Abstract
Forage grasses (e.g., Lolium spp. andFestuca spp.) have long been known to harbour fungi which maintain an intercellular relationship with leaf tissue of the host. These endophytic fungi are considered to be the source of toxins which accumulate in infected grasses and are the cause of physiological disorders in grazing sheep and cattle. On the other hand, these same endophytes contribute to the resistance of the host plant to certain pests. Few investigators have examined the extent to which the fungal endophyte invades different parts of the grass. Our studies have recently concentrated on the mechanism by which the endophytes ofF. arundinacea andF. versuta invade the embryo and thus establish residence in successive host generations.
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References
Aasen A J, Culvenor C C J, Finnie E P, Kellock A W and Smith L W 1969 Alkaloids as a possible cause of ryegrass staggers in grazing livestock;Aust. J. Agric. Res. 20 71–86
Ahmed A, Nelson T S, Daniels L B, Piper E L and Beasley J N 1982 Fescue toxicosis: progress toward identification of its cause;Arkansas Farm Res. 32 7
Barker G M, Pottinger R P and Addison P J 1983 Effect of tall fescue and ryegrass endophytes on Argentine stem weevils;Proc. N.Z. Weed Pest Conf. 36 216–219
Clark E M, White J F and Patterson R M 1983 Improved histochemical techniques for the detection ofAcremonium coenophialum in tall fescue and methods of in vitro culture of the fungus;J. Microbiol. Methods 1 149–155
Clay K 1984 The effect of the fungusAtkinsonella hypoxylon (Clavicipitaceae) on the reproductive system and demography of the grassDanthonia spicata;New Phytol. 98 165–175
Cole G T 1986 Preparation of microfungi for scanning electron microscopy. In:Ultrastructure techniques for microorganisms eds H C Aldrich and W J Todd (New York: Plenum Press)
Davis C B, Camp B J and Reed J C 1983 The vasoactive potential of halostachine, an alkaloid of tall fescue (Festuca arundinacea Schreb.) in cattle;Vet. Hum. Toxicol. 25 408–411
Fineran B A, Harvey I C and Ingerfeld M 1983 Unusual crystalloids and aggregates of tubules in theLolium endophyte of ryegrass leaf sheaths;Protoplasma 117 17–23
Fletcher L R 1982 Observations of ryegrass staggers in weaned lambs grazing different ryegrass pastures;N. Z. J. Exp. Agric. 10 203–207
Fletcher L R and Harvey I C 1981 An association of aLolium endophyte with ryegrass stagers.N. Z. Vet. J. 29 185–186
Freeman E M 1904 I. The seed-fungus ofLolium temulentum L., the darnel;Philos. Trans. 196 1–27
Funk C R, Halisky P M, Johnson M C, Siegel M R, Stewart A V, Ahmad S, Hurley R H and Harvey I C 1983 An endophytic fungus and resistance to sod webworms: association inLolium perenne L;Bio. Technol. 1 189–191
Gallagher R T, Hawkes A D, Steyn P S and Vleggaar R 1984 Tremorgenic neurotoxins from perennial ryegrass causing ryegrass staggers disorder of livestock: structure elucidation of lolitrem B;J. Chem. Soc., Chem. Commun. No. 9 614–616
Harvey I C 1983 TheLolium endophyte: return from anonymity;Ann. Proc. N. Z. Grasslands Assoc. 44 234–236
Harvey I C, Fletcher L R and Emms L M 1982 Effects of several fungicides on theLolium endophyte in ryegrass plants, seeds, and in culture;N. Z. J. Argic. Res. 25 601–606
Latch G C M 1983 Incidence of endophytes in seed lines and their control with fungicides;Proc. N. Z. Grasslands Assoc. 44 251–253
Latch G C M and Christensen M J 1982 Ryegrass endophyte, incidence and control;N. Z. J. Agric. Res. 25 443–448
Latch G C M, Christensen M J and Samuels G J 1984 Five endophytes ofLolium andFestuca in New Zealand;Mycotaxon 20 535–550
Lloyd A B 1959 The endophytic fungus of perennial ryegrass;N. Z. J. Agric. Res. 2 1187–1194
McLennan E 1920 The endophytic fungus ofLolium. Part I;Proc. R. Soc. Victoria 32 252–301
Morgan-Jones G and Gams W 1982 Notes on Hyphomycetes, XLI. An endophyte ofFestuca arundinacea and the anamorph ofEpichloe typhina, new taxa in one of two new sections ofAcremonium;Mycotaxon 15 311–318
Mortimer P H and di Menna M 1983 Ryegrass staggers: further substantiation of aLolium endophyte aetiology and the discovery of weevil resistance of ryegrass pastures infected withLolium endophyte;Proc. N. Z. Grasslands Assoc. 44 240–243
Neill J C 1940 The endophyte of ryegrass (Lolium perenne);N. Z. J. Sci. and Technol. A 21 280–291
Neill J C 1941 The endophytes ofLolium andFestuca;N. Z. J. Sci. and Technol. A 23 185–193
Peters E J and Mohammezan A H B 1981 Allelophatic effects of tall fescue (Festuca arundinacea) genotypes;Agron. J. 73 56–58
Porter J K, Bacon C W, Robbins J D and Higman H C 1975 A field indicator in plants associated with ergottype toxicities in cattle;J. Agric. Food Chem. 23 771–775
Prestidge R A, Pottinger R P and Barker G M 1982 An association ofLolium endophyte with ryegrass resistance to Argentine stem weevil;Proc. N. Z. Weed Pest Control. Conf. 35 199–222
Salehussaman M and Wilkins P W 1983 Inhibitory activity inLolium perenne associated with resistance to infection by ryegrass mosaic virus;Physiol. Plant Pathol. 22 199–207
Sampson K 1935 The presence and absence of an endophytic fungus inLolium temulentum andL. perenne;Trans. Br. Mycol. Soc. 19 337–343
Sampson K 1937 Further observations on the systemic infection ofLolium;Trans. Br. Mycol. Soc. 21 84–97
Schmidt S P, Hoveland C S, Clark E M, Davis N D, Smith L A, Grimes H W and Helliman J L 1982 Association of an endophytic fungus with fescue toxicity in steers fed Kentucky 31 tall fescue seed or hay;J. Anim. Sci. 5 1259–1263
Siegel M R, Varney D R, Johnson M C, Nesmith W C, Buckner R C, Bush L P, Burns P B and Hardison J R 1984 A fungal endophyte of tall fescue: evaluation of control methods;Phytopathology 74 937–941
White J F Jr and Cole G T 1985a Endophyte-host associations in forage grasses. I. Distribution of fungal endophytes inLolium andFestuca;Mycologia 77 323–327
White J F Jr and Cole G T 1985b Endophyte-host associations in forage grasses. III.In vitro inhibition of fungi byAcremonium coenophialum; Mycologia 77 (in press)
White J F Jr and Cole G T 1986 Endophyte-host associations. IV. The endophyte ofFestuca versuta; Mycologia (in press)
Williams M J, Backman P A, Clark E M and White J F 1984 Seed treatment for control of the tall fescue endophyteAcremonium coenophialum;Plant Dis. 68 49–52
Yates S G 1962 Toxicity of tall fescue forage: a review;Econ. Bot. 16 295–303
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Cole, G.T., White, J.F. Fungal endophytes of forage grasses. Proc. Indian Acad. Sci. 94, 129–135 (1985). https://doi.org/10.1007/BF03053132
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DOI: https://doi.org/10.1007/BF03053132