نتایج جستجو برای: forest fungi

تعداد نتایج: 149383  

Journal: :European Journal of Forest Research 2021

Abstract Drought in the forest is not only a prolonged state of water shortage, but also an occasion where interactions between plants and fungi are affected. Water efficiency accelerates range pathologies organisms, influencing ecosystems their interacting biological components. This study focuses on role mycorrhizal endophyte alleviating effects soil impact altered activity during drought hea...

Journal: رستنیها 2011
J. Bujari M. Zahedi S.A. Elahinia S.A. Khodaparast,

Several leaf spotting or blotching fungal diseases occur on forest trees in Guilan province (N Iran). Some of them such as maple tar spot affect health of host trees severely, but many are of minor effect. This study was carried out to identify unknown and less known fungi causing leaf spot and leaf blotch diseases on broad leaf trees in this region. So far numerous fungi were collected. Four s...

مهدی کرمی, شهرام, کاوسی, محمدرضا, کرمی, اکرم,

 Maple tap spot is one of the fungal diseases which has been infected maple trees. Early deciduous, the disappearance of leaf, reduction of growth, seed and wood production of maple trees are resulted due to this disease. The objective of this research was isolation and identification of the pathogen on leaves of Acer velutinum in Dr. Bahramnia educational and research forest (Shast-Kalateh of ...

2000
William J. Otrosina

MUCh attention is now given to risks and impacts of exotic pest introductions in forest ecosystems. This concern is for good reason because, once introduced, an exotic pathogen or insect encounters little resistance in the native plant population and can produce catastrophic losses in relatively short periods of time. Most native fungal pathogens of forest trees have co-evolved for eons with th...

2005
Richard C. Summerbell

In a study of fungi growing in various root-associated habitats in and around Picea mariana, black spruce, in northern Ontario, Canada, an examination was made of the degree to which differences in growth sites within an area of a few square kilometers might influence the structure of root-associated filamentous microfungal populations. Picea mariana roots were collected at four strongly differ...

1999
Barbara L. Illman

Brown-rot fungi are Basidiomycetes that remove cellulose and other polysaccharides from wood, leaving an amorphous, brown, crumbly residue that is composed largely of lignin, hence the name brown-rot. Decay by brown-rot fungi is by far the most serious type of damage to wood in-service. These fungi cause structural failure before losses in total wood substance are detected. The effect of brown-...

Journal: :Maderas-ciencia Y Tecnologia 2021

Forest trees are considered important in ameliorating climate change through removing carbon dioxide from the atmosphere, stabilizing water catchments and for timber production. Wood decay fungi among most biotic factors ecosystems, infecting valuable landscaping causing an economic loss or preeminent recyclers of wood. In a survey forest Alamdardeh forest, northern Iran, fungal fruit bodies we...

Journal: :Bulletin of entomological research 2012
B Wang C Salcedo M Lu J Sun

Interactions between invasive insects and their fungal associates have important effects on the behavior, reproductive success, population dynamics and evolution of the organisms involved. The red turpentine beetle (RTB), Dendroctonus valens LeConte (Coleoptera: Scolytinae), an invasive forest pest in China, is closely associated with fungi. By carrying fungi on specialized structures in the ex...

Journal: :Molecular ecology 2012
Melissa K McCormick D Lee Taylor Katarina Juhaszova Robert K Burnett Dennis F Whigham John P O'Neill

Mycorrhizal fungi have substantial potential to influence plant distribution, especially in specialized orchids and mycoheterotrophic plants. However, little is known about environmental factors that influence the distribution of mycorrhizal fungi. Previous studies using seed packets have been unable to distinguish whether germination patterns resulted from the distribution of appropriate edaph...

2017
Panu Halme Jan Holec Jacob Heilmann-Clausen

Biodiversity surrogates are commonly used in conservation biology. Here we review how fungi have been used as such in forest conservation, emphasizing proposed surrogate roles and practical applications. We show that many fungal surrogates have been suggested based on field experience and loose concepts, rather than on rigorously collected scientific data. Yet, they have played an important rol...

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