Article
Food Science & Technology
Lin Teng, Geng Zou, Yang Zhou, Jie Li, Zhiyong Song, Xingxing Dong, Zhengxin Ma, Zhijie Zheng, Huanchun Chen, Jinquan Li
Summary: Vibrio parahaemolyticus is a common foodborne pathogen primarily found in seafood, but recent research has discovered its presence in freshwater crayfish as well. The strain isolated from freshwater crayfish showed higher pathogenicity and lacked known virulence marker genes compared to clinical strains. This strain also displayed multidrug resistance. The study highlights the potential transmission of hypervirulent V. parahaemolyticus through freshwater food products and suggests the use of a phage cocktail as a promising method for control.
FOOD RESEARCH INTERNATIONAL
(2022)
Article
Microbiology
Angelica Gutierrez-Sanchez, Javier Plasencia, Juan L. Monribot-Villanueva, Benjamin Rodriguez-Haas, Eliel Ruiz-May, Jose A. Guerrero-Analco, Diana Sanchez-Rangel
Summary: This review analyzes the current research status of Fusarium VF, focusing on their biological targets on plant hosts. The article points out that the mechanisms and contributions of these VF to the infection process are still unknown, and proposes relevant research questions that need to be further studied.
MICROBIOLOGICAL RESEARCH
(2023)
Article
Food Science & Technology
E. Liao, Yuxin Wu, Yang Pan, Ying Zhang, Peng Zhang, Jiwang Chen
Summary: This study evaluated the effects of carrageenan oligosaccharides (CRGO) on crayfish quality deterioration and protein hydrolysis during superchilling. The results showed that CRGO treatment significantly delayed quality deterioration and suppressed protein structural changes. Overall, CRGO has the potential to maintain better quality and stable protein structure during the superchilling process.
Article
Microbiology
Arturo Casadevall
Summary: The concept of pathogenic potential suggests that all microorganisms have pathogenic potential that can be calculated using an equation. By introducing a new parameter, fulminancy, this concept also considers the role of time in virulence.
Article
Microbiology
Arturo Casadevall
Summary: The pathogenic potential (PP) concept suggests that all microorganisms have some degree of potential to cause disease, which can be determined through calculations involving symptomatic cases, inoculum, and mortality rates. This concept moves away from classifying microorganisms as pathogens, nonpathogens, etc., and instead provides an alternative approach that considers the contributions of both the host and the microorganism. Additionally, the concept introduces the concept of fulminancy, a measure of the speed of the pathogenic process, to incorporate the role of time in virulence.
Article
Fisheries
Long Huang, Yu Liu, Xinxin Zhang, Jie Xu, Lu Dai, Lishang Dai, Lehao Huang
Summary: In this study, the cDNA of PcPrx-1 was cloned from Procambarus clarkii and its role in immune system functions against microbial pathogens was investigated. It was found that PcPrx-1 was ubiquitously expressed in all tissues, with highest expression in the hepatopancreas. The gene transcripts of PcPrx-1 were significantly upregulated after exposure to LPS, PGN, and Poly I:C, but the transcription patterns varied after pathogen challenge. Knockdown of PcPrx-1 resulted in a dramatic change in the expression of immune-associated genes in P. clarkii.
FISH & SHELLFISH IMMUNOLOGY
(2023)
Article
Environmental Sciences
Rong Han, Aman Khan, Zhenmin Ling, Ying Wu, Pengya Feng, Tuoyu Zhou, El-Sayed Salama, Marwa M. El-Dalatony, Xirong Tian, Pu Liu, Xiangkai Li
Summary: In this study, Limosilactobacillus fermentum GR-3 strain isolated from water was found to have high adsorption capacity for Arsenic (As) and strong antioxidant abilities. When added to crayfish feed, the strain effectively reduced the concentration of As(III) and restored gut microbiota dysbiosis caused by As(III) exposure. The application of this strain in aquaculture also resulted in a decrease in As(III) accumulation and increased production.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2022)
Article
Engineering, Marine
Zhaohai Cheng, Margaret H. Folkins, Liuyi Huang, Ye Li
Summary: This research evaluated and compared the capture efficiency of crayfish using traps with different numbers of entrances. The results showed that the number of entrances did not significantly affect the catch per unit effort (CPUE), but did significantly affect the CPUE by weight. Six-entrance traps were more efficient than five-entrance traps, and the number of entrances did not significantly affect the size of the captured crayfish.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Fisheries
Yanlong Gu, Lei Zhu, Xinru Wang, Hao Li, Libo Hou, Xianghui Kong
Summary: Though a lower invertebrate, Procambarus clarkii has developed a complex innate immune system. Understanding its immune response can help prevent and treat diseases, and boost the economic benefits of the crayfish farming industry.
