Le Piante e la Musica. Riassunto

Abstract

The Plants and the Music. — The valuable contribute that the Biology may offer to the scientific study of the « essence » of the Music is pointed out. The plants as Animals and as remotest ancestors of the humanity, contribute to form what the A. calls the « Promusic », that is the natural and necessary starting-point of the evolution of the Music, which is exclusive work of the man. The Plants particularly, although indirectly, showing wonderful instances of transformations and associations of simple in complex forms, as well of colours and scents, have certainly inspired to the Man the Harmony, which is just in Music the Art, unknown to the Ancients, in associating aesthetically sounds and timbres.     

Studio Anatomico-Ecologico del Legno Secondario di Alcune Piante del Fezzan

Riassunto

L'A. studia il tessuto legnoso secondario di 18 specie desertiche Fezzanesi, dando di ciascun legno una descrizione micrografica completa. I caratteri anatomici ed ecologici dei legni studiati suggeriscono la sistemazione delle specie a cui essi appartengono in quattro categorie ecologiche diverse.

L'A. discute poi le caratteristiche ecologiche-anatomiche delle specie appartenenti a ciascuna categoria ed il loro diverso grado di adattamento alla vita in ambiente desertico (1).     

Su La Temperatura Della Pianta Del Gelso (Notizie Preliminari)

Abstract

The purpose of this study was to determine tocopherol (Toc), fatty acid and phytosterol content in dry seeds of nine wild taxa of Sicilian Brassica sect. Brassica. Analyses were performed by gas chromatography (GC)‐mass spectroscopy (MS). The biochemical analysis of dry seeds showed that in the nine taxa examined, α‐ and γ‐Toc were the major isomers, δ‐Toc was present in traces and β‐Toc was never found. All taxa had a similar fatty acid composition with C 16:0 (357.2 mg kg^?1 DW), C 18:1 (393.94 mg kg^?1 DW) and C 22:1 (618.29 mg kg^?1 DW) acids present in higher amount. Unsaturated fatty acids (52.5–66.5%) were more abundant than saturated (33.5–47.5%) ones relative to the total fatty acids. Moreover, sitosterol was the most abundant (61.7–69.6%) of all phytosterols in all species and subspecies, followed by brassicasterol and campesterol at 16.0–19.3% and 11.9–20.7%, respectively. Total Toc content and the relative percentage of single isoforms were useful to discriminate seeds of B. incana, B. macrocarpa, B. rupestris group and B. villosa group. On the basis of these results, B. villosa subsp. villosa, B. villosa subsp. bivoniana, B. villosa subsp. drepanensis and B. villosa subsp. tinei can be ascribed to the B. villosa group. These taxa, having the highest T‐Toc, γ‐Toc and phytosterol contents, are potentially the most bioactive ones, and could, therefore, be exploited in breeding programmes to develop genotypes with putative positive effects on human health.

Abbreviations: B, Brassica; DW, dry weight; FA, fatty acids; RH, relative humidity; T‐FA, total fatty acids; T‐Phy, total phytosterols; T‐Toc, total tocopherol; Toc, tocopherol     

L'Azione Fisiologica del Nichel Sulle Piante di un Terreno Serpenitinoso

Abstract

The Author, on the basis of numerous results of pollen analysis on turfy-clayey deposits especially in Delta Padano, shows the gradual impoverishment, the main ancient species (Pinus haploxylon, Abies nordmanniana, Tsuga, Cedrus, Carya, Pterocarya, Zelkova, Castanea latifolia) suffered from during middle and upper Pleistocene.     

Le diatomee bentoniche del porto di Palermo

Abstract

Benthic diatoms in the harbour of Palermo (Sicily).—The first results of a systematic investigation on the benthic diatoms on the fouling settlements, at four selected sites in the harbour of Palermo, are reported. Samples of comparable areas have been examined either on the fouling of vertical walls of the wharfs or on asbestos panels vertically submerged at the same place for at least eighteen months. Seventy-seven species have been found. No marked taxonomic difference is evident between the populations on the stoneworks and those on the panels.     

Le alghe epilitiche di alta montagna nel gruppo del cevedale

Riassunto

Sono state prese in esame 37 stazioni delle rocce scistose del Cevedale fra i 2100 e i 3000 metri con una flora algologica di ben 176 specie. I diversi tipi di roccia posseggono biocenosi caratteristiche secondo il umidità, l'altitudine, l'esposizione e la struttura chimico-fisico.

Forme specifiche del clima alpino non si conoscono con sicurezza causa la diffusione operata dal vento e l'effetto mitigatore dell'acqua stessa alle accentuate oscillazioni termiche del clima alpino.     

Rare genotype del2,3/2184insA in a cystic fibrosis patient

In this paper we present an interesting case of cystic fibrosis patient with rare genotype de12,3/2184insA and atypical clinical image including: mild symptoms in an early phase of disease, quick progress of lung disease, complicated with pneumothorax after Bordetella pertussis infection and very good response to systemic and inhaled steroid therapy.