ArticlePlant molecular biology2006
The Populus homeobox gene ARBORKNOX1 reveals overlapping mechanisms regulating the shoot apical meristem and the vascular cambium.
Article in Plant molecular biology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers, 1 of them a synthesis that pooled it.
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Who cites it
62 citing papers in PubMed, 1 synthesis or guideline pooled it.
- A cross-species transcriptomics approach to identify genes involved in leaf development.BMC genomics · 2008Pooled it
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- The ASYMMETRIC LEAVES1 ortholog PagAS1a promotes xylem development and plant growth inForestry research · 2025Article
- Ectopic Expression ofInternational journal of molecular sciences · 2024Article
- Network Analysis of Metabolome and Transcriptome Revealed Regulation of Different Nitrogen Concentrations on Hybrid Poplar Cambium Development.International journal of molecular sciences · 2024Article
- AtHSPR functions in gibberellin-mediated primary root growth by interacting with KNAT5 and OFP1 in Arabidopsis.Plant cell reports · 2023Article
- Genome-Wide Identification of theGenes · 2023Article
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- Regulation of secondary growth by poplarFrontiers in plant science · 2023Article
- The Role of Transcription Factors in the Regulation of Plant Shoot Branching.Plants (Basel, Switzerland) · 2022Review
- Genome-Wide Identification, Expansion, and Evolution Analysis of Homeobox Gene Family Reveals TALE Genes Important for Secondary Cell Wall Biosynthesis in Moso Bamboo (International journal of molecular sciences · 2022Article
- Transcription factor PagLBD21 functions as a repressor of secondary xylem development inForestry research · 2022Article
- Meristematic Connectome: A Cellular Coordinator of Plant Responses to Environmental Signals?Cells · 2021Article
- The BOP-type co-transcriptional regulator NODULE ROOT1 promotes stem secondary growth of the tropical Cannabaceae tree Parasponia andersonii.The Plant journal : for cell and molecular biology · 2021Article
- Auxin signaling and vascular cambium formation enable storage metabolism in cassava tuberous roots.Journal of experimental botany · 2021Article
- Identify of Fast-Growing Related Genes Especially in Height Growth by Combining QTL Analysis and Transcriptome inFrontiers in genetics · 2021Article
- MYB Transcription Factor161 Mediates Feedback Regulation ofPlant physiology · 2020Article
- Enhancing the expression ofRoyal Society open science · 2020Article
- Over-expression of transcription factor ARK1 gene leads to down-regulation of lignin synthesis related genes in hybrid poplar '717'.Scientific reports · 2020Article
- Molecular Changes Concomitant with Vascular System Development in Mature Galls Induced by Root-Knot Nematodes in the Model Tree HostInternational journal of molecular sciences · 2020Article
2 more citing papers are in PubMed but not listed here.
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7 authors.
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Abstract
Secondary growth is supported by a dividing population of meristematic cells within the vascular cambium whose daughter cells are recruited to differentiate within secondary phloem and xylem tissues. We cloned a Populus Class 1 KNOX homeobox gene, ARBORKNOX1 (ARK1), which is orthologous to Arabidopsis SHOOT MERISTEMLESS (STM). ARK1 is expressed in the shoot apical meristem (SAM) and the vascular cambium, and is down-regulated in the terminally differentiated cells of leaves and secondary vascular tissues that are derived from these meristems. Transformation of Populus with either ARK1 or STM over-expression constructs results in similar morphological phenotypes characterized by inhibition of the differentiation of leaves, internode elongation, and secondary vascular cell types in stems. Microarray analysis showed that 41% of genes up-regulated in the stems of ARK1 over-expressing plants encode proteins involved in extracellular matrix synthesis or modification, including proteins involved in cell identity and signaling, cell adhesion, or cell differentiation. These gene expression differences are reflected in alterations of cell wall biochemistry and lignin composition in ARK1 over-expressing plants. Our results suggest that ARK1 has a complex mode of action that may include regulating cell fates through modification of the extracellular matrix. Our findings support the hypothesis that the SAM and vascular cambium are regulated by overlapping genetic programs.
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