FISH & SHELLFISH IMMUNOLOGY
(2023)
Article
Fisheries
Xin Ren, Guohui Peng, Haoyue Zhang, Bo Peng, Xufeng Bai
Summary: Sexual size dimorphism is common in aquatic animals. A study on red swamp crayfish revealed that females have stronger disease resistance compared to males, as shown through differences in mortality rates, intestinal damage, apoptosis rates, melanism concentration, and reactive oxygen species in hemocytes. Female crayfish also exhibit more favorable immune gene expression patterns for disease resistance, suggesting that mono-sex breeding (all female crayfish) could be an important strategy for crayfish breeding.
Article
Agronomy
Hongyuan Zhu, Xianjun Guan, Lei Pu, Liyang Shen, Hongxia Hua
Summary: This study evaluated the toxicity of avermectins to crayfish and its potential effects on the biochemical and transcriptomic status of the hepatopancreas and gastrointestinal tract. The results showed that avermectins induced acute toxicity, oxidative stress, and disturbed osmoregulation and neurotoxicity in crayfish.
PEST MANAGEMENT SCIENCE
(2023)
Article
Fisheries
Juan Tian, Wenfu Xiao, Weihua Gao, Jianmin Zhang, Liangzi Xu, Mingzhu Li, Hongwei Liang, Ningning Xie, Lixue Dong, Jie Li
Summary: The study investigated the dietary cholesterol requirements of large red swamp crayfish and found that there is an optimal level of cholesterol intake for their growth and metabolism.
AQUACULTURE NUTRITION
(2023)
Article
Fisheries
Duanduan Chen, Leifeng Guo, Chen Wang, Hongzhen Cao, Wei Mo, Yunteng Xin, Yongqing Zeng, Hui Wang
Summary: This study investigates the cause of stunting in red swamp crayfish and suggests that the microbiota in the crayfish gut may play a role in promoting rapid growth by regulating the expression of metabolic genes.
AQUACULTURE REPORTS
(2022)
Article
Environmental Sciences
Ke He, Ethan Hain, Anne Timm, Lee Blaney
Summary: This study investigated the accumulation of estrogenic hormones and UV-filters in red swamp crayfish, finding that UV-filters had higher concentrations than estrogenic hormones in crayfish tail tissue after exposure to environmentally relevant concentrations. The EDC concentrations in the crayfish tail tissue remained relatively stable throughout the exposure period.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Food Science & Technology
Yun Xia, Lijuan Jia, Kai Zhang, Jun Xie, Ermeng Yu, Jingjing Tian, Wangbao Gong, Zhifei Li, Hongyan Li, Guangjun Wang, Yarong Liu
Summary: This study explores the use of mineral elements and stable isotopes to trace the origin of Procambarus clarkii and establishes an origin tracing system. The results show that the combination of stable isotopes and mineral elements can effectively distinguish samples from different regions.
Article
Construction & Building Technology
Ismail R. Abdel-Rahim, Nivien A. Nafady, Magdy M. K. Bagy, Mohamed H. Abd-Alla, Ahmad M. Abd-Alkader
INDOOR AND BUILT ENVIRONMENT
(2019)
Article
Microbiology
Ismail R. Abdel-Rahim, Kamal A. M. Abo-Elyousr
MICROBIOLOGICAL RESEARCH
(2018)
Article
Biochemical Research Methods
Alamira Marzouk Fouad, Hatem Soliman, Ebtsam S. H. Abdallah, Sherif Ibrahim, Mansour El-Matbouli, Ahmad A. Elkamel
JOURNAL OF VIROLOGICAL METHODS
(2019)
Article
Agriculture, Dairy & Animal Science
Mohsen M. Farghaly, Mahmoud A. M. Abdullah, Ibrahim M. I. Youssef, Ismail R. Abdel-Rahim, Khaled Abouelezz
Article
Anatomy & Morphology
Alkhateib Y. Gaafar, Ebtsam Sayed Hassan Abdullah, Mahmoud Mostafa Mahmoud, Abdelgayed M. Younes, Toshihiro Nakai
Summary: In recent years, mass mortalities in riverine ayu in Japan have been linked to the causative agent Edwardsiella ictaluri. Experimental infection of ayu revealed severe congestion in blood vessels, degenerative and necrotic changes, and positive antigenic staining, providing insights into the pathogenesis of the disease.
