Comparative study of the efficiency of inducers of cotton resistance to verticillium wilt-Reference-Cited by-同舟云学术

Comparative study of the efficiency of inducers of cotton resistance to verticillium wilt

Published:2024-02-15 Issue:1 Volume:58 Page:
ISSN:0026-3648
Container-title:Микология и фитопатология
language:
Short-container-title:Mikologiâ i fitopatologiâ

Author:

Akhmedzhanov I. G.¹,Khotamov M. M.²,Merzlyak P. G.¹

Affiliation:

1. Institute of Biophysics and Biochemistry at the National University of Uzbekistan

2. Institute of Genetics and Plant Experimental Biology of the Academy of Sciences of the Republic of Uzbekistan

Abstract

The effect of pre-sowing seed treatment with immunostimulant Bisol-2, red light and low frequency electromagnetic field on the content of fungitoxic substances of phenolic nature – phytoalexins (isohemigossypol and gossypol-equivalent) in infected etiolated cotton seedlings of S-4727 cultivar infected with Verticillium wilt pathogen was studied. It was found that photostimulation of seeds by red light induces phytoalexin formation in cotton tissues infected by the pathogen 1.5–2 times more effectively in comparison with Bisol-2 preparation or inducer of electromagnetic nature. The correlation between the content of phytoalexins in the tissues of seedlings, parameters of induction curves of chlorophyll fluorescence and the number of plants with signs of wilt lesions grown from treated and untreated seeds with inducers was revealed. This indicates the possibility of using red light and weak low-frequency electromagnetic fields as factors contributing to the intensification of phytoalexin formation in response to Verticillium wilt infection of cotton.

Publisher

The Russian Academy of Sciences

Reference94 articles.

1. Akhiyarov B., Rakhimov R., Kutluev A. The use of Bisol 2 on cucumbers. Ovoshchevodstvo i teplichnoe khozyaystvo. 2017. N2 (150). P. 40–45 (in Russ.).

2. Akhmedzhanov I.G., Gussakovsky E.E., Tashmukhamedov B.A. et al. A method for increasing the resistance of cotton to damage by the causative agent of Verticillium wilt. Authors’ certificate N1782387 of the State Committee for inventions of the USSR, 1992 (in Russ.).

3. Akhmedzhanov I.G., Gussakovsky E.E., Avazkhodzhaev M.H. et al. Regulation of phytoalexin formation in cotton tissues when seeds are irradiated with red light. Uzbekskiy biologicheskiy zhurnal. 1993. N 1. P. 3–5 (in Russ.).

4. Akhmedzhanov I.G., Agishev V.S., Dzholdasova K.B. et al. The use of a portable fluorimeter to study the effect of water deficit on the characteristics of delayed fluorescence of cotton leaves. Doklady Akademii nauk Uzbekistana. 2013. N3. P. 58–60 (in Russ.).

5. Akhmedzhanov I.G., Tonkikh A.K., Khotamov M.M. et al. Method of pre-sowing treatment of cotton seeds. Patent for invention N IAP 05970 of the Agency for intellectual property of the Republic of Uzbekistan (priority of 24.05.2017, N IAP 2017 0197).