20.500.12556/RUL-189474 The role of biological preparations in reducing the impact of soybean mosaic virus (SMV) in soybean plants Vloga bioloških pripravkov pri zmanjševanju vpliva virusa mozaika soje (SMV) na rastline soje This study evaluated SMV infection on physiological and biochemical parameters of soybean cultivars Baraka and Tomaris in Uzbekistan, assessing the antiviral efficacy of biological preparations. Plants were mechanically inoculated with SMV and treated with Bioeffekt and BIOVAK-Y24, alongside with chemical reference Selecton. Virus presence was confirmed via RT-PCR targeting the P1 gene. SMV infection reduced chlorophyll a content by 0.6-0.9 % and total seed protein content by 3.8-4.7 % across both cultivars. In response to viral stress, endogenous peroxidase activity decreased by 9.1 % in ‘Tomaris’ and 20.0 % in ‘Baraka’. However, biological preparations significantly mitigated virus-induced damage and stimulated plant defense. Bioeffekt demonstrated the highest efficacy, boosting chlorophyll a content by up to 24.5 % and enhancing seed protein content by 7.5-18.3 % compared to infected untreated controls. Furthermore, Bioeffekt and BIOVAK-Y24 sharply up-regulated peroxidase activity by 86.4-149.7 % and 52.6-109.8 %, respectively, indicating strong activation of the host antioxidant system and induced systemic resistance. Conversely, Selecton showed limited recovery effects. These findings indicate that Bacillus-based biological preparations represent an environmentally safe, highly effective strategy for managing SMV infection in regional soybean cultivation. Bacillus based preparations biocontrol Glycine max L. induced systemic resistance (ISR) peroxidase activity protein content soybean mosaic virus (SMV) Uzbekistan pripravki na osnovi Bacillus biotično varstvo rastlin inducirana sistemska odpornost aktivnost peroksidaze vsebnost beljakovin sojin mozaični virus (SMV) Uzbekistan true false true Angleški jezik Slovenski jezik Članek v reviji 2026-10-07 15:26:14 2026-10-07 15:26:24 2026-10-10 03:36:04 0000-00-00 00:00:00 2026 0 0 10 str. no. 3 Vol. 122 2026 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 631 1854-1941 10.14720/aas.2026.122.3.26995 294105859 JUMAYOROV++et+al.+(F).pdf JUMAYOROV++et+al.+(F).pdf 1 7E4D8AE0BB67FABBCEB073DF0ACB2008 bddff44f3771d1e3e1539bac81ff68013fdf25e99d8ff7978d791061862159eb adefd471-c252-11f1-8bc5-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=250059 https://journals.uni-lj.si/aas/article/view/26995/22593 1 8f69f28e-c252-11f1-8bc5-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=250058 Biotehniška fakulteta Acta agriculturae Slovenica Acta agriculturae Slovenica 0 0 0