Phuck's right.
Kucht S, Gross J, Hussein Y, Grothe T, Keller U, Basar S, König WA, Steiner U, Leistner E. Elimination of ergoline alkaloids following treatment of Ipomoea asarifolia (Convolvulaceae) with fungicides. Planta. 2004 Aug;219(4):619-25
Steiner U, Ahimsa-Müller MA, Markert A, Kucht S, Groß J, Kauf J, Kuzma M, Zych M, Lamshöft M, Furmanova M, Knoop V, Drewke C, Leistner E (2006) Molecular characterization of a seed transmitted clavicipitaceous fungus occurring on dicotyledoneous plants. Planta 224:533-544
Ahimsa-Müller MA, Markert A, Hellwig S, Knoop V, Steiner U, Drewke C, Leistner E. Clavicipitaceous fungi associated with ergoline alkaloid-containing convolvulaceae. J Nat Prod. 2007 Dec;70(12):1955-60
Markert A, Steffan N, Ploss K, Hellwig S, Steiner U, Drewke C, Li SM, Boland W, Leistner E. Biosynthesis and Accumulation of Ergoline Alkaloids in a Mutualistic Association between Ipomoea asarifolia (Convolvulaceae) and a Clavicipitalean Fungus. Plant Physiol. 2008 May;147(1):296-305. doi: 10.1104/pp.108.116699
Full copies available in my MG seed info archive:
http://www.bluelight.org/vb/entries/7141-morning-glory-seed-information-archive
Overview of the research:
Taber WA, Heacock RA (1962) Location of ergot alkaloid and fungi in the seed of Rivea corym- bosa (L.) Hall. , “Ololiuqui”. Canad J Microbiol 8:137-143
Taber WA, Vining LC, Heacock RA (1963a) Clavine and lysergic acid alkaloids in varieties of morning glory. Phytochemistry 2:65-70
Dobberstein RH, Staba EJ (1969) Ipomoea, Rivea and Argyreia tissue cultures: Influence of vari- ous chemical factors on indole alkaloid production and growth. Lloydia/J Nat Prod 32:141-147
Taber WA, Heacock RA, Mahon ME (1963b) Ergot-type alkaloids in vegetative tissue of Rivea corymbosa (L.) Hall. f. Phytochemistry 2:99-101
Gröger D (1963) Über das Vorkommen von Ergolinderivaten in Ipomoea-Arten. Flora
153:373-382
Mockaitis JM, Kivilaan A, Schulze A (1973) Studies of the loci of indole alkaloid biosynthesis and alkaloid translocation in Ipomoea violacea plants. Biochemie und Physiologie der Pflanzen 164:248-257
Boyes-Korkis JM, Floss HG (1992) Biosynthesis of ergot alkaloids: Some new results on an old problem. Prikl Biokhim Mikrobiol 28:843-857
Bacon CW, Porter JK, Robbins JD, Lutrell ES (1977) Epichloë typhina from toxic tall fescue grasses. Appl Environ Microbiol 34:576-581
Morgan-Jones G, Gams W (1982) Notes on Hyphomycetes. XLI. An endophyte of Festuca arundinacea and the
anamorph of Epichloë typhina, new taxa in one of two new sections of Acremonium. Mycotaxon 15:311-318
Glenn AE, Bacon CW, Price R, Hanlin RT (1996) Molecular phylogeny of Acremonium and its taxonomic implications. Mycologia 88: 369-383
Bacon CW, DeBattista J (1991) Endophytic fungi of grasses. In: Arora DK, Rai B, Mukerji KG, Knudsen GR (eds) Handbook of applied microbiology. Soils and plants, vol 1. Marcel Dekker, New York, p 231
Porter JK (1995) Analysis of endophyte toxins: fescue and other grasses toxic to livestock. J Anim Sci 73:871-880
Petroski RJ, Powell RG, Clay K (1992) Alkaloids of Stipa robusta (sleepygrass) infected with an Acremonium endophyte. Nat Tox 1:84-88
White JF Jr (1997) Systematics of the graminicolous Clavicipitaceae. In: Bacon CW, Hill SH (eds) Neotyphodium/grass interactions. Plenum Press, New York, pp 27-39
Clay K (1990) Fungal endophytes of grasses. Annu Rev Ecol Syst 21:275-297
Powell RG, Plattner RD, Yates SG, Clay K, Leuchtmann A (1990) Ergobalansinine, a new ergot- type peptide alkaloid isolated from Cenchrus echinatus (sandbur grass) infected with Balansia obtecta, and produced in liquid cultures of B. obtecta and Balansia cyperi. J Nat Prod 53:1272-1279
Jenett-Siems K, Kaloga M, Eich E (1994) Ergobalansine/ergobalansinine, a proline-free peptide- type alkaloid of the fungal genus Balansia, is a constituent of Ipomoea piurensis. J. Nat. Prod.57:1304-1306; Erratum: Correction of the species: I. asarifolia (Desr.) R. & Sch. (2004) J Nat Prod 67:2160
Tofern B, Kaloga M, Witte L, Hartmann T, Eich E (1999) Occurrence of loline alkaloids in Argyreia mollis (Convolvulaceae). Phytochemistry 51:1177-1180
Kucht S, Groß J, Hussein Y, Grothe T, Keller U, Basar S, König WA, Steiner U, Leistner E (2004) Elimination of
ergoline alkaloids following treatment of Ipomoea asarifolia (Convolvulaceae) with fungicides. Planta
219:619-625
Steiner U, Ahimsa-Müller MA, Markert A, Kucht S, Groß J, Kauf J, Kuzma M, Zych M, Lamshöft M , Furmanova M, Knoop V, Drewke C, Leistner E (2006) Molecular characterization of a seed transmitted clavicipitaceous fungus occurring on dicotyledoneous plants. Planta 224:533-544
Schardl CL (1996) Epichloë species: fungal symbionts of grasses. Annu Rev Phytopathol 34:109-130
Schardl CL, Leuchtmann A, Spiering MJ (2004) Symbioses of grasses with seedborne fungal endophytes. Annu Rev Plant Biol 55:315-340