ArticlePlant physiology2022
Oryza sativa PECTIN DEFECTIVE TAPETUM1 affects anther development through a pectin-mediated signaling pathway in rice.
Article in Plant physiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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12 citing papers in PubMed, 15 citations in OpenAlex.
- Precocious programmed cell death and tapetal dysfunction cause pollen abortion in Lycium barbarum male-sterile line ningqi-5.Protoplasma · 2026Article
- Knocking out a wall-associated kinase gene enhances rice resistance to planthoppers in the field.Pest management science · 2026Article
- Cysteine-rich receptor-like kinase and MADS-box co-regulation of programmed cell death drives apical spikelet degeneration in wheat.Plant physiology · 2026Article
- Unraveling Advances in Rice Male Sterility Systems: From Genetic Basis to Hybrid Breeding Innovation.Plants (Basel, Switzerland) · 2026Review
- Genome wide association mapping and haplotype analysis identify genetic loci and candidate genes associated with yield related traits in rice (Frontiers in plant science · 2026Article
- The heterotrimeric G protein γ3 subunit, RGG3/GS3, integrates sugar-starvation and hormone-responsive signaling pathways to promote coleoptile elongation during anaerobic germination in rice.Plant molecular biology · 2025Article
- Pectate LyasePlants (Basel, Switzerland) · 2025Article
- Spatiotemporal Transcriptome Profiling Reveals Nutrient Transport Dynamics in Rice Nodes and Roots During Reproductive Development.International journal of molecular sciences · 2025Article
- Defective pollen meiosis in Arabidopsis due to combined arabinan and galactan insufficiency.Plant & cell physiology · 2025Article
- Article
- Rapid function analysis of OsiWAK1 using a Dual-Luciferase assay in rice.Scientific reports · 2024Article
- Genome-Wide Analysis of thePlants (Basel, Switzerland) · 2023Article
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8 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Galacturonosyltransferase (GalAT) is required for the synthesis of pectin, an important component of plant cell walls that is also involved in signal transduction. Here, we describe the rice (Oryza sativa) male-sterile mutant O. sativa pectin-defective tapetum1 (ospdt1), in which GalAT is mutated. The ospdt1 mutant exhibited premature programmed cell death (PCD) of the tapetum and disordered pollen walls, resulting in aborted pollen grains. Pectin distribution in the anther sac was comparable between the mutant and the wild-type, suggesting that the structural pectin was not dramatically affected in ospdt1. Wall-associated kinases are necessary for the signal transduction of pectin, and the intracellular distribution of O. sativa indica WALL-ASSOCIATED KINASE1 (OsiWAK1), which binds pectic polysaccharides to its extracellular domain, was affected in ospdt1. OsiWAK1 RNA interference lines exhibited earlier tapetal PCD, similar to ospdt1. Furthermore, overexpression of OsiWAK1 in ospdt1 lines partially rescued the defects observed in ospdt1, suggesting that OsiWAK1 plays pivotal roles in the function of OsPDT1. These results suggest that the mutation of OsPDT1 does not dramatically affect structural pectin but affects components of the pectin-mediated signaling pathway, such as OsiWAK1, and causes male sterility.
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