alstroemeria (alstroemeriaceae family) is an ornamental monocot mainly produced for its cut flowers. embryogenic calluses have been employed for gene transformation in alstroemeria. this research work was undertaken to study the embryogenic callus induction in alstroemeria cv. fuego. the vegetative explants (node, internode, leaf) along with various concentrations of auxins (picloram, naa, iaa,...

The E2F family of transcription factors consists of nine members with both distinct and overlapping functions. These factors are situated downstream of growth factor signaling cascades, where they play a central role in cell growth and proliferation through their ability to regulate genes involved in cell cycle progression. For this reason, it is likely that the members of the E2F family play a...

A single regular analytic arc in the plane has no conformai differential invariants. The conformai theory of curvilinear angles was initiated by Kasner, and has been elaborated by him and others. The present paper is concerned with conformai differential invariants of a real one-parameter family of regular analytic arcs in the plane. We assume that the family is defined in some region R of the ...

Recent evidence has indicated that natural genetic transformation occurs in Vibrio cholerae, and that it requires both induction by chitin oligosaccharides, like chitohexaose, and expression of a putative regulatory gene designated tfoX. Using sequence and phylogenetic analyses we have found two tfoX paralogues in all sequenced genomes of the genus Vibrio. Like V. cholerae, when grown in chitoh...

At least six members of the Wnt gene family are expressed in the murine mammary gland during growth and differentiation, whereas several other Wnt family members participate in malignant transformation of this tissue. We have used the C57mg mammary cell line, which naturally expresses the Wnt-4 and Wnt-5a genes, to examine Wnt gene expression during proliferation. The data show that the growth ...

The biased transformation is introduced for continuous random variables. It is proved in the paper that the biased transformation works for the generalized Pareto, the generalized extreme value and the normal distribution. The biased transformation works for continuous distributions of the exponential family as an approximation; this is demonstrated with the aid of simulations. The new transfor...