Search results for "SAC"

Ecology of yeasts associated with kernels of several durum wheat genotypes and their role in co-culture with Saccharomyces cerevisiae during dough le…

2021

International audience; This work was performed to investigate on the yeast ecology of durum wheat to evaluate the interaction between kernel yeasts and the commercial baker's yeast Saccharomyces cerevisiae during dough leavening. Yeast populations were studied in 39 genotypes of durum wheat cultivated in Sicily. The highest level of kernel yeasts was 2.9 Log CFU/g. A total of 413 isolates was collected and subjected to phenotypic and genotypic characterization. Twenty-three yeast species belonging to 11 genera have been identified. Filobasidium oeirense, Sporobolomyces roseus and Aureobasidium pullulans were the species most commonly found in durum wheat kernels. Doughs were co-inoculated …

Comprehensive analysis of forty yeast microarray datasets reveals a novel subset of genes (APha-RiB) consistently negatively associated with ribosome…

2014

Background The scale and complexity of genomic data lend themselves to analysis using sophisticated mathematical techniques to yield information that can generate new hypotheses and so guide further experimental investigations. An ensemble clustering method has the ability to perform consensus clustering over the same set of genes from different microarray datasets by combining results from different clustering methods into a single consensus result. Results In this paper we have performed comprehensive analysis of forty yeast microarray datasets. One recently described Bi-CoPaM method can analyse expressions of the same set of genes from various microarray datasets while using different cl…

Distributed pedagogical leadership in support of student transitions

2012

This article examines how, through uncovering collaborative leadership, the whole school staff is able to understand its common endeavours to support heterogeneous students’ fluent learning paths. For this, a notion of distributed pedagogical leadership (DPL) is drawn upon. DPL concerns everyone in the school community, not only leaders and management. It means abandoning role, instrumental or process centricity and moving towards leadership that is characterized as the innermost qualities of a professional learning community. This kind of leadership is best described with 10 ‘keys’ as 10 key attributes. To understand DPL in practice, quantitative data both from a nationwide Finnish survey…

Different adhesins for type IV collagen on Candida albicans: identification of a lectin-like adhesin recognizing the 7S(IV) domain

2001

Adherence of the opportunistic pathogen Candida albicans to basement membrane (BM) proteins is considered a crucial step in the development of candidiasis. In this study the interactions of C. albicans yeast cells with the three main domains of type IV collagen, a major BM glycoprotein, were analysed. C. albicans adhered to the three immobilized domains by different mechanisms. Adhesion to the N-terminal cross-linking domain (7S) required the presence of divalent cations, whereas interaction with the central collagenous domain (CC) was cation-independent. Recognition of the C-terminal non-collagenous domain (NC1) was partially cation-dependent. Binding inhibition assays with the correspondi…

Characterization of a Novel Type of Serine/Threonine Kinase That Specifically Phosphorylates the Human Goodpasture Antigen

1999

Goodpasture disease is an autoimmune disorder that occurs naturally only in humans. Also exclusive to humans is the phosphorylation process that targets the unique N-terminal region of the Goodpasture antigen. Here we report the molecular cloning of GPBP (Goodpasture antigen-binding protein), a previously unknown 624-residue polypeptide. Although the predicted sequence does not meet the conventional structural requirements for a protein kinase, its recombinant counterpart specifically binds to and phosphorylates the exclusive N-terminal region of the human Goodpasture antigen in vitro. This novel kinase is widely expressed in human tissues but shows preferential expression in the histologic…

La colonizzazione del Sud-est ucraino: una questione etnica ucraino-russa nella lettura di Dmytro Bahalij

2022

The Ukrainian-Russian ethnic question in Southeastern Ukraine has gained critical importance during the war unleashed by Moscow against Ukraine in February 2022; in this paper I analyze the question of the Ukrainian-Cossack and Muscovy colonization of this very region. I focus on the work by the Ukrainian scholar Dmytro Bahalij (1857-1932), a former member of the Russian Imperial Academy of Sciences. Bahalij emphasizes the key difference between the Ukrainian-Cossack popular colonization of the steppe region and the Moscow administration of these territories. The paper examines some of the main writings by Bahalij and reviews critical articles about his works.

Increasing the levels of 2-phenylethyl acetate in wine through the use of a mixed culture of Hanseniaspora osmophila and Saccharomyces cerevisiae

2009

The impact of mixed cultures of Hanseniaspora osmophila and Saccharomyces cerevisiae with different initial yeast ratios on wine composition has been examined. The mixed culture significantly affected sugar consumption, the main enological parameters and ester concentrations, with the exception of glycerol, isoamyl acetate and diethyl succinate levels. Remarkably, in wines obtained with mixed cultures the concentration of 2-phenylethyl acetate was approximately 3- to 9-fold greater than that produced by S. cerevisiae pure culture. Moreover sensory evaluation revealed a stronger fruity character in wines fermented with mixed cultures than in control wines. Independently of the mixed culture …

Los conectores pragmáticos en español coloquial (I) : su papel argumentativo

1993

Entre los elementos que favorecen la cohesión y la coherencia de la conversación coloquial desta can los llamados conectares pragmáticos, unidades que, además de encadenar las unidades del hebla, aseguran la transición de determinadas secuencias del texto hablado, colaborando en el mantenimiento del hilo del discurso y la tensión comunicativa. El conector pragmático se presenta como articulador frástico y transfrástico al mismo tiempo. Y en este sentido su papel se vincula predominantemente a la organización de la actividad discursiva como marcador metadiscursivo o la actividad argumentativa como conector argumentativo. En concreto, en su función argumentativa, tiene la propiedad funcional …

La Europa negra y la Constitución

2005

A multi-phase multi-objective genome-scale model shows diverse redox balance strategies in yeasts

2021

Yeasts constitute over 1500 species with great potential for biotechnology. Still, the yeastSaccharomyces cerevisiaedominates industrial applications and many alternative physiological capabilities of lesser-known yeasts are not being fully exploited. While comparative genomics receives substantial attention, little is known about yeasts’ metabolic specificity in batch cultures. Here we propose a multi-phase multi-objective dynamic genome-scale model of yeast batch cultures that describes the uptake of carbon and nitrogen sources and the production of primary and secondary metabolites. The model integrates a specific metabolic reconstruction, based on the consensus Yeast8, and a kinetic mod…