Reaction of tomato male gametophyte to the action of viral phytopathogens

Abstract

The article presents the results of study on the influence of viral phytopathogens on the variability of pollen productivity and the quality of the tomato male gametophyte. It was shown that infection of plants with viruses led to changes in the number of pollen grains and variability of the functional traits of the male gametophyte, which manifested themselves as responses of stimulation, inhibition, or neutral effects. The main sources of variability of pollen traits affected by infection were the genotype and viral agents. The unequal value of pollen grains in terms of the rate of germination and growth of pollen tubes was established. Genotypes that combine a high level of pollen viability to infection with different viruses have been identified. These genotypes can be used in further research.