Proteome-Level Investigation of Calli Transformed with a Constitutively Active, Ca-Independent Form of the Gene.

Calcium-dependent protein kinases (CDPKs) are one of the main Ca decoders in plants. Among them, is one of the most studied CDPK genes as a positive regulator of plant responses to biotic and abiotic stress. The mutated form of , in which the autoinhibitory domain is inactivated (), provides constitutive kinase activity by mimicking a stress-induced increase in the Ca flux.

Overexpression of the A4-rolB gene from the pRiA4 of Rhizobium rhizogenes modulates hormones homeostasis and leads to an increase of flavonoid accumulation and drought tolerance in Arabidopsis thaliana transgenic plants.

Increased flavonol accumulation and enhanced drought tolerance in A4-rolB-overexpressing plants can be explained by the cooperative action of the SA and ROS signalling pathways. Clarification of function of the A4-rolB plast gene from pRiA4 of Rhizobium rhizogenes will allow a better understanding of the biological principles of the natural transformation process and its use as a tool for plant bioengineering. In the present study, we investigated whether the overexpression of A4-rolB gene could regulate two important processes, flavonoid biosynthesis and drought tolerance.

Clinical case of spotted fever group rickettsiae.

We report a Astrakhan ricketsiosis fever in woman who came from Astrakhan. On admission she had fever, intoxication syndrome, exanthema. In complex examination of blood serum by ELISA were reveled IgM and IgG to Rickettsia conorii on the 15th day of the disease.