A novel bHLH transcription factor PlLHL1 targets PlLAC15 to negatively regulate stem strength by inhibiting syringyl lignin deposition in herbaceous peony

Acknowledgements

This work was supported by National Natural Science Foundation of China (32330091), Forestry Science and Technology Promotion Project of Jiangsu Province [LYKJ[2021]01], Jiangsu Province Agricultural Science and Technology Innovation and Extension Subsidy Project and the College Student Innovation Training Program of Jiangsu Province (202411117028Z).

Author contributions

Z.L., Y.Y., and Y.T. wrote the manuscript. Z.L., Y.Y., S.Z., and M.Z. conducted the experiments. J.T. and D.Z. reviewed the manuscript and supervised this work.

Data availability

Data are contained within the article or Supplementary Data files. The following supporting information can be downloaded at: https://doi.org/10.6084/m9.figshare.28427126.v1

Conflict of interest statement

The authors declare no conflict of interest.

References

[1] Zhao DQ, Luan YT, Xia X. et al. Lignin provides mechanical support to herbaceous peony (Paeonia lactiflora Pall.) stems. Hortic Res. 2020; 7:213

[2] Zhao DQ, Xu C, Luan YT. et al. Silicon enhances stem strength by promoting lignin accumulation in herbaceous peony (Paeonia lactiflora Pall.). Int J Biol Macromol. 2021; 190:769-79

[3] Zhao DQ, Luan YT, Shi WB. et al. Melatonin enhances stem strength by increasing lignin content and secondary cell wall thickness in herbaceous peony. JExp Bot. 2022; 73:5974-91

[4] Tang YH, Lu LL, Sheng ZP. et al. An R2R3-MYB network modu-lates stem strength by regulating lignin biosynthesis and sec-ondary cell wall thickening in herbaceous peony. Plant J. 2023; 113: 1237-58

[5] Yin YH, Zuo SQ, Zhao MH. et al. PlLAC15 facilitates syringyl lignin deposition to enhance stem strength in herbaceous peony. Agriculture. 2024; 14:1609