Transcription factor LkWOX4 is involved in adventitious root development in Larix kaempferi

Wang, Hongming; Xie, Yunhui; Liu, Wusheng; Tao, Gui-Yun; Sun, Chao; Sun, Xiaomei; Zhang, Shougong

doi:10.1016/j.gene.2020.144942

Cited by 13 publications

(9 citation statements)

References 52 publications

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“…However, it remains challenging to obtain transgenic larch plants, as a rapid, efficient, and stable transgenic system is still lacking. Model plants such as Arabidopsis and poplar have been used to study AR formation and the function of genes from other plants due to the wellestablished genetic transformation system in them [57][58][59][60] . Here, it was found that the sequence similarity of ARF7/19 between larch and poplar was greater than that of Arabidopsis, so poplar was used to study the function of LkARF7/19 in AR formation.…”

Section: Discussionmentioning

confidence: 99%

LkARF7 and LkARF19 overexpression promote adventitious root formation in a heterologous poplar model by positively regulating LkBBM1

Tao

Xie

et al. 2023

Commun Biol

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Cuttage propagation involves adventitious root formation induced by auxin. In our previous study, Larix kaempferi BABY BOOM 1 (LkBBM1), which is known to regulate adventitious root formation, was affected by auxin. However, the relationship between LkBBM1 and auxin remains unclear. Auxin response factors (ARFs) are a class of important transcription factors in the auxin signaling pathway and modulate the expression of early auxin-responsive genes by binding to auxin response elements. In the present study, we identified 14 L. kaempferi ARFs (LkARFs), and found LkARF7 and LkARF19 bound to LkBBM1 promoter and enhanced its transcription using yeast one-hybrid, ChIP-qPCR, and dual-luciferase assays. In addition, the treatment with naphthalene acetic acid promoted the expression of LkARF7 and LkARF19. We also found that overexpression of these two genes in poplar promoted adventitious root formation. Furthermore, LkARF19 interacted with the DEAD-box ATP-dependent RNA helicase 53-like protein to form a heterodimer to regulate adventitious root formation. Altogether, our results reveal an additional regulatory mechanism underlying the control of adventitious root formation by auxin.

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Section: Discussionmentioning

confidence: 99%

LkARF7 and LkARF19 overexpression promote adventitious root formation in a heterologous poplar model by positively regulating LkBBM1

Tao

Xie

et al. 2023

Commun Biol

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“…There are similar downstream target genes associated with AR formation between herbaceous and woody plants, including homobox (including WOX and HOX ). For example, LkWOX4 promotes the biomass of roots and numbers of ARs in Larix kaempferi by interacting with Prephenate transaminase 18 (LkPAT18 ), which also interacts with JA biosynthesis-associated Acyl-coa-binding protein 6 (ACBP6 ) both in seedlings of Larix kaempferi and Populus tomentosa , and overexpression of WOX4 increases both the content of JA and the number of ARs (Li et al, 2018;Wang et al, 2020). However, the same regulator such as MYC2 may perform different functions between herbaceous and woody plants.…”

Section: Root Growth and Regenerationmentioning

confidence: 99%

Emerging role of jasmonic acid in woody plant development

Zhu

Bao

Chen

et al. 2023

Preprint

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Jasmonic acid (JA) is an important phytohormone in optimizing plant developmental growth and stress responses. The biosynthesis and signalling pathways of JA share common and unique features between herbaceous and woody plants. However, numerous reports have primarily focused on JA function in model plant species or herbaceous plants, leading to a notable lack of research on the JA regulatory mechanism in woody plants. In particular, the role of Jas in posttranscriptional regulation events such as alternative splicing (AS), has largely not been elucidated in trees. In this review article, we summarize the current progress of JA-involved regulation of developmental growth in different tree species. Along with an accumulating number of studies revealing that AS participates in the JA regulatory network in woody plants, we also update the multiple roles served by JA associated with similar properties and differential regulation within their herbaceous counterparts. The utilization of genetic studies and high-throughput proteogenomic approaches to analyse AS genes and splicing factors involved in JA signalling would further advance our understanding of JA modulation in woody plants.

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“…For example, Xu et al (2015) demonstrated that overexpressing either PeWOX11a or PeWOX11b increased the AR number on the cuttings of poplar. A recent study cloned a Larix kaempferi gene LkWOX4 and overexpressed it in poplar, and the result showed that LkWOX4 overexpression significantly increased AR numbers and decreased AR lengths (Wang et al, 2020), imply that the common role of WOX members in modulating AR formation in different plant species.…”

Section: Wuschel-related Homeobox (Wox) Family Tfsmentioning

confidence: 99%

Molecular Bases for the Regulation of Adventitious Root Generation in Plants

2021

Front. Plant Sci.

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The formation of adventitious roots (ARs) is an ecologically and economically important developmental process in plants. The evolution of AR systems is an important way for plants to cope with various environmental stresses. This review focuses on identified genes that have known to regulate the induction and initiation of ARs and offers an analysis of this process at the molecular level. The critical genes involved in adventitious rooting are the auxin signaling-responsive genes, including the AUXIN RESPONSE FACTOR (ARF) and the LATERAL ORGAN BOUNDARIES-DOMAIN (LOB) gene families, and genes associated with auxin transport and homeostasis, the quiescent center (QC) maintenance, and the root apical meristem (RAM) initiation. Several genes involved in cell wall modulation are also known to be involved in the regulation of adventitious rooting. Furthermore, the molecular processes that play roles in the ethylene, cytokinin, and jasmonic acid signaling pathways and their crosstalk modulate the generation of ARs. The crosstalk and interaction among many molecular processes generates complex networks that regulate AR generation.

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Transcription factor LkWOX4 is involved in adventitious root development in Larix kaempferi

Cited by 13 publications

References 52 publications

LkARF7 and LkARF19 overexpression promote adventitious root formation in a heterologous poplar model by positively regulating LkBBM1

LkARF7 and LkARF19 overexpression promote adventitious root formation in a heterologous poplar model by positively regulating LkBBM1

Emerging role of jasmonic acid in woody plant development

Molecular Bases for the Regulation of Adventitious Root Generation in Plants

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