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Article Addendum

Specificity in the interaction between an epibiotic clavicipitalean fungus and its convolvulaceous host in a fungus/plant symbiotum

Ulrike Steiner, Sabine Hellwig and Eckhard Leistner

volume 3 | issue 9

september 2008
Pages: 704 - 706

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Ipomoea asarifolia and Turbina corymbosa (Convolvulaceae) are associated with epibiotic clavicipitalean fungi responsible for the presence of ergoline alkaloids in these plants. Experimentally generated plants devoid of these fungi were inoculated with different epibiotic and endophytic fungi resulting in a necrotic or commensal situation. A symbiotum of host plant and its respective fungus was best established by integration of the fungus into the morphological differentiation of the host plant. This led us to suppose that secretory glands on the leaf surface of the host plant may play an essential role in ergoline alkaloid biosynthesis which takes place in the epibiotic fungus.

Addendum to: Markert A, Steffan N, Ploss K, Hellwig S, Steiner U, Drewke C, Li S, 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; 147:296-305.

and

Steiner U, Ahimsa-Müller MA, Markert A, Kucht S, Groß J, Kauf N, Kuzma M, Zych M, Lamsöft M, Furmanowa M, Knoop V, Drewke C, Leistner E. Molecular characterisation of a seed transmitted clavicipitaceous fungus occurring on dicotyledonous plants (Convolvulaceae). Planta 2006; 224:533-44.

Authors

Ulrike Steiner

Universität Bonn; Bonn, Germany

Sabine Hellwig

Institut für Pharmazeutische Biologie; Universität Bonn; Bonn, Germany

Eckhard Leistner