Populus Spp
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. Efficiency of treatments for controlling Trichoderma spp during spawning in cultivation of lignicolous mushrooms
Trichoderma spp is the cause of the green mold disease in mushroom cultivation production. Many disinfection treatments are commonly applied to lignocellulose substrates to prevent contamination. Mushroom growers are usually worried about the contaminations that may occur after these treatments during handling or spawning. The aim of this paper is to estimat
Braz. J. Microbiol.. Publicado em: 2014-12
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2. Genetic analysis of D-xylose metabolism by endophytic yeast strains of Rhodotorula graminis and Rhodotorula mucilaginosa
Two novel endophytic yeast strains, WP1 and PTD3, isolated from within the stems of poplar (Populus) trees, were genetically characterized with respect to their xylose metabolism genes. These two strains, belonging to the species Rhodotorula graminis and R. mucilaginosa, respectively, utilize both hexose and pentose sugars, including the common plant pentose
Genetics and Molecular Biology. Publicado em: 2011
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3. Adubação nitrogenada em sistema silvipastoril álamo: pastagens de inverno
O álamo (Populus spp.) apresenta rápido crescimento e vem sendo empregado comercialmente no Sul do Brasil desde meados dos anos de 1990. Pelo espaçamento utilizado em seu plantio, é consorciado com a pastagem, contribuindo para o melhor uso do solo e abatimento do custo da madeira. Visando potencializar o crescimento de culturas de inverno e do álamo em
Revista Árvore. Publicado em: 2009-06
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4. Métodos de avaliação da ferrugem do álamo e eficiência de fungicidas no seu controle
A ferrugem do álamo (Melampsora medusae Thuem.) causa sérios prejuízos no viveiro, e seu controle é fundamental para a obtenção de muda de boa qualidade. Este trabalho teve como objetivos: i) testar a eficiência de fungicidas de contato (mancozebe, cartap e oxicloreto de cobre) e sistêmicos (triadimenol, tebuconazole e difenoconazole) no controle da
Revista Árvore. Publicado em: 2008-10
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5. Clonagem, análise da seqüência do gene p74 e filogenia de um novo vírus isolado da lagarta-do-álamo Condylorrhiza vestigialis
Condylorrhiza vestigialis multiple nucleopolyhedrovirus (CvMNPV) é um baculovirus patogênico a lagartas de Condylorrhiza vestigialis (Guenée, 1854) (Lepidoptera: Crambidae), uma praga de uma espécie florestal, conhecida como Álamo (Populus spp., Salicaceae), de considerável importância econômica. Este baculovirus foi recentemente identificado e pouca
Publicado em: 2008
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6. Progresso de epidemias e avaliação de danos da ferrugem em clones de álamo
A ferrugem do álamo (Melampsora medusae) causa sérios prejuízos no viveiro e tem sido cada vez mais freqüente em plantações, principalmente nos clones mais suscetíveis. O comportamento dos clones em relação a epidemias de ferrugem nas plantações brasileiras não é conhecido. Este trabalho teve como objetivos quantificar o progresso de epidemias e
Fitopatologia Brasileira. Publicado em: 2006-04
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7. Differential Expression of Two Distinct Phenylalanine Ammonia-Lyase Genes in Condensed Tannin-Accumulating and Lignifying Cells of Quaking Aspen
Lignins, along with condensed tannins (CTs) and salicylate-derived phenolic glycosides, constitute potentially large phenylpropanoid carbon sinks in tissues of quaking aspen (Populus tremuloides Michx.). Metabolic commitment to each of these sinks varies during development and adaptation, and depends on l-phenylalanine ammonia-lyase (PAL), an enzyme catalyzi
American Society of Plant Physiologists.
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8. Wood-Destroying Soft Rot Fungi in the Historic Expedition Huts of Antarctica
Three expedition huts in the Ross Sea region of Antarctica, built between 1901 and 1911 by Robert F. Scott and Ernest Shackleton, sheltered and stored the supplies for up to 48 men for 3 years during their explorations and scientific investigation in the South Pole region. The huts, built with wood taken to Antarctica by the early explorers, have deteriorate
American Society for Microbiology.
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9. Profiling of Oligolignols Reveals Monolignol Coupling Conditions in Lignifying Poplar Xylem1[w]
Lignin is an aromatic heteropolymer, abundantly present in the walls of secondary thickened cells. Although much research has been devoted to the structure and composition of the polymer to obtain insight into lignin polymerization, the low-molecular weight oligolignol fraction has escaped a detailed characterization. This fraction, in contrast to the rather
American Society of Plant Biologists.
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10. Phenolic Profiling of Caffeic Acid O-Methyltransferase-Deficient Poplar Reveals Novel Benzodioxane Oligolignols1
Caffeic acid O-methyltransferase (COMT) catalyzes preferentially the methylation of 5-hydroxyconiferaldehyde to sinapaldehyde in monolignol biosynthesis. Here, we have compared HPLC profiles of the methanol-soluble phenolics fraction of xylem tissue from COMT-deficient and control poplars (Populus spp.), using statistical analysis of the peak heights. COMT d
American Society of Plant Biologists.