Nanobiotechnology for efficient plum pox virus elimination from apricot plants.

Metallic nanoparticles have antimicrobial, virucidal, and anticancer activities and have been widely applied in medicine. In plants, silver nanoparticles have been used as preventive treatments in the greenhouse to reduce viral titers and symptoms. This work investigates the effect of Argovit™ AgNP formulation on apricot plants infected with Plum pox virus or with Hop stunt viroid.

Trans-grafting plum pox virus resistance from transgenic plum rootstocks to apricot scions.

Introduction: Trans-grafting could be a strategy to transfer virus resistance from a transgenic rootstock to a wild type scion. However contradictory results have been obtained in herbaceous and woody plants. This work was intended to determine if the resistance to sharka could be transferred from transgenic plum rootstocks to wild-type apricot scions grafted onto them.

The Effect of Silver Nanoparticle Addition on Micropropagation of Apricot Cultivars ( L.) in Semisolid and Liquid Media.

Silver nanoparticles (AgNPs) are novel compounds used as antimicrobial and antiviral agents. In addition, AgNPs have been used to improve the growth of different plants, as well as the in vitro multiplication of plant material. In this work the effect of AgNPs on in vitro growth of 'Canino' and 'Mirlo Rojo' cultivars, as well as the leaf ion composition, are studied.

Application of -Based Soluble Extract on Micropropagation and Regeneration of and .

In the present study, the effect of a commercial extract of the seaweed on in vitro micropropagation, shoot regeneration, and rhizoghenesis were studied in and . Results showed that the MS medium supplemented with various concentrations of the extract (5, 10, 50, and 100 mg L) significantly enhanced the number of regenerated buds from leaf discs to the conventional MS regenerating medium. Increases ranged from 3.

Hydrogen peroxide generated by over-expression of cytosolic superoxide dismutase in transgenic plums enhances bacterial canker resistance and modulates plant defence responses.

HO generated during the oxidative burst, plays important roles in plant defenses responses against pathogens. In this study we examined the role of HO on bacterial canker resistance in transgenic plums over-expressing cytosolic superoxide dismutase. Three transgenic lines (C64, C66 and F12) with elevated levels of HO accumulation showed enhanced resistance against bacterial canker disease caused by Pseudomonas syringae pv.