Altered levels of indoleacetic acid and cytokinin in geranium stems infected with Corynebacterium fascians.

Balázs, Ervin and Sziráki, István (1974) Altered levels of indoleacetic acid and cytokinin in geranium stems infected with Corynebacterium fascians. ACTA PHYTOPATHOLOGICA ACADEMIAE SCIENTIARUM HUNGARICAE, 9 (3-4). pp. 287-292. ISSN 0001-6780

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Abstract

Tumor tissues of leafy galls of geranium (Pelargonium zonale cv. Irene) infected with Corynebacterium fascians contain decreased amount of indole-3-acetic acid (IAA) and exhibit increased cytokinin activity in the tissue culture bioassay compared with healthy stem tissues. Three active compounds, chromatographycally similar to zeatin, zeatinriboside and N(4²-isopentenyl)-adenine are present both in healthy and infected stems. Tumor tissues of leafy galls contain an additional cytokinin which is not present in traceable quantities in the extracts from healthy stems. The total cytokinin activity in extracts from leafy gall tissues was much greater than that in extracts prepared from healthy stem tissues.

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