β-1,3-glucan effect on the photosynthetic apparatus and oxidative stress parameters of tomato leaves under fusarium wilt.

Liudmila Kabashnikova, Larisa Abramchik, Irina Domanskaya, Galina Savchenko, Sviatoslav Shpileuski

Functional plant biology : FPB 2020 Oct

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The effect of β-1,3-glucan on the photosynthetic apparatus and oxidative stress parameters of tomato (Lycopersicon esculentum Mill., cv. Tamara) leaves under fusarium wilt caused artificially by the fungal pathogen Fusarium oxysporum sp. was studied in 2-month-old tomato plants. Infection of tomato plants with a pathogen causes activation of lipid peroxidation (LPO) processes in leaves and significant changes in the photosynthetic apparatus, which is reflected in a decrease in the chlorophyll (Chl) a and Chl a/Chl b ratio and carotenoid content, disturbances in the absorption and utilisation of light energy in PSII. Pretreatment of plants with β-1,3-glucan contributes to the stabilisation of LPO and normalises the level of a photosynthetic pigments and a course of photochemical processes in the chloroplasts of infected leaves, which indicates the protective activity of a drug.

Citation

Liudmila Kabashnikova, Larisa Abramchik, Irina Domanskaya, Galina Savchenko, Sviatoslav Shpileuski. β-1,3-glucan effect on the photosynthetic apparatus and oxidative stress parameters of tomato leaves under fusarium wilt. Functional plant biology : FPB. 2020 Oct;47(11):988-997