Plurifinely open sets and complex Monge-Amp\`ere measures

The aim of the paper is to investigate the structure of plurifinely open sets. As an application, we will prove an equality on complex Monge-Amp\`ere measures in plurifinely open sets

CONSTRUCTIVE AND INVESTIGATE THE GENERALIZED CONVOLUTION WITH THE WEIGHT FUNCTION FOR THE FOURIER COSINE AND SINE TRANSFORMS

Joint Research on Environmental Science and Technology for the Eart

Phenotypic variation in Vibrio harveyi : virulence factors and immune response in Artemia franciscana

Phenotypic (phase) variation or phenotypic switching is defined as a process of reversible, high frequency phenotypic variation. Until now, little is known about phenotypic variation in Vibrio especially in luminous vibriosis diseases for many aquaculture species. Vibrio harveyi, a luminescent Gram-negative motile marine bacterium, is an important pathogen responsible for causing severe diseases in shrimp, finfish and molluscs leading to severe economic losses. The present study showed that switching from the luminescent (L) to the non-luminescent (NL) state changed the phenotypic physiology or behavior of V. harveyi. Subsequently, gnotobiotic Artemia model organism (GART) system was used to investigate the influence of virulent and non-virulent L and NL of the wild type V. harveyi and its quorum sensing (QS) mutant on immune defense of A. franciscana. Next, the full-length sequence of Hmgb1 of A. franciscana was isolated for the first time in this thesis. In conclusion, this study indicates that in vitro virulence factors are changed as a result of phenotypic variation in V. harveyi. These alterations in the L and NL variants of the wild type BB120 and its QS mutan

Researchers who lead the trends

Xuan-Hung Doan, Phuong-Tram T. Nguyen, Viet-Phuong La, Hong-Kong T. Nguyen (2019). Chapter 5. Researchers who lead the trends. In Quan-Hoang Vuong, Trung Tran (Eds.), The Vietnamese Social Sciences at a Fork in the Road (pp. 98–120). Warsaw, Poland: De Gruyter. DOI:10.2478/9783110686081-010 Online ISBN: 9783110686081 © 2019 Sciend

Characterization of phenotype variations of luminescent and non-luminescent variants of Vibrio harveyi wild type and quorum sensing mutants

Vibrio harveyi, a luminescent Gram-negative motile marine bacterium, is an important pathogen responsible for causing severe diseases in shrimp, finfish and molluscs leading to severe economic losses. Non-luminescent V.harveyi obtained by culturing luminescent strains under static and dark condition were reported to alter the levels of virulence factors and metalloprotease gene and luxR expression when compared to their luminescent variants. Presently, we conducted an in vitro study aiming at the characterization of virulence-related phenotypic traits of the wild-type V.harveyi BB120 strain and its isogenic quorum sensing mutants before and after switching to the non-luminescent status. We measured the production of caseinase, haemolysin and elastase and examined swimming motility and biofilm formation. Our results showed that switching from the bioluminescent to the non-luminescent state changed the phenotypic physiology or behaviour of V.harveyi resulting in alterations in caseinase and haemolytic activities, swimming motility and biofilm formation. The switching capacity was to a large extent independent from the quorum sensing status, in that quorum sensing mutants were equally capable of making the phenotypic switch