نتایج جستجو برای: platychora ulmi
تعداد نتایج: 252 فیلتر نتایج به سال:
Invasive tree pathogens threaten forests worldwide, but their effects on streams are poorly understood. Nevertheless, infections that lead to changes in the characteristics of litter inputs may affect stream communities and ecosystem processes. We studied cross-ecosystem derived from Phytophthora cinnamomi, ×alni, Ophiostoma novo-ulmi infection Castanea sativa (chestnut), Alnus lusitanica (alde...
The systematic and long-term use of pesticides in fruit plantations leads to the formation resistant pest populations. purpose this work was evaluate effectiveness entomophages acariphages for protection apple orchards. Against dominant Cydia pomonella (Linnaeus), Habrobracon hebetor (Say) used, which caught Krasnodar Territory using cassettes with caterpillars attractive H. hebetor. To determi...
Many fungi form complex three-dimensional fruiting bodies, within which the meiotic machinery for sexual spore production has been considered to be largely conserved over evolutionary time. Indeed, much of what we know about meiosis in plant and animal taxa has been deeply informed by studies of meiosis in Saccharomyces and Neurospora. Nevertheless, the genetic basis of fruiting body developmen...
Editor: S. Woodward Summary Five cultivars and two populations of wildtype seedlings of American elm (Ulmus americana), 3 and 4 years old, were examined for differences in their abilities to compartmentalize and resist infection by artificially inoculating with Ophiostoma novo-ulmi. Morphological characteristics of tree defence, often referred to as the compartmentalization of decay in trees mo...
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