Response of mycorrhizal periwinkle plants to aster yellows phytoplasma infection.
Mycorrhiza
; 20(3): 161-6, 2010 Mar.
Article
en En
| MEDLINE
| ID: mdl-19756778
ABSTRACT
The objective of our research was to assess if arbuscular mycorrhizal (AM) fungal colonization can modify the effect of infection by two aster yellows phytoplasma strains (AY1, AYSim) in Catharanthus roseus plants. Both phytoplasma strains had a negative effect on the root fresh weight, but they differed in symptoms appearance and in their influence on photosynthetic and transpiration rates of the periwinkle plants. AM plants showed significantly reduced shoot fresh weight, while the transpiration rate was significantly increased. AM fungal colonization significantly affected shoot height and fresh weight of the plants infected by each phytoplasma strains as well as the root system of plants infected with the more aggressive AYSim phytoplasma strain. Double inoculation did not reduce the negative effects induced with phytoplasma alone on the photosynthetic activity of phytoplasma-infected plants.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Enfermedades de las Plantas
/
Catharanthus
/
Micorrizas
/
Phytoplasma
Idioma:
En
Revista:
Mycorrhiza
Asunto de la revista:
BIOLOGIA
Año:
2010
Tipo del documento:
Article
País de afiliación:
Polonia