THE CADMIUM EFFECT EVALUATION ON GERMINATION AND ROOT ELONGATION OF AXONOPUS AFFINIS AND FESTUCA RUBRA BACTERIZED SEEDS

Abstract

There has been reported different index
to biomonitoring the phytotoxic effects of
metals in plants; one of them is based on
the germination and plant lets growth, even
though the root promotion is a major marker which measures the beneficial effect of
plant growth promoting rhizobacteria. The
present study analyzed the bacterization
effect on germination and root elongation
of Axonopus affinis (Chase) and Festucarubra L., as protection and promoting
plant growth mechanisms at the exposition
to a heavy metal. The seeds bacterization
with the rhizobacteria Pseudomonas sp.
Sp7D of both species, showed its promoting potential in the germination and the
plantlets grown as its protecting potential
in cadmium presence for both species;
even that A. affinis (Chase) showed too a
hormetic response with cadmium and the
tolerance to it.