TERPINOLENE IS AN EFFECTIVE ESSENTIAL OIL COMPOUND TO PROTECT Hordeum vulgare L. FROM Fusarium avenaceum

Fusarium avenaceum (Fr.) Sacc. is an important phytopathogen. Fight against F. includes primarily fungicide usage. However, novel strategies are needed in a struggle with avenaceum. In this study, terpinolene was used as antimicrobial agent, and the harmlessness of tested on two contrast barley genotypes, Hordeum vulgare L. cv. Cervoise H. Premium. Firstly, minimum inhibitory concentration (MIC) half (IC50) were detected 6 3 µg µL-1. Quantitative real-time polymerase chain reaction (qRT-PCR) assay informative about effects enniatin zearalenone biosynthesis Terpinolene leads to potential decreased no significant differences recorded for gene expression aurofusariun biosynthesis. barley, electroconductivity (EC), catalase (CAT) activity, coupled restriction enzyme digestion-random amplification (CRED-RA), qRT-PCR assays tested. No ion leakage (p>0.05) detected. Similarly, CAT activity water loss rate (WLR) values sets not affected by treatment majority experiment sets. Relatively low levels genomic template instability (75-85%) epigenetics changes (11-20.6%) due treatment. WRKY6, WRKY24, WRKY41 expressions significantly changed. The findings showed that could be accepted plant protective agent phytopathogenic fungi.