The compensation heat pulse (CHP) method is widely used to estimate sap flow and transpiration in conducting organs of woody plants. Previous studies have reported a natural azimuthal variability in sap flow, which could have practical implications in locating the CHP probes and integrating their output. Sap flow of several olive trees (Olea europaea L. cv. 'Arbequina') previously grown under d...

The thyroid hormones change the rate of basal metabolism, modulating the consumption of oxygen and causing production of reactive oxygen species, which leads to the development of oxidative stress and DNA strand breaks. Olive (Olea europaea L.) leaf contains many potentially bioactive compounds, making it one of the most potent natural antioxidants. The objective of this study was to evaluate t...

This research aimed to explore the effect of zeatin (6-γ,γ-dimethylallyl-amino) concentration on in vitro shoot proliferation six olive (Olea europaea L.) cultivars, ‘Aggizi Shami,’ ‘Coratina,’ ‘Frantoio,’ ‘Manzanillo,’ ‘Picual,’ and ‘Toffahi.’ The cultivars were reproduced via multiplication Rugini medium (OM) with three concentrations (2, 4, 6 mg L-1) for subcultures. Shami’ ‘Toffahi’ had hig...

A commercial plant extract derived from olive tree leaf (Olea europaea) (LExt) and its major compound, oleuropein (Ole), inhibited the in vitro infectivity of the viral haemorrhagic septicaemia virus (VHSV), a salmonid rhabdovirus. Incubation of virus with LExt or Ole before infection reduced the viral infectivity to 10 and 30%, respectively. Furthermore, LExt drastically decreased VHSV titers ...