ArticleRice (New York, N.Y.)2018
Rice UCL8, a plantacyanin gene targeted by miR408, regulates fertility by controlling pollen tube germination and growth.
Article in Rice (New York, N.Y.), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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16 citing papers in PubMed, 36 citations in OpenAlex.
- Reproductive phasiRNAs: At the core of small RNA-mediated male fertility in monocots.Plant communications · 2026Article
- miR408-5p and miR408-3p cooperatively reduce cadmium uptake and accumulation in rice.PLoS biology · 2026Article
- Genomic atlas of phytocyanin genes for improvement of climate resilience in bread wheat.BMC plant biology · 2026Article
- Imaging Pollen and Pollen Tubes by Scanning and Transmission Electron Microscopy.Methods in molecular biology (Clifton, N.J.) · 2026Article
- Uclacyanin MtUC1 Is Involved in the Regulation of Nodule Senescence in Medicago truncatula.Molecular plant pathology · 2025Article
- Genetic and molecular mechanisms underlying the male sterility in rice.Journal of applied genetics · 2025Review
- MicroRNA gatekeepers: Orchestrating rhizospheric dynamics.Journal of integrative plant biology · 2025Review
- The rice microRNA159-SPOROCYTELESS EAR2 module regulates starch biosynthesis during pollen development and maintains male fertility.The Plant cell · 2024Article
- Molecular evolution of Phytocyanin gene and analysis of expression at different coloring periods in apple (Malus domestica).BMC plant biology · 2024Article
- Switching action modes of miR408-5p mediates auxin signaling in rice.Nature communications · 2024Article
- Cytological observation and RNA-seq analysis reveal novel miRNAs high expression associated with the pollen fertility of neo-tetraploid rice.BMC plant biology · 2023Article
- Delineating the tissue-mediated drought stress governed tuning of conserved miR408 and its targets in rice.Functional & integrative genomics · 2023Article
- The Evolution and Functional Roles ofInternational journal of molecular sciences · 2022Review
- MiR408-International journal of molecular sciences · 2021Article
- Exploiting Genic Male Sterility in Rice: From Molecular Dissection to Breeding Applications.Frontiers in plant science · 2021Review
- Copper deficiency alters shoot architecture and reduces fertility of both gynoecium and androecium inPlant direct · 2020Article
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Authors and funding
11 authors at 1 institution in 1 country.
Funding
Abstract
backgroundPollen tube formation and growth are crucial steps that lead to seed production. Despite the importance of pollen tube growth, the molecular mechanisms implicated in its spatial and temporal control are not fully known. In this study, we found an uclacyanin gene, OsUCL8, that regulates pollen intine deposition and pollen tube growth.
findingsThe overexpression of OsUCL8 led to a striking irregularity in pollen tube growth and pollination and thus affected the seed setting rate in rice; many pollen tubes appeared to lose the ability to grow directly into the style. Conversely, plants with OsUCL8 knocked out and plants overexpressing miR408, a negative regulator of OsUCL8, had vigorous pollens with a higher germination rate. We further demonstrated that OsUCL8 mainly affects pollen intine formation. The addition of Vitamin B1 (VB1) significantly contributed to the germination of OXUCL8 pollen grains, suggesting that OsUCL8 could be associated with VB1 production. Using a yeast two-hybrid system, we revealed that OsUCL8 interacts with the protein OsPKIWI, a homolog of the Arabidopsis FNRL protein. We thus hypothesized that OsUCL8 might regulate the production of VB components by interacting with OsPKIWI. This study revealed a novel molecular mechanism of pollen tube growth regulation.
conclusionsThe rice plantacyanin family member OsUCL8 plays an important role in pollen tube formation and growth and, in turn, regulates fertility and the seed setting rate.
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