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Título: Stomatal density distribution patterns in leaves of the Jatobá (Hymenaea courbaril L.)
Autor(es): Martins, Giordane Augusto
Soares, Angela Maria
Barbosa, João Paulo Rodrigues Alves Delfino
Mello, José Marcio de
Castro, Evaristo Mauro de
Ferraz Jr., Antonio Carlos
Assunto: Stomata
Geostatistics
Leaf expansion
Jatobá
Publicador: Springer
Data de publicação: Abr-2012
Referência: MARTINS, G. A. et al. Stomatal density distribution patterns in leaves of the Jatobá (Hymenaea courbaril L.). Trees, [S. l.], v. 26, n. 2, p. 571-579, Apr. 2012.
Abstract: Stomata are leaf structures that are essential for regulating gas exchange and water balance in terrestrial plants. Accurately quantifying stomatal characteristics is consequently of great importance for understanding the physiological processes of plants under different environmental conditions. The objective of this study was to investigate the spatial distribution pattern of stomata on leaflet surfaces, and the possible mechanisms that influence this pattern, particularly leaf expansion. To achieve this, we used geostatistical tools combined with an analysis of biometric relationships of leaves from Hymenaea courbaril L. Our analysis indicates that stomata show a clear spatial structure in this species: average values of foliar expansion rates (ERs) were different on right and left-hand sides of the primary venation of each leaflet and there was a close relationship between the spatial pattern of stomatal density and leaf expansion rate. Such differences in lateral expansion may therefore be partially responsible for the heterogeneous distribution of stomata documented here and in other studies.
URI: http://link.springer.com/article/10.1007/s00468-011-0620-4#enumeration
http://repositorio.ufla.br/jspui/handle/1/12457
Idioma: en_US
Aparece nas coleções: DCF - Artigos publicados em periódicos
DBI - Artigos publicados em periódicos

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