Interactions between an arbuscular mycorrhizal fungus (Scutellospora heterogama) and the root-knot nematode (Meloidogyne incognita) on sweet passion fruit (Passiflora alata)

Brazilian Archives of Biology and Technology

Érika Cristina Teixeira Dos Anjos²  Uided Maaze Tiburcio Cavalcante²  Danielle Maria Correia Gonçalves²  Elvira Maria Regis Pedrosa¹  Venézio Felipe Dos Santos¹  Leonor Costa Maia² 

[1] ,Universidade Federal de Pernambuco Departamento de Micologia Recife PE ,Brasil

关键词: AMF;    biological control;    mycorrhizal symbiosis;    nematode reproduction;    Passifloraceae;   

DOI  :  10.1590/S1516-89132010000400008

来源: SciELO

【 摘 要 】

The effects of inoculation of sweet passion fruit plants with the arbuscular mycorrhizal (AM) fungus Scutellospora heterogama on the symptoms produced by Meloidogyne incognita race 1 and its reproduction were evaluated in two greenhouse experiments. In the 1st, the M. incognita (5000 eggs/plant) and S. heterogama (200 spores/plant) inoculations were simultaneous; in the 2nd, the nematodes were inoculated 120 days after the fungal inoculation. In both the experiments, 220 days after AM fungal inoculation, plant growth was stimulated by the fungus. In disinfested soil, control seedlings (without S. heterogama) were intolerant to parasitism of M. incognita, while the growth of mycorrhized seedlings was not affected. Sporulation of S. heterogama was negatively affected by the nematodes that did not impair the colonization. M. incognita did not affect mycorrhizal seedling growth. The establishment of mycorrhiza prior to the nematode infection contributed for the reduction of symptoms severity and reproduction of M. incognita in disinfested soil.

【 授权许可】

CC BY-NC   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License