Imidazole fungicides and paclobutrazol enhance cytokinin-induced adventitious shoot proliferation in araceae

• Published in: Journal of plant growth regulation Vol. 15; no. 2
• Main Authors: Werbrouck, S.P.O. (University of Gent, Gent, Belgium.), Debergh, P.C
• Format: Journal Article
• Language: English
• Published: 1996
• Subjects: 6-BENZILADENINA; 6-BENZYLADENINE; ANALISIS CUANTITATIVO; ANALYSE QUANTITATIVE; ANATOMIA DE LA PLANTA; ANATOMIE VEGETALE; CITOQUININAS; CRECIMIENTO; CROISSANCE; CYTOKININE; ESTRUCTURA QUIMICA; ETAPAS DE DESARROLLO; EXPLANT; EXPLANTES; FONGICIDE; FUNGICIDAS; IMAZALIL; MEDIO DE CULTIVO; MERISTEMAS; MERISTEME; MICROPROPAGACION; MICROPROPAGATION; MILIEU DE CULTURE; PACLOBUTRAZOL; PROCHLORAZ; PROCLORAZ; RACINE; RAICES; SPATHIPHYLLUM; STADE DE DEVELOPPEMENT; STRUCTURE CHIMIQUE; TALLO; THIDIAZURON; TIDIAZURON; TIGE; ZEATINA; ZEATINE
• ISSN: 0721-7595; 1435-8107
• DOI: 10.1007/BF00192936

The imidazole fungicides imazalil, prochloraz, and triflumizole and the triazole growth retardant paclobutrazol strongly enhanced the shoot-inducing effect of 6-benzyladenine in Spathiphyllum floribundum 'Petite' Schott. Numerous small shoots and shoot meristems appeared at the basal part of the plant. This effect was confirmed when such widely different cytokinins as zeatin, meta-topolin, and thidiazuron were combined with imazalil. Neither these fungicides nor paclobutrazol showed cytokinin effects on cytokinin-free medium. The number of roots per explant could be augmented using particular concentrations, depending on the fungicide used. The combination prochloraz and 6-benzyladenine had a similar effect on Anthurium andreanum, which suggests that Araceae are especially sensitive to this interaction