Antifungal Activity of Eucalyptus Oil against Rice Blast Fungi and the Possible Mechanism of Gene Expression Pattern.

Eucalyptus oil possesses a wide spectrum of biological activity, including anti-microbial, fungicidal, herbicidal, acaricidal and nematicidal properties. We studied anti-fungal activities of the leaf oil extracted from Eucalyptus. grandis × E.

Halomonas socia sp. nov., isolated from high salt culture of Dunaliella salina.

A moderately halophilic bacteria designed strain NY-011(T) was isolated from the high salt culture of Dunaliella salina in Chengdu of Sichuan Province, China. The isolate was Gram-negative, nonmotile, rod-shaped and 12.5-21.

Cloning and characterization of a phosphate transporter gene in Dunaliella salina.

The full-length cDNA of a Na(+) -dependent Pi transport gene (DsSPT1) in Dunaliella salina was cloned by 3' and 5' Rapid Amplification of cDNA Ends (RACE), with an open reading frame (ORF) encoding 716 predicted amino acids, which exhibited 60.5% identity to that of Na(+) -dependent Pi transport 1 (DvSPT1) from Dunaliella viridis. Hydrophobicity and secondary structure prediction revealed 11 conserved transmembrane domains similar to those found in DvSPT1 from D.

Cloning and expression study of a putative carotene biosynthesis related (cbr) gene from the halotolerant green alga Dunaliella salina.

Dunaliella salina, a unicelluar green alga that can tolerate an extreme variation of salt concentration is being studied as a model system to analyze the tolerance of abiotic stresses at the molecular level. Upon abnormal NaCl levels, new transcripts were abundantly expressed in cells of the alga. EST gene discovery efforts utilizing salt-shock cells had identified one cDNA designated Dscbr (GenBank accession no.

Cloning and sequence analysis of the gene encoding 19-kD subunit of Complex I from Dunaliella salina.

NADH:ubiquinone oxidoreductase (complex I ) of the mitochondrial respiratory chain catalyzes the transfer of electrons from NADH to ubiquinone coupled to proton translocation across the membrane. The cDNA sequence of Dunaliella salina mitochondrial NADH: ubiquinone oxidoreductase 19-kD subunit contains a 682-bp ORF encoding a protein with an apparent molecular mass of 19 kD. The sequence has been submitted to the GenBank database under Accession No.

Identification and expression of the gene product encoding a CPD photolyase from Dunaliella salina.

Ultraviolet light induces photoproducts, cyclobutane pyrimidine dimers (CPDs) and (6-4) photoproducts (6-4PPs), in cellular DNA, which cause cytotoxic and genotoxic effects on the cells. Cells have several DNA repair mechanisms to repair the damage and to maintain genetic information of the cells. Photoreactivation is one of the DNA repair mechanism to remove UV-induced DNA damage from cellular DNA catalyzed by photolyase under visible light.