology
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Publisher: Plos

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Leyser, O. (n.d.). Plos Biology : Alignment Between Pin1 Polarity and Microtubule Orientation in the Shoot Apical Meristem Reveals a Tight Coupling Between Morphogenesis and Auxin Transport, Volume 8. Retrieved from http://netlibrary.net/


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Description : Morphogenesis during multicellular development is regulated by intercellular signaling molecules as well as by the mechanical properties of individual cells. In particular, normal patterns of organogenesis in plants require coordination between growth direction and growth magnitude. How this is achieved remains unclear. Here we show that in Arabidopsis thaliana, auxin patterning and cellular growth are linked through a correlated pattern of auxin efflux carrier localization and cortical microtubule orientation. Our experiments reveal that both PIN1 localization and microtubule array orientation are likely to respond to a shared upstream regulator that appears to be biomechanical in nature. Lastly, through mathematical modeling we show that such a biophysical coupling could mediate the feedback loop between auxin and its transport that underlies plant phyllotaxis.

 

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