Insight into effects of isolated Eurotium cristatum from Pingwu Fuzhuan brick tea on the fermentation process and quality characteristics of Fuzhuan brick tea.

Background: Pingwu Fuzhuan brick tea is a type of post-fermented tea manufactured from leaves of the tea plant, Camellia sinensis var. sinensis, the quality of which is influenced by numerous factors, especially microorganisms. Currently, there is little research on the effect of microorganisms on the fermentation and quality characteristics of Pingwu Fuzhuan brick tea.

Inhibitory effect of a natural phenolic compound, 3--coumaroyl-2-hydroxyquinic acid against the attachment phase of biofilm formation of through targeting sortase A.

The antibiofilm activity and molecular mechanism of a natural phenolic compound, 3--coumaroyl-2-hydroxyquinic acid (CHQA) against were investigated in this study. Crystal violet staining and XTT reduction assay demonstrated that CHQA could prominently prevent the biofilm formation of accompanied with decrease in metabolic activity of biofilm cells. Meanwhile, microscopic observations revealed that CHQA caused a huge collapse on the architecture of biofilm.

Insight into the effect of quinic acid on biofilm formed by .

The biofilm formation of on food contact surfaces is the main risk of food contamination. In the present study, we firstly investigated the inhibitory effect of quinic acid (QA) on biofilm formed by . Crystal violet staining assay and microscopy analysis clearly showed that QA at sub-MIC concentrations was able to significantly reduce the biofilm biomass and cause a collapse on biofilm architecture.

Inhibitory Effect of 2R,3R-Dihydromyricetin on Biofilm Formation by Staphylococcus aureus.

The adherence and biofilm formation of Staphylococcus aureus on food contact surfaces are a major concern for the food industry. Development of antibiofilm agents from polyphenols has drawn much attention due to their potent activity. The present study explored the antibacterial and antibiofilm activities of 2R,3R-dihydromyricetin (DMY) against S.

Antibacterial Effect of 2R,3R-dihydromyricetin on the Cellular Functions of Staphylococcus aureus.

The C-3-OH, C-4 carbonyl oxygen and hydrogenation of C2=C3 bond on the C-ring of 2R,3R-dihydromyricetin (DMY) proved to be not necessary for the antibacterial activity against Staphylococcus aureus. DMY significantly decreased the intracellular ATP of S. aureus cells but had few effects on pH, proline oxidation, succinate dehydrogenase activity or malate dehydrogenase activity.

AtTMEM18 plays important roles in pollen tube and vegetative growth in Arabidopsis.

In flowering plants, pollen tube growth is essential for delivery of male gametes into the female gametophyte or embryo sac for double fertilization. Although many genes have been identified as being involved in the process, the molecular mechanisms of pollen tube growth remains poorly understood. In this study, we identified that the Arabidopsis Transmembrane Protein 18 (AtTMEM18) gene played important roles in pollen tube growth.

Two new species of the genus Euxiphidiopsis Gorochov, 1993 (Orthoptera: Meconematinae) from China.

The article reported two new species of the genus Euxiphidiopsis Gorochov, 1993, i.e. Euxiphidiopsis erromena Shi & Mao sp.

Notes on a collection of Meconematinae (Orthoptera: Tettigoniidae) from Damingshan, Guangxi, China with the description of a new species.

This paper deals with 6 genera and 10 species of the tribe Meconematini from Damingshan, Guangxi, China, one of which is a new species, i.e. Xizicus (Eoxizicus) laminatus Shi sp.