MONITORING THE SPREAD OF 'CANDIDATUS PHYTOPLASMA SOLANI' IN MOLDAVIAN TOMATO VARIETIES
AIGHIUNI BAHSIEV 1*, IRINA ZAMORZAEVA 1, NADEJDA MIHNEA 2 1. Moldova State University, Institute of Genetics, Physiology and Plant Protection, Laboratory of Molecular Genetics, Padurii Street, 20, Chisinau, Republic of Moldova, e-mail: aighiuni.bahsiev@gmail.com; izamorz@gmail.com
2. Moldova State University, Institute of Genetics, Physiology and Plant Protection, Laboratory of Applied Genetics, Padurii Street, 20, Chisinau, Republic of Moldova, e-mail: mihneanadea@yahoo.com
* Corresponding authorâs
The molecular diagnosis of the spread of the pathogen 'Candidatus Phytoplasmasolani' was carried out in two local Moldavian varieties of tomato, Desteptarea and Mary Gratefully, at the stage of mass fruit ripening during two growing seasons (2020 and 2022). A relatively low level of infection of the tomato field was revealed for both studied varieties in these years, especially compared with the data of the phytoplasma distribution for the previous years of the study, 2018 and 2019. Possible reasons for the sharp decrease of tomato infection in recent years, requiring further additional study, are discussed. The main result of the research is that both studied varieties, Desteptarea and Mary Gratefully, are not resistant to 'Ca. P. solani' as the variety with the highest / lowest level of the infection alternated between the growing seasons. Thus, the level of infection with phytoplasma in two varieties of tomato varied according to the conditions of the year, without being a characteristic of the genotype.
