Showing papers in "Fungal Biology in 1991"

TL;DR: The number of known species in the world is conservatively estimated at 1·5 million; six-times higher than hitherto suggested; this realization has major implications for systematic manpower, resources, and classification.

TL;DR: A method for routine staining of large numbers of samples of mycorrhizas which uses the less hazardous combination of aniline blue or methyl blue and glycerol is described.

TL;DR: Fungi colonizing leaf disks in the laboratory exhibited higher ATP concentrations and sporulation rates than the communities from either stream, and these differences appear to be related to water chemistry, particularly N and P concentrations.

TL;DR: One hundred and sixty-two isolates representing worldwide sources of Phytophthora cambivora, P. cinnamomi and C. cactorum were compared using 18 isozyme loci separated by starch-gel electrophoresis to allow clear differentiation of the three species.

TL;DR: The results of this isozyme analysis suggest that the papillate species of Group II of Waterhouse's (1963) scheme may form at least six distinct evolutionary lines.

TL;DR: The results showed that benzimidazole resistance and dicarboximide resistance are each encoded by a single polymorphic major gene, neither of which is linked to the MAT1 mating type gene.

TL;DR: A relationship has been established between inoculum pressure, pH and boron concentration which influences pathogenesis by Plasmodiophora brassicae and strong correlations were obtained between the inhibition of sporangial maturation and eventual symptom expression.

TL;DR: Interfertility among European and North American strains of Heterobasidion annosum was examined in hetero- x homokaryon pairings with testers of known intersterility group affiliation and heterokaryotic European F group strains were highly interfertile with the North American S group.

TL;DR: The distinctive sexual stage forms the basis of describing the African material as a new Claviceps species which also uniquely elaborates a group of dihydrogenated ergot alkaloids that are biosynthetic intermediates leading to the principal product dihydroergosine.

TL;DR: It is estimated that the fungal component of the soil could immobilize the total radiocaesium fallout received in upland grasslands following the Chernobyl accident.

TL;DR: Further studies have shown the type of M. molleriana to be incorrectly measured, and that the two species are conspecific, with M. nubilosa being a synonym of the earlier described M. Molleriana.

TL;DR: Results were interpreted as indicating that phenotypic plasticity is variable among populations of G. mosseae but not sufficient to explain the wide distribution of this fungus.

TL;DR: This is the first record of Leptographium procerum, L. serpens and L. wingfieldii from the United Kingdom.

TL;DR: The resolution of intraradical mycelium, vesicles and arbuscules of vesicular-arbuscular mycorrhizal fungi, stained with acid fuchsin, is enhanced by epifluorescence illumination.

TL;DR: In this paper, alder and oak twigs were placed at five sites along a gradient of stream order and pH in the river Teign, Devon, England to simulate stream conditions.

TL;DR: Results of cluster and correspondence analysis indicated that the aquatic and soil root samples are characterized by two different endophyte populations, including water-submerged roots as substrata for aquatic hyphomycetes.

TL;DR: Activity staining of the gel revealed six distinct zymogram groups which corresponded with three different intersterility groups in Europe, two IS groups in North America and one group in Australasia.

TL;DR: The results suggest that for the analysis of V. albo-atrum the most useful parasexual cross would be between a lucerne and a non-lucerne isolate and that for that species' dahliae sufficiently disparate pairs of isolates exist.

TL;DR: The combined results of isozyme and mtDNA analysis indicate that there are at least seven distinct molecular species represented by the 123 isolates of P. cryptogea and P. drechsleri evaluated in this study.

TL;DR: A model of the spatial dispersion of populations of vesicular-arbuscular mycorrhizal fungal spores within a root zone revealed a network of rhizomes, many of which were not connected to the original plant and are no longer detectable in the soil profile.

TL;DR: Fermentation broths of Cryptosporiopsis sp.

TL;DR: Endophytes with intercellular mycelium characteristic of Acremonium coenophialum were isolated from tall fescue plants grown from 38 seed collections of cultivars and ecotypes from Europe, Algeria, North America, Australia and New Zealand and significant cultural, morphological and physiological variation existed among the isolates examined.

TL;DR: Assessed by incidence and timing of parasitic events in replicate interactions, P. oligandrum and Pythium SWO were significantly more aggressive than P. nunn across a range of hosts or to hosts.

TL;DR: Endogenous reserves of blastospores from carbon- and nitrogen-limited cultures declined during storage at 25°, and were related biphasically to spore longevity.

TL;DR: The variation observed within isolates indicates the need for reappraisal of the taxonomy of Acremonium sect.

TL;DR: Analysis of restriction fragment length polymorphisms indicated that mtDNA fragment patterns can be used as additional taxonomic characters for delimiting Laccaria spp.

TL;DR: Fewer spores germinated on insect wings than on agar medium and of the three spore types studied, maximal germination on insect Wings was observed with nitrogen-limited blastospores, which was significantly less virulent than conidia.

TL;DR: It is concluded that rapid growth and the ability to tolerate low oxygen pressure are important attributes for primary invaders, allowing tree resistance mechanisms to be overcome following mass inoculation.

TL;DR: The effect of a basidiome stimulatory Pseudomonas putida isolate on hyphal growth of the cultivated mushroom, Agaricus bisporus, and the effect of P. putida on dry weight of fungal material was investigated.

TL;DR: Accumulation of scytalone in the sal1 mutant indicated that the melanin of this fungus is formed from 1,8-dihydroxynaphthalene, derived in turn from pentaketide, and that the genetically deficient step in this mutant was at the conversion of scynthetic pathway.