Mutualistic Fungus
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. Comparison of radial growth rate of the mutualistic fungus of Atta sexdens rubropilosa forel in two culture media
In vitro culture of the mutualistic fungus of leaf-cutting ants is troublesome due to its low growth rate, which leads to storage problems and contaminants accumulation. This paper aims at comparing the radial growth rate of the mutualistic fungus of Atta sexdens rubropilosa Forel in two different culture media (Pagnocca B and MEA LP). Although total MEA LP
Brazilian Journal of Microbiology. Publicado em: 2010-06
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2. Óleo essencial de eucalipto como bioestimulador da micorrização e do estabelecimento de mudas de eucalipto e sibipiruna em solo contaminado com cobre / Essential oil of eucalyptus as biostimulator of mycorrhiza and the eucalyptus and sibipiruna tree establishment in soil contaminated with copper
Ectomycorrhizal fungi (fECM) combined with the plant root system improve the absorption of water and nutrients, providing great plant growth, especially in environments with nutritional deficiency or degraded. Due to the fECM and plants live in mutualistic association, allows the fungal symbionts to be benefit, or at least tolerate, the secondary metabolites
Publicado em: 2010
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3. Influence of caffeine in the survival of leaf-cutting ants Atta sexdens rubropilosa (Hymenoptera: Formicidae) and to in vitro growth of the mutualistic fungus / Influência da cafeína na sobrevivência de saúvas Atta sexdens rubropilosa (hymenoptera: Formicidae) e no crescimento in vitro de seu fungo mutualista
The leaf-cutting ants (Hymenoptera-Formicidae) are found from south of United States to Argentina. They are common florest herbivorous which collect plant material to feed a specific mutualist fungus. These insects are known by their ecological role at soil aeration, water permeation and nutrient cycling. Human activities, like deforestation and agriculture,
Publicado em: 2008
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4. Bula da glândula metapleural de formigas cortadeiras: inferências quanto à defesa antimicrobiana / Bulla of the metapleural glands of leafcutter ants: Inferences as the antimicrobial defences
Leafcutter ants live in a world of complex interactions, the most notable being their cultivation of a mutualistic fungus on vegetable subtrates. These ants, and their mutualistic fungus gardens, are at risk from attack by parasitic microorganisms. To defend themselves and their mutualist, they have antimicrobial defences, such as substances secreted from th
Publicado em: 2008
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5. The evolution of fungus-growing termites and their mutualistic fungal symbionts
We have estimated phylogenies of fungus-growing termites and their associated mutualistic fungi of the genus Termitomyces using Bayesian analyses of DNA sequences. Our study shows that the symbiosis has a single African origin and that secondary domestication of other fungi or reversal of mutualistic fungi to a free-living state has not occurred. Host switch
National Academy of Sciences.
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6. Reduced biological control and enhanced chemical pest management in the evolution of fungus farming in ants
To combat disease, most fungus-growing ants (Attini) use antibiotics from mutualistic bacteria (Pseudonocardia) that are cultured on the ants' exoskeletons and chemical cocktails from exocrine glands, especially the metapleural glands (MG). Previous work has hypothesized that (i) Pseudonocardia antibiotics are narrow-spectrum and control a fungus (Escovopsis
The Royal Society.
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7. Reconstruction of the historical changes in mycorrhizal fungal communities under anthropogenic nitrogen deposition.
Archived soil samples (1937-1999) and historic air quality data from the Los Angeles Basin were used for reconstructing the record of change between atmospheric NO(x) loads, soil delta(15)N values and the diversity of arbuscular mycorrhizae (AM), which are ubiquitous plant-fungus mutualists that control plant community productivity. A tripling of atmospheric
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8. Endophytic Fungal β-1,6-Glucanase Expression in the Infected Host Grass1
Mutualistic fungal endophytes infect many grass species and often confer benefits to the hosts such as reduced herbivory by insects and animals. The physiological interactions between the endophytes and their hosts have not been well characterized. Fungal-secreted proteins are likely to be important components of the interaction. In the interaction between P
American Society of Plant Biologists.