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| DOI | 10.3390/life14010160 |
| Heat Pre-Treatment Modified Host and Non-Host Interactions of Powdery Mildew with Barley Brassinosteroid Mutants and Wild Types | |
| 发表日期 | 2024 |
| EISSN | 2075-1729 |
| 起始页码 | 14 |
| 结束页码 | 1 |
| 卷号 | 14期号:1 |
| 英文摘要 | High temperatures associated with climate change may increase the severity of plant diseases. This study investigated the effect of heat shock treatment on host and non-host barley powdery mildew interactions using brassinosteroid (BR) mutants of barley. Brassinosteroids are plant steroid hormones, but so far little is known about their role in plant-fungal interactions. Wild type barley cultivar Bowman and its near-isogenic lines with disturbances in BR biosynthesis or signalling showed high compatibility to barley powdery mildew race A6, while cultivar Delisa and its BR-deficient mutants 522DK and 527DK were fully incompatible with this pathogen (host plant-pathogen interactions). On the other hand, Bowman and its mutants were highly resistant to wheat powdery mildew, representing non-host plant-pathogen interactions. Heat pre-treatment induced shifts in these plant-pathogen interactions towards higher susceptibility. In agreement with the more severe disease symptoms, light microscopy showed a decrease in papillae formation and hypersensitive response, characteristic of incompatible interactions, when heat pre-treatment was applied. Mutant 527DK, but not 522DK, maintained high resistance to barley powdery mildew race A6 despite heat pre-treatment. By 10 days after heat treatment and infection, a noticeable shift became apparent in the chlorophyll a fluorescence and in various leaf reflectance parameters at all genotypes. |
| 英文关键词 | Blumeria hordei; Blumeria graminis; chlorophyll a fluorescence; leaf spectral reflectance; near-isogenic lines; pathogen inoculation |
| 语种 | 英语 |
| WOS研究方向 | Life Sciences & Biomedicine - Other Topics ; Microbiology |
| WOS类目 | Biology ; Microbiology |
| WOS记录号 | WOS:001152879700001 |
| 来源期刊 | LIFE-BASEL
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/297095 |
| 作者单位 | Polish Academy of Sciences; Franciszek Gorski Institute of Plant Physiology Polish Academy of Sciences; Hungarian Research Network; Hungarian Academy of Sciences; HUN-REN Centre for Agricultural Research; University of Silesia in Katowice |
| 推荐引用方式 GB/T 7714 | . Heat Pre-Treatment Modified Host and Non-Host Interactions of Powdery Mildew with Barley Brassinosteroid Mutants and Wild Types[J],2024,14(1). |
| APA | (2024).Heat Pre-Treatment Modified Host and Non-Host Interactions of Powdery Mildew with Barley Brassinosteroid Mutants and Wild Types.LIFE-BASEL,14(1). |
| MLA | "Heat Pre-Treatment Modified Host and Non-Host Interactions of Powdery Mildew with Barley Brassinosteroid Mutants and Wild Types".LIFE-BASEL 14.1(2024). |
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