Role of the arbuscular mycorrhizal symbiosis in tolerance response against Armillaria mellea in lavender
Visualitza/Obre
Data de publicació
2015-08-28ISSN
1695-971X
Resum
Lavender species form the arbuscular mycorrhizal symbiosis and are at the same time highly susceptible to white root rot. In an attempt to evaluate the response of mycorrhizal Lavandula angustifolia L. to Armillaria mellea (Vahl:Fr) P. Kumm in a greenhouse experiment, plants were previously inoculated with an isolate of the arbuscular mycorrhizal fungus Rhizophagus irregularis (former Glomus intraradices BEG 72) and the influence of the pH growing medium on the plant-symbiont-pathogen interaction was tested
in gnotobiotic autotrophic growth systems in which mycorrhizal inoculum was obtained from root organ cultures. After ten months growth dual-inoculated lavender plants grown in containers with a pasteurized substrate mixture produced a similar number of spikes than healthy plants and achieved equivalent plant diameter coverage. When the growing medium in the autotrophic systems was supplemented with calcium carbonate, the inoculation of lavender plantlets with R. irregularis at higher pH (7.0 and 8.5) media caused a significant decrease of A. mellea presence in plant roots, as detected by qPCR. Moreover, the observation of internal root mycorrhizal infection showed that the extent of mycorrhizal colonization increased in plant roots grown at higher pH, indicating that tolerance to white root rot in lavender plants inoculated with R. irregularis could be associated to mycorrhizal establishment.
Tipus de document
Article
Versió del document
Versió publicada
Llengua
English
Matèries (CDU)
632 - Malalties i protecció de les plantes
Pàgines
8
Publicat per
Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria
Publicat a
Spanish Journal of Agricultural Research
Citació
Calvet, Cinta, Francesc Garcia-Figueres, Paulo Lovato, and Amelia Camprubi. 2015. "Role Of The Arbuscular Mycorrhizal Symbiosis In Tolerance Response Against Armillaria Mellea In Lavender". Spanish Journal Of Agricultural Research 13 (3): e1008. doi:10.5424/sjar/2015133-7677.
Número de l'acord de la subvenció
MICINN/Programa Nacional de Proyectos de Investigación Fundamental/AGL2010-15017/ES/DESAROLLO BIOTECNOLOGICO DE LOS PROCESOS DE MICORRIZACION Y DE TRAZABILIDAD PARA LA GESTION SOSTENIBLE DE EXPLOTACIONES AGRARIAS Y DE ENTORNOS PAISAJISTICOS/
Programa
Protecció Vegetal Sostenible
Aquest element apareix en la col·lecció o col·leccions següent(s)
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