Abscisic Acid in Prunus Trees: Isolation and the Effect on Growth of Excised Shoot Tissue

Abstract

The abscisic acid content of the mature shoot tissue of vigorous Prunus avium, medium sized Prunus cerasus and dwarfing Prunus cerasus self (S) was estimated by spectropolarimetry and gas chromatography. There is no correlation between the levels of ABA found in the tissue and the dwarfing potential of the trees investigated. However, Prunus avium stem tissue shows the lowest sensitivity to ABA, whereas the explants of normal and dwarfing Prunus cerasus exhibit a stronger inhibition.

7. The role of plant growth regulators in forest tree cambial growth

“…Feucht et al . (54) provided gas chromatographic evidence for ABA in the cambium of three Prunus spp . In the presence of ABA, shoot segments of all three species produced cambial callus in vitro .…”