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Your search keyword '"DI IORIO, Erika"' showing total 32 results
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32 results on '"DI IORIO, Erika"'

1. The Development of Soil Science in Molise

Author

Di Iorio, Erika, Longobardi, Elettra, Sellitto, Vincenzo Michele, Palumbo, Giuseppe, Buscaroli, Alessandro, Vianello, Gilmo, Scalenghe, Riccardo, Cocchiarella, Alfredo, Malucelli, Francesco, Colombo, Claudio, Dazzi, Carmelo, editor, Benedetti, Anna, editor, Corti, Giuseppe, editor, and Costantini, Edoardo A. C., editor

Published
2024
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12. Humic Substances: From Supramolecular Aggregation to Fractal Conformation-Is There Time for a New Paradigm?

Author

Angelico, Ruggero, Colombo, Clauido, Di Iorio, Erika, Brtnický, Martin, Fojt, Jakub, Conte, Pelegrino, Angelico, Ruggero, Colombo, Clauido, Di Iorio, Erika, Brtnický, Martin, Fojt, Jakub, and Conte, Pelegrino

Abstract

Natural organic matter, including humic substances (HS), comprises complex secondary structures with no defined covalent chemical bonds and stabilized by inter- and intra-molecular interactions, such as hydrogen bonding, Van der Waal's forces, and pi-pi interactions. The latest view describes HS aggregates as a hydrogel-like structure comprised by a hydrophobic core of aromatic residues surrounded by polar and amphiphilic molecules akin a self-assembled soft material. A different view is based on the classification of this material as either mass or surface fractals. The former is intended as made by the clustering of macromolecules generating dendritic networks, while the latter have been modelled in terms of a solvent-impenetrable core surrounded by a layer of lyophilic material. This study reviews the evolution of the increasingly refined models that appeared in the literature, all capable to describing the physicochemical properties of HS. All the models are critically examined and revisited in terms of their ability to provide key information on the structural organization of HS. Understanding how the molecular association pathway influences aggregation of HS also provides a key acknowledgment of their role in the environment.

Published
2023

31. A quick screening to assess the phytoextraction potential of cadmium and copper in Quercus pubescens plantlets.

Author

Di Santo, Patrick, Cocozza, Claudia, Tognetti, Roberto, Palumbo, Giuseppe, Di Iorio, Erika, and Paura, Bruno

Subjects
QUERCUS pubescens, PHYTOREMEDIATION, COPPER, CADMIUM, HEAVY metals & the environment
Abstract

The relevance of the environmental pollution by heavy metals warrants the necessity to develop and assess more efficient plant-based technologies. This study was conducted to evaluate a quick screening approach in order to investigate the cadmium (Cd) and copper (Cu) phytoextraction potential of Quercus pubescens in a micro-propagation system. Increasing concentrations of Cd (0, 5, 50, and 250 μM) and Cu (0, 5, 50, 250 and 500 μM) were separately applied to evaluate the effect of metals on their absorption and accumulation in downy oak plants. At high concentrations, Cd and Cu significantly reduced the dry biomass of shoots and roots and the plant tolerance index. Cd was toxic at increasing concentrations, inducing higher reduction of shoot dry mass than roots, whereas Cu increased dry mass at 5 μM. This study represents the first attempt to assess Cd and Cu uptake in Q. pubescens under in vitro conditions. The in vitro screening potential is meanly related to the following purposes: (i) proper selection of plant materials resilient to excess metals in the growth substrate; (ii) efficient removal of metals by the selected tree species; (iii) minor interference with the growth of plants accumulating metals in their tissues; (iv) rapid provision of plant materials for tree breeding programs. [ABSTRACT FROM AUTHOR]

Published
2017
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