TRM4 is essential for cellulose deposition in Arabidopsis seed mucilage by maintaining cortical microtubule organization and interacting with CESA3

© 2018 The Authors. New Phytologist © 2018 New Phytologist Trust.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - 221(2019), 2 vom: 15. Jan., Seite 881-895
1. Verfasser: Yang, Bo (VerfasserIn)
Weitere Verfasser: Voiniciuc, Cătălin, Fu, Lanbao, Dieluweit, Sabine, Klose, Holger, Usadel, Björn
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2019
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Arabidopsis TONNEAU1 recruiting motif (TRM) cellulose deposition cellulose synthase (CESA) microtubule organization mucilage AT1G74160 protein, Arabidopsis Arabidopsis Proteins mehr... Microtubule-Associated Proteins Plant Mucilage Pectins 89NA02M4RX Cellulose 9004-34-6 At5g05170 protein, Arabidopsis EC 2.4.1.- Glucosyltransferases
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520 |a The differentiation of the seed coat epidermal (SCE) cells in Arabidopsis thaliana leads to the production of a large amount of pectin-rich mucilage and a thick cellulosic secondary cell wall. The mechanisms by which cortical microtubules are involved in the formation of these pectinaceous and cellulosic cell walls are still largely unknown. Using a reverse genetic approach, we found that TONNEAU1 (TON1) recruiting motif 4 (TRM4) is implicated in cortical microtubule organization in SCE cells, and functions as a novel player in the establishment of mucilage structure. TRM4 is preferentially accumulated in the SCE cells at the stage of mucilage biosynthesis. The loss of TRM4 results in compact seed mucilage capsules, aberrant mucilage cellulosic structure, short cellulosic rays and disorganized cellulose microfibrils in mucilage. The defects could be rescued by transgene complementation of trm4 alleles. Probably, this is a consequence of a disrupted organization of cortical microtubules, observed using fluorescently tagged tubulin proteins in trm4 SCE cells. Furthermore, TRM4 proteins co-aligned with microtubules and interacted directly with CELLULOSE SYNTHASE 3 in two independent assays. Together, the results indicate that TRM4 is essential for microtubule array organization and therefore correct cellulose orientation in the SCE cells, as well as the establishment of the subsequent mucilage architecture 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Arabidopsis 
650 4 |a TONNEAU1 recruiting motif (TRM) 
650 4 |a cellulose deposition 
650 4 |a cellulose synthase (CESA) 
650 4 |a microtubule organization 
650 4 |a mucilage 
650 7 |a AT1G74160 protein, Arabidopsis  |2 NLM 
650 7 |a Arabidopsis Proteins  |2 NLM 
650 7 |a Microtubule-Associated Proteins  |2 NLM 
650 7 |a Plant Mucilage  |2 NLM 
650 7 |a Pectins  |2 NLM 
650 7 |a 89NA02M4RX  |2 NLM 
650 7 |a Cellulose  |2 NLM 
650 7 |a 9004-34-6  |2 NLM 
650 7 |a At5g05170 protein, Arabidopsis  |2 NLM 
650 7 |a EC 2.4.1.-  |2 NLM 
650 7 |a Glucosyltransferases  |2 NLM 
650 7 |a EC 2.4.1.-  |2 NLM 
700 1 |a Voiniciuc, Cătălin  |e verfasserin  |4 aut 
700 1 |a Fu, Lanbao  |e verfasserin  |4 aut 
700 1 |a Dieluweit, Sabine  |e verfasserin  |4 aut 
700 1 |a Klose, Holger  |e verfasserin  |4 aut 
700 1 |a Usadel, Björn  |e verfasserin  |4 aut 
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