Symbiotic Associations
Mostrando 1-12 de 51 artigos, teses e dissertações.
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1. Characterization of Ectomycorrhizal species through molecular biology tools and morphotyping
ABSTRACT: Mycorrhizae are mutualistic associations between fungi and plant roots. These symbiotic associations are abundant and occur in 75 to 80 % of plants. Ectomycorrhizal fungi are very important in ecosystems, because their mutualistic association with plants of different species helps nutrients and water absorption, as well as protection of the host pl
Sci. agric. (Piracicaba, Braz.). Publicado em: 2018-05
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2. Holobionts and their hologenomes: Evolution with mixed modes of inheritance
Abstract Symbioses are ubiquitous and have played an influential role in the evolution of life on Earth. Genomic studies are now revealing a huge diversity of associations among hosts and their microbiotas, allowing us to characterize their complex ecological and evolutionary dynamics. The different transmission modes and the asynchronous cell proliferation
Genet. Mol. Biol.. Publicado em: 01/03/2018
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3. Genetic Variability and Symbiotic Efficiency of Erythrina velutina Willd. Root Nodule Bacteria from the Semi-Arid Region in Northeastern Brazil
ABSTRACT Legume-rhizobia symbiosis is a cross-kingdom association that results in large amounts of nitrogen incorporated in food webs. For the Brazilian semi-arid region, data on genetic variability and symbiotic efficiency of Papilionoidae rhizobial communities are very scarce. The aim of this study was to evaluate the genetic variability and the symbiotic
Rev. Bras. Ciênc. Solo. Publicado em: 06/02/2017
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4. Occurrence of periodontal pathogens among patients with chronic periodontitis
The aim of the present study was to evaluate the presence of the periodontal pathogens that form the red complex (Tannerella forsythia, Porphyromonas gingivalis and Treponema denticola) and Aggregatibacter actinomycetemcomitans in patients with chronic periodontitis. The sample consisted of 29 patients with a clinical and radiographic diagnosis of chronic pe
Braz. J. Microbiol.. Publicado em: 2012-09
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5. Crescimento de mudas de Acacia mangium Willd. em resposta a nitrogênio, fósforo e micorriza / Seedlings Growth of Acacia mangium Willd. in response at nitrogen, phosphorus and mycorrhiza
O presente trabalho teve como objetivo avaliar em casa de vegetação a interação entre doses de fósforo (P) e nitrogênio (N) na produção de mudas de Acacia mangium Willd., em presença ou ausência de fungos micorrízicos arbusculares (FMAs) nativos. O substrato utilizado foi uma mistura de Latossolo Vermelho-Amarelo com areia em proporção 3:1. Util
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/06/2011
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6. Inoculation with mycorrhizal fungi modifies proline metabolism and increases chromium tolerance in pepper plants (Capsicum annuum L.)
In general, heavy metals interfere with several physiological processes and reduce plant growth. Plants naturally establish symbiotic associations with soil microorganisms, such as mycorrhizal fungi. The aim of this research was to determine if inoculation with mycorrhizal fungi increases tolerance to Cr, evidenced by growth and biochemical parameters and th
Brazilian Journal of Plant Physiology. Publicado em: 2011
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7. Mirmecofilia em Parrahasius polibetes (Lepidoptera: Lycaenidae) : historia natural, custos, seleção de planta hospedeira e beneficios da co-correncia com hemipteros mirmecofilos / Mymecophily ion Parrhansius polibetes (Lepidoptera: Lycaenidae) : natural history costs, host-plant selection, and benefits of co-ocurrece with myrmecophilous hemipterans
Ants are one of the most prominent groups of terrestrial organisms in terms of diversity, relative abundance and biomass. Their importance is due primarily to eusocial behavior combined with complex communication systems. Tropical foliage is rich in renewable feeding sources that promote ant foraging. As some of the most important predators on plants, ants s
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/04/2010
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8. Mycorrhizal diversity in Coppensia doniana (Orchidaceae) and phylogeny of mycorrhizal fungi associated with the Oncidiinae subtribe / Diversidade micorrízica em Coppensia doniana (Orchidaceae) e filogenia de fungos micorrízicos associados à subtribo Oncidiinae
In nature, orchids are fully dependent on mycorrhizal fungi for germination. These fungi can penetrate root cells and form pelotons, whose digestion provides simple sugars for the embryo. During the achlorophyllous seedling stage, orchids are obligatory dependent on the fungi, and some species remain so through life, while others become facultatively respons
Publicado em: 2010
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9. Endossimbiose de Tetranychus evansi Baker e Pritchard (Acari: Tetranychidae) e a resposta de defesa induzida em tomateiro / Endosymbioses of Tetranychus evansi Baker and Pritchard (Acari: Tetranychidae) and tomato induced defence response
Interactions between arthropods and microorganisms have been receiving more attention due to the impact that these symbiotic associations causes on their macrosymbionts. Reproduction is the main biological parameters affected with cytoplasmic incompatibility and thelytokous parthenogenesis; however, endosymbionts can help arthropods to exploit host plants. I
Publicado em: 2010
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10. Identification and characterization of genes differentially expressed during arbuscular mycorrhiza development in sugarcane / Identificação e caracterização de genes com expressão diferencial durante o desenvolvimento de micorrizas arbusculares em cana-de-açúcar
Arbuscular mycorrhizae (AM) are mutualistic symbiotic associations between fungi of the order Glomales and most of the terrestrial plants. The molecular mechanisms regulating AM development and efficiency are not well understood so that agricultural large scale application is so difficult. Although so many approaches are being used to the identification of d
Publicado em: 2008
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11. Análises do proteoma de raízes de cana-de-açúcar e da expressão de uma peroxidase apoplástica responsiva à micorriza arbuscular / Analysis of the sugarcane roots proteome and expression of an arbuscular mycorrhizaresponsive apoplastic peroxidase
Arbuscular mycorrhizae (AM) are symbiotic associations between fungi of the phylum Glomeromycota and most of the plant species. Even though the molecular mechanisms controlling the colonization process and AM development are largely unknown, proteins with differential accumulation in AM may have important regulatory roles. The aim of this work was to detect,
Publicado em: 2006
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12. Formação de micorriza arbuscular e análise do transcritoma de raízes de cana-de-açúcar colonizadas por Glomus clarum na presença de herbicidas / Arbuscular mycorrhizal formation and transcriptome analyses of sugarcane roots colonized by Glomus clarum in the presence of herbicides
The arbuscular mycorrhizae (AM) are symbiotic root-fungus associations that play a key role in natural and agricultural ecosystems, through the enhancement of nutrients absorption in the soil and its transference into the plants. The AM may promote the growth of many plants, among them are the sugarcane. Even thought the herbicide utilized in the agriculture
Publicado em: 2006