Effect of Chitosan–Caffeic Acid Conjugate and Bacillus subtilis Bacteria on the Protective Reactions in PVY-Infected Plants under Soil Water Deficit

IF 1 4区 生物学 Q4 BIOTECHNOLOGY & APPLIED MICROBIOLOGY Applied Biochemistry and Microbiology Pub Date : 2024-12-18 DOI:10.1134/S0003683824605560
J. N. Kalatskaja, L. G. Yarullina, N. A. Yalouskaya, G. F. Burkhanova, E. I. Rybinskaya, E. A. Zaikina, I. A. Ovchinnikov, V. O. Tsvetkov, K. M. Herasimovich, E. A. Cherepanova, O. A. Ivanov, K. S. Hileuskaya, V. V. Nikalaichuk
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Abstract

The effect of chitosan–caffeic acid (Ch–CA) conjugate separately and in combination with a mixture of Bacillus subtilis 47 on the plant defense against PVY under optimal hydration and water deficit in soil was evaluated. The treatments of Ch–CA and Ch–CA+B. subtilis 47 on healthy potato plants under optimal soil moisture conditions demonstrated the accumulation of proline and phenolic compounds, as well as the activation of PPO, which collectively led to an increase in the nonspecific plant defenses. The application of Ch–CA resulted in a reduction of PVY infection in potato plants grown under both optimal and soil moisture-deficient conditions and led to an increase in the potato mini-tuber’s mass. The combination of B. subtilis 47 and Ch–CA proved effective in reducing the infection level exclusively under conditions of soil water deficit. It has been demonstrated that the primary factor influencing the development of resistance in potato plants to PVY under moisture-limiting conditions is associated with an elevated peroxidase activity and alterations in antioxidant activity within plant tissues.

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壳聚糖-咖啡酸共轭物和枯草芽孢杆菌对土壤水分亏缺条件下pvy侵染植物保护反应的影响
研究了壳聚糖-咖啡酸(Ch-CA)偶联物单独和与枯草芽孢杆菌47混合在最佳水化条件和土壤水分亏缺条件下对植物抗PVY的影响。Ch-CA和Ch-CA +B的处理。在最佳土壤湿度条件下,枯草杆菌47在健康马铃薯植株上表现出脯氨酸和酚类化合物的积累,以及PPO的激活,这些共同导致植物非特异性防御增加。施用Ch-CA后,在适宜和土壤缺水条件下,马铃薯PVY侵染率均有所降低,马铃薯小块茎质量增加。在土壤水分亏缺条件下,枯草芽孢杆菌47与Ch-CA联合施用能有效降低侵染水平。研究表明,在水分限制条件下,影响马铃薯植株对PVY抗性发展的主要因素与植物组织中过氧化物酶活性的升高和抗氧化活性的改变有关。
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来源期刊
Applied Biochemistry and Microbiology
Applied Biochemistry and Microbiology 生物-生物工程与应用微生物
CiteScore
1.70
自引率
12.50%
发文量
75
审稿时长
6-12 weeks
期刊介绍: Applied Biochemistry and Microbiology is an international peer reviewed journal that publishes original articles on biochemistry and microbiology that have or may have practical applications. The studies include: enzymes and mechanisms of enzymatic reactions, biosynthesis of low and high molecular physiologically active compounds; the studies of their structure and properties; biogenesis and pathways of their regulation; metabolism of producers of biologically active compounds, biocatalysis in organic synthesis, applied genetics of microorganisms, applied enzymology; protein and metabolic engineering, biochemical bases of phytoimmunity, applied aspects of biochemical and immunochemical analysis; biodegradation of xenobiotics; biosensors; biomedical research (without clinical studies). Along with experimental works, the journal publishes descriptions of novel research techniques and reviews on selected topics.
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