{"title":"西伯利亚李雌蕊流产的生理特征","authors":"Jianhua Chen, Jian Zhang, Yuncheng Zhang, Quangang Liu, Pengkai Wang, Yongqiang Sun, Shengjun Dong","doi":"10.1007/s00468-024-02504-x","DOIUrl":null,"url":null,"abstract":"<div><h3>Key message</h3><p>Pistil abortion in <i>Prunus sibirica</i> was associated with insufficient supply of nutrient, auxins, and gibberellins in flower buds, which promotes pistil development, and accumulation of cytokinins, which inhibits pistil development.</p><h3>Abstract</h3><p><i>Prunus sibirica</i> is an important ecological and economic tree species with high utilization potential and broad application prospects. However, pistil abortion affects its fruit setting, yield, and quality, restricting its industrial development. In this study, the type and stage of pistil abortion in <i>P. sibirica</i> were identified using flower buds with abortive and fertile pistil. The effects of different nutrients and endogenous hormones on pistil abortion were analyzed. The pistil abortion type of <i>P. sibirica</i> clone belonged to abnormal style structure, and the key stage of pistil abortion was the dew white stage, characterized by pistil degeneration and dissolution at the dew white stage and complete pistil disintegration and disappearance at the full blooming stage. The soluble protein, soluble sugar, and total sugar contents of flower buds with abortive pistils were significantly lower than those of flower buds with fertile pistils at the dew white, initial blooming, and full blooming stages. Among the 44 hormones detected in flower buds of <i>P. sibirica</i>, majority were cytokinins (CKs 25), followed by auxins (13). At the dew white stage, the CK content in flower buds with abortive pistils was significantly higher than that in flower buds with fertile pistils. Pistil abortion in <i>P. sibirica</i> was mainly due to insufficient supply of soluble protein, soluble sugar, and total sugar in flower buds; insufficient supply of auxins and gibberellins, which promotes pistil development; and accumulation of cytokinins, which inhibits pistil development.</p></div>","PeriodicalId":805,"journal":{"name":"Trees","volume":"38 3","pages":"655 - 666"},"PeriodicalIF":2.1000,"publicationDate":"2024-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Physiological characteristics of pistil abortion in Prunus sibirica\",\"authors\":\"Jianhua Chen, Jian Zhang, Yuncheng Zhang, Quangang Liu, Pengkai Wang, Yongqiang Sun, Shengjun Dong\",\"doi\":\"10.1007/s00468-024-02504-x\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><h3>Key message</h3><p>Pistil abortion in <i>Prunus sibirica</i> was associated with insufficient supply of nutrient, auxins, and gibberellins in flower buds, which promotes pistil development, and accumulation of cytokinins, which inhibits pistil development.</p><h3>Abstract</h3><p><i>Prunus sibirica</i> is an important ecological and economic tree species with high utilization potential and broad application prospects. However, pistil abortion affects its fruit setting, yield, and quality, restricting its industrial development. In this study, the type and stage of pistil abortion in <i>P. sibirica</i> were identified using flower buds with abortive and fertile pistil. The effects of different nutrients and endogenous hormones on pistil abortion were analyzed. The pistil abortion type of <i>P. sibirica</i> clone belonged to abnormal style structure, and the key stage of pistil abortion was the dew white stage, characterized by pistil degeneration and dissolution at the dew white stage and complete pistil disintegration and disappearance at the full blooming stage. The soluble protein, soluble sugar, and total sugar contents of flower buds with abortive pistils were significantly lower than those of flower buds with fertile pistils at the dew white, initial blooming, and full blooming stages. Among the 44 hormones detected in flower buds of <i>P. sibirica</i>, majority were cytokinins (CKs 25), followed by auxins (13). At the dew white stage, the CK content in flower buds with abortive pistils was significantly higher than that in flower buds with fertile pistils. Pistil abortion in <i>P. sibirica</i> was mainly due to insufficient supply of soluble protein, soluble sugar, and total sugar in flower buds; insufficient supply of auxins and gibberellins, which promotes pistil development; and accumulation of cytokinins, which inhibits pistil development.