The Role of Mucilage in the Germination of Cuipo, Cavanillesia platanifolia (H. & B.) H. B. K. (Bombacaceae), a Tropical Tree
1985; Wiley; Volume: 72; Issue: 7 Linguagem: Inglês
10.2307/2443455
ISSN1537-2197
Autores Tópico(s)Plant Taxonomy and Phylogenetics
ResumoAmerican Journal of BotanyVolume 72, Issue 7 p. 1095-1105 Article THE ROLE OF MUCILAGE IN THE GERMINATION OF CUIPO, CAVANILLESIA PLATANIFOLIA (H. & B.) H. B. K. (BOMBACACEAE), A TROPICAL TREE Nancy C. Garwood, Nancy C. Garwood Department of Biology, Loyola University of Chicago, 6525 N, Sheridan Road, Chicago, Illinois, 60626Search for more papers by this author Nancy C. Garwood, Nancy C. Garwood Department of Biology, Loyola University of Chicago, 6525 N, Sheridan Road, Chicago, Illinois, 60626Search for more papers by this author First published: 01 July 1985 https://doi.org/10.1002/j.1537-2197.1985.tb08357.xCitations: 11AboutPDF 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 mucilage in the fruits of cuipo, Cavanillesia platanifolia, is an adaptation to the unpredictable rainfall at the beginning of the rainy season in the tropical moist forests of central Panama. It allows cuipo to germinate rapidly following rains in the early rainy season, before other potential competitors. Mucilage comprises ~27% of the mass of the large (~3.5 g) wind-dispersed fruits of cuipo. Water uptake capacity of cuipo fruits (7 g water/g fruit in 10 min) was greater than that of the diaspores of five wind-dispersed species sympatric with cuipo. Diaspores of these five species lost all their absorbed water within 2 days but cuipo retained it for 2 wk. Experiments using two mucilage treatments (seeds within fruit and seeds alone) and three watering treatments (daily, weekly, and biweekly) indicated that 1) neither mucilage nor watering treatments altered percent germination; 2) the presence of mucilage-rich fruits lessened the effects of drought on seedling development and decreased the degree of wilting; and 3) both treatments interacted in their effects on percent and cause of mortality. Citing Literature Volume72, Issue7July 1985Pages 1095-1105 RelatedInformation
Referência(s)