一种从患病的Macrobrachium rosenbergii中分离出来的致病性Lactococcus garvieae的特征和毒性基因概况
Anirban Paul1, Samikshya Parida1, Snatashree Mohanty1
1National Referral Laboratory for Freshwater Fish Diseases, Fish Health Management Division, ICAR-Central Institute of Freshwater Aquaculture (CIFA), Kausalyaganga, Bhubaneswar, 751002, India.
概括
在印度的养殖淡水中,Lactococcus garvieae引起白肌疾病. 这项研究确定了细菌,其毒性因素和抗生素耐药性,这对于水产养殖中疾病预防至关重要.
科学领域:
- 水生微生物学 水生微生物学
- 游泳池和甲类病理学
- 分子诊断学 分子诊断学
背景情况:
- 马克罗布拉希乌姆 (Macrobrachium rosenbergii) 水产养殖在亚洲至关重要,但受到疾病威胁.
- 牛乳球菌 (Lactococcus garvieae) 是一种已知的鱼类和贝类病原体.
- 在中爆发的白肌病爆发需要病因鉴定.
研究的目的:
- 孤立和描述Lactococcus garvieae作为淡水幼虫白肌疾病的原因.
- 为了确定分离的病原体的抗生素耐药性和重金属耐受性.
- 在隔离物中识别毒性基因和遗传元素.
主要方法:
- 使用生物化学测试和16S rDNA测序,分离和识别细菌.
- 特定物种的PCR和科赫定理用于病因学确认.
- 抗生素易感性,重金属耐受性测定和PCR查毒性基因和整体.
主要成果:
- 牛乳球菌 (Lactococcus garvieae) 被证实是M. rosenbergii.白肌病的致病原体.
- 这种分离物对克林达米辛,塞福西丁,阿莫西西林和co-trimoxazole表现出耐药性.
- 鉴定出了包括血清素,粘附素和I类整合子在内的毒性因子.
结论:
- 这是Lactococcus garvieae在印度淡水中引起疾病的首次报告.
- 这些发现为制定可持续水产养殖的预防策略提供了基础.
- 了解病原体的特征是管理疾病爆发的关键.
更多相关视频
09:44Characterization of a Pathogenic Escherichia coli Strain Derived from Oreochromis spp. Farms Using Whole-Genome Sequencing
Published on: December 23, 2022
2.1K
08:34Identification of Virulence Markers of Mycobacterium abscessus for Intracellular Replication in Phagocytes
Published on: September 27, 2018
8.5K
相关概念视频
01:31Defense Against Bacterial Pathogens
1.4K
The human immune system is a complex network of cells, tissues, and organs that work together to defend the body against bacterial infections. It consists of various immune cells, each playing a specific role in the defense mechanism.
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
1.4K
00:43Lysogenic Cycle of Bacteriophages
61.7K
In contrast to the lytic cycle, phages infecting bacteria via the lysogenic cycle do not immediately kill their host cell. Instead, they combine their genome with the host genome, allowing the bacteria to replicate the phage DNA along with the bacterial genome. The incorporated copy of the phage genome is called the prophage. Some prophages can re-activate and enter the lytic cycle. This often occurs in response to a perturbation, such as DNA damage, but can also transpire in the absence of...
61.7K