Ultrastructure of Nicotiana alata Pollen, Its Germination and Early Tube Formation
1985; Wiley; Volume: 72; Issue: 5 Linguagem: Inglês
10.2307/2443685
ISSN1537-2197
AutoresM. Cresti, F. Ciampolini, David L. Mulcahy, G. B. Mulcahy,
Tópico(s)Plant Reproductive Biology
ResumoAmerican Journal of BotanyVolume 72, Issue 5 p. 719-727 Article ULTRASTRUCTURE OF NICOTIANA ALATA POLLEN, ITS GERMINATION AND EARLY TUBE FORMATION M. Cresti, M. Cresti Department of Environmental Biology, University of Siena, 53100 Siena, ItalySearch for more papers by this authorF. Ciampolini, F. Ciampolini Department of Environmental Biology, University of Siena, 53100 Siena, ItalySearch for more papers by this authorD. L. M. Mulcahy, D. L. M. Mulcahy Department of Botany, University of Massachusetts, Amherst, Massachusetts, 01003Search for more papers by this authorG. Mulcahy, G. Mulcahy Department of Botany, University of Massachusetts, Amherst, Massachusetts, 01003Search for more papers by this author M. Cresti, M. Cresti Department of Environmental Biology, University of Siena, 53100 Siena, ItalySearch for more papers by this authorF. Ciampolini, F. Ciampolini Department of Environmental Biology, University of Siena, 53100 Siena, ItalySearch for more papers by this authorD. L. M. Mulcahy, D. L. M. Mulcahy Department of Botany, University of Massachusetts, Amherst, Massachusetts, 01003Search for more papers by this authorG. Mulcahy, G. Mulcahy Department of Botany, University of Massachusetts, Amherst, Massachusetts, 01003Search for more papers by this author First published: 01 May 1985 https://doi.org/10.1002/j.1537-2197.1985.tb08331.xCitations: 46 Correspondence to be sent to: Mauro Cresti, Universita' di Siena, Dipartimento di Biologia Ambientale, Sez. Botanica, Via Mattioli, 4–53100 Siena, Italy. 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 Both internal anatomy and external morphology of the mature pollen grain of Nicotiana alata have been studied, together with pollen activation and tube emergence and its cytological zonation. A peculiar feature of mature pollen is the occurrence in the vegetative cell cytoplasm of a large quantity of stacked cisterns of rough endoplasmic reticulum, which then dissociate during pollen activation. Pollen tube emergence generally occurs 2 hr 30 min after hydration, while cytological zonation is complete 4 hr 30 min after hydration when the first callosic plug is formed. Citing Literature Volume72, Issue5May 1985Pages 719-727 RelatedInformation
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