致病原体的识别和生物特征,导致Ardisia crispa (Thunb.) 的烟灰斑. 一个A.DCDC
Demei Yang1, Jiangli Luo1, Ying Zhou1
1School of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang, China.
PeerJ
|March 28, 2025
概括
在Ardisia crispa中,灰斑病是由Annulohypoxylon stygium和Diaporthe angelicae引起的,影响植物的光合作用. 传统中医药提取物对这些病原体具有抗真菌特性.
科学领域:
- 植物病理学 植物病理学
- 菌类学 菌类学是指菌类学.
- 药用植物学 医学植物学
背景情况:
- 烟灰斑病显著降低了药用植物Ardisia crispa (AC) 的产量和质量.
- 此前,AC烟灰斑的特定真菌物种和致病机制尚不清楚,这阻碍了有效的疾病管理.
研究的目的:
- 为了识别导致AC中烟灰斑的真菌病原体.
- 研究这些真菌的致病机制和生物特征.
- 评估传统中医药提取物对疾病控制的疗效.
主要方法:
- 传输电子显微镜 (TEM) 和扫描电子显微镜 (SEM) 用于器官分析.
- 差异显示逆转录酶-PCR (DDRT-PCR) 用于基因表达分析.
- 菌隔离,鉴定,致病性测试和生长特征分析.
- 使用传统中医药水提取物进行抗真菌活性测定.
主要成果:
- 经过TEM和SEM检测,病变的AC叶子中的光合作用减少.
- DDRT-PCR识别了与指蛋白,-CoA转移酶和叶绿体相关的差异表达基因.
- 确定了Annulohypoxylon stygium和Diaporthe angelicae作为AC灰斑的致病因子.
- 病原体的最佳生长条件包括pH7-10和弱光;Lonicera fulvotomentosa和Ardisia脆片提取物显示出强烈的抗真菌活性.
结论:
- Annulohypoxylon stygium和Diaporthe angelicae是新报告的病原体,它们在Ardisia crispa中引起了灰斑,影响了叶子的光合作用.
- 这项研究为诊断和预防AC中的灰斑提供了基本的理解.
- 一些中国传统医学的提取物显示出治疗这种疾病的潜力.
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