Lignin is a crucial polymer in plant cell walls, next in abundance to cellulose, and is vital for wood strength and plant resilience.
In a study, researchers induced tension wood (TW) by bending and found that it had higher levels of coniferyl aldehyde but lower total lignin compared to opposite wood (OW) and normal wood (NW).
Key transcription factors NAC and HD-ZIP were identified as possibly enhancing the production of lignin precursors in TW, while the decreased total lignin levels may relate to lower translation of CAD genes, indicating a need for further research on post-transcriptional effects.