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在 Melia dubia 洞穴中,Diaporthe phaseolorum 导致死后疾病. 在卡纳塔卡州 (印度)
1Molecular Phytodiagnostic Laboratory, Department of Studies in Botany, University of Mysore, Manasagangotri, Mysore, India, 570 006.
Archives of microbiology
|February 6, 2024
概括
影响印度梅莉亚杜比亚种植园的一种新的衰退疾病被确定为Diaporthe phaseolorum. 这一发现凸显了迫切需要综合管理策略来保护这种有价值的树木物种.
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.
- 林业林业 林业 林业 林业
背景情况:
- 梅利亚杜比亚 (Melia dubia) 是一种全球重要的树种,用于木材,纸,药用和农业林业.
- 在2019年至2022年期间,死退病在印度卡纳塔克邦的M. dubia种植园造成了重大损失.
研究的目的:
- 为了确定影响梅利亚杜比亚种植园的死退病的致病原体.
- 为制定疾病管理策略提供基础数据.
主要方法:
- 在土豆乳糖 (PDA) 上隔离和培养病原体.
- 孤立病原体的形态文化表征.
- 基因组DNA分离,rDNA放大,测序,以及遗传学分析.
- 科赫的假设 (体外和体内) 证实病原性.
主要成果:
- 这种病原体被确定为Diaporthe phaseolorum (库克和埃利斯) Sacc. 基于形态,文化,序列和遗传学数据.
- 科赫的假设证实D. phaseolorum是病因,复制典型的死后症状.
- 在受影响的地区,疾病发病率达到26.25%,影响了M. dubia的生长.
结论:
- 鉴定出Diaporthe phaseolorum是印度Melia dubia种植园中死退病的病原体.
- 这是印度首次报告D. phaseolorum感染M. dubia的情况.
- 综合疾病管理实践对于减轻这种疾病对M. dubia种植园的影响至关重要.
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