Matteo Maria Bojardo's, Grafen von Scandiano, Verliebter Roland : Zum erstenmale Verdeutscht und mit Anmerkungen versehen /

Volume 2 has imprint: Stuttgart, Bei Beck und Fränkel.

Il Parnasso italiano, ovvero : I quattro poeti celeberrimi italiani.

Title of volume 2: Il Parnasso italiano continuato.

Los tres libros de Mattheo Maria Boyardo conde de Scandiano, llamados Orlando Enamorado

Copia digital: Biblioteca valenciana, 2010

Orlando innamorato di Matteo Ma. Bojardo rifatto da Francesco Berni : tomo I.

Mode of access: Internet.

Orlando innamorato di Matteo Ma. Bojardo rifatto da Francesco Berni : tomo II.

Mode of access: Internet.

Orlando innamorato di Matteo Ma. Bojardo rifatto da Francesco Berni : tomo III.

Mode of access: Internet.

Orlando innamorato di Matteo Ma. Bojardo rifatto da Francesco Berni : tomo IV.

Mode of access: Internet.

Orlando innamorato di Matteo Ma. Bojardo rifatto da Francesco Berni : tomo V.

Mode of access: Internet.

Orlando innamorato di Matteo M. Bojardo,

Mode of access: Internet.

Il mondo cavalleresco in Boiardo, Ariosto, Berni.

"Bibliografia": p. [vii]-viii.

Stories from the Italian poets: being a summary in prose of the poems of Dante, Pulci, Boiardo, Ariosto and Tasso; with comments throughout, occasional passages versified, and critical notices of the lives and genius of the authors.

Paged continuously.

Orlando furioso di M. Lodovico Ariosto : tomo I.

Mode of access: Internet.

Orlando innamorato /

"Vita di Francesco Berni tratta dagli scrittori d'italia delconte Giammaria Mazzuchelli": v.1, p. v-xxxvi.

A novel phase variation mechanism in the meningococcus driven by a ligand-responsive repressor and differential spacing of distal promoter elements

Phase variable expression, mediated by high frequency reversible changes in the length of simple sequence repeats, facilitates adaptation of bacterial populations to changing environments and is frequently important in bacterial virulence. Here we elucidate a novel phase variable mechanism for NadA expression, an adhesin and invasin of Neisseria meningitidis. The NadR repressor protein binds to operators flanking the phase variable tract of the nadA promoter gene and contributes to the differential expression levels of phase variant promoters with different numbers of repeats, likely due to different spacing between operators. It is shown that IHF binds between these operators, and may permit looping of the promoter, allowing interaction of NadR at operators located distally or overlapping the promoter. The 4-hydroxyphenylacetic acid, a metabolite of aromatic amino acid catabolism that is secreted in saliva, induces nadA expression by inhibiting the DNA binding activity of the NadR repressor. When induced, only minor differences are evident between NadR-independent transcription levels of promoter phase variants, which are likely due to differential RNA polymerase contacts leading to altered promoter activity. These results suggest that NadA expression is under both stochastic and tight environmental-sensing regulatory control, and both regulations are mediated by the NadR repressor that and may be induced during colonization of the oropharynx where it plays a major role in the successful adhesion and invasion of the mucosa. Hence, simple sequence repeats in promoter regions may be a strategy used by host-adapted bacterial pathogens to randomly switch between expression states that may nonetheless still be induced by appropriate niche-specific signals.