</p></div>\",\"PeriodicalId\":805,\"journal\":{\"name\":\"Trees\",\"volume\":\"38 3\",\"pages\":\"655 - 666\"},\"PeriodicalIF\":2.1000,\"publicationDate\":\"2024-03-27\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Trees\",\"FirstCategoryId\":\"2\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s00468-024-02504-x\",\"RegionNum\":3,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"FORESTRY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Trees","FirstCategoryId":"2","ListUrlMain":"https://link.springer.com/article/10.1007/s00468-024-02504-x","RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"FORESTRY","Score":null,"Total":0}
引用次数: 0
摘要
摘要西伯利亚李（Prunus sibirica）是重要的生态经济树种，具有很高的利用潜力和广阔的应用前景。然而，雌蕊流产会影响其坐果、产量和质量，制约其产业发展。本研究利用雌蕊流产和雌蕊可育的花蕾，鉴定了西伯利亚红豆杉雌蕊流产的类型和阶段。分析了不同营养物质和内源激素对雌蕊流产的影响。西伯利亚雌花克隆的雌蕊流产类型属于花柱结构异常，雌蕊流产的关键阶段是露白期，露白期雌蕊退化溶解，盛花期雌蕊完全解体消失。在露白期、初花期和盛花期，雌蕊败育花蕾的可溶性蛋白、可溶性糖和总糖含量都明显低于可育雌蕊的花蕾。在西伯利亚花蕾中检测到的 44 种激素中，细胞分裂素占多数（CKs 25），其次是辅酶（13）。在露白期，雌蕊流产的花蕾中的 CK 含量明显高于雌蕊可育的花蕾。西伯利亚雌花雌蕊败育的主要原因是花蕾中可溶性蛋白质、可溶性糖和总糖供应不足；促进雌蕊发育的辅助素和赤霉素供应不足；以及抑制雌蕊发育的细胞分裂素积累。
Physiological characteristics of pistil abortion in Prunus sibirica
Key message
Pistil abortion in Prunus sibirica was associated with insufficient supply of nutrient, auxins, and gibberellins in flower buds, which promotes pistil development, and accumulation of cytokinins, which inhibits pistil development.
Abstract
Prunus sibirica is an important ecological and economic tree species with high utilization potential and broad application prospects. However, pistil abortion affects its fruit setting, yield, and quality, restricting its industrial development. In this study, the type and stage of pistil abortion in P. sibirica were identified using flower buds with abortive and fertile pistil. The effects of different nutrients and endogenous hormones on pistil abortion were analyzed. The pistil abortion type of P. sibirica clone belonged to abnormal style structure, and the key stage of pistil abortion was the dew white stage, characterized by pistil degeneration and dissolution at the dew white stage and complete pistil disintegration and disappearance at the full blooming stage. The soluble protein, soluble sugar, and total sugar contents of flower buds with abortive pistils were significantly lower than those of flower buds with fertile pistils at the dew white, initial blooming, and full blooming stages. Among the 44 hormones detected in flower buds of P. sibirica, majority were cytokinins (CKs 25), followed by auxins (13). At the dew white stage, the CK content in flower buds with abortive pistils was significantly higher than that in flower buds with fertile pistils. Pistil abortion in P. sibirica was mainly due to insufficient supply of soluble protein, soluble sugar, and total sugar in flower buds; insufficient supply of auxins and gibberellins, which promotes pistil development; and accumulation of cytokinins, which inhibits pistil development.
期刊介绍：
Trees - Structure and Function publishes original articles on the physiology, biochemistry, functional anatomy, structure and ecology of trees and other woody plants. Also presented are articles concerned with pathology and technological problems, when they contribute to the basic understanding of structure and function of trees. In addition to original articles and short communications, the journal publishes reviews on selected topics concerning the structure and function of trees.
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