Article
Environmental Sciences
Yue Sun, Chunying Yuan, Qingman Cui
Summary: The study found that thiamethoxam has acute toxic effects on Eriocheir sinensis, reducing their survival rate and impairing their immune and metabolic systems. Higher concentrations of thiamethoxam resulted in a decrease in immune cells and affected enzyme activity and antioxidant capacity in crabs.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Fisheries
Xuran Liu, Wenlong Wan, Mengge Li, Jiayuan Shi, Jie Xu, Zihan Zhou, Anran Wang, Shuyan Miao
Summary: This study investigated the effects of dietary niacin on the growth performance, intestinal histomorphology, body composition, and antioxidant capacity of juvenile Eriocheir sinensis. The results showed that appropriate dietary niacin improved the growth performance and intestinal histomorphology of the crabs, and enhanced their antioxidant capacity.
AQUACULTURE NUTRITION
(2022)
Article
Biotechnology & Applied Microbiology
Hongli Liu, Yang Feng, Ma Yang, Ya Huang, Minghao Li, Yi Geng, Ping Ouyang, Defang Chen, Shiyong Yang, Lizi Yin, Liangyu Li, Xiaoli Huang
Summary: Research reveals that starvation leads to a decrease in the hepatopancreas index of Chinese mitten crab, affecting tissue structure, metabolism, and angiogenesis. The AKT signaling pathway plays a crucial role in this process, regulating gene expression related to angiogenesis and apoptosis, ultimately causing hepatopancreas atrophy.
Article
Chemistry, Applied
Jiada Lu, Hongwei Luan, Change Wang, Lili Zhang, Wenzheng Shi, Shuang Xu, Yinzhe Jin, Ying Lu
Summary: This study discovered that hemocyanin in crustaceans is allergenic to humans, but there is limited information about its molecular, structural, and allergenic properties. The purified natural protein was identified as Eriocheir sinensis HC by LC-MS/MS, and it showed allergenicity by reacting with serum IgE from crustacean patients. Molecular property analysis revealed that HC is resistant to trypsin digestion, but not heat-stable. Boiling (55.05 ± 3.50%) and steaming (66.84 ± 1.65%) increased β-sheet content and decreased the allergenicity of HC. By comparing the amino acid sequences of eight crustaceans, HC was found to be highly conserved. Five epitopes of HC were identified and validated using a murine sensitization model, with two of them (P3 and P10) matching the predictions from six types of bioinformatics analysis. Combining multiple bioinformatics analyses with a murine sensitization model appears to be an effective method for identifying allergenic epitopes.
Article
Fisheries
Baoli Zhang, Changyue Yu, Yingkai Xu, Ziwei Huang, Yuqiao Cai, Yingdong Li
Summary: Photoperiod plays a vital role in the growth, development, and metabolism of crustaceans. The study revealed that the photoperiod affects the gene expression in the hepatopancreas of Chinese mitten crab, leading to changes in immune mechanisms. High-throughput Illumina sequencing was used to explore the genes associated with immune function, and the results demonstrated the impact of photoperiod on gene expression patterns.
FISH & SHELLFISH IMMUNOLOGY
(2023)
Article
Fisheries
Ju Li, Yuxin Tian, Xiaohong Li, Jinmei Zuo, Ruihao Zhao, Jinsheng Sun
Summary: Limb autotomy has a significant impact on the culture of Chinese mitten crabs. The insulin-like signaling pathway plays a key role in limb regeneration of these crabs. Inhibition of this pathway may reduce limb regeneration rate and the size of newly formed limbs.
FISH & SHELLFISH IMMUNOLOGY
(2022)
Article
Food Science & Technology
Qiu-Ju Wang, Bao-Yuan Zhang, Xiao-Dong Jiang, Xiao-Wen Long, Wang-Ling Zhu, Yong-Ping Xu, Min Wu, Dong-Ming Zhang
Summary: The study found that adult female Chinese mitten crabs with white hepatopancreas syndrome had significantly higher moisture content in their hepatopancreas and ovaries compared to the control group, while hepatopancreas crude fat and ovary crude protein levels were significantly lower. The yellow-white hepatopancreas group had significantly higher total carbohydrate levels and significantly lower crude protein content in ovaries. Additionally, levels of certain amino acids and fatty acids were significantly altered in diseased crabs, with the white hepatopancreas group showing poor nutritional quality.
