Response of the Litopenaeus vananmei intestinal bacteria and antioxidant system to rearing density and exposure to Vibrio paraheamolyticus E1.

07:00 EST 11th January 2020 | BioPortfolio

Summary of "Response of the Litopenaeus vananmei intestinal bacteria and antioxidant system to rearing density and exposure to Vibrio paraheamolyticus E1."

Intestinal bacteria and bacterial metabolic products are indispensable components of both invertebrate and vertebrate physiology, directly influencing many functions including host energy absorption and metabolism, intestinal barrier integrity and immune function. To investigate the influence of rearing density on shrimp intestinal health, antioxidant responses and disease susceptibility, we simultaneously monitored the dynamic changes of intestinal bacteria and antioxidant enzymes activities in Litopenaeus vananmei under two different rearing densities (400 and 800 shrimp/m) and further investigated the difference in response to Vibrio paraheamolyticus E1 (VPE1) challenge. We showed that the phyla Proteobacteria, Bacteroidetes, Planctomycetes and Firmicutes were the predominant microflora in all treatment groups. Rearing L. vannamei at high density for 15 days resulted in the reduction of Bacteroidetes and Firmicutes and increase of Planctomycetes. At the genus level, high rearing density induced reduction of Pseudoalteromonas and Blastopