Vesicular Arbuscular Mycorrhiza
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. Desenvolvimento de inoculante microbiano promotor de crescimento de Schizolobium parahyba (Vell.) Blake
No contexto do desmatamento ocorrido ao longo dos anos no Estado do Paraná com a perda drástica da cobertura vegetal nativa e a crescente demanda por projetos de recuperação da mata ciliar, o estudo do Schizolobium parahyba (guapuruvú) para avaliar o seu potencial como fonte de madeira e de cobertura vegetal incrementar seu uso por ser uma espécie arb�
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/03/2012
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2. Uso de microorganismos promotores de crescimento como tecnologia para incrementar a produção de madeira e sequestro de carbono de Schizolobium amazonicum Huber ex Ducke (Paricá) em condições de campo
Schizolobium amazonicum Heber ex Ducke occurs naturally in Amazon and presents huge commercial importance due to its rapid growth and excellent performance on cropping systems a fact that has been raising much interest in the study of new strategies to increase more efficiently the wood yield. The use of soil microorganisms and its growth-promoting potent
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/04/2010
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3. Atividades enzimáticas na rizosfera de espécies leguminosas nativas mediadas por rizobactérias e micorrizas arbusculares
Early soil-quality indicators may be useful when monitoring plant reestablishment, especially in degraded environments. Among soil-quality indicators, soil enzymes may reflect the potential in turning some nutrients available for plants, since most of them are related to nutrients transformation in soil. Besides the intrinsic effects of vegetation on soil en
Publicado em: 2005
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4. Isolation and Identification of Vesicular-Arbuscular Mycorrhiza-Stimulatory Compounds from Clover (Trifolium repens) Roots
Two isoflavonoids isolated from clover roots grown under phosphate stress were characterized as formononetin (7-hydroxy,4′-methoxy isoflavone) and biochanin A (5,7-dihydroxy,4′-methoxy isoflavone). At 5 ppm, these compounds stimulated hyphal growth in vitro and root colonization of an undescribed vesicular-arbuscular mycorrhiza, a Glomus sp. (INVAM-112).
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5. Production of Plant Growth-Regulating Substances by the Vesicular-Arbuscular Mycorrhizal Fungus Glomus mosseae
Glomus mosseae, a representative species of Endogonaceae (Phycomycetes) able to form vesicular-arbuscular mycorrhiza, was investigated for phytohormone production. Spores of G. mosseae were axenically germinated in water, and the resultant mycelial growth was assayed by standard procedures for extracting plant hormones from microbial cultures. Paper partitio
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6. Membrane-Mediated Decrease in Root Exudation Responsible for Phorphorus Inhibition of Vesicular-Arbuscular Mycorrhiza Formation
The mechanism responsible for phosphorus inhibition of vesicular-arbuscular mycorrhiza formation in sudangrass (Sorghum vulgare Pers.) was investigated in a phosphorus-deficient sandy soil (0.5 micrograms phosphorus per gram soil) amended with increasing levels of phosphorus as superphosphate (0, 28, 56, 228 micrograms per gram soil). The root phosphorus con
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7. Rhizobial Nodulation Factors Stimulate Mycorrhizal Colonization of Nodulating and Nonnodulating Soybeans.
Legumes form tripartite symbiotic associations with noduleinducing rhizobia and vesicular-arbuscular mycorrhizal fungi. Co-inoculation of soybean (Glycine max [L.] Merr.) roots with Bradyrhizobium japonicum 61-A-101 considerably enhanced colonization by the mycorrhizal fungus Glomus mosseae. A similar stimulatory effect on mycorrhizal colonization was also o
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8. Carbon Cost of the Fungal Symbiont Relative to Net Leaf P Accumulation in a Split-Root VA Mycorrhizal Symbiosis 1
Translocation of 14C-photosynthates to mycorrhizal (+ +), half mycorrhizal (0+), and nonmycorrhizal (00) split-root systems was compared to P accumulation in leaves of the host plant. Carrizo citrange seedlings (Poncirus trifoliata [L.] Raf. × Citrus sinensis [L.] Osbeck) were inoculated with the vesicular-arbuscular mycorrhizal fungus Glomus intraradices S
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9. Effects of Metal Phytoextraction Practices on the Indigenous Community of Arbuscular Mycorrhizal Fungi at a Metal-Contaminated Landfill
Phytoextraction involves use of plants to remove toxic metals from soil. We examined the effects of phytoextraction practices with three plant species (Silene vulgaris, Thlaspi caerulescens, and Zea mays) and a factorial variation of soil amendments (either an ammonium or nitrate source of nitrogen and the presence or absence of an elemental sulfur supplemen
American Society for Microbiology.
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10. Glycine-Glomus-Rhizobium Symbiosis: V. Effects of Mycorrhiza on Nodule Activity and Transpiration in Soybeans under Drought Stress
Soybean (Glycine max [L.] Merr.) plants were nodulated (Bradyrhizobium japonicum) and either inoculated with the vesicular-arbuscular mycorrhizal (VAM) fungus Glomus mosseae (Nicol. & Gerd.) Gerd. and Trappe or left uncolonized. All plants were grown unstressed for 21 days initially. After this period, some VAM and non-VAM plants were exposed to four 8-day d