Effect of Sclerotinia sclerotiorum Lib. de Bary culture filtrate on sunflower morphological characters, oxalic acid content and shikimate dehydrogenase activity
1998
Tahmasebi-Enferadi, S. | Gomez-Sanchez, D. | Baldini, M. | Vannozzi, G.P. (Universita degli Studi di Udine, Udine (Italy). Dipartimento di Produzione Vegetale e Technologie Agrarie)
Seedlings of four different experimental hybrids H1, H12, H37, H44, at the age of 28 days after sowing, were subjected to two different concentrations of culture filtrate (oxalic acid) from Sclerotinia sclerotiorum Lib. De Bary, while control plants were grown in the absence of toxins. There were studied the following: 1) the utilization of fungus filtrate of Sclerotinia sclerotioum in the evaluation of sunflower variability for resistance; 2) the relation between morphological symptoms, oxalic acid content and increase in SKDH (shikimate dehydrogenase) in plants; 3) the isozyme SKDH (shikimate dehydrogenase) with determination of its proteic structure and molecular weight.
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