STAUDER , Monica Nelly

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Vibrio cholerae O1 El Tor attachment to chitin and biofilm formation on polyvinylchloride surfaces via the N-acetylglucosamine-binding protein A (GbpA) and the mannose-sensitive haemagglutinin (MSHA) were investigated under different temperature and salinity conditions simulating those found in the aquatic environment. In vitro tests showed...

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Polymerase chain reaction (PCR) efficiency is the rate at which a PCR amplicon is generated. More efficient amplification of the DNA fragment (amplicon) will generate more products in fewer cycles, thus improving accuracy and sensitivity of quantitative PCR. The efficiency of Real-Time PCR to detect and quantify microbial cells was compared in...

Aims: To investigate the role of surface membrane proteins (MP) to promote attachment to chitin particles and copepods of different environmental and clinical vibrios. Method and Results: The role of surface MP to promote attachment to chitin particles and the copepod Tigriopus fulvus was investigated in several environmental and clinical...

The ecology of the oyster pathogens Vibrio splendidus and Vibrio aestuarianus in the brackish aquatic environment was extensively investigated in this study. By conducting laboratory experiments under natural setting conditions, it was shown that V. splendidus LGP32 strain generally exhibits longer persistence in both seawater and sediment than...

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Centropages typicus (Copepoda: Calanoida) è una della specie più comuni e abbondanti nel mesozooplancton neritico del Mar Ligure dove è presente con picchi di densità che indicano la successione di generazioni differenti nel corso dell'anno. La dinamica di popolazione di C. typicus sembra essere regolata, in Mediterraneo, dalle variazioni delle...

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The Vibrio cholerae N-acetyl glucosamine-binding protein A (GbpA) is a chitin-binding protein involved in V. cholerae attachment to environmental chitin surfaces and human intestinal cells. We previously investigated the distribution and genetic variations of gbpA in a large collection of V. cholerae strains and found that the gene is...

In this study, demethylfruticuline A (dfA) and fruticuline A (fA), two quinones representing the major diterpenoid components of the exudate produced by the aerial parts of Salvia corrugata, were assessed for their ability to modify surface characteristics, such as hydrophobicity, and to inhibit synthesis of biofilm in vitro by multiresistant...

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Centropages typicus (Copepoda: Calanoida) is a common and abundant species of the neritic mesozooplankton of the Ligurian Sea, where occurs with density peaks which indicate the succession of different generations during the year. The population dynamics of C. typicus in the Mediterranean Sea seem to be regulated by the fluctuations of local...

It was shown that barley coffee (BC) interferes with Streptococcus mutans adsorption to hydroxyapatite. After BC component fractionation by dialysis and gel filtration chromatography (GFC), it was found that the low molecular mass (\1,000 Da) fraction (LMM fraction) containing polyphenols, zinc and fluoride ions and, above all, a high molecular...

In previous studies we demonstrated that green and roasted coffee contains low molecular weight (LMW) compounds capable of inhibiting the ability of Streptococcus mutans, the major causative agent of human dental caries, to adhere to hydroxyapatite (HA) beads. This study addressed the ability of the whole high molecular weight coffee fraction...

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