ArticleFunctional & integrative genomics2025
Application of quercetin enhances tobacco resistance to Phytophthora nicotianae.
Article in Functional & integrative genomics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
- Progress in understanding the infection mechanisms, soil microecological imbalance, and integrated control strategies of tobacco black shank.Frontiers in microbiology · 2026Review
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Authors and funding
9 authors.
Funding
Abstract
Tobacco black shank disease, caused by Phytophthora nicotianae, is one of the most devastating diseases affecting tobacco growth. Currently, chemical pesticides control is the most rapid and effective method for managing fungal diseases, yet it exerts significant impacts on the environment. Screening natural metabolites from plant that can prevent and control tobacco black shank disease is of great significance in sustainable development of tobacco cultivation. Quercetin is a natural flavonoid compound widely existing in plants and possesses various biological activities, such as antibacterial and antioxidant properties. However, its potential functions in controlling tobacco black shank has not been fully explored. In this study, we found that application of exogenous quercetin could significantly inhibit the growth of P. nicotianae and enhance tobacco resistance to P. nicotianae by enhancing tobacco antioxidant capacity, modulating the expression of cell wall biosynthesis, immune response and hormone signaling transduction related genes. In addition, we found that quercetin treatment could significantly induce the expression of NtMYB4 to enhance plants resistance to P. nicotianae. Furthermore, we found that after inoculation with P. nicotianae, the accumulation of quercetin in the resistant variety was significantly higher than that in the susceptible variety, suggesting its important role in tobacco resistance to P. nicotianae in different varieties. Generally, our study provides new insights into the potential mechanisms by which quercetin promotes tobacco resistance to P. nicotianae, and and lays a theoretical foundation for future direct application of quercetin or breeding of high quercetin content varieties to prevent tobacco black shank disease.
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