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Volume 33, No. (6), 2023 (December)
EFFECT OF VERTICILLİUM WILT ON THE ANTIOXIDANT SYSTEM AND FORMATION OF IRON NANOPARTICLES IN COTTON GENOTYPES
Amrahov Nurlan, Allahverdiyev Valish, Agharzayeva Yaqut, Mammadova Ruhangiz, Mammadov Ziaddin, Omarova Sabina, Khudayev Faig, Nasibova Aygun, Khalilov Rovshan

A. Nurlan¹*, A. Valish², A. Yaqut³, M. Ruhangiz⁴, M. Ziaddin⁵, O. Sabina⁶, K. Faig⁷, N. Aygun⁸, K. Rovshan⁹

¹ a) Department of Molecular biology and Biotechnology, Faculty of Biology,Baku State University, Baku, Republic of Azerbaijan; b) Azerbaijan Research Institute of Crop Husbandry, Ministry of Agricultur,
² D) Department of Biotechnology, Faculty of Natural Sciences, University of Silesia in Katowice, Katowice, Poland,
³ a) Department of Molecular biology and Biotechnology, Faculty of Biology,Baku State University, Baku, Republic of Azerbaijan,
⁴ e) Department of technical and forage plants, Genetic Resources Institute of ANAS, Baku, Republic of Azerbaijan,
⁵ a) Department of Molecular biology and Biotechnology, Faculty of Biology,Baku State University, Baku, Republic of Azerbaijan,
⁶ f) Department of Biophysics and Biochemistry, Faculty of Biology, Baku State University, Baku, Republic of Azerbaijan,
⁷ b) Azerbaijan Research Institute of Crop Husbandry, Ministry of Agriculture,Baku, Azerbaijan,
⁸ f) Department of Biophysics and Biochemistry, Faculty of Biology, Baku State University, Baku, Republic of Azerbaijan; g) Institute of Radiation Problems of ANAS, Baku, Azerbaijan,
⁹ f) Department of Biophysics and Biochemistry, Faculty of Biology, Baku State University, Baku, Republic of Azerbaijan; g) Institute of Radiation Problems of ANAS, Baku, Azerbaijan,

Corresponding Author: nurlan00686@gmail.com
DOI: https://doi.org/10.36899/JAPS.2023.6.0672
Page Number(s): 1322-1332
Published Online First: August 20, 2023
Publication Date: December 13, 2023
ABSTRACT

The effect of a highly virulent fungus Verticillium dahliae Kleb. VD-11, with non-defoliating strain on polyphenol oxidase (PPO) and the antioxidant enzymes, such as guaiacol peroxidase (POX) and superoxide dismutase (SOD), was studied in double haploid cotton variety- Pima 3-79 (Gossypium barbadense L.), highly inbred line TM-1– (Gossypium hirsutum L.), as well as in genotypes CS B-15 and GS B-22, created by the substitution of one chromosome of TM-1 with the chromosome 15 and 22 of Pima 3-79 respectively. The treatment of plants with the pathogen led to an increase in the activity of PPO approximately 1.2 times in the case of TM-1 and CS B-15. However, these changes were insignificant in the case of Pima 3-79 variety, whereas the activity of the enzyme in the case of CS B-22 was decreased apparently. Similar effects were also obtained for POX. After inoculation, the activity of SOD in all genotypes, except CS B-15, was increased. On the contrary, the activity of SOD was decreased in the case of CS B-15 genotype. It was found that plant infection with the pathogen leads to a change in the concentration of free radicals, which, in turn, affects the activity of antioxidant enzymes. The fungal infection also led to the creation of new paramagnetic centers and nanophase crystal-like iron oxide particles in roots, but not in leaves.
Keywords: Cotton, Verticillium dahliae, polyphenol oxidase, antioxidant enzymes, Fe-nanoparticles

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