Two complementary mechanisms underpin cell wall patterning during xylem vessel development

R Schneider; L Tang; ER Lampugnani; S Barkwill; R Lathe; Y Zhang; HE McFarlane; E Pesquet; T Niittyla; SD Mansfield; Y Zhou; S Persson

Journal article

Two complementary mechanisms underpin cell wall patterning during xylem vessel development

R Schneider, L Tang, ER Lampugnani, S Barkwill, R Lathe, Y Zhang, HE McFarlane, E Pesquet, T Niittyla, SD Mansfield, Y Zhou, S Persson

Plant Cell | OXFORD UNIV PRESS INC | Published : 2017

DOI: 10.1105/tpc.17.00309

Abstract

The evolution of the plant vasculature was essential for the emergence of terrestrial life. Xylem vessels are solute-transporting elements in the vasculature that possess secondary wall thickenings deposited in intricate patterns. Evenly dispersed microtubule (MT) bands support the formation of these wall thickenings, but how the MTs direct cell wall synthesis during this process remains largely unknown. Cellulose is the major secondary wall constituent and is synthesized by plasma membrane-localized cellulose synthases (CesAs) whose catalytic activity propels them through the membrane. We show that the protein CELLULOSE SYNTHASE INTERACTING1 (CSI1)/POM2 is necessary to align the secondary w..

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University of Melbourne Researchers

Edwin R. Lampugnani Author

Staffan Persson Author

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Grants

Awarded by Natural Sciences and Engineering Research Council of Canada

Funding Acknowledgements

S.P. was funded by a R@MAP Professorship at University of Melbourne. This work was in part supported by an ARC Discovery grant (DP150103495), a Future Fellowship grant (FT160100218), and the National Natural Science Foundation of China (Grant 31530051). S.D.M. acknowledges funding from the NSERC Discovery program. We thank Taku Demura for sharing the VND7-line. The P19 plasmid was a kind gift from David Baulcombe.