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TO T IPO T EN CY AND M O R PH O G EN E SIS O F PLANT C E L L S IN V IT R O
ADYNAMICMODELTOSTUDYMORPHOGENETICPOTENTIALOF
PLANTORGANISMS
A.O.Marchenko, S.N.Doroshenko*
Institutefor Vine and Wine "Magarach"31, KirovSt, Yalta, 334200, Ukraine,
E-Mail: .иa;
*YaltaHydrological andEngineer-GeologicalDetachment, 29MoskovskaiaSt., Yalta,
334200, Ukraine
Description o f a plant organism is of principal importance for the
detection and control of morphogenetic potential. An approach treating a
property and a trait of an organism as a result of its response to certain
environmental factors allows dynamic models to be built based on a modified
clock diagram.
Each trait is described by means of a radius-vector R(r,ф), length (r)
and angle (ф) determining the degree of trait expression and the pattern of
trait (geno) interaction, respectively. The diagram describes genotype, its
morphogenetic potential in particularly, and can be set in the space of
environmental factors affecting genotype, i.e. in the space of genome states
which may be the space o f growth regulators. In this case, angle (Ф)
determines both the pattern of trait (gene) interaction and the dependence of
a trait on environmental factors provided that the projection of vector R on
direction X of a factor considered determines the degree of trait expression
as affected by this factor.
The model suggested is described by a system o f equations provided
that the area of a figure established by interconnecting the terminations of
vectors R and/or the summation of the projections of vectors R on the
specified direction X will be preserved. In the zero-order approximation, the
model describes genotype; in higher approximations (when genotype's
interaction with environmental factors is taken into account), phenotype is
described. In the first case, new plant cultivars and technologies to produce
them can be modeled with an aid o f computers; in the second case,
regularities of expression of an organism's morphogenetic potential can be
investiga ted and the norm of genotype’s response to changeable
environmental conditions can be determined.
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