Diversity and Aggressiveness of the Species Complex on Sunflower in Serbia.

This study aimed to investigate the species associated with Phomopsis stem canker of sunflower ( L.) in Serbia. The significant increase in sunflower and soybean ( [L.

The Biochemical Response of Soybean Cultivars Infected by Species Complex.

Oxidative stress in soybean plants infected with isolates was evaluated in order to select (1) the least aggressive inoculation method, (2) to determine the most aggressive isolate, and (3) to determine the most tolerant soybean cultivar to this isolate. Based on the present malondialdehyde (MDA) content, the main end product of the lipid peroxidation process, and the biomarker for oxidative stress, the mycelium contact method was chosen as the least aggressive inoculation method, compared to the toothpick method and plug method. The activity of the antioxidant enzymes (superoxide-dismutase (SOD), catalase (CAT), and peroxidase (PX)), the reduced glutathione (GSH) content, and the level of lipid peroxidation (LP) were measured in soybean cv.

Susceptibility of the Most Popular Soybean Cultivars in South-East Europe to (Tassi) Goid.

Oxidative stress in soybean seedlings and the length of the soybean stem lesions infected with the fungus (Tassi) Goid were evaluated to determine the most tolerant soybean cultivar to this pathogen. The level of superoxide anion radical (O) production, the activity of the antioxidant enzyme superoxide-dismutase (SOD), and the intensity of lipid peroxidation (LP) were measured in four soybean cultivars: Favorit, Atlas, Victoria, and Rubin. Results showed that O radical production and SOD activity were the most elevated in the cv.