نتایج جستجو برای: phytopathogenic fungi
تعداد نتایج: 45830 فیلتر نتایج به سال:
The Oxalate Salt of P-Aminodimethylaniline, an Improved Reagent for the Oxidase Test: Charles M. Carpenter, Leif G. Suhrland, and Martha Morrison ............................... 649 Histochemical Method for the Detection of Phosphorylase in Plant Tissues: H. C. Yin and C. N. Sun 650 Use of Aerosol OT in Dissecting Salivary Glands of Mosquitoes Infected With Malaria: Edward S. Josephson, William...
The major threat to crops posed by fungal diseases results in the use by growers of enormous amounts of chemicals. Of these, quinol oxydation inhibitors (QoIs) are probably the most successful class of agricultural fungicides. QoIs inhibit mitochondrial respiration in fungi by binding to the Qo site of the cytochrome bc1 complex, blocking electron transfer and halting ATP synthesis. Unfortunate...
The broad application of chemical crop protectants and intensive plant breeding for the devel opm ent o f agriculture and the management of plant disease have created conditions of environ mental concern. Molecular genetic methods are being applied to the analysis of phytopathogenic fungi and their corresponding diseases. Rapid developm ent o f this research field will permit the isolation an...
The fungal cell wall not only plays a critical role in maintaining cellular integrity, but also forms the interface between fungi and their environment. The composition of the cell wall can therefore influence the interactions of fungi with their physical and biological environments. Chitin, one of the main polysaccharide components of the wall, can be chemically modified by deacetylation. This...
Many studies have reported horizontal gene transfer (HGT) events from eukaryotes, especially fungi. However, only a few investigations summarized multiple interkingdom HGTs involving important phytopathogenic species of Pyrenophora and few have investigated the genetic contributions of HGTs to fungi. We investigated HGT events in P. teres and P. tritici-repentis and discovered that both species...
Intracellular osmotic pressure plays important roles in the growth and pathogenicity of phytopathogenic filamentous fungi. However, the regulatory mechanism of turgor generation in pathogenesis or adaptation to osmolarity changes is poorly understood. We are analyzing the functions of histidine kinases in these processes. Knockout of a histidine kinase gene of the rice blast fungus caused sugar...
Aimed at developing novel fungicides for relieving the ever-increasing pressure of agricultural production caused by phytopathogenic fungi, 28 new hydrazone derivatives of carabrone, a natural bioactive sesquisterpene, in three types were designed, synthesized and their antifungal activities against Botrytis cinerea and Colletotrichum lagenarium were evaluated. The result revealed that all the ...
Diaporthales is an important ascomycetous order comprising phytopathogenic, saprobic, and endophytic fungi, but interfamilial taxonomic relationships are still ambiguous. Despite its cosmopolitan distribution and high diversity with distinctive morphologies, this order has received relativelyiaceae, Macrohilaceae, Melanconidaceae, Pseudoplagiostomaceae, Schizoparmaceae, Stilbosporaceae and Sydo...
Nine indole derivatives were evaluated in vitro against Fusarium graminearum, Alternaria alternata, Helminthosporium sorokinianum, Pyricularia oryzae, Fusarium oxysporum f. sp. vasinfectum, Fusarium oxysporum f. sp. cucumarinum, and Alternaria brassicae. Most of the compounds were found to possess antifungal activities. Especially compounds 2, 5, 8, and 9 exhibited broad-spectrum antifungal act...
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