ArticleThe New phytologist2022
CsiLAC4 modulates boron flow in Arabidopsis and Citrus via high-boron-dependent lignification of cell walls.
Article in The New phytologist, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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13 citing papers in PubMed, 22 citations in OpenAlex.
- MicroRNA gatekeepers: Orchestrating rhizospheric dynamics.Journal of integrative plant biology · 2025Review
- Genome-wide identification, classification, and expression profiling of LAC gene family in sesame.BMC plant biology · 2024Article
- CsLAC4, regulated by CsmiR397a, confers drought tolerance to the tea plant by enhancing lignin biosynthesis.Stress biology · 2024Article
- Genome-Wide Identification and Characterization of the Laccase Gene Family inPlants (Basel, Switzerland) · 2024Article
- Mechanisms by Which Increased pH Ameliorates Copper Excess inPlants (Basel, Switzerland) · 2024Article
- Genome-wide identification and expressional analysis of carotenoid cleavage oxygenase (CCO) gene family in Betula platyphylla under abiotic stress.BMC genomics · 2024Article
- TheHorticulture research · 2024Article
- Contribution of theInternational journal of molecular sciences · 2023Review
- The PcMYB44-mediated miR397-PcLACs module regulates defence-induced lignification in pear resistance to fungal disease.Molecular plant pathology · 2023Article
- Physiological and iTRAQ-based quantitative proteomics analyses reveal the similarities and differences in stress responses between short-term boron deficiency and toxicity in wheat roots.Molecular biology reports · 2023Article
- The Citrus Laccase GeneInternational journal of molecular sciences · 2022Article
- Identification of Competing Endogenous RNAs (ceRNAs) Network Associated with Drought Tolerance inInternational journal of molecular sciences · 2022Article
- Review
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10 authors at 6 institutions in 2 countries.
Funding
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Abstract
The mechanisms underlying plant tolerance to boron (B) excess are far from fully understood. Here we characterized the role of the miR397-CsiLAC4/CsiLAC17 (from Citrus sinensis) module in regulation of B flow. Live-cell imaging techniques were used in localization studies. A tobacco transient expression system tested modulations of CsiLAC4 and CsiLAC17 by miR397. Transgenic Arabidopsis were generated to analyze the biological functions of CsiLAC4 and CsiLAC17. CsiLAC4's role in xylem lignification was determined by mRNA hybridization and cytochemistry. In situ B distribution was analyzed by laser ablation inductively coupled plasma mass spectrometry. CsiLAC4 and CsiLAC17 are predominantly localized in the apoplast of tobacco epidermal cells. Overexpression of CsiLAC4 in Arabidopsis improves the plants' tolerance to boric acid excess by triggering high-B-dependent lignification of the vascular system's cell wall and reducing free B content in roots and shoots. In Citrus, CsiLAC4 is expressed explicitly in the xylem parenchyma and is modulated by B-responsive miR397. Upregulation of CsiLAC4 in Citrus results in lignification of the xylem cell walls, restricting B flow from xylem vessels to the phloem. CsiLAC4 contributes to plant tolerance to boric acid excess via high-B-dependent lignification of cell walls, which set up a 'physical barrier' preventing B flow.
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