Data/hora: 10/06/2024 07:36:50

Provedor de dados: | 39
País: | Brazil
Título: | Comparative leaf anatomy of some species of Abies and Picea (Pinaceae)
Autores: | Ghimire,Balkrishna; Lee,Chunghee; Yang,Jongcheol; Heo,Kweon.
Data: | 2015-09-01
Ano: | 2015
Palavras-chave: | Abies; Leaf anatomy; Picea; Scanning electron microscopy; Taxonomy.
Resumo: | ABSTRACTA number of conifer species are still lacking anatomical data, which is significant because morphological and anatomical data are essential for systematic study. Leaf anatomy was studied in selected species of Abiesand Piceausing light and scanning electron microscopy. Both genera were found to have typical coniferous and highly xerophytic leaves with sunken stomata and an epidermis covered by a thick cuticle. In the genus Abies, species can be differentiated by the nature of the lignified hypodermis and the number and position of resin ducts. Abies firma and A. holophylla have a continuous hypodermis whereas in A. koreana and A. nephrolepis the hypodermis is discontinuous and represented by isolated cells or groups of four or five cells. On the other hand, in Picea leaf shape, stomata arrangement, and number, position, and nature of resin ducts are the key features for species differentiation. Picea jezoensis has a flattened leaf with stomata distributed on the adaxial surface whereas P. abies and P. koraiensis have a rectangular leaf with stomata found on surfaces.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062015000300346
Editor: | Sociedade Botânica do Brasil
Relação: | 10.1590/0102-33062014abb0009
Formato: | text/html
Fonte: | Acta Botanica Brasilica  v.29 n.3 2015
Fonte: | info:eu-repo/semantics/openAccess