110 research outputs found
Bonzi (le comte François de)
No full textLe comte François (Francesco) de Bonzi est le fils de Pierre (Pietro) de Bonzi, sénateur florentin, et de Lucrèce (Lucrezia) de Manelli. Il est le frère de Dominique de Bonzi, coadjuteur de leur oncle paternel, Jean de Bonzi évêque de Béziers de 1596 à 1621 ; le frère de Thomas II de Bonzi, évêque de Béziers de 1621 à 1628 ; et de Clément de Bonzi (1598-1659), évêque de Béziers de 1628 à 1659. Sénateur de Florence après son père, il devient le résident du roi de France auprès du duc de Man..
Silencing two main isoforms of crustacean hyperglycemic hormone (CHH) induces compensatory expression of two CHH-like transcripts in the red swamp crayfish Procambarus clarkii
No full textRNA interference has frequently been applied to modulate gene function in organisms. With the aim of creating new autocidal methods based on neuro-endocrine disruptors for invasive populations of Procambarus clarkii, we silenced the Crustacean Hyperglycemic Hormone (CHH) by injecting the corresponding dsRNA. CHH is a pleiotropic hormone that primarily regulates the mobilization of energy reserves and plays a pivotal role in stress responses. Here, we describe two experiments aimed at testing whether CHH silencing significantly alters important physiological aspects. The first experiment investigates the effects of CHH silencing at the glycemic and transcriptomic level in the eyestalk. The second experiment explores the long-term effects of CHH silencing and the effects on mortality and moulting rates. Osmotic deficits and mortality were recorded in specimens injected with
CHH dsRNA, whilst controls were injected with GFP dsRNA. After 20 days, despite still silenced for CHH, individuals that survived recovered a strong hyperglycemic response after serotonin injection due to the compensatory effect of two peptides belonging to the crustacean neurohormone CHH protein family
First taxonomical analyses of pike populations (Esocidae, Esox) in Friuli Venezia Giulia (Northeast Italy)
No full textRecent studies have addressed to the taxonomical characterization of Italian pike as a new species named Esox cisalpinus, which differs from the European Esox lucius. A taxonomical study of the pike features in the Friuli Venezia Giulia region (Northeast Italy) is here presented, since previous studies did not consider this area which could represent an overlapping zone for the two species. Main meristic characters were investigated, and genetic analyses were carried out using molecular marjers. Our results conform the genetic separation from the E. lucius, while among meristic characters only the number of lateral-line scales differs between the species. E. cisalpinus was observed in most of the investigated sites, except for an isolated lentic habitat where E. lucius was found. As E. cisalpinus is likely autochthonous in friuli venezia Giulia as in other Italian regions, we highlight the requirement of furtheranalyses in order to clarify if hybridization can occur and to plan appropriate management safeguards for native populations
Reproductive plasticity of a Procambarus clarkii population living 10°C below its thermal optimum
No full textIn this study the annual reproductive biology of a Procambarus clarkii (Girard, 1852) population living in an atypical habitat with cold spring waters is investigated by monitoring Gonado-Somatic and Hepato-Somatic Indexes (GSI and HSI) and by performing cytology on ovaries. Despite its known preference for habitats with water temperature from 21 to 30 °C, our results clearly confirm the adaptation of this population to the atypical thermal habitat, characterised by an annual mean water temperature value of 13.32 ±0.08 °C. Maximum gonadal development was reached in August, with maximum GSI median value of 0.64 (instead of reported values even 10 times higher for otherpopulations), and ovigerous females were found in autumn, with mean realized fecundity of 35 ±7 compared to 285–995 reported from other habitats. Histological analysis was consistent with other studies and allowed us to follow ovarian development at cytological level. The importance of all these results is not to be underestimated: to our knowledge these findings are the first report of the coolest habitat successfully colonized by this species at the present time and so they have to be taken as a warning about the possible range expansion of P.clarkii also to northern and colder habitats that have few things in common with the native habitat of the species and, up to now, were considered “safe” from the invasion of the red swamp crayfish
Reproductive plasticity of a Procambarus clarkii population living 10°C below its thermal optimum
No full textIn this study the annual reproductive biology of a Procambarus clarkii (Girard, 1852) population living in an atypical habitat with cold
spring waters is investigated by monitoring Gonado-Somatic and Hepato-Somatic Indexes (GSI and HSI) and by performing cytology on
ovaries. Despite its known preference for habitats with water temperature from 21 to 30 °C, our results clearly confirm the adaptation of this
population to the atypical thermal habitat, characterised by an annual mean water temperature value of 13.32 ±0.08 °C. Maximum gonadal
development was reached in August, with maximum GSI median value of 0.64 (instead of reported values even 10 times higher for other
populations), and ovigerous females were found in autumn, with mean realized fecundity of 35 ±7 compared to 285–995 reported from other
habitats. Histological analysis was consistent with other studies and allowed us to follow ovarian development at cytological level. The
importance of all these results is not to be underestimated: to our knowledge these findings are the first report of the coolest habitat
successfully colonized by this species at the present time and so they have to be taken as a warning about the possible range expansion of P.
clarkii also to northern and colder habitats that have few things in common with the native habitat of the species and, up to now, were
considered “safe” from the invasion of the red swamp crayfish
Can peptides be orally-delivered in crustaceans? The case study of the Crustacean Hyperglycaemic Hormone in Procambarus clarkii
No full textThe oral administration of substances in crustaceans is a growing field of research, and is considered the most ef-
fective way to convey elements in their body instead injections or other invasive techniques. It presents huge po-
tentialities, in fact the production of emulsions that preserves the substance to be conveyed until it reaches the
target organ finds application in the development of new vaccines, in the convey of substances for aquaculture
purposes and in the administration of stressors to contrast the spreading of invasive crustacean species. The
red swamp crayfish (Procambarus clarkii, Girard 1852) is one of the most spread invasive species worldwide,
but it is also considered among the most economically important freshwater crustacean species. For these rea-
sons it is considered as a paradigmatic species.
