ArticlePlant molecular biology2023
OsPEX1, an extensin-like protein, negatively regulates root growth in a gibberellin-mediated manner in rice.
Article in Plant molecular biology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 7 citations in OpenAlex.
- Leucine-Rich Repeat Extension 7 Gene Confers Cotton Resistance to Verticillium Wilt.International journal of molecular sciences · 2026Article
- Extensin-like Protein OsPEX1 Modulates Grain Filling in Rice.Plants (Basel, Switzerland) · 2025Article
- Genetic Diversity Analysis and GWAS of Plant Height and Ear Height in Maize Inbred Lines from South-East China.Plants (Basel, Switzerland) · 2025Article
- Genome-wide identification and characterization of the LRX gene family in grapevine (Vitis vinifera L.) and functional characterization of VvLRX7 in plant salt response.BMC genomics · 2024Article
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Authors and funding
11 authors at 2 institutions in 1 country.
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Abstract
Leucine-rich repeat extensins (LRXs) are required for plant growth and development through affecting cell growth and cell wall formation. LRX gene family can be classified into two categories: predominantly vegetative-expressed LRX and reproductive-expressed PEX. In contrast to the tissue specificity of Arabidopsis PEX genes in reproductive organs, rice OsPEX1 is also highly expressed in roots in addition to reproductive tissue. However, whether and how OsPEX1 affects root growth is unclear. Here, we found that overexpression of OsPEX1 retarded root growth by reducing cell elongation likely caused by an increase of lignin deposition, whereas knockdown of OsPEX1 had an opposite effect on root growth, indicating that OsPEX1 negatively regulated root growth in rice. Further investigation uncovered the existence of a feedback loop between OsPEX1 expression level and GA biosynthesis for proper root growth. This was supported by the facts that exogenous GA
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