The Fine Structure of the Grass Guard Cell
1962; Wiley; Volume: 49; Issue: 2 Linguagem: Inglês
10.2307/2439025
ISSN1537-2197
Autores Tópico(s)Soil Mechanics and Vehicle Dynamics
ResumoAmerican Journal of BotanyVolume 49, Issue 2 p. 110-115 Article THE FINE STRUCTURE OF THE GRASS GUARD CELL† Walter V. Brown, Walter V. Brown The Plant Research Institute and Department of Botany, University of Texas, Austin, TexasSearch for more papers by this authorSr. C. Johnson, Sr. C. Johnson The Plant Research Institute and Department of Botany, University of Texas, Austin, TexasSearch for more papers by this author Walter V. Brown, Walter V. Brown The Plant Research Institute and Department of Botany, University of Texas, Austin, TexasSearch for more papers by this authorSr. C. Johnson, Sr. C. Johnson The Plant Research Institute and Department of Botany, University of Texas, Austin, TexasSearch for more papers by this author First published: 01 February 1962 https://doi.org/10.1002/j.1537-2197.1962.tb14915.xCitations: 30 †Supported by Grant G–13330 from the National Science Foundation. 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 Brown, W. V., and Sr. C. Johnson. (U. Texas, Austin.) The fine structure of the grass guard cell. Amer. Jour, Bot. 49 (2): 110–115. Illus. 1962.—An electron microscopic study of 16 species of grasses classified in 10 tribes and 5 subfamilies has revealed some hitherto unknown facts about guard-cell structure. In species of 3 subfamilies, but not in the Festucoideae, there are membranes on the guard cells overarching the stoma. In the Festucoideae, the membrane is rudimentary or absent and is associated with a different cross-sectional shape of the guard cell. The central canal through the thick-walled region of the guard cell is structurally quite complex. The wall between the central canal and the subsidiary cell is thin and lacks plasmodesmata. There are plastids but no developed chloroplasts in grass guard cells. Mitochondria are abundant, but vacuoles are undetectable. At the ends of the guard-cell pair, the wall between them is incomplete and the protoplasts are confluent. Citing Literature Volume49, Issue2February 1962Pages 110-115 RelatedInformation
Referência(s)