Andrea Andreucci

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Mutations in the DNA glycosylase/lyase ROS1 cause transcriptional silencing of the linked RD29A-LUC and 35S-NPTII transgenes in Arabidopsis. We report here that mutations in the Arabidopsis RPA2 locus release the silencing of 35S-NPTII but not RD29A-LUC in the ros1 mutant background. The rpa2 mutation also leads to enhanced expression of some transposons.(More)
Populus x canadensis clone I-214 exhibits a general indicator phenotype in response to excess Zn, and a higher metal uptake in roots than in shoots with a reduced translocation to aerial parts under hydroponic conditions. This physiological adaptation seems mainly regulated by roots, although the molecular mechanisms that underlie these processes are still(More)
This paper proposes a mathematical model of a motorcycle that deals with the lateral and longitudinal dynamics, the tyre slip and the rear wheel traction. The vehicle is considered as an assembly of two rigid bodies. The proposed dynamic formulation is based on Lagrange's equations, it allows to formulate the equations of motion with 7 degrees of freedom(More)
Poplar is one of the suitable candidates for phytoremediation due to extensive root system, fast growth rate, easy propagation and high biomass production. Zinc (Zn) is an essential element, but at high concentration becomes toxic to plants, similarly like cadmium (Cd). In order to evaluate the effect of Zn on root tissue development we conducted(More)
Transgenic Populus alba over-expressing a TIP aquaporin ( aqua1) showed a higher growth rate under Zn excess, suggesting that aqua1 could be involved in water homeostasis, rather than in Zn homeostasis. Populus is the internationally accepted model for physiological and developmental studies of tree traits under stress. In plants, aquaporins facilitate and(More)
BACKGROUND The Zolfino bean is a variety of Phaseolus vulgaris, which is cultivated in a limited area of Tuscany, Italy, and is widely appreciated for its flavor and culinary uses. OBJECTIVES A yellow Zolfino landrace cultivated in the Leccio-Reggello area was characterized and compared with three other varieties of Phaseolus vulgaris (i.e. the Borlotto,(More)
The aim of this study was to investigate Cd uptake of Populus alba Villafranca clone applying 0, 0.5 and 1 mg kg−1 soil DW of Cd (Cd c , Cd l and Cd h respectively) for 6 weeks. Cd allocation in the leaves, as a function of their position along the stem, was studied before its toxicity may alter physiological, biochemical and molecular biology of plants.(More)
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