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Pollen-Pistil Interaction in Kiwifruit (Actinidia deliciosa; Actinidiaceae)

1996; Wiley; Volume: 83; Issue: 2 Linguagem: Espanhol

10.2307/2445931

1537-2197

María Victoria González, M. Coque, M. Herrero,

Plant Physiology and Cultivation Studies

American Journal of BotanyVolume 83, Issue 2 p. 148-154 Article Pollen-pistil interaction in kiwifruit (Actinidia deliciosa; Actinidiaceae) María Victoria González, María Victoria González Departamento de Fruticultura, Instituto de Experimentación y Promoción Agraria, Apartado 13, 33300 Villaviciosa, Asturias, SpainSearch for more papers by this authorManuel Coque, Manuel Coque Departamento de Fruticultura, Instituto de Experimentación y Promoción Agraria, Apartado 13, 33300 Villaviciosa, Asturias, SpainSearch for more papers by this authorMaría Herrero, María Herrero Unidad de Fruticultura, S.I.A.-D.G.A. Campus de Aula Dei, Apartado 727, 50080 Zaragoza, SpainSearch for more papers by this author María Victoria González, María Victoria González Departamento de Fruticultura, Instituto de Experimentación y Promoción Agraria, Apartado 13, 33300 Villaviciosa, Asturias, SpainSearch for more papers by this authorManuel Coque, Manuel Coque Departamento de Fruticultura, Instituto de Experimentación y Promoción Agraria, Apartado 13, 33300 Villaviciosa, Asturias, SpainSearch for more papers by this authorMaría Herrero, María Herrero Unidad de Fruticultura, S.I.A.-D.G.A. Campus de Aula Dei, Apartado 727, 50080 Zaragoza, SpainSearch for more papers by this author First published: 01 February 1996 https://doi.org/10.1002/j.1537-2197.1996.tb12690.xCitations: 25 Author for correspondence. AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Abstract The pollen-pistil interaction has been examined in kiwifruit (Actinidia deliciosa). In this species a large number of seeds are produced in each fruit and a great many pollen grains germinate and grow to reach the ovules. This growth is assisted by an abundant secretion that is present all along the pistilar tract. At anthesis, the stigma is covered by a secretion where the pollen grains germinate and grow. The stylar transmitting tissue is initially rich in starch reserves, but the starch gradually disappears and, concomitantly, an abundant secretion that stains for carbohydrates appears in all of the intercellular spaces. Pollen tube growth relies on this secretion since it is depleted after pollen tube passage, while in unpollinated flowers it remains unaltered throughout the flower life-span. In the ovary a similar situation occurs. The placental surface, where the pollen tubes grow before reaching the ovules, is covered by a number of obturators. At anthesis, these obturators are rich in starch reserves and have an abundant secretion on their outer surface. As time passes, starch disappears while the secretion increases. It is in this secretion that the pollen tubes grow on their way toward the ovules. These observations are discussed in terms of the support given by the pistil to pollen tube growth to achieve the highly successful reproductive performance of this species. Citing Literature Volume83, Issue2February 1996Pages 148-154 RelatedInformation