Reciprocal cross-regulation of VND and SND multigene TF families for wood formation in Populus trichocarpa

Proceedings of the National Academy of Sciences of the United States of America
Ying-Chung LinVincent L Chiang

Abstract

Secondary cell wall (SCW) biosynthesis is the biological process that generates wood, an important renewable feedstock for materials and energy. NAC domain transcription factors, particularly Vascular-Related NAC-Domain (VND) and Secondary Wall-Associated NAC Domain (SND) proteins, are known to regulate SCW differentiation. The regulation of VND and SND is important to maintain homeostasis for plants to avoid abnormal growth and development. We previously identified a splice variant, PtrSND1-A2 IR , derived from PtrSND1-A2 as a dominant-negative regulator, which suppresses the transactivation of all PtrSND1 family members. PtrSND1-A2IR also suppresses the self-activation of the PtrSND1 family members except for its cognate transcription factor, PtrSND1-A2, suggesting the existence of an unknown factor needed to regulate PtrSND1-A2 Here, a splice variant, PtrVND6-C1 IR , derived from PtrVND6-C1 was discovered that suppresses the protein functions of all PtrVND6 family members. PtrVND6-C1IR also suppresses the expression of all PtrSND1 members, including PtrSND1-A2, demonstrating that PtrVND6-C1IR is the previously unidentified regulator of PtrSND1-A2 We also found that PtrVND6-C1IR cannot suppress the expression of its cognate...Continue Reading

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Citations

Jun 27, 2020·Tree Physiology·Mo-Xian ChenFu-Yuan Zhu
Apr 20, 2018·Frontiers in Plant Science·Xiaolan Rao, Richard A Dixon
Jan 10, 2020·BMC Plant Biology·Wenjing YaoTingbo Jiang
Jun 18, 2020·Frontiers in Plant Science·Lei ZhangJianjun Hu
Sep 22, 2019·International Journal of Molecular Sciences·Libert B TonfackEshchar Mizrachi
Oct 28, 2019·Frontiers in Plant Science·Anna FurchesDaniel Jacobson
Aug 3, 2019·Trends in Plant Science·Marc BehrMarie Baucher
Dec 18, 2018·Current Opinion in Biotechnology·Jack P WangVincent L Chiang
Apr 2, 2021·Plant Physiology·Baoguang LiuJack P Wang
Jun 22, 2021·Frontiers in Plant Science·Ying-Li LiuShu-Tang Zhao
Aug 17, 2021·The Plant Journal : for Cell and Molecular Biology·Naoki TakataToru Taniguchi
Jul 28, 2021·Journal of Experimental Botany·Zhen HanLi-Jun Liu
Aug 5, 2021·Journal of Integrative Plant Biology·Hui LiQuanzi Li

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