Data/hora: 11/06/2024 13:14:32

Provedor de dados: | 39
País: | Brazil
Título: | Development of conceptacles in Amphiroa (Corallinales, Rhodophyta)
Autores: | Rosas-Alquicira,Edgar Francisco; Riosmena-Rodríguez,Rafael; Hernández-Carmona,Gustavo; Neto,Ana Isabel.
Data: | 2013-12-01
Ano: | 2013
Palavras-chave: | Carposporangial filament origin; Sporangium location; Sporangial pore canal anatomy; Senescence; Taxonomy.
Resumo: | Here, we describe the development of sporangial and gametangial conceptacles for Amphiroa beauvoisii and A. vanbosseae; sporangial conceptacles only for A. misakiensis; and gametangial conceptacles only for A. cryptarthrodia and A. rigida. The descriptions are based on the observation of histological preparations obtained from 112 specimens collected from the Gulf of California, in Mexico, and the Azores archipelago of Portugal. Information on the development of the sporangial conceptacle pore and conceptacle senescence is here described and illustrated for the first time. Four development patterns were observed: two for sporangial conceptacles; one for spermatangial conceptacles; and one for carposporangial conceptacles. The phases of development of the sporangial conceptacle were found to be useful in delimiting species within the genus. Based on the sporangium location on the cavity floor and the pore canal anatomy, the species A. beauvoisii, A. misakiensis and A. vanbosseae can be distinguished from each other.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062013000400008
Editor: | Sociedade Botânica do Brasil
Relação: | 10.1590/S0102-33062013000400008
Formato: | text/html
Fonte: | Acta Botanica Brasilica  v.27 n.4 2013
Fonte: | info:eu-repo/semantics/openAccess