biologia plantarum

International journal on Plant Life established by Bohumil Nìmec in 1959

Biologia plantarum 39:91-97, 1997 | DOI: 10.1023/A:1000365224324

Biochemical aspects of almond microcuttings related to in vitro rooting ability

E. Caboni1, M.G. Tonelli1, P. Lauri1, P. Iacovacci1, C. Kevers2, C. Damiano1, T. Gaspar2
1 Istituto Sperimentale per la Frutticoltura, Rome, Italy
2 Institut de Botanique, Université de Liège, Liège, Belgique

Microcuttings of seven genotypes of almond (Prunus dulcis Mill) used as peach rootstocks, showed different rooting ability in vitro. No direct relationship was found between peroxidase activity and total phenol content, determined in the whole microcuttings prior to the root inducing treatment, and the rooting ability of these genotypes. However, a positive relationship was found between free indole-3-acetic acid (IAA) level and IAA-aspartate and the rooting response. After transferring into the rooting medium, peroxidase activity of the easiest-to-root genotype increase up to a peak and then declined and the total phenol content showed an opposite trend. These variations did not occur in the most difficult-to-root genotype.

Keywords: endogenous IAA; IAA-aspartate; peroxidase; phenols; Prunus dulcis; rhizogenesis

Prepublished online: January 1, 1997; Published: July 1, 1997  Show citation

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Caboni, E., Tonelli, M.G., Lauri, P., Iacovacci, P., Kevers, C., Damiano, C., & Gaspar, T. (1997). Biochemical aspects of almond microcuttings related to in vitro rooting ability. Biologia plantarum, 39(1), 91-97. doi: 10.1023/A:1000365224324
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