Elicitor from <i>Trichothecium roseum</i> Activates the Disease Resistance of Salicylic Acid, Jasmonic Acid, and Ca<sup>2+</sup>-Dependent Pathways in Potato Tubers
The effects of a fungal elicitor from <i>Trichothecium roseum</i> on signal pathways of salicylic acid (SA), jasmonic acid (JA), and Ca<sup>2+</sup> in potato tubers were investigated. The results showed that fungal elicitor treatment effectively inhibited the lesion diameter...
में बचाया:
| मुख्य लेखकों: | , , , , , , |
|---|---|
| स्वरूप: | लेख |
| भाषा: | अंग्रेज़ी |
| प्रकाशित: |
MDPI AG
2025-06-01
|
| श्रृंखला: | Journal of Fungi |
| विषय: | |
| ऑनलाइन पहुंच: | https://www.mdpi.com/2309-608X/11/7/467 |
| टैग: |
टैग जोड़ें
कोई टैग नहीं, इस रिकॉर्ड को टैग करने वाले पहले व्यक्ति बनें!
|
| सारांश: | The effects of a fungal elicitor from <i>Trichothecium roseum</i> on signal pathways of salicylic acid (SA), jasmonic acid (JA), and Ca<sup>2+</sup> in potato tubers were investigated. The results showed that fungal elicitor treatment effectively inhibited the lesion diameter of <i>Fusarium sulphureum</i> in vivo, which was 17.5% lower than that of the control. In addition, fungal elicitor treatment triggered an increase in O<sub>2</sub><sup>−</sup> production and H<sub>2</sub>O<sub>2</sub> content. The fungal elicitor enhanced the activities and gene expression levels of isochorismate synthase (ICS), phenylalanine ammonia lyase (PAL), allene oxide cyclase (AOC), allene oxide synthase (AOS), lipoxygenase (LOX), and Ca<sup>2+</sup>-ATPase. Furthermore, the fungal elicitor promoted an increase in calmodulin (CaM) content. Protective enzymes (dismutase (SOD), catalase (CAT), polyphenol oxidase (PPO), chitinase (CHI), and β-1,3-glucanase (Glu)) and disease-resistance-related genes (<i>PR1</i>, <i>PR2</i>, and <i>PDF1.2</i>) were induced to be upregulated by elicitor treatment. These results indicated that the fungal elicitor induced disease resistance by accelerating the accumulation of reactive oxygen species (ROS), activating SA, JA, and Ca<sup>2+</sup> signaling, and upregulating resistance genes. The results of this study revealed the molecular mechanism of fungal elicitor-induced resistance in the potato, which provides a theoretical basis for the mining of new, safe, and efficient elicitor-sourced antifungal agents and is of great importance for the effective control of potato dry rot disease. |
|---|---|
| आईएसएसएन: | 2309-608X |