Browsing by Author "Grăjdieru, Cristina"

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    EVALUATION OF RESISTANCE TO TOXIGENIC FUNGI IN SEVERAL MAIZE INBRED LINES
    (CEP USM, 2022-09-29) Balici, Еlena; Grăjdieru, Cristina
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    IDENTIFICAREA GENETICO-MOLECULARĂ A GENOTIPURILOR DE PORUMB (ZEA MAYS L.) REZISTENTE LA UNII PATOGENI FUNGICI
    (2024) Grăjdieru, Cristina; Tumanova, Lidia
    Scopul: elaborarea de metode rapide și precise pentru evaluarea susceptibilității porumbului la agenții patogeni fungici în scopul selectării germoplasmei valoroase ca material de bază pentru programele de ameliorare a porumbului bazate pe rezistența la ciuperci din genurile Fusarium, Aspergillus, Penicillium.
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    IDENTIFICAREA GENETICO-MOLECULARĂ A GENOTIPURILOR DE PORUMB (ZEA MAYS L.) REZISTENTE LA UNII PATOGENI FUNGICI
    (2024) Grăjdieru, Cristina
    Scopul lucrării: elaborarea metodelor rapide și precise pentru evaluarea susceptibilității porumbului la agenții patogeni fungici în scopul selectării germoplasmei valoroase ca material de bază pentru programele de ameliorare a porumbului bazate pe rezistența la fungi din genurile Fusarium, Aspergillus, Penicillium.
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    MOLECULAR ASSESSMENT OF F. GRAMINEARUM IN SEVERAL MOLDAVIAN MAIZE GENOTYPES
    (CEP USM, 2022-09-29) Grăjdieru, Cristina
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    Molecular-genetic identification of certain fruit tree mycopathogens transmitted by aphid vectors [Articol]
    (Editura USM, 2025) Uzun, Tatiana; Grăjdieru, Cristina
    This study focuses on the molecular-genetic identification of phytopathogenic fungi transmitted by aphids in fruit orchards. Specimens of Dysaphis and Hyalopterus aphids were collected from apple and plum trees respectively, and DNA was extracted using the SDS protocol. A two-step PCR method with species-specific primers targeting fungal pathogens (Monilinia spp., Penicillium spp., and Botrytis cinerea) was applied. Amplification products revealed the presence of P. chrysogenum, M. fructigena, and B. cinerea in samples from Hyalopterus, while Dysaphis samples tested negative for all target fungi. These results confirm that Hyalopterus aphids can act as vectors for both generalist and specialist phytopathogens at early stages of the growing season. The findings highlight the complex multi-level interactions between insect vectors, pathogens, and host plants in agroecosystems. Continuous monitoring and early detection of secondary fungal infections are essential for maintaining phytosanitary stability.