The chemical synthesis of the D-Crustacean Hyperglycemic Hormone isoform (D-Phe-CHH) from P. clarkii is here
presented, with its species-specificity, verified through the injection of D-Phe-CHH in both the red swamp cray-
fish and the threatened European species Austropotamobius italicus (Faxon, 1984). The D-Phe-CHH has been suc-
cessfully oral-delivered in P. clarkii by using a water/oil/water microemulsion entrapped in a jellified matrix. After
the administration of CHH, the glycaemia levels significantly increased in eyestalk-less animals at hour 6, and in
intact crayfish at hour 5, from the ingestion.
These encouraging findings pave the way for the use of the double emulsion method to oral administer different
peptides to both handle physiological aspects of P. clarkii life cycle for aquaculture purposes and to create species-
specific peptides-based mix to hamper the spreading of invasive crayfish populations.
Statement of relevance: Through the injection of the de novo synthetized D-Phe-Crustacean Hyperglycaemic Hor-
mone isoform in the haemolymphatic circulation of P. clarkii, we evaluated its action in triggering
hyperglycaemia.
The peptide has been then successfully orally delivered in P. clarkii by w/o/w microemulsion and its bioactivity
has been demonstrated. The formulated emulsion to convey peptides in crustaceans represents a very promising
technique to modulate growth and reproduction in aquaculture plans
"Est animum": la figura di Lucrezia Borgia nell'epistolario di Pietro Bembo
No full textAttraverso un riesame della tradizione manoscritta e a stampa delle lettere inviate da Pietro
Bembo a Lucrezia Borgia, il contributo intende mostrare come tali testi fossero stati inseriti dall’autore
in un’opera letteraria unitaria : un epistolario destinato alla pubblicazione postuma. L’esame delle mo-
difiche che Bembo effettuò sulla successione delle epistole a Lucrezia Borgia offre una nuova chiave di
lettura, evidenziando come l’immagine che l’autore intendeva trasmettere ai posteri di sé stesso e di
Lucrezia abbia subito delle trasformazioni nel corso del tempo.Through a review
of the handwritten and printed tradition of the letters sent by Pietro Bembo to Lucrezia Borgia, the
contribution aims to show how these texts had been inserted by the author in a unitary literary work : an
epistolary destined for posthumous publication. The examination of the changes that Bembo made on
the succession of the epistles to Lucrezia Borgia offers a new interpretation of these texts, highlighting
how the image of himself and of Lucrezia that the author intended to convey to posterity of himself and
of Lucrezia underwent transformations through time
Mercy for Anne and a Rose for Lucrezia
No full textAs two of Renaissance Europe\u27s most controversial women, Anne Boleyn and Lucrezia Borgia have been the targets of much conjecture in the world of historical fiction. Sarah Dunant, author of the New York Times bestseller Blood and Beauty poses the question: Why bother with the slander when the truth is more unexpected? Dunant\u27s professional research on Lucrezia draws the fine line between historical fact and popular myth. Unlike Hilary Mantel\u27s Wolf Hall-which greatly exaggerates the monster legend surrounding Anne Boleyn-Blood and Beauty succeeds in being the more compellingly accurate novel, and leading work of historical fiction
The medical context of Lucrezia Marinella
No full textLucrezia Marinella, autora de la obra La nobilità et l 'eccellenza delle donne co 'diffetti et mancamenti de gli huomini (1600), era hija del médico Giovanni Marinello, quien escribió Le medicine partenenti alle infermità delle donne (1536). La obra de Marinella recoge los primeros impresos médicos y farmacológicos italianos aplicados a la salud de las mujeres. En este trabajo se estudia la relación de esta mujer con los médicos
italianos de su época. Lucrezia Marinella, author of the book La nobilità et l 'eccellenza delle donne co 'diffetti et mancamenti de gli huomini (1600), was daughter of the doctor Giovanni Marinello, who wrote Le medicine partenenti alle infermità delle donne (1536). Marinello's work compiles the first medical and pharmacological Italian prints applied to women's health. In this paper we study the relationship of this woman with the Italian doctors of her time
Morphological traits and sex ratios of Acanthochromis polyacanthus F2 generation in present-day and elevated temperatures
No full textPlease see the associated publication on why and how this data was collected and analysed: Spinks, R.K., Donelson, J.M., Bonzi, L.C., Ravasi, T. & Munday, PL. (2022) Parents Exposed to Warming Produce Offspring Lower in Weight and Condition. Ecology and Evolution.
This data publication contains the dataset and a R script for the above publication
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