TY - JOUR
T1 - Development of conceptacles in Amphiroa (Corallinales, Rhodophyta)
AU - Rosas-Alquicira, Edgar Francisco
AU - Riosmena-Rodríguez, Rafael
AU - Hernández-Carmona, Gustavo
AU - Neto, Ana Isabel
PY - 2013/12
Y1 - 2013/12
N2 - 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.
AB - 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.
KW - Carposporangial filament origin
KW - Senescence
KW - Sporangial pore canal anatomy
KW - Sporangium location
KW - Taxonomy
UR - http://www.scopus.com/inward/record.url?scp=84892731168&partnerID=8YFLogxK
U2 - 10.1590/S0102-33062013000400008
DO - 10.1590/S0102-33062013000400008
M3 - Artículo
SN - 0102-3306
VL - 27
SP - 698
EP - 708
JO - Acta Botanica Brasilica
JF - Acta Botanica Brasilica
IS - 4
ER -