Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Germination ecology of the perennial Centaurium somedanum, a specialist species of mountain springs
Year:2012
Research Areas
  • Natural sciences and health sciences
Information
Abstract
To improve understanding of how a rare endemic species of Centaurium adapts to a specialized ecological niche, we studied the germination ecology of the mountain spring specialist, C. somedanum, a perennial species restricted to an unusual habitat for this genus. We conducted laboratory experiments with fresh seeds collected from two populations for three consecutive years, to investigate: (1) the effect of temperature and light ongermination; (2) the existence of seed dormancy; and (3) inter-population and inter-annual variation in germinability. Germination occurred only in the light and at relatively low temperatures (15-228ºC) with no differences between constant and alternating regimes, and a significant decrease at high temperatures (258ºC and 308ºC). We found non-deep simple morphophysiological dormancy and variation in seed germinability depending on the year of seed collection. C. somedanum diverged from the common germination characteristics of the genus in: (1) its germination at lower temperatures, which contrasts with what is generally expected in wetland species but could be adaptive in the spring habitat; and (2) its morphophysiological dormancy, which we report here for the first time in the genus and which could be an adaptation to its mountain habitat.
International
Si
JCR
Si
Title
Seed Science Research
ISBN
0960-2585
Impact factor JCR
1,059
Impact info
Volume
10.1017/s0960258512000062
Journal number
22
From page
195
To page
205
Month
SIN MES
Ranking
Participants
  • Autor: Eduardo Fernández-Pascual (Jardín Botánico Atlántico, Universidad de Oviedo)
  • Autor: Borja Jiménez-Alfaro (Jardín Botánico Atlántico, Universidad de Oviedo)
  • Autor: Ana I. García-Torrico (Jardín Botánico Atlántico, Universidad de Oviedo)
  • Autor: Felix Perez Garcia (UPM)
  • Autor: Tomás E. Díaz ((Jardín Botánico Atlántico, Universidad de Oviedo)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Biodiversidad y conservación de recursos fitogenéticos
  • Departamento: Biología Vegetal
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
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