Responses of Fungi to Nutrient-Limiting Conditions and to Inhibitory Substances in Natural Habitats

Lockwood, J. L.; Filonow, A. B.

doi:10.1007/978-1-4615-8306-6_1

Cited by 67 publications

(23 citation statements)

References 185 publications

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“…The degree of infection on all three types of root was broadly similar, but barley plants in particular could support an extensive fungal biomass with little obvious effect on the plant. The formation of appressoria, which is a normal prerequisite for infection in the fungi that produce them, is often enhanced in the presence of microorganisms, sometimes because the saprophytes deprive the pathogens of nutrients (Lockwood & Filonow, 1981). The extensive covering of bacteria observed on the appressoria of F .…”

Section: Discussionmentioning

confidence: 99%

Root Residues: Substrates Used By Fusarium Culmorum To Infect Wheat, Barley And Ryegrass

Gussin¹,

Lynch²

1983

Microbiology

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Fusarium culmorum was grown on different natural substrates and its subsequent pathogenicity towards wheat, barley and ryegrass studied. This fungus caused more inhibition of plant growth of all test species when grown on root residues than when present as a spore suspension in sand. More wheat seedlings were killed when sown into infected ryegrass root residues than when sown into infected wheat or barley residues. However, when ryegrass was sown into infected ryegrass roots no plant death occurred compared with over 50% when sown into infected wheat or barley. Dressing ryegrass seeds with a formulation containing calcium peroxide gave some control of F. culmorum. These results are discussed in relation to the problems that can sometimes occur following reseeding of grassland.

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Section: Discussionmentioning

confidence: 99%

Root Residues: Substrates Used By Fusarium Culmorum To Infect Wheat, Barley And Ryegrass

Gussin¹,

Lynch²

1983

Microbiology

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“…rnissouriensis may become established around the sporosphere of fungal spores or its immediate neighbourhood and, as a result of this, fungistasis may occur. An association between enhanced exudation and germination repression of fungal spores in soil or in model systems imposing energy stress has been demonstrated (Arora et ul., 1983b;Lockwood & Filonow, 1983). In the present study a significant relationship between enhanced exudation and germination repression was not found when zoospores were incubated for 60 min in the presence of 14C-labelled conidia, chlamydospores or sclerotia (unpublished results).…”

Section: Discussionmentioning

confidence: 94%

“…After 60 min, agar blocks were placed in scintillation vials (one block per vial) and crushed into several small pieces. Scintillation cocktail (Long, 1976) (10 ml) was added to each vial and counts were corrected using a [ 14C]toluene standard (Filonow & Lockwood, 1983). Radioactivity present in the fungal spores was measured in a liquid scintillation spectrometer.…”

Section: Actinoplanes a Missouriensismentioning

confidence: 99%

Chemotaxis of Actinoplanes missouriensis Zoospores to Fungal Conidia, Chlamydospores and Sclerotia

Arora

1986

Microbiology

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The chemotactic response of Actinoplanes missouriensis zoospores to three different types of fungal spores (conidia of Curvularia lunata, chlamydospores of Fusarium solani and sclerotia of Macrophominaphaseolina) and their exudates was examined in vitro and in soil. Zoospores were attracted in vitro to substances exuded by fungal spores and to a number of organic compounds but not to sodium phosphate buffer solution. Numbers of zoospores attracted to spores of C . lunata, F. solani or M . phaseolina and their exudates, mixed in a sterilized soil, were significantly (P = 0.05) greater than to soil only supplemented with buffer. Movement of zoospores in an unsterilized soil to conidia, chlamydospores or sclerotia was significantly greater (P = 0.05) than background populations occurring in soil held at 0, -10 and -50 mbar matric potential. Attraction of zoospores to fungal spores and (or) their exudates was generally in the order of conidia > chlamydospores > sclerotia both in vitro and in soil. The results suggest that compounds exuded by living fungal spores may act as attractant for motile Actinoplanes zoospores.

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“…The increase in nitrogen and/or phosphorus concentration in oligotrophic freshwaters has been reported to raise species richness (Gulis & Suberkropp 2003). Some fungi are sensitive to the action of waste substances (Bär-locher 1981, Lockwood & Filonow 1981, Graca 1994, Dick 2001. Because freshwater fungi are sensitive to changes in water quality, studies on the biodiversity of aquatic hyphomycetes may help to show the effects of water pollution.…”

Section: Discussionmentioning

confidence: 99%

Diversity and dynamics of the fungal community in Lake Ohrid

Comic¹,

Ranković²,

Novevska³

et al. 2010

Aquat. Biol.

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Responses of Fungi to Nutrient-Limiting Conditions and to Inhibitory Substances in Natural Habitats

Cited by 67 publications

References 185 publications

Root Residues: Substrates Used By Fusarium Culmorum To Infect Wheat, Barley And Ryegrass

Root Residues: Substrates Used By Fusarium Culmorum To Infect Wheat, Barley And Ryegrass

Chemotaxis of Actinoplanes missouriensis Zoospores to Fungal Conidia, Chlamydospores and Sclerotia

Diversity and dynamics of the fungal community in Lake Ohrid

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