Data/hora: 09/06/2024 17:57:46

Provedor de dados: | Acta Botanica Brasilica
País: | Brazil
Título: | Morphoanatomy and ontogeny of fruit in Bromeliaceae species
Autores: | Fagundes,Natividad Ferreira; Mariath,Jorge Ernesto de Araujo.
Data: | 2010-09-01
Ano: | 2010
Palavras-chave: | Anatomy; Bromeliaceae; Development; Ovary; Pericarp.
Resumo: | This study aims to give an overall view of fruit structure in Bromeliaceae, since these studies are extremely scarce in this family, showing the morphology, anatomy and ontogeny of fruits of six species belonging to six different genera, representing three subfamilies. All species studied have a tricarpellary and trilocular ovary, with an obturator covering the placental region. Dyckia maritima, Pitcairnia flammea, Tillandsia aeranthos and Vriesea carinata have capsular fruits (septicidal or biscidal), characterized mainly by the presence of macrosclereids in the exocarp or endocarp, fibers in the ventral region of the carpels, six dehiscence lines and three vascular bundles in each carpel. Aechmea calyculata and Billbergia nutans have fruits classified as berries, presenting exocarp and hypodermis as mechanical layers and many vascular bundles in each carpel. Many useful characters for taxonomy of Bromeliaceae were revealed, so fruits are excellent tools for delimitation of genera and subfamilies. In relation to Bromeliaceae capsules, macrosclereids are conspicuous structures of the pericarp and fruit anatomy is greatly related to dehiscence type. The U-shaped cell wall thickenings are a very common character in this family and can be identified as structures also occurring in monocot fruits.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062010000300020
Editor: | Sociedade Botânica do Brasil
Relação: | 10.1590/S0102-33062010000300020
Formato: | text/html
Fonte: | Acta Botanica Brasilica  v.24 n.3 2010
Fonte: | info:eu-repo/semantics/openAccess