{"title":"Research Progress on Calcium Ion in Gametophytic Self-Incompatibility","authors":"Yanling Guo, H. Qu","doi":"10.2478/johr-2022-0016","DOIUrl":null,"url":null,"abstract":"Abstract Calcium ions are involved in plant self-incompatibility response as important signaling substances in cells. In the sporophytic self-incompatibility response, Ca2+ enters the stigma papilla cells and plays a key role in inhibiting incompatible pollen tube growth. In the gametophytic self-incompatibility reaction of Papaveraceae, the female determinants in the style (PrsS) and the male determinants in the pollen (PrpS) recognize each other, promote extracellular Ca2+ influx into the incompatible pollen tube, destroy the calcium ion gradient at the tip of the pollen tube, and inhibit the pollen tube growth. In the S-RNase-based Rosaceae game-tophytic self-incompatibility response, it is still unclear how the S-RNase interacts with the male determinant and how the S-RNase specifically degrades the RNA in the pollen tube. Therefore, we reviewed the research progress on the role of Ca2+ in self-incompatibility and, based on our research results, proposed a role model of Ca2+ as a signal substance in the gametophyte self-incompatibility response in Rosaceae.","PeriodicalId":16065,"journal":{"name":"Journal of Horticultural Research","volume":"30 1","pages":"13 - 22"},"PeriodicalIF":0.0000,"publicationDate":"2022-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Horticultural Research","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2478/johr-2022-0016","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Agricultural and Biological Sciences","Score":null,"Total":0}
引用次数: 0
Abstract
Abstract Calcium ions are involved in plant self-incompatibility response as important signaling substances in cells. In the sporophytic self-incompatibility response, Ca2+ enters the stigma papilla cells and plays a key role in inhibiting incompatible pollen tube growth. In the gametophytic self-incompatibility reaction of Papaveraceae, the female determinants in the style (PrsS) and the male determinants in the pollen (PrpS) recognize each other, promote extracellular Ca2+ influx into the incompatible pollen tube, destroy the calcium ion gradient at the tip of the pollen tube, and inhibit the pollen tube growth. In the S-RNase-based Rosaceae game-tophytic self-incompatibility response, it is still unclear how the S-RNase interacts with the male determinant and how the S-RNase specifically degrades the RNA in the pollen tube. Therefore, we reviewed the research progress on the role of Ca2+ in self-incompatibility and, based on our research results, proposed a role model of Ca2+ as a signal substance in the gametophyte self-incompatibility response in Rosaceae.