Carmen N. Branca

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This article presents an overview of recent experiments performed on transport properties of water in the deeply supercooled region, a temperature region of fundamental importance in the science of water. We report data of nuclear magnetic resonance, quasi-elastic neutron scattering, Fourier-transform infrared spectroscopy, and Raman spectroscopy, studying(More)
Tomato cotyledon explants, cultured in vitro in the presence of sucrose, were subjected to different hormonal treatments to establish whether the induction of different organogenic programmes could be correlated with differences in starch accumulation and protein electrophoretic pattern. The cytohistological changes in explants over the first 15 days of(More)
The γ-tubulin ring complex (γ-TuRC) is a key part of microtubule-organizing centers (MTOCs) that control microtubule polarity, organization and dynamics in eukaryotes. Understanding regulatory mechanisms of γ-TuRC function is of fundamental importance, as this complex is central to many cellular processes, including chromosome segregation, fertility, neural(More)
Benzisoxazole-3-acetic acid, a new synthetic growth regulator, was administered to protoplast cultures from Nicotiana tabacum and subsequently to the developed microcalluses, to test its activity on plant regeneration from protoplasts in different culture conditions. Such activity, compared to that of naphthalene-acetic acid, proved to be rather low in the(More)
In order to verify if epidermis integrity played a determinant role in epicotyl elongation induced by fusicoccin (FC), buffers at different pH's, and indoleacetic acid (IAA), we studied the short-term kinetics of elongation growth, the increase of fresh weight in long-term treatment, and the H+ excretion in intact, abraded, and peeled azuki bean epicotyl(More)
Microtubule-organizing centers such as the γ-tubulin ring complex (γ-TuRC) act as a template for polarized growth and regulation of microtubules that are essential for diverse cellular structures and processes in eukaryotes. New structural models of the budding yeast γ-tubulin small complex (γ-TuSC) of the γ-TuRC combined with functional studies done in(More)
A pilot scale system and a computer model have been developed to evaluate the performances of a novel straw pyrolyzer based on direct (convective) heating. A horizontal cylindrical reactor is continuously fed from the end by straw, while hot gas enters through holes distributed along the lateral surface. The model includes the unsteady, two-dimensional(More)
We tested the morphogenetic and cell elongating activity of 1,2-benzisoxazole-3-one, a compound similar to 1,2-benzisoxazole-3-acetic acid but lacking the lateral carbon chain. For comparison, we tested also the activity of indole 2,3-dione, having the same indolic ring as indole 3-acetic acid but no lateral carbon chain. The tests were made on the(More)
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