Showing papers in "Fungal Biology in 1989"

TL;DR: A modified technique for staining roots to detect VA mycorrhizas is described and success has been achieved with angiosperm, fern, lycopod and psilophyte roots and bryophyte.

TL;DR: This lecture reviews important aspects of the physiology of common kinds of mycorrhiza and considers their relevance to the ecological importance of these symbioses.

TL;DR: Many grasses harbour systemic clavicipitaceous endophytes in their leaves, stems, and seeds which have applied potential as biocontrol agents against insect pests of grasses although their utilization may be limited to non-pasture situations.

TL;DR: The results suggest that different species of vesicular-arbuscular mycorrhizal fungi have different survival strategies for existence at the study site, and that the MPN method underestimates the number of propagules.

TL;DR: Intra- and interspecific variation of thirty-two isolates assignable to the genus Beauveria was evaluated using 64 morphological and biochemical characters, finding spore form was the most useful criterion to distinguish between species.

TL;DR: Seasonal dynamics of five vesicular-arbuscular mycorrhizal fungi occurring in a Massachusetts sand dune were examined and high levels of spore abundance for one species in a sample were associated with significantly lower levels of sporulation by the other species in the same sample, suggesting antagonistic interactions between species.

TL;DR: The new generic name Nattrassia type species N. mangiferae is introduced for the fungus formerly known as Hendersonula toruloidea and the synanamorph is named Scytalidium dimidiatum (Penz).

TL;DR: It is concluded that the HSI phenotype results from a mutation at a nuclear gene designated hsil that governs the ability of the fungal hyphae to anastomose and is under the control of a single nuclear gene.

TL;DR: Cluster analysis (UPGMA, Unweighted Pair-Group Method using Arithmetic means) indicated that mtDNA fragment patterns were similar among isolates of the same, and dissimilar among isolate of different, biological species.

TL;DR: Almost all 5- to 6-yr-old twigs of healthy and diseased white fir and Norway spruce were colonized by at least one fungal taxon, and air pollutants are suspected as possible causes of changes in endophyte populations.

TL;DR: Conditions which favoured a filamentous morphology were correlated with increased blastospore production and the water activity of the nutrient feed was reduced by the incorporation of 2·4 M PEG.

TL;DR: Ten morphologically distinct types of ascospores were recognized from the bodies of 17 species of mites associated with adults of Ips typographus collected from pheromone traps in Sweden, with the most pathogenic of the blue-stain species noted on nine mite species.

TL;DR: Scanning electron microscopy revealed that the antagonists had caused complete collapse of the mycelium and conidia with no sign of hyphal invasion.

TL;DR: A Burkard jet spore sampler was set up as a volumetric ‘viable’ spore trap at two alpine sites of lower and two sites of higher altitude, providing valuable information for diagnosis, therapy and prophylaxis of allergic diseases.

TL;DR: The relationship of Camillea with other xylariaceous genera, particularly with those applanate species of Hypoxylon which have light-coloured ascospores ornamented with reticulations or ribs is discussed.

TL;DR: Investigation of the production of metabolites which are toxic to the spruce budworm by endophytic fungi in balsam fir and red spruce needles found five strains produced extractable compounds that resulted in mortality and/or a reduced rate of development in spruce Budworm larvae.

TL;DR: Comparisons of Rhizoctonia isolates support recognizing AG4 as a distinct species, Thanatephorus praticola , but do not support recognizing T. sasakii or Corticium microsclerotium as taxa distinct from T. cucumeris.

TL;DR: The recovery of the SRF was more frequent from the roots of wheat, rye-grass, oats, barley and great brome than peas, lupins, medic subterranean clover and chick pea which are used as rotation crops with the wheat.

TL;DR: Cultural characteristics of four species in the Ganoderma lucidum complex from North America were studied and previously undescribed structures which are termed hyphal rosettes were produced, composed of several hyphal branches projecting from a common origin and are not found in other species.

TL;DR: Sphacelia sorghi, the ergot pathogen of sorghum in Zimbabwe, causes copious exudation of honeydew containing macroconidia.

TL;DR: The growth of numerous fungi isolated from a range of soils, on carbon-free silica gel media suggests that low levels of available carbon in soil should not prevent limited growth of the fungi.

TL;DR: The data indicate that isolates of N. sitophila and N. tetrasperma comprise convex and presumably monophyletic groups, but this is not true for isolates that reflect divergences in ancestral Neurospora that predate the divergence of 4- and 8-spored species.

TL;DR: The most active isolate was that of Pseudomonas stutzeri which was obtained from a sporophore of H. crustuliniforme and induced ca 21% of spores of the fungus to germinate within 1 cm of its colonies.

TL;DR: The effects of a number of polyamine biosynthetic inhibitors on the growth of four species of necrotrophic fungi were examined in vitro, and DFMO was the least effective inhibitor.

TL;DR: Eighty-three isolates of Phytophthora infestans from The Netherlands have been selected for analysis of nuclear Feulgen-DNA (F-DNA) content, mating type and metalaxyl sensitivity, and it was determined that 38 of the A1 isolates were tetraploid, 5 triploid and 2 diploid.

TL;DR: A sequence of phases suggests a basis for hindgut specificity and host specificity in Smittium species through passage through host guts and in vitro extrusion experiments.

TL;DR: Airborne fungal spores were collected continuously (1977–1982) using volumetric samplers at three sites in Kuwait and thirty-seven spore types were identified, of which five genera contributed to 80% of the total count.

TL;DR: Of thirty-three isolates of members of the form genera Acremonium and Cephalosporium screened for exopolysaccharide production, thirty proved positive in a medium with a high C:N ratio, suggesting that the materials from strains giving the highest yields are homopolymers of glucose, β-glucans.

TL;DR: Magnaporthe poae sp.