[Study on quality standard for mori cortex].

Objective: To establish a new evaluation model and compare the differences of Mori Cortex from different habitats at different harvest time.

Methods: TLC method was used to identify sanggenon D in the sample with silica gel G plate and a mixture of chloroform-methanol-formic acid (5: 1:0. 3) as a developing solvent.

Identification and characterization of inosine 5-monophosphate dehydrogenase in Streptococcus suis type 2.

Streptococcus suis type 2 is a swine pathogen responsible for diverse diseases. Although many virulent factors have been identified and studied, relatively little is known about the pathogenic mechanisms of type 2. The aim of the study was to identify and understand the characterization of Inosine 5-monophosphate dehydrogenase (IMPDH).

[Cloning and characterization of the gene encoding IMPDH of Streptococcus suis serotype 2].

Given the lack of effective vaccines to control Streptococcus suis infection and the lack of a rapid and reliable molecular diagnostic assay to detect its infection, S. suis serotype 2 was sequenced partly in an effort to identify important virulence factors. Two new open reading frames were found located between orf2 and mrp.