JOURNAL OF FOOD SCIENCE
(2021)
Article
Environmental Sciences
Bingchan Jia, Yifan Li, Xinyuan Zi, Xiaohong Gu, Hezhong Yuan, Erik Jeppesen, Qingfei Zeng
Summary: Microbial communities play a critical role in aquaculture ecosystems. This study investigates the influence of sediment nutrient levels on microbial communities in Chinese mitten crab culture ponds. The results show that the diversity and composition of microbial communities vary significantly with different levels of sediment nutrient enrichment. Total nitrogen, organic matter, and pH are identified as important factors driving sediment bacterial community aggregation.
ENVIRONMENTAL RESEARCH
(2023)
Article
Agriculture, Dairy & Animal Science
Chunbo Li, Chenchen Shen, Guangpeng Feng, Xiaorong Huang, Xincang Li
Summary: The preference for shelters varies among different developmental stages of Chinese Mitten Crabs (Eriocheir sinensis). Juvenile crabs prefer grass, button-sized crabs prefer mud, and parent crabs prefer rocks. Light, size, feeding habit, predation, and molting are critical factors that affect shelter preference. These findings contribute to a better understanding of the habits of E. sinensis and provide a reference for resource restoration, habitat construction, and restoration of E. sinensis.
Article
Environmental Sciences
Yiwen Yang, Qiuran Yu, Cong Zhang, Xiaodan Wang, Long He, Yuxing Huang, Erchao Li, Jianguang Qin, Liqiao Chen
Summary: The study found that thiamethoxam, a neonicotinoid insecticide, can be toxic to crustaceans, leading to hepatotoxicity and neurotoxic effects. The toxicity is related to the activation of antioxidant and detoxification systems, regulation of immune-related gene expression, and potential inflammatory response. High concentrations of thiamethoxam also cause decreased acetylcholinesterase activity and downregulation of synaptic transmission-related genes, affecting neurotoxicity in crustaceans.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Fisheries
Huan Liu, Lei Guo, Weiwei Zhang, Jiahui Peng, Qinna Chen, Fang Cao, Zhaohui Zhang, Mingshen Guo, Han Zhang, Shumei Mu, Xianjiang Kang
Summary: Differential gene and protein expression in spermatozoa of precocious E. sinensis suggest metabolic disorders as main reason for miniaturization of spermatogenic cells, shedding light on hidden biological irregularities associated with precocious phenotypes.
AQUACULTURE REPORTS
(2022)
Article
Microbiology
Chenxi Shao, Wenqian Zhao, Nannan Li, Yinkang Li, Huiming Zhang, Jingjing Li, Zhiqiang Xu, Jianjun Wang, Tianheng Gao
Summary: This study tracked the succession of gut microbiota in Chinese mitten crabs during their migration from seawater to freshwater. It found that salinity was a major factor affecting the microbiota diversity and community dissimilarity during this transition. The study also revealed that host selection played a dominant role in shaping the microbiota during the freshwater stage. Additionally, the study showed changes in microbial co-occurrence networks and metabolic pathways during the migration process.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Fisheries
Qingqing Li, Qiufeng Sun, Qing Liu, Yongxu Cheng, Xugan Wu
Summary: The study found that the heritabilities of carotenoids in the carapace, hepatopancreas, and ovaries of female Eriocheir sinensis are very low, indicating that carotenoid traits may not be effective targets in selective breeding programs.
Article
Fisheries
Xiaona Zhang, Yuehong Zhao, Xiaoli Zhang, Guoqing Shen, Weiwei Li, Qun Wang
Summary: CYLD is a tumor suppressor protein that regulates the immune response to bacterial infection in crustaceans.
FISH & SHELLFISH IMMUNOLOGY
(2023)
Article
Fisheries
Haipeng Cao, Shumeng Zhang, Jian An, Jing Diao, La Xu, Chunlei Gai
Summary: This study revealed the protective effects of Rhodobacter probiotics, specifically R. azotoformans, against citrobacteriosis in Chinese mitten crab. The supplementation of R. azotoformans significantly improved growth performance, serum immunity, hepatopancreatic antioxidant status, intestinal microbial abundance and diversity in E. sinensis, and enhanced the resistance to C. freundii challenge.
FISH & SHELLFISH IMMUNOLOGY
(2022)