COMPARISON OF LEAF MORPHOLOGY AMONG SUBMERSED SPECIES OP MYRIOPHYLLUM(HALORAGACEIIE) FROM DIFFERENT HABITATS AND GEOGRAPHICAL DISTRIBUTIONS

Authors
Citation
Dt. Gerber et Dh. Les, COMPARISON OF LEAF MORPHOLOGY AMONG SUBMERSED SPECIES OP MYRIOPHYLLUM(HALORAGACEIIE) FROM DIFFERENT HABITATS AND GEOGRAPHICAL DISTRIBUTIONS, American journal of botany, 81(8), 1994, pp. 973-979
Citations number
53
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Plant Sciences
Journal title
ISSN journal
0002-9122
Volume
81
Issue
8
Year of publication
1994
Pages
973 - 979
Database
ISI
SICI code
0002-9122(1994)81:8<973:COLMAS>2.0.ZU;2-D
Abstract
An image analysis system was used to calculate the surface area and vo lume of the submerged leaves of seven species of Myriophyllum. We sepa rated the species into two categories based on their distribution and habitat differences and compared their surface area, volume, dry mass, specific leaf area, and surface to volume ratios. The geographic loca tion and habitat of the species explained the greatest percentage of t otal variance for these variables when compared by analysis of varianc e. A leaf shape analysis was performed by regressing surface area with volume for each species. Interspecific comparisons of leaf shape were made using analysis of covariance. Fundamental interspecific differen ces in submerged leaf shape, associated with differences in their geog raphic distributions and habitats, are explained as adaptations for di fferent nutrient uptake regimes.