亚洲菌候群 (Candidatus Liberibacter asiaticus) 在循环传播性传染性感染中利用psyllid载体的细胞骨系统
Zhiqiang Li1, Xiao Yang1, Yuxin Guo1
1State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China.
Microbiological research
|December 14, 2024
概括
亚洲菌候群 (Candidatus Liberibacter asiaticus,CLas) 剥削了亚洲类植物.
科学领域:
- 植物病理学 植物病理学
- 昆虫学 昆虫学是一门学科.
- 微生物学 微生物学
背景情况:
- 黄龙 (HLB) 是一种由Candidatus Liberibacter asiaticus (CLas) 引起的破坏性类病.
- 克拉斯是由亚洲类植物,Diaphorina citri.传播的.
- 在D. citri中,CLas循环的确切机制尚未完全理解.
研究的目的:
- 为了阐明在D. citri. 中的CLas的顺序感染途径.
- 研究细胞骨蛋白在CLas传播中的作用.
- 为了解释HLB的快速传播.
主要方法:
- 免疫光显微镜和电子显微镜被用来跟踪CLas.
- 实验涉及抑制活性丝和降低α-actinin的表达.
- 在D. citri.中注射了CLas的原核体表达的外膜蛋白 (OMP).
主要成果:
- 首先,CLas感染过室表皮,然后扩散到内脏肌肉.
- CLas利用细胞骨α-actinin,由其OMP招募,用于感染和传播.
- 抑制actin或α-actinin显著降低了CLas的感染和传播.
- 通过招募α-actinin,OMP注射模仿了自然的CLas感染.
结论:
- CLas利用D. citri的α-actinin和actin机制来克服中肠障碍物.
- 这种机制有助于快速的CLas在psyllid载体内的循环.
- 了解这些机制,可以了解HLB的快速传播.
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