The KN naphthenic base and KP paraffin base series rubber processing oils with environmental protection are developed by PetroChina Lubricating Oil Company,which have characteristics of low pour point,high naphthene and saturated hydrocarbon.

When the lubricating base oil produced from the paraffin-base petroleum by hydrofining process was blended with the adequate additive, it can be made the transformer oil which accordes with state standard and possesses national advanced level, and the source of material of transformer oil is increased.

The waxy gene is the key gene of the amylase synthesis.

We have previously reported that a 31 bp DNA fragment within the 5 upstream region of rice waxy gene could interact specifically with nuclear proteins extracted from immature rice seeds.

4 kb (-2118～+1291 bp) sequence located upstream of translationalstart site of rice waxy gene is sufficientto drive the expression of the GUS reporter gene in rice immature embryos.

Study on effect of detection of Wx gene in non-glutinous rice of Oryza sativa L. Indica by STS molecular marker;

After analyzing glutinous rice waxy gene sequence reported by previous studies, two pairs of dominant and codominant STS molecular markers based PCR were designed for distinguishing glutinous rice, according to the distinctions between glutinous rice wx gene and nonglutinous rice Wx gene.

Two chimeric plasmids with Wx gene promoter(from O.