Article
Environmental Sciences
Nanxiong Chen, Jiaojiao Jin, Yibin Chen, Yicheng Hu, Yuchun Shen, Sedong Li
Summary: This study compared the transcriptome of Litopenaeus vannamei Zoea larvae and adults infected by Vibrio parahaemolyticus using high-throughput Illumina sequencing. The results showed that pathways involved in the innate immune response were more enriched in the Zoea stage compared to the adult stage, suggesting the existence of innate immunity against Vibrio vulnificus during the Zoea larvae stage. These findings provide useful information for the study of innate immunity in shrimp larvae.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Chemistry, Medicinal
Xinjia Lv, Shihao Li, Yang Yu, Xiaojun Zhang, Fuhua Li
Summary: This study reveals that a crustin called LvCrustin I-2 can resist bacterial infection by regulating the balance of intestinal microbiota and has an impact on the intestinal epithelial barrier and immune function in shrimp.
Article
Fisheries
Miao Miao, Shihao Li, Yang Yu, Fuhua Li
Summary: Two genes, LvLysM1 and LvLysM2, encoding LysM-containing proteins were identified in Litopenaeus vannamei shrimp, and their functions and potential genetic markers for disease resistance breeding were analyzed. LvLysM2 showed binding activity with different bacterial polysaccharides, while LvLysM1 did not. Knocking down LvLysM1 or LvLysM2 resulted in increased mortality of shrimp after Vibrio parahaemolyticus infection, and some SNPs in these genes were correlated with shrimp resistance to VpAHPND.
DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY
(2023)
Article
Fisheries
Hang Yuan, Minghua Xie, Naijie Hu, Yudong Zheng, Cuihong Hou, Beiping Tan, Lili Shi, Shuang Zhang
Summary: The effects of different stocking densities on Litopenaeus vannamei were investigated in terms of growth performance, immune response, and transcriptome. The results showed that increasing stocking density significantly decreased the survival rate, final body weight, weight gain rate, specific growth ratio, and protein efficiency ratio of L. vannamei. It also led to changes in the activities of immune enzymes and gene expression in the hemocytes.
FISH & SHELLFISH IMMUNOLOGY
(2023)
Article
Fisheries
Yuanmao Yao, Lili Shi, Wei Xiao, Sixin Guo, Saiya Liu, Haoyang Li, Shuang Zhang
Summary: PAH is a key enzyme involved in immune defense reactions by providing the starting material for synthesizing catecholamines and melanin. LvPAH was identified from Litopenaeus vannamei, showing constitutive expression with the highest levels in the eyestalk. Inhibition of LvPAH resulted in decreased survival rates and increased viral loads in L. vannamei after WSSV infection.
FISH & SHELLFISH IMMUNOLOGY
(2022)
Article
Fisheries
Xianliang Zhao, Dong Yang, Mingqi Zhong, Zhongyang Lin, Defu Yao, Yueling Zhang
Summary: In this study, the researchers identified the outer membrane protein LamB of V. parahaemolyticus and its interaction with shrimp hemocyanin. They also found that LamB could down-regulate the expression of Toll2, LGBP, and hemocyanin, and increase bacterial loading in shrimp hemolymph.
Article
Immunology
Mediha Yildirim-Aksoy, Rashida Eljack, Eric Peatman, Benjamin H. Beck
Summary: This study evaluated the changes in hematology, immunology, and biochemical values in the hemolymph of shrimp infected with Vibrio parahaemolyticus. The results showed that shrimp's immune response was altered, and the hemolymph parameters could be used to assess the health status of shrimp.
MICROBIAL PATHOGENESIS
(2022)
Article
Multidisciplinary Sciences
Ubair Nisar, Hongzhi Zhang, Mahida Navghan, Yugui Zhu, Yongtong Mu
Summary: The study conducted in intensified shrimp farms in Gujarat aimed to highlight the profitability and production function analysis of Penaeus monodon and Litopenaeus vannamei. The results showed that more intensively managed farms performed better than less intensive farms, with feed being the most significant input for production of both species. The average net returns per hectare per year were $16313.13 for Penaeus monodon and $41640.99 for Litopenaeus vannamei.
