Andrea Allavena

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A method for genetic transformation of lisianthus by co-cultivation ofin vitro grown leaves withAgrobacterium tumefaciens is described. Two strains, A281 and EHA105, both carrying the plasmid pKIWI105 capable of expressing the GUS gene were used in preliminary tests. A281 had higher transformation efficiency in terms of transient and stable expression. The(More)
Direct somatic embryogenesis as well as somatic embryogenesis and organogenesis mediated by small glossy calluses were obtained from immature cotyledon explants of bean (P. coccineus) cv Streamline 770 on a modified half-strength MS medium (Murashige & Skoog 1962) containing various concentrations of (2-isopentenyl)adenine and 2-naphthoxyacetic acid.(More)
A method for plant regeneration, via organogenesis and somatic embryogenesis, from P. coccineus is described. Immature cotyledons from plants regenerated and cloned in previous experiments were used. The highest percentage of regeneration (37.5%) was observed from the cotyledons of clone C7 on a modified Murashige & Skoog basal medium to which(More)
KxhKN5 (class 1 KNOX gene) was cloned from Kalanchoe × houghtonii with strong tendency to form epiphylls on leaves. KxhKN5 appear to be homologue of BP of A. thaliana on the basis of phylogeny, expression and phenotype analysis. Beside the modification of several plant and leaf traits, the appearance of epiphylls was drastically reduced by both the(More)
The constitutive expression of the rice Osmyb4 gene in Arabidopsis plants gives rise to enhanced abiotic and biotic stress tolerance, probably by activating several stress-inducible pathways. However, the effect of Osmyb4 on stress tolerance likely depends on the genetic background of the transformed species. In this study, we explored the potential of(More)
Many potted plants like Kalanchoë have an elongated natural growth habit, which has to be controlled through the application of growth regulators. These chemicals will be banned in the near future in all the EU countries. Besides their structural functions, the importance of homeotic genes to modify plant architecture appears evident. In this work, the full(More)
Transgenic plants of Osteospermum ecklonis were produced by cocultivation of leaf fragments with Agrobacterium tumefaciens harboring rol genes from A. rhizogenes. The phenotypic alterations caused by the different transgenes were evaluated in field trials. The genetic manipulation produced transgenic plants characterized by the following features: 1)(More)
Department of Biodiversity and Molecular Ecology, Research and Innovation Centre, Fondazione Edmund Mach, S. Michele all’Adige, TN, Italy Dipartimento di Biotecnologie, Universit a degli Studi di Verona, Verona, Italy Dipartimento di Scienze della Terra, dell’Ambiente e della Vita, Universit a degli Studi di Genova, Genova, Italy Unit a di Ricerca per la(More)
Foreign DNA was introduced into cell suspension cultures and leaf tissue of Eustoma grandiflorum Griseb. (lisianthus) by microprojectile bombardment. For this purpose a low-cost bombardment device that uses a helium flux to accelerate microprojectiles was built. When cell suspensions were used, an average of 4.1 Kan resistant calli were recovered per shot(More)
In order to understand plant/pathogen interaction, the transcriptome of uninfected (1S) and infected (2I) plant was sequenced at 3'end by the GS FLX 454 platform. De novo assembly of high-quality reads generated 27,231 contigs leaving 37,191 singletons in the 1S and 38,393 in the 2I libraries. ESTcalc tool suggested that 71% of the transcriptome had been(More)