Wang Wenzhong, Zhang Dongrui, Thomsen Pia Heltoft, Sun Meng, Chang Ying
Institute of Industrial Crops, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China.
College of Life Sciences, Northeast Agricultural University, Harbin 150030, China.
Int J Mol Sci. 2025 Feb 13;26(4):1573. doi: 10.3390/ijms26041573.
Potato dry rot and wilt are the most important soil- and seed-borne diseases in potatoes. They cause high economic losses during potato growth and storage across the world. Previous observations have shown that dryocrassin ABBA can induce resistance in potatoes. However, little is known about whether dryocrassin ABBA can suppress . In this research, we determined that exogenous dryocrassin ABBA significantly inhibited the mycelial growth, changed the cell ultrastructure, increased the MDA content, and decreased the antioxidant enzyme activity of . The transcriptome analysis of with or without dryocrassin ABBA indicated that 1244 differentially expressed genes (DEGs) were identified, of which 594 were upregulated and 650 were downregulated. GO term analysis showed that the DEGs were mostly related to biological processes. The KEGG pathway was mainly related to carbohydrate, amino acid, and lipid metabolism. Moreover, most of the expressions of PCWDEs, HSPs, and MFS were downregulated, decreasing the stress capacity and weakening the pathogenicity of with dryocrassin ABBA treatment. These findings contribute to a new understanding of the direct functions of dryocrassin ABBA on and provide a potential ecofriendly biocontrol approach for potato dry rot and wilt.
马铃薯干腐病和枯萎病是马铃薯最重要的土传和种传病害。它们在全球马铃薯生长和储存期间造成巨大经济损失。先前的观察表明，干酪素ABBA可诱导马铃薯产生抗性。然而，关于干酪素ABBA是否能抑制（病害）却知之甚少。在本研究中，我们确定外源干酪素ABBA显著抑制了（病原菌）菌丝生长，改变了细胞超微结构，增加了丙二醛含量，并降低了（病原菌）抗氧化酶活性。对有无干酪素ABBA处理的（病原菌）进行转录组分析表明，共鉴定出1244个差异表达基因（DEGs），其中594个上调，650个下调。基因本体（GO）术语分析表明，这些差异表达基因大多与生物学过程相关。京都基因与基因组百科全书（KEGG）通路主要与碳水化合物、氨基酸和脂质代谢相关。此外，大多数植物细胞壁降解酶（PCWDEs）、热休克蛋白（HSPs）和主要易化子超家族（MFS）的表达下调，降低了（病原菌）的胁迫能力并减弱了经干酪素ABBA处理的（病原菌）的致病性。这些发现有助于对干酪素ABBA对（病原菌）的直接作用有新的认识，并为马铃薯干腐病和枯萎病提供了一种潜在的生态友好型生物防治方法。
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