Resumen del producto

Conceptacles were studied in six Amphiroa J. V. Lamouroux species: A. beauvoisii J. V. Lamouroux, A. cryptarthrodia Zanardini, A. misakiensis Yendo, A. rigida J. V. Lamouroux, A. valonioides Yendo and A. vanbosseae Me. Lemoine. The development of the tetrasporangial conceptacles was found to be important in delimiting species within the genus. The present study also confirmed the importance of the development of the carposporangial filament in species segregation. Conceptacle senescence is here described and illustrated for the first time with four patterns observed, two for sporangial, one for the spermatangial and one for the carposporangial conceptacles. The complete development of the conceptacles por is her also firstly described and illustrated. Two stalk cells were observed and illustrated for the first time on the sporangia mother cell of A. misakiensis. Based on the location of sporangia on the cavity floor, the number of stalk cells on the sporangia mother cell, and the initial por development, the studied species can be organized in three distinct groups, one including A. beauvoisii, a second one including A. misakiensis and a third one including A. rigida, A. valonioides and A. vanbosseae. The present results suggest that these groups may represent different genera but further research is required.

Palabras clave: Enzyme expression; Amphiroa; seaweed; Conceptacle

Para obtener una copia del documento contacta la personal de la biblioteca a través del correo bibliocicimar{a}ipn.mx