Article
Fisheries
Md. Rahamat Ullah, Md. Amirul Islam, Abu Bakker Siddique Khan, Aovijite Bosu, Farhana Yasmin, Md. Monjurul Hasan, Md. Mohidul Islam, Md. Anisur Rahman, Yahia Mahmud
Summary: Seaweed aquaculture in Bangladesh shows potential for increasing incomes in fishing villages, with the most suitable conditions being a stocking density of 2Kg/m2 and a water depth of 0.5m for cultivating red seaweed. This method yields the highest daily growth rate and biomass production.
AQUACULTURE REPORTS
(2023)
Article
Environmental Sciences
Xiaohui Sun, Jia Liu, Shijing Deng, Renhe Li, Wenhua Lv, Shufeng Zhou, Xu Tang, Yun-zhang Sun, Mingyue Ke, Kunming Wang
Summary: The study found that Bacillus velezensis DH82 strain has the ability to inhibit Vibrio parahaemolyticus, regulate pathogenicity and bacterial growth, and has potential application value in aquaculture.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Immunology
Jassy Mary S. Lazarte, Young Rim Kim, Jung Seok Lee, Jin Hong Chun, Si Won Kim, Jae Wook Jung, Jaesung Kim, Pattanapon Kayansamruaj, Kim D. Thompson, Hyeongsu Kim, Tae Sung Jung
Summary: This study demonstrates that passive immunization using VLRB-based antibodies can effectively neutralize toxins associated with AHPND, providing a potential alternative to traditional immunoglobulin-based antibodies for managing AHPND outbreaks in shrimp farms.
Article
Chemistry, Applied
Fengyan Liang, Chengbo Sun, Sidong Li, Tingting Hou, Chengpeng Li
Summary: The chitosan-gentamicin conjugate (CS-GT) has been shown to enhance the immune response and disease resistance of Litopenaeus vannamei against Vibrio parahaemolyticus, possibly by stimulating lysosomal phagocytosis of pathogens.
CARBOHYDRATE POLYMERS
(2021)
Article
Fisheries
Guillermo Bardera, Matthew A. G. Owen, Felipe N. Facanha, Jose M. Alcaraz-Calero, Mhairi E. Alexander, Katherine A. Sloman
Summary: This study aimed to investigate the effects of stocking density and dominance hierarchies on the feeding behavior of Pacific white shrimp. Results showed that high stocking density led to a decrease in time spent on feeding areas but an increase in relative feed consumption. Shrimp in low stocking density exhibited higher levels of exploratory behavior, indicating reduced feeding motivation.
Article
Fisheries
Zi-ang Wang, Jiefu Zheng, Linwei Yang, Hongliang Zuo, Shengwen Niu, Shaoping Weng, Jianguo He, Xiaopeng Xu
Summary: Research on the Pacific white shrimp LvWnt11 gene show that it plays different roles in immune responses against Vibrio parahaemolyticus and white spot syndrome virus infections. LvWnt11 regulates expression of various immune-related factors and may help to uncover immune mechanisms in crustaceans.
Article
Biology
Miao Miao, Shihao Li, Yuan Liu, Yang Yu, Fuhua Li
Summary: Acute hepatopancreas necrosis disease (AHPND) is a lethal disease caused by Vibrio parahaemolyticus, which hinders the development of shrimp aquaculture. In this study, comparative transcriptomic analysis was performed to investigate metabolic changes in shrimp hepatopancreas after V. parahaemolyticus infection. The results revealed that pathways related to metabolism were significantly upregulated, indicating the important role of shrimp metabolism in response to Vibrio infection.