Do microfungi help to induce the phototoxic disease alveld in Norway?

Aas, Oddfrid; Ulvund, MJ

doi:10.1136/vr.124.21.563-a

Cited by 13 publications

(2 citation statements)

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“…Another factor which could play a role was the pres ence of saponins in the T. terrestris plants (Watt & Breyer-Brandwijk 1962). Aas & Ulvund (1989) speculated that P. chartarum, especially the sporidesmin present on bog asphodel and saponins, may be involved in the aetiology of alveld (a hepatogenous photosensitivity) in Norway. Since then, Kellerman et al (1991) have shown that saponins on their own are able to induce hepatogenous pho to sen sitiv ity in som e sheep.…”

Section: P Hotosensitizationmentioning

confidence: 99%

A survey of the mycobiota of a natural Karoo pasture

Roux

Warmelo²

1997

Bothalia

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The survey of a natural Karoo pasture from 1978 to 1982 showed that a wealth and variety of fungi were present in the semidesert environment. Hyphomycetes and Coelomycetes represented 45.8% and 34.6% respectively of the taxa identified. A total of 135 genera was identified of which Altenaria altemata, Cladosporium spp. and Fusarium spp. of the Hyphomycetes, Phoma spp., Ascochyta spp. and Camarosporium spp. of the Coelomycetes and Leptasphaerulina spp., of the Ascomycetes represented the most prevalent fungi in this order. This survey has shown conclusively that Pithomyces chartarum, which is associated with photosensitivity diseases of sheep, can always be recovered from the veld if the correct isolation techniques are employed. A number of new records for South Africa, as well as undescribed species, have been found, highlighting the necessity of correct methods and intensity of approach.

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Section: P Hotosensitizationmentioning

confidence: 99%

A survey of the mycobiota of a natural Karoo pasture

Roux

Warmelo²

1997

Bothalia

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“…Ulvund (1984Ulvund ( , 1988 found bile duct lesions similar to those of geeldikkop in lambs with acute alveld and postulated that alveld might be caused by saponins plus mycotoxins. When Aas and Ulvund (1989) found P. chartarum spores amongst the microfungi on leaves of N. ossifragum and other plants from areas of western Norway in which alveld occurs, they suggested that sporidesmin might be involved in the pathogenesis of alveld.…”

Section: Introductionmentioning

confidence: 96%

Fungi onNarthecium ossifragum leaves and their possible involvement in alveld disease of Norwegian lambs

Menna

Flåøyen

Ulvund³

1992

Vet Res Commun

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Spores of Pithomyces chartarum (Berk. & Curt.) M.B. Ellis were only rarely seen on leaves of Narthecium ossifragum (L.) Hudson collected in summer from five areas in western Norway in which alveld, a photosensitization disease of lambs, is endemic. Cladosporium magnusianum (Jaap) M.B. Ellis was found on all 118 leaf samples collected in the summers of 1990 and 1991. The hypothesis that P. chartarum contributes to the aetiology of alveld could not be supported, but it is possible that C. magnusianum may have a role in the causation of the disease.

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Do Steroidal Saponins Have of Role in Hepatogenous Photosensitization Diseases of Sheep?

Flåøyen¹

1996

Advances in Experimental Medicine and Biology

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Do microfungi help to induce the phototoxic disease alveld in Norway?

Cited by 13 publications

References 0 publications

A survey of the mycobiota of a natural Karoo pasture

A survey of the mycobiota of a natural Karoo pasture

Fungi onNarthecium ossifragum leaves and their possible involvement in alveld disease of Norwegian lambs

Do Steroidal Saponins Have of Role in Hepatogenous Photosensitization Diseases of Sheep?

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