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A survey of ryegrass endophyte (Acremonium loliae) in the U.K. and its apparent ineffectually on a seedling pest

Published online by Cambridge University Press:  27 March 2009

G. C. Lewis  and
R. O. Clements
G. C. Lewis
Affiliation:
The Animal and Grassland Research Institute, Hurley, Maidenhead, Berks., SL6 5LR
R. O. Clements
Affiliation:
The Animal and Grassland Research Institute, Hurley, Maidenhead, Berks., SL6 5LR
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Summary

Acremonium loliae is an endophytic fungus which infects plants of perennial ryegrass (Lolium perenne), an important pasture grass in New Zealand and much of Western Europe. In New Zealand the endophyte–ryegrass association was found recently to give rise to tremorgenic substances (lolitrem A and B), which are the cause of a serious disorder of grazing and domestic livestock there. The endophyte also confers resistance in ryegrass plants to certain insect pests in New Zealand and enhances plant growth even in the absence of pests. In the present work 61 swards at 52 widespread sites in the U.K. were checked for the presence of endophyte mycelium, and it was found in 14 swards, of which 12 were at least 15 years old. ELISA (enzyme-linked immunosorbent assay) tests confirmed that the fungus was A. loliae. Also, lolitrem B was detected in plants from most of the sites where the mycelium was found; this appears to be the first time this tremorgen has been reported in the U.K. or perhaps in Europe. In a small-plot experiment at two sites with newly sown perennial ryegrass the endophyte appeared to have no effect on infestation by frit fly larvae, a major pest of seedling ryegrass plants. Also, in the present work, the endophyte had no measurable effect on the growth or overwinter mortality of larvae.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 107 , Issue 3 , December 1986 , pp. 633 - 638
Copyright
Copyright © Cambridge University Press 1986

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References

REFERENCES

Clements, R. O., Bentley, B. R., Moore, D. & Spaull, A. M. (1985). The impact of a range of pesticide treatments on newly-sown Italian ryegrass (Lolium multiflorum) and on frit fly (Oscinella spp.) infestation. Crop Protection 4, 245–254.Google Scholar
Fletcher, L. R. & Harvey, I. C. (1981). An association of a Lolium endophyte with ryegrass staggers. New Zealand Veterinary Journal 29, 185–186.Google Scholar
Gallagher, R. T., Hawkes, A. D. & Stewart, J. M. (1985). Rapid determination of the neurotoxin lolitrem B in perennial ryegrass by high-performance liquid chromatography with fluorescence detection. Journal of Chromatography 321, 217–226.CrossRefGoogle ScholarPubMed
Gallagher, R. T., White, E. P. & Mortimer, P. H. (1981). Ryegrass staggers: isolation of potent neurotoxins lolitrem A and lolitrem B from staggersproducing pastures. New Zealand Veterinary Journal 29, 189–190.CrossRefGoogle ScholarPubMed
Harvey, I. C, Fletcher, L. R. & Emms, L. M. (1982). Effects of several fungicides on the Lolium endophyte in ryegrass plants, seeds and culture. New Zealand Journal of Agricultural Research 25, 601–606.CrossRefGoogle Scholar
Latch, G. C. M., Christensen, M. J. & Samuels, G. J. (1984). Five endophytes of Lolium and Festuca in New Zealand. Mycotaxon 20, 535–650.Google Scholar
Latch, G. C. M., Hunt, W. F. & Musgrave, D. R. (1985). Endophytic fungi affect growth of perennial ryegrass. New Zealand Journal of Agricultural Research 28, 165–168.Google Scholar
Lewis, G. C. & Clements, R. O. (1986). Endophyte infected ryegrass seed – the story so far. British Crop Protection Council Monograph 33. Symposium on Health Planting Material, pp. 211–216.Google Scholar
Musgrave, D. R. (1984). Detection of an endophytic fungus of Lolium perenne using enzyme-linked immunosorbent assay (Elisa). New Zealand Journal of Agricultural Research 27, 282–288.Google Scholar
Prestidge, R. A. & Gallagher, R. T. (1985). Lolitrem B – a stem weevil toxin isolated from Acremonium infected ryegrass. Proceedings of the 38th New Zealand Weed and Pest Control Society Conference, pp. 38–40.Google Scholar
Prestidge, R. A., Pottinger, R. P. & Barker, G. M. (1982). An association of Lolium endophyte with ryegrass resistance to Argentine stem weevil. Proceedings of the 35th New Zealand Weed and Pest Control Society Conference, pp. 119–122.Google Scholar
Sampson, K. (1937). Further observations on the systemic infection of Lolium. Transactions of the British Mycological Society 21, 84–96.Google Scholar
Sampson, K. (1939). Additional notes on the systemic infection of Lolium. Transactions of the British Mycological Society 23, 316–319.Google Scholar
Siegel, M. R., Latch, G. C. M. & Johnson, M. C. (1985). Acremonium fungal endophytes of tall fescue and perennial ryegrass; significance and control. Plant Disease, 02, 179–181.Google Scholar
Stewart, A. V. (1985). Perennial ryegrass seedling resistance to Argentine stem weevil. New Zealand Journal of Agricultural Research 28, 403–407.Google Scholar