Search results for "Flora"
showing 10 items of 989 documents
From microbiota toward gastro-enteropancreatic neuroendocrine neoplasms: Are we on the highway to hell?
2020
AbstractGut microbiota is represented by different microorganisms that colonize the intestinal tract, mostly the large intestine, such as bacteria, fungi, archaea and viruses. The gut microbial balance has a key role in several functions. It modulates the host’s metabolism, maintains the gut barrier integrity, participates in the xenobiotics and drug metabolism, and acts as protection against gastro-intestinal pathogens through the host’s immune system modulation. The impaired gut microbiota, called dysbiosis, may be the result of an imbalance in this equilibrium and is linked with different diseases, including cancer. While most of the studies have focused on the association between microb…
Gut Microbiota, Microbial Metabolites and Human Physical Performance
2021
Trillions of microbes inhabiting the gut modulate the metabolism of the host. Cross-sectional studies have reported associations between physical performance and the gut microbiota (GM). Physical activity seems to increase GM diversity and the abundance of certain health-beneficial microbes. We reviewed the evidence from longitudinal studies on the connection between physically active lifestyle or long-term exercise interventions and the GM. We made literature searches using databases of Web of Science and PubMed Medline to collect human studies showing or not the associations between the GM and exercise. Many controversies exist in the studies. However, the longitudinal studies show that f…
Low-level environmental metal pollution is associated with altered gut microbiota of a wild rodent, the bank vole (Myodes glareolus)
2021
Mining and related industries are a major source of metal pollution. In contrast to the well-studied effects of exposure to metals on animal physiology and health, the impacts of environmental metal pollution on the gut microbiota of wild animals are virtually unknown. As the gut microbiota is a key component of host health, it is important to understand whether metal pollution can alter wild animal gut microbiota composition. Using a combination of 16S rRNA amplicon sequencing and quantification of metal levels in kidneys, we assessed whether multi-metal exposure (the sum of normalized levels of fifteen metals) was associated with changes in gut microbiota of wild bank voles (Myodes glareo…
Temperature regulating floral bud differentiation in loquat (Eriobotrya japonica Lindl.). Hormonal and genetic aspects
2017
In loquat, apex of a current shoot changes from vegetative to reproductive stage during summer, i.e. under high temperature conditions. Indeed, just before floral bud differentiation, a decline in the growth rate due to high temperature takes place. The aim of this work is to study the role of this 'summer rest period' on the apex transition from vegetative to reproductive stage. For this purpose 1) sprouting of secondary shoots was promoted at different times, removing the main shoot, before, during and after floral bud differentiation occurred and 2) groups of trees were shifted to a greenhouse under average maximum temperature not exceeding 25 ° C during different periods from June to Oc…
Erythrina viarum Tod. (Leguminosae) from the Palermo Botanical Garden
2011
The type of Erythrina viarum Tod. (Leguminosae) is designated and the relationship between this and other species of Erythrina Sect. Caffrae Codd is investigated. The correct name of E. viarum is E. caffra Thunb.
Nuova stazione di Euphorbia serrata in Sicilia
2007
A new record of Euphorbia serrata (Euphorbiaceae) from Sicily. - Euphorbia serrata L. is reported from a new locality in Sicily near Mazara del Vallo (Trapani). Data on the biological cycle and the phytocoenosis in the new Sicilian locality are also reported.
Ex situ conservation of Sicilian endemic species in the Botanical garden of Catania University
2009
IL POTENZIALE FITOALIMURGICO DI INTERESSE ORTICOLO DELLA FLORA SICULA: Osservazioni sull’autoecologia di alcune specie eduli appartenenti alle famigl…
2006
L’indirizzo dato dall’U.E. verso settori produttivi inesplorati e di qualità, mette in risalto la rilevante potenzialità che la fitoalimurgia potrebbe avere nel settore agricolo. Tale requisito è legato al ruolo che le erbe eduli potrebbero esercitare nella filiera agro-alimentare, tenuto conto della richiesta di specie erbacee native nella dietologia, nell’omeopatia, nell’erboristeria, e nella tipizzazione della ristorazione agrituristica. Poiché l’aleatorietà dell’offerta legata alla raccolta in natura è ostativa alla loro valorizzazione, si è ritenuto opportuno studiare la tassonomia e l’autoecologia di alcune specie di maggiore interesse orticolo, con la finalità di dare un contributo a…
La dinamica evolutiva del comparto floristico del territorio di Palma di Montechiaro (AG) dalla prima metà dell’ottocento ad oggi
2006
Lo scopo di questo lavoro è quello di presentare le dinamiche evolutive del comparto floristico del territorio di Palma di Montechiaro. Sono state analizzate tre diverse epoche, dalla prima metà dell’800 a oggi. Lo studio è partito dall’analisi dei dati presenti in un vecchio manoscritto risalente alla prima metà dell’ottocento. Le notizie ottenute dal corposo elenco di specie vegetali, riportato in questo manoscritto, sono state utilizzate per effettuare una analisi comparativa con i risultati delle ricerche condotte sullo stesso territorio nel 1966 dal Prof. M. Sortino e con i i rilievi effettuati nel biennio 2004-2005. L’attenzione è stata posta sulle variazioni della qualità e consisten…
Age-Related Changes in the Gut Microbiota Modify Brain Lipid Composition
2020
PMCID: PMC6970973; International audience; Understanding the molecular mechanisms underlying the changes observed during aging is a prerequisite to design strategies to prevent age-related diseases. Aging is associated with metabolic changes, including alteration in the brain lipid metabolism. These alterations may contribute to the development of pathophysiological conditions. Modifications in the gut microbiota composition are also observed during aging. As communication axes exist between the gut microbiota and the brain and knowing that microbiota influences the host metabolism, we speculated on whether age-associated modifications in the gut microbiota could be involved in the lipid ch…