Hydrochory in seeds of Agave victoriae-reginae T. Moore endangered species: Morphology and anatomy as facilitators of hydro-dispersion and germination

Authors

  • Jaime Sánchez-Salas Universidad Juárez del Estado de Durango, México
  • Joel Flores Instituto Potosino de Investigación Científica y Tecnológica, A.C. (IPICYT), México
  • Enrique Jurado Universidad Juárez del Estado de Durango, México
  • Jorge Sáenz-Mata Universidad Juárez del Estado de Durango, México
  • Pedro Orozco-Figueroa Universidad Juárez del Estado de Durango, México
  • Gisela Muro Pérez Universidad Juárez del Estado de Durango, México

Keywords:

dispersal mechanisms, flood and floating, hydrochory

Abstract

Agave victoriae-reginae is an endemic species from Chihuahuan Desert which grows on canyon walls. It has flattened seeds that can be dispersed during episodic flood events. This study was focused on examining possible morphological and anatomical adaptations which promote seed hydro-dispersion. A morphological and anatomical seed analysis by scanning electron microscopy (SEM) was performed. Aspects of permeability, flotation, germination and germination rate (T50) for treatment and seed sizes were evaluated. The seeds are different in length, diameter, thickness, but not in weight; lacryform semi-flat shape and covered with porous air chambers in the hypodermis and were considered neutral photoblastic. We conclude that seeds of A. victoriae-reginae have hydro-dispersion characteristics.

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Published

2017-12-30

How to Cite

(1)
Sánchez-Salas, J.; Flores, J. .; Jurado, E.; Sáenz-Mata, J.; Orozco-Figueroa, P.; Muro Pérez, G. Hydrochory in Seeds of Agave Victoriae-Reginae T. Moore Endangered Species: Morphology and Anatomy As Facilitators of Hydro-Dispersion and Germination. Gayana Bot. 2017, 74, 251-261.

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Section

ORIGINAL ARTICLES