鉴定了在中国感染Gynura bicolor的假定新型卡拉病毒
Lei Xu1, Mengze Guo1, Pingping Sun1
1College of Horticulture and Plant Protection, Inner Mongolia Agricultural University, 010018, Hohhot, Inner Mongolia, China.
Archives of virology
|February 13, 2026
概括
在Gynura双色植物中发现了一种新型的卡拉病毒,暂时命名为gynura双色卡拉病毒 (GbCV),在Gynura双色植物中显示出马赛克和化. 这标志着该植物物种感染卡拉病毒的首次鉴定.
科学领域:
- 植物病毒学 植物病毒学
- 分子生物学分子生物学
- 植物病理学 植物病理学
背景情况:
- 在中国内蒙古的Gynura双色植物显示出马赛克和化症状.
- 病毒感染对作物产量和质量构成重大威胁.
研究的目的:
- 为了确定Gynura bicolor观察到的症状的致病因子.
- 描述新发现的病毒的基因组和遗传学关系.
主要方法:
- 从受感染的叶子样本中对总RNA进行高通量测序 (HTS).
- 逆转录聚合酶链反应 (RT-PCR) 和快速放大cDNA末端 (RACE) 用于基因组测序.
- 序列分析和遗传学重建.
主要成果:
- 在Gynura bicolor中检测到四种已知的病毒和一个未知的病毒.
- 未知病毒的完整基因组 (8,750 nt,积极意义上的ssRNA) 被测序.
- 该病毒与Pseudostellaria heterophylla carlavirus 1 (PhCV1) 具有低序列相同性,低于物种划分值.
- 遗传学分析将病毒置于卡拉病毒属内,被指定为 gynura 双色卡拉病毒 (GbCV).
结论:
- 在Gynura bicolor中发现了一种新型的卡拉病毒,GbCV.
- 这是关于卡拉病毒感染G. bicolor的第一份报告,突出显示了一种新的宿主病毒相互作用.
相关概念视频
Infection
12.8K
When a pathogen enters the body and reproduces, it can cause an infection, damage body cells, and cause illness symptoms that eventually lead to disease. Therefore, its prevention requires breaking the chain of infection.
The chain begins with pathogens: bacteria, viruses, fungi, prions, or parasites such as protozoa helminths. These can be present on the skin as transient or resident flora, or they can be acquired from the environment. Identifying and treating the type of infection and...
The chain begins with pathogens: bacteria, viruses, fungi, prions, or parasites such as protozoa helminths. These can be present on the skin as transient or resident flora, or they can be acquired from the environment. Identifying and treating the type of infection and...
12.8K
Methods of Classification and Identification
1.3K
Bacterial identification relies on a diverse array of techniques to classify and understand microorganisms, each tailored to uncover specific characteristics. Traditional morphological approaches, while still valuable, are limited for closely related or structurally simple organisms. Modern methods integrate biochemical, serological, genetic, and advanced molecular tools to achieve greater accuracy.Morphological and Biochemical TechniquesMorphological characteristics, such as cell shape and...
1.3K
Stages of Infection
65.6K
Stages of infection describe what happens to a susceptible host once a pathogen invades the human body. The stages of infection are incubation, prodromal, illness, stage of decline, and convalescence. The incubation stage is the period from exposure to a pathogen until symptoms start. The infected person is unaware of impending illness as the pathogens grow and multiply within the body. The duration may vary depending on the type of infection. The incubation period of measles averages ten to...
65.6K
Pharmacogenomics: Identification of New Drug Targets
8
Advances in genomics have profoundly influenced drug discovery by increasing both the speed and accuracy of pharmaceutical development. Pharmacogenomics, which examines how genetic variation influences drug response, facilitates the identification of novel therapeutic targets and enables patient stratification for personalized treatment. These strategies contribute to improved drug efficacy, minimized adverse effects, and more efficient clinical trial design.Mapping genetic differences...
8
Defense Mechanism Against Infection
9.8K
Natural flora, body system defenses, and inflammation are natural barriers of the body against infectious agents regardless of previous exposure. Normal floras of the human body refer to the microbial population that colonizes the skin and mucous membranes.
In addition, many body organ systems have unique defenses against infection. The skin is an intact, multilayered surface preventing invasion by microorganisms unless impaired. Mucous membranes lining the mouth, nose, and eyelids are barriers...
In addition, many body organ systems have unique defenses against infection. The skin is an intact, multilayered surface preventing invasion by microorganisms unless impaired. Mucous membranes lining the mouth, nose, and eyelids are barriers...
9.8K
Sexually Transmitted Infections
1.2K
Sexually transmitted infections (STIs) are diseases transmitted primarily through unsafe sexual interactions. Bacteria, viruses, or parasites cause them and can result in severe health complications if untreated.ChlamydiaThe bacterium Chlamydia trachomatis is responsible for the disease Chlamydia, the most common STI in the United States. This peculiar pathogen requires human cells to reproduce, residing intracellularly. The initial infection often goes unnoticed because it typically does not...
1.2K


