Journal
CURRENT OPINION IN PLANT BIOLOGY
Volume 23, Issue -, Pages 83-90Publisher
CURRENT BIOLOGY LTD
DOI: 10.1016/j.pbi.2014.11.006
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Funding
- ANR Project NoStressWall [ANR-12-ADAP-0011]
- ANR Project BRAVO [ANR-14-CE19-0012-01]
- INRA Program ALICE
- China Scholarship Council
- Agence Nationale de la Recherche (ANR) [ANR-12-ADAP-0011, ANR-14-CE19-0012] Funding Source: Agence Nationale de la Recherche (ANR)
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Lignins are cell wall phenolic polymers resulting from monolignol radical coupling. They have characteristically high diversity in their structures which is a direct consequence of the versatile character of the lignification mechanisms discussed in this review. We will relate the latest discoveries regarding the main participants involved in lignin deposition in various tissues. Lignification is often described as a cell autonomous event occurring progressively in all cell wall layers during lignifying cell life and stopping with the cell death. However, recent data combined to old data from studies of tree lignification and zinnia cultures challenged these entrenched views and showed that the lignification process is cell-type dependent and can involve neighboring cells. Therefore, we consider recent data on cell-autonomous and non-cell autonomous lignification processes. We conclude that the role of lignins still need to be assessed during plant development and that control of polymerization/lignin deposition remains elusive and need to be investigated.
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