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http://repositorio.ufla.br/jspui/handle/1/37373| Title: | Relationship between pollen morphology and chromosome numbers in Brazilian species of Lippia L. (Verbenaceae) |
| Keywords: | Chromosome numbers Lippia Palynology Palynomorphology Pollen Verbenaceae |
| Issue Date: | 2013 |
| Publisher: | Academia Brasileira de Ciências |
| Citation: | SOUSA, S. M. et al. Relationship between pollen morphology and chromosome numbers in Brazilian species of Lippia L. (Verbenaceae). Anais da Academia Brasileira de Ciências, [S.l.], v. 85, n. 1, p. 147-157, 2013. |
| Abstract: | The pollen morphology and exine structure of 17 species of Lippia L. were investigated in this work using light and scanning electron microscopy. Among the species studied, 14 showed tricolporate pollen grains, two had tri- and tetracolporate pollen grains and a single species exhibited, only tetracolporate pollen. The amb ranged from triangular to square, and the shape varied from oblate-spheroidal to prolate-spheroidal. Three different types of exine ornamentation were observed: psilate, scabrate and perforate. In addition to morphological data, we found positive association between the chromosome numbers and size of pollen grains, and also between the length and width of the colpi. The results indicate that the characteristics of pollen grains in Lippia may be used as an additional taxonomic character of the genus. |
| URI: | http://repositorio.ufla.br/jspui/handle/1/37373 |
| Appears in Collections: | DBI - Artigos publicados em periódicos |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| ARTIGO_Relationship between pollen morphology and chromosome numbers in Brazilian species of Lippia L. (Verbenaceae).pdf | 984,27 kB | Adobe PDF | View/Open |
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