Infection with infectious precocious virus (IPV) suppresses infection with Decapoda iridescent virus 1 (DIV1) in Macrobrachium rosenbergii

IF 3.6 3区生物学 Q1 ZOOLOGY

Journal of invertebrate pathology Pub Date : 2025-04-14 DOI:10.1016/j.jip.2025.108337

Haoyu Lou , Guohao Wang , Xuan Li , Chengyan Zhou , Xiaomeng Guo , Liying Wang , Qiongying Tang , Guoliang Yang , Xuan Dong , Jie Huang

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Abstract

In recent years, diseases caused by infectious precocious virus (IPV) or Decapoda iridovirus 1 (DIV1) have resulted in significant losses to the giant freshwater prawn (Macrobrachium rosenbergii) industry, threatening sustainable aquaculture development of this species. Co-infection with these two viruses was found in farmed prawns. This study investigated the biological characteristics of co-infection in M. rosenbergii through artificial infection with IPV and DIV1. The clinical signs of prawns co-infected with both viruses were observed, histopathological analysis, RT-qPCR or qPCR and in situ hybridization or in situ DIG-labeling-loop-mediated DNA amplification experiments to confirm the co-infection in prawns. The results showed that infection with DIV1 in M. rosenbergii was suppressed by infection with IPV in the co-infection group with a significant lower mortality, weaker histopathological changes, and reduced DIV1 loading compared with prawns only infected with DIV1. This study offers valuable insights for the prevention and control of these dual diseases.

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罗氏沼虾感染感染性早熟病毒（IPV）可抑制彩虹十足病毒1 （DIV1）的感染

近年来，由感染性早熟病毒（IPV）或虹膜十足病毒1 （DIV1）引起的疾病给罗氏沼虾（Macrobrachium rosenbergii）产业造成了重大损失，威胁到该物种的可持续养殖发展。在养殖对虾中发现了这两种病毒的共同感染。本研究通过人工感染IPV和DIV1，研究了罗氏分枝杆菌共感染的生物学特性。观察两种病毒共感染对虾的临床表现、组织病理学分析、RT-qPCR或qPCR及原位杂交或原位dig标记环介导的DNA扩增实验，证实两种病毒共感染对虾。结果表明，与仅感染DIV1的对虾相比，感染IPV可抑制罗氏沼虾DIV1的感染，其死亡率明显降低，组织病理变化较弱，DIV1的负荷也较低。本研究为预防和控制这些双重疾病提供了有价值的见解。

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来源期刊

Journal of invertebrate pathology 生物-动物学

CiteScore

6.10

自引率

5.90%

发文量

审稿时长

1 months

期刊介绍： The Journal of Invertebrate Pathology presents original research articles and notes on the induction and pathogenesis of diseases of invertebrates, including the suppression of diseases in beneficial species, and the use of diseases in controlling undesirable species. In addition, the journal publishes the results of physiological, morphological, genetic, immunological and ecological studies as related to the etiologic agents of diseases of invertebrates. The Journal of Invertebrate Pathology is the adopted journal of the Society for Invertebrate Pathology, and is available to SIP members at a special reduced price.