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Showing 1 to 14 of 14 for “"Ophiostoma"”.
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Sýkingarmætti grágeitarsveppsins Ophiostoma clavatum í fræplöntum skógarfuru
… pathogenic potential of the blue stain fungus Ophiostoma clavatum in Scots pine (Pinus sylvestris) seedlings was explored. Following climate change, in recent decades, an increased severity of the bark beetle Ips acuminatus attacks on Scots pine has been observed, both in Finland and in the …
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Comparative and Functional Analysis of Gene Expression in Ophiostoma Species
Ophiostoma floccosum and Ophiostoma piliferum are polymorphic ascomycete fungi found throughout the world. Both species are important economically as they are known to colonise timber and cause discoloration of wood thus reducing its aesthetic value and subsequently price. Albino variants of the …
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Factores anatómicos y químicos del xilema de Ulmus minor Mill. relacionados con la resistencia a Ophiostoma novo-ulmi Brasier
… más devastadora y difundida de los olmos. Ophiostoma novo-ulmi se desarrolla en el interior de los vasos del xilema cusando su cavitación. Este proceso origina marchitamiento foliar y, en la casi totalidad de los casos, la muerte del árbol. En el presente trabajo, se ha estudiado en U. …
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Reprogramming the expression of the double-stranded RNA mitovirus OnuMV1c from the mitochondria to the cytoplasm in the fungal pathogen Ophiostoma novo-ulmi
… is caused by the ascomycete fungal pathogen Ophiostoma novo-ulmi. A number of strategies have been used to attempt to mitigate the effects of DED but none have met any sustainable success, and the disease continues to have severe ecological and economic impacts. Consequently, research focus …
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Isolation of Cellulose Nanofibres: Elucidation of a Novel Approach Utilizing Fungal Pretreatment
… together. The pre-treatment of wood fibres with Ophiostoma Ulmi, a causative agent of Dutch elm disease in Elm trees, has found to reduce the energy requirement to isolate cellulose nanofibres. The treatment has found to bring about internal defibrillation in the fibres by disrupting the hydrogen …
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Etiologic studies of Verticicladiella procera Kendr. in pine Christmas trees
… probable genetic relatedness of this fungus with Ophiostoma (Ceratocystis) bluestain fungi. Inoculation studies revealed that the fungus could penetrate wounded sapwood, and that colonized seedlings had lower water potentials than uncolonized seedlings. In addition, it was found that the fungus …
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Estudio del comportamiento de enfermedades en bosques de pino (Pinus oocarpa Schiede ex Schltdl), en el municipio de San Fernando en Nueva Segovia
… los géneros de hongos: Fusarium sp. Ophiostoma sp y Graphium sp. como causantes de marchitez. El daño en acículas, amarillamiento del follaje y muerte de arboles, está asociado a factores bióticos y abióticos.
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MULTI-PARTNER MUTUALISMS: INTERACTIONS AMONG THE MOUNTAIN PINE BEETLE AND TWO OPHIOSTOMATOID FUNGAL ASSOCIATES
… (Dendroctonus ponderosae) and its two main ophiostomatoid fungal associates,Grosmannia clavigera and Ophiostoma montium, as well as interactions between the two fungi. The main research questions were: What drives bark beetle fungal interactions? What is the nature of the interaction between …
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MULTI-PARTNER MUTUALISMS: INTERACTIONS AMONG THE MOUNTAIN PINE BEETLE AND TWO OPHIOSTOMATOID FUNGAL ASSOCIATES
… (Dendroctonus ponderosae) and its two main ophiostomatoid fungal associates,Grosmannia clavigera and Ophiostoma montium, as well as interactions between the two fungi. The main research questions were: What drives bark beetle fungal interactions? What is the nature of the interaction between …
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Beetles or Bureaucrats? Reconsidering the United States' Failure to Stop Dutch Elm Disease
… United States to address the Dutch elm disease (Ophiostoma ulmi) epidemic that affected American elm (Ulmus americana) across the country. The disease, a fungus carried by beetles between trees, was introduced in 1930 in New York City and slowly spread across the Northeast United States and …
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The effects of temperature on fungal symbionts in the mountain pine beetle-fungus multi-partite symbiosis
… depends on two fungi, Grosmannia clavigera and Ophiostoma montium, to provide the nutrients required for the beetle to develop and reproduce. Competition between these two fungal associates is expected because they use similar resources. Strong competition should lead to the eventual …
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The effects of temperature on fungal symbionts in the mountain pine beetle-fungus multi-partite symbiosis
… depends on two fungi, Grosmannia clavigera and Ophiostoma montium, to provide the nutrients required for the beetle to develop and reproduce. Competition between these two fungal associates is expected because they use similar resources. Strong competition should lead to the eventual …
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Microwave-Assisted Extraction for the Isolation of Trace Systemic Fungicides from Woody Plant Material
… fungicide, used to combat the fungal pathogen Ophiostoma ulmi, the casual agent of Dutch elm disease (DED). It was successfully extracted from treated Ulmus americana (elm tree) using MAE with a percent recovery of 395% in 15 minutes. Until now, techniques for rapid and efficient extraction of …
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Mite and fungal associates on mountain pine beetles attacking three pines species in northern Colorado
… pine beetle carried Grosmannia clavigera and Ophiostoma montium, the two blue-stain species reported from western USA, but also Leptographium longiclavatum reported previously only from mountain pine beetle in Canada. Beetles transported the three blue-stain species to all three pine hosts …