A Gompertz regression model for fern spores germination

  1. Gabriel y Galán, Jose María 2
  2. Prada, Carmen 2
  3. Martínez-Calvo, Cristina 1
  4. Lahoz-Beltrá, Rafael 1
  1. 1 Department of Applied Mathematics (Biomathematics), Faculty of Biological Sciences, Universidad Complutense de Madrid
  2. 2 Department of Plant Sciences (Botany), Faculty of Biological Sciences, Universidad Complutense
Revista:
Anales del Jardín Botánico de Madrid

ISSN: 0211-1322

Año de publicación: 2015

Volumen: 72

Número: 1

Tipo: Artículo

DOI: 10.3989/AJBM.2405 DIALNET GOOGLE SCHOLAR lock_openDialnet editor

Otras publicaciones en: Anales del Jardín Botánico de Madrid

Resumen

La germinación es uno de los procesos biológicos más relevantes tanto para las plantas con esporas, como para las plantas con semillas y los hongos. Hasta el momento, se han desarrollado modelos de germinación para hongos, briofitos y diversas especies de espermatófitos. Los helechos son el único grupo de plantas cuya germinación nunca ha sido modelizada. En este trabajo se desarrolla un modelo de regresión para explicar la germinación de las esporas de helechos. Observamos que para las especies Blechnum serrulatum, Blechnum yungense, Cheilanthes pilosa, Niphidium macbridei y Polypodium feuillei el modelo de crecimiento de Gompertz describe satisfactoriamente la germinación acumulativa. Un importante resultado es que los parámetros de la regresión son independientes de la especie y que el modelo no está afectado por variación intraespecífica. Por lo tanto, los resultados del trabajo muestran que la curva de Gompertz puede representar un modelo general para todos los helechos leptosporangiados de esporas no verdes. Se incluyen, adicionalmente, comentarios sobre el significado fisiológico y ecológico del modelo.

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