TY - JOUR
T1 - Record of reproductive structures of three species of the Order Bryopsidales (Chlorophyta, Ulvophyceae) from the Mexican Caribbean
AU - Acosta-Calderón, Julio Adulfo
AU - Mateo-Cid, Luz Elena
AU - Mendoza-González, Ángela Catalina
AU - García-López, Deisy Yazmín
N1 - Publisher Copyright:
© 2019 All Rights Reserved
PY - 2019
Y1 - 2019
N2 - Background and Aims: Despite the ecological importance of Bryopsidales species in marine tropical ecosystems, little is known about the reproductive aspects of the Mexican Caribbean species. The study of the reproductive structures contributes useful elements to the understanding of aspects of the life cycle, taxonomy and phylogeny. The main objective is to describe and illustrate the reproductive structures of Avrainvillea digitata, A. nigricans f. floridana and Halimeda incrassata. Methods: Fertile thalli were collected from four sample sites in the Biosphere Reserve of Sian Ka’ an, Quintana Roo, Mexico. Descriptions of the morphology and anatomy of the thalli, as well as of the structure and size of the reproductive structures were elaborated. Key results: In A. digitata, sporangia are claviform whereas they are ellipsoidal in A. nigricans f. floridana. In both species of Avrainvillea the structures develop as projections of the siphons from the thalli apical portion. In H. incrassata, gametophores arise from the terciary utricle and carry eight to 10 piriform gametangia. Conclusions: This work represents the first morphological description of reproductive structures of Avrainvillea digitata, A. nigricans f. floridana and Halimeda incrassata from the Mexican Caribbean.
AB - Background and Aims: Despite the ecological importance of Bryopsidales species in marine tropical ecosystems, little is known about the reproductive aspects of the Mexican Caribbean species. The study of the reproductive structures contributes useful elements to the understanding of aspects of the life cycle, taxonomy and phylogeny. The main objective is to describe and illustrate the reproductive structures of Avrainvillea digitata, A. nigricans f. floridana and Halimeda incrassata. Methods: Fertile thalli were collected from four sample sites in the Biosphere Reserve of Sian Ka’ an, Quintana Roo, Mexico. Descriptions of the morphology and anatomy of the thalli, as well as of the structure and size of the reproductive structures were elaborated. Key results: In A. digitata, sporangia are claviform whereas they are ellipsoidal in A. nigricans f. floridana. In both species of Avrainvillea the structures develop as projections of the siphons from the thalli apical portion. In H. incrassata, gametophores arise from the terciary utricle and carry eight to 10 piriform gametangia. Conclusions: This work represents the first morphological description of reproductive structures of Avrainvillea digitata, A. nigricans f. floridana and Halimeda incrassata from the Mexican Caribbean.
KW - Avrainvillea
KW - Halimeda
KW - Quintana Roo
KW - gametangia
KW - sporangia
UR - http://www.scopus.com/inward/record.url?scp=85096975104&partnerID=8YFLogxK
U2 - 10.21829/abm126.2019.1459
DO - 10.21829/abm126.2019.1459
M3 - Artículo
AN - SCOPUS:85096975104
SN - 0187-7151
VL - 126
SP - 1
EP - 11
JO - Acta Botanica Mexicana
JF - Acta Botanica Mexicana
ER -