MICROSCOPY RESEARCH AND TECHNIQUE
(2021)
Article
Microbiology
Kamal A. M. Abo-Elyousr, Ismail R. Abdel-Rahim, Najeeb M. Almasoudi, Sameera A. Alghamdi
Summary: This study found that the endophytic bacterium Pseudomonas putida ASU15 has the potential to suppress Uromyces appendiculatus rust disease by directly inhibiting pathogen spores germination, leading to a reduction in disease severity.
Article
Fisheries
Hasnaa Thabit, Ebtsam Sayed Hassan Abdallah
Summary: This study identified Contracaecum nematodes as third-stage larvae in Nile perch collected from the Nile River in Egypt. The larvae were found in various locations within the fish's body and showed no correlation with the fish's weight and length. The study employed microscopy and genetic sequencing to describe and confirm the larvae as Contracaecum quadripapillatum.
AQUACULTURE RESEARCH
(2022)
Article
Agronomy
Muhammad Imran, Kamal A. M. Abo-Elyousr, Mohamed E. El-Sharnouby, Esmat F. Ali, Nashwa M. A. Sallam, Hadeel M. M. Khalil Bagy, Ismail R. Abdel-Rahim
Summary: The Trichoderma harzianum isolate Tr-3 and zinc nanoparticles (ZnO-NPs) were found to have significant biocontrol efficacy against Botrytis cinerea, making them potential alternatives to fungicides for controlling gray mold disease in tomatoes.
Article
Marine & Freshwater Biology
Ebtsam Sayed Hassan Abdallah, Awatef Hamed Hamouda
Summary: The European seabass, a commercially farmed fish in Europe and the most farmed fish in the Mediterranean, is susceptible to copepod infestation, with Lernanthropus kroyeri being a common parasite. In this study, gill filaments of the seabass were found to be infested with L. kroyeri parasites with a prevalence rate of 23%. The parasites were identified and their morphological traits were examined using scanning electron microscopy.
EGYPTIAN JOURNAL OF AQUATIC RESEARCH
(2023)
Article
Fisheries
Alamira Marzouk Fouad, Ahmad A. Elkamel, Sherif Ibrahim, Mansour El-Matbouli, Hatem Soliman, Ebtsam Sayed Hassan Abdallah
Summary: This study investigated the control of the Carp sprivivirus replication in cells and in common carp by targeting specific genes using RNA interference technology. The results showed that certain siRNAs effectively reduced the virus titer both in vitro and in vivo. In particular, the siRNA-M-271 + L-602 combination significantly reduced the mortality rate in common carp challenged with SVCV.
Article
Veterinary Sciences
Ebtsam Sayed Hassan Abdallah, Awatef Hamed Hamouda
Summary: This study assessed the prevalence, morphology, and molecular characteristics of isopodiosis in the European seabass in Egypt. The parasites were mainly found in the branchial cavity and caused destructive damage to the gill lamellae. DNA sequencing confirmed the identification of the parasite, which showed distinct differences from other isopod genospecies. The study highlights the clinical and histopathological effects of this parasite on infected fish.
BMC VETERINARY RESEARCH
(2022)
Article
Plant Sciences
Kamal A. M. Abo-Elyousr, Nashwa M. A. Sallam, Magdy A. A. Mousa, Muhammad Imran, Ismail R. Abdel-Rahim
Summary: This study investigated the efficacy of benzothiadiazole (Bion(R)) and indigenous rhizobacteria as potential biocontrol agents for managing Fusarium wilt disease of pepper. The results showed that the combined application of Bion(R) and Bacillus subtilis significantly reduced the disease severity and increased the germination rate of pepper seeds. Furthermore, these treatments increased the total phenol contents in treated plants.
JOURNAL OF PLANT PATHOLOGY
(2023)
Article
Plant Sciences
Kamal A. M. Abo-Elyousr, Muhammad Imran, Najeeb M. Almasoudi, Esmat F. Ali, Sabry Hassan, Nashwa M. A. Sallam, Khamis Youssef, Ismail R. Abdel-Rahim, Hadeel M. M. Khalil Bagy
Summary: This study investigates the potential use of salicylic acid (SA) and benzoic acid (BA) for controlling the common blight of beans caused by Xanthomonas axonopodis pv. phaseoli (Xap). The application of SA and BA significantly suppressed the growth of the pathogen, reduced disease development, and induced resistance and defense enzymes in the treated bean plants. SA-treated plants showed higher salicylic acid and phenolic content, while BA-treated plants showed higher catalase activity.
JOURNAL OF PLANT PATHOLOGY
(2022)