克里索波特 (Chrysoporthe brasiliensis sp.) 是一个葡萄树. 在巴西东南部的 Melastomataceae 中具有致病性
Gabrielle Avelar Silva1, Mara Elisa Soares Oliveira2, Géssica Mylena Santana Rêgo1
1Department of Plant Pathology, Universidade Federal de Lavras, 3037, Lavras, Minas Gerais, Brazil.
Fungal biology
|May 25, 2024
概括
在巴西的 Melastomataceae 植物上发现了一种新的真菌物种 Chrysoporthe brasilensis. 这种侵袭性的病原体会导致大量的树木疾病,对全球本土的树构成威胁.
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.
- 森林科学 森林科学 森林科学
背景情况:
- Melastomataceae 种类是 Chrysoporthe 菌的常见宿主,它们会导致破坏性树木疾病,如茎癌和树枝死亡.
- 在Miconia spp.上观察到类似的真菌. 和巴西的Rynchanthera grandiflora,这促使进一步的调查.
研究的目的:
- 在巴西,从患病的梅拉斯托马属植物中分离和识别状真菌.
- 用形态学和遗传学分析来描述新的真菌物种.
- 为了确定新发现物种的病原性.
主要方法:
- 从受感染的植物组织中分离的真菌.
- 菌分离物的形态特征.
- 基于DNA序列的遗传学分析.
- 通过人工注射进行致病性测试.
主要成果:
- 一个新的物种,Chrysoporthe brasilensis sp.nov.,被确定.
- 在R. grandiflora和M. theaezans.上接种时,Chrysoporthe brasilensis被证明是一个积极的病原体.
- 这项研究证实了巴西的 Melastomataceae 种群中存在致病性 Chrysoporthe 物种.
结论:
- 克里索波特 (Chrysoporthe brasilensis) 是一种新发现的,具有攻击性的真菌病原体.
- 这一发现凸显了新花物种对本地花的潜在威胁,包括经济上重要的属,如树.
- 持续的监测和研究对于管理森林生态系统中新出现的真菌病至关重要.
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