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Memorias de investigación
Ponencias en congresos:
Seed germination of the endangered species Thymus lotocephalus G. López & R. Morales (Lamiaceae)
Año:2010
Áreas de investigación
  • Biodiversidad
Datos
Descripción
Thymus lotocephalus G. López & R. Morales (Lamiaceae) is a rare species endemic from the Algarve region, Portugal, and little information is known about this plant. The species is legally protected under the European Habitats Directive 92/43/CEE and by the Portuguese law (reference 140/99 from April 24). Biotechnological approaches offer several conservation possibilities which have the potential to support in situ protection strategies and provide complementary conservation options. However, before the application of ex situ conservation approaches (e.g. cryopreservation, ex situ plant propagation and populations restoration) it is important to study the seed germination requirements of the species. Thus, the goal of this work was to investigate the germination requirements of T. lotocephalus seeds under controlled conditions. The presowing treatments studied were: dry heat, cold, mechanical scarification, acid scarification, soaking in distilled water and soaking in gibberellic acid. Untreated (control) and pre-treated seeds were incubated under a 16-h light photoperiod at 25 ¿ 2 ºC. It was observed that untreated seeds presented a final germination percentage around 50% and dormancy of T. lotocephalus seeds was not broken by heat. From the treatments tested, only soaking in gibberellic acid significantly improved germination, with a germination percentage higher than the control (more than 80%). From these preliminary results, it can be concluded that the main cause of seed dormancy present in T. lotocephalus seems to be physiological and can be overcome by immersing the seeds in gibberellic acid.
Internacional
Si
Nombre congreso
XVII Congress of the Federation of European Societies of Plant Biology
Tipo de participación
960
Lugar del congreso
Valencia, España
Revisores
Si
ISBN o ISSN
DOI
Fecha inicio congreso
04/07/2010
Fecha fin congreso
09/07/2010
Desde la página
102
Hasta la página
102
Título de las actas
Seed germination of the endangered species Thymus lotocephalus G. López & R. Morales (Lamiaceae).
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: M. Elena Gonzalez Benito (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Biodiversidad y conservación de recursos fitogenéticos
  • Departamento: Biología Vegetal
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