ArticleJournal of experimental botany2011
ABC transporters coordinately expressed during lignification of Arabidopsis stems include a set of ABCBs associated with auxin transport.
Article in Journal of experimental botany, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 81 papers.
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81 citing papers in PubMed, 188 citations in OpenAlex.
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- Extracellular vesicles of Norway spruce contain precursors and enzymes for lignin formation and salicylic acid.Plant physiology · 2024Article
- Advances in Plant Auxin Biology: Synthesis, Metabolism, Signaling, Interaction with Other Hormones, and Roles under Abiotic Stress.Plants (Basel, Switzerland) · 2024Review
- Single-nucleus RNA and ATAC sequencing analyses provide molecular insights into early pod development of peanut fruit.Plant communications · 2024Article
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- Cytokinin signaling promotes root secondary growth and bud formation inJournal of ginseng research · 2024Article
- Genome-Wide Identification of the ABC Gene Family and Its Expression in Response to the Wood Degradation of Poplar inJournal of fungi (Basel, Switzerland) · 2024Article
- The grapevine ABC transporter B family member 15 is aFrontiers in plant science · 2024Article
- Genome-Wide Identification and Analysis of theInternational journal of molecular sciences · 2023Article
- Genome-wide identification of ATP-binding cassette transporter B subfamily, focusing on its structure, evolution and rearrangement in ciliates.Open biology · 2023Article
- ABCB-mediated shootward auxin transport feeds into the root clock.EMBO reports · 2023Article
- Reorganization of three-dimensional chromatin architecture in Medicago truncatula under phosphorus deficiency.Journal of experimental botany · 2023Article
- Effect of Nano-Selenium on Nutritional Quality of Cowpea and Response of ABCC Transporter Family.Molecules (Basel, Switzerland) · 2023Article
- Functional analysis revealed the involvement of ZmABCB15 in resistance to rice black-streaked dwarf virus infection.BMC plant biology · 2022Article
- ATP-Binding Cassette G Transporters and Their Multiple Roles Especially for Male Fertility inInternational journal of molecular sciences · 2022Review
- New Insights into Evolution of the ABC Transporter Family inCurrent issues in molecular biology · 2022Article
21 more citing papers are in PubMed but not listed here.
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8 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The primary inflorescence stem of Arabidopsis thaliana is rich in lignified cell walls, in both vascular bundles and interfascicular fibres. Previous gene expression studies demonstrated a correlation between expression of phenylpropanoid biosynthetic genes and a subset of genes encoding ATP-binding cassette (ABC) transporters, especially in the ABCB/multi-drug resistance/P-glycoprotein (ABCB/MDR/PGP) and ABCG/pleiotropic drug resistance (ABCG/PDR) subfamilies. The objective of this study was to characterize these ABC transporters in terms of their gene expression and their function in development of lignified cells. Based on in silico analyses, four ABC transporters were selected for detailed investigation: ABCB11/MDR8, ABCB14/MDR12, ABCB15/MDR13, and ABCG33/PDR5. Promoter::glucuronidase reporter assays for each gene indicated that promoters of ABCB11, ABCB14, ABCB15, and ABCG33 transporters are active in the vascular tissues of primary stem, and in some cases in interfascicular tissues as well. Homozygous T-DNA insertion mutant lines showed no apparent irregular xylem phenotype or alterations in interfascicular fibre lignification or morphology in comparison with wild type. However, in abcb14-1 mutants, stem vascular morphology was slightly disorganized, with decreased phloem area in the vascular bundle and decreased xylem vessel lumen diameter. In addition, abcb14-1 mutants showed both decreased polar auxin transport through whole stems and altered auxin distribution in the procambium. It is proposed that both ABCB14 and ABCB15 promote auxin transport since inflorescence stems in both mutants showed a reduction in polar auxin transport, which was not observed for any of the ABCG subfamily mutants tested. In the case of ABCB14, the reduction in auxin transport is correlated with a mild disruption of vascular development in the inflorescence stem.
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