ArticleThe Plant cell2014
The role of Arabidopsis ABCG9 and ABCG31 ATP binding cassette transporters in pollen fitness and the deposition of steryl glycosides on the pollen coat.
Article in The Plant cell, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 67 papers.
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67 citing papers in PubMed, 138 citations in OpenAlex.
- Anther middle layer fatty acid synthesis is essential for pollen development and fertility restoration at low temperature in Arabidopsis.Plant physiology · 2026Article
- Article
- Insights into the Molecular Basis of Pollen Coat Development and Its Role in Male Sterility.International journal of molecular sciences · 2025Review
- Global identification of key genes for pollen germination in rice through high-throughput screening and gene editing.Journal of integrative plant biology · 2025Article
- Functional redundancy of transcription factors SlNOR and SlNOR-like1 is required for pollen development in tomato.Horticulture research · 2025Article
- The dynamic regulatory network of stamens and pistils in papaya.BMC plant biology · 2025Article
- Analysis ofInternational journal of molecular sciences · 2024Article
- RNA-seq analyses on gametogenic tissues of alfalfa (Medicago sativa) revealed plant reproduction- and ploidy-related genes.BMC plant biology · 2024Article
- OsSNDP4, a Sec14-nodulin Domain Protein, is Required for Pollen Development in Rice.Rice (New York, N.Y.) · 2024Article
- Transcriptomic landscape of seedstick in Arabidopsis thaliana funiculus after fertilisation.BMC plant biology · 2024Article
- Environmental regulation of male fertility is mediated through Arabidopsis transcription factors bHLH89, 91, and 10.Journal of experimental botany · 2024Article
- Structural insights into AtABCG25, an angiosperm-specific abscisic acid exporter.Plant communications · 2024Article
- Genome-wide analysis of the ABC gene family in almond and functional predictions during flower development, freezing stress, and salt stress.BMC plant biology · 2024Article
- The ectomycorrhizal fungusFrontiers in microbiology · 2024Article
- Analysis of the Candidate Genes and Underlying Molecular Mechanism of P198, an RNAi-Related Dwarf and Sterile Line.International journal of molecular sciences · 2023Article
- VAMP726 from maize and Arabidopsis confers pollen resistance to heat and UV radiation by influencing lignin content of sporopollenin.Plant communications · 2023Article
- Triphasic regulation of ZmMs13 encoding an ABCG transporter is sequentially required for callose dissolution, pollen exine and anther cuticle formation in maize.Journal of advanced research · 2023Article
- Biosynthesis and transport of pollen coat precursors in angiosperms.Nature plants · 2023Review
- Down-regulation of tomato STEROL GLYCOSYLTRANSFERASE 1 perturbs plant development and facilitates viroid infection.Journal of experimental botany · 2023Article
- Genome-Wide Characterization and Functional Analysis of ABCG Subfamily Reveal Its Role in Cutin Formation in Cotton.International journal of molecular sciences · 2023Article
7 more citing papers are in PubMed but not listed here.
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Authors and funding
10 authors at 5 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The pollen coat protects pollen grains from harmful environmental stresses such as drought and cold. Many compounds in the pollen coat are synthesized in the tapetum. However, the pathway by which they are transferred to the pollen surface remains obscure. We found that two Arabidopsis thaliana ATP binding cassette transporters, ABCG9 and ABCG31, were highly expressed in the tapetum and are involved in pollen coat deposition. Upon exposure to dry air, many abcg9 abcg31 pollen grains shriveled up and collapsed, and this phenotype was restored by complementation with ABCG9pro:GFP:ABCG9. GFP-tagged ABCG9 or ABCG31 localized to the plasma membrane. Electron microscopy revealed that the mutant pollen coat resembled the immature coat of the wild type, which contained many electron-lucent structures. Steryl glycosides were reduced to about half of wild-type levels in the abcg9 abcg31 pollen, but no differences in free sterols or steryl esters were observed. A mutant deficient in steryl glycoside biosynthesis, ugt80A2 ugt80B1, exhibited a similar phenotype. Together, these results indicate that steryl glycosides are critical for pollen fitness, by supporting pollen coat maturation, and that ABCG9 and ABCG31 contribute to the accumulation of this sterol on the surface of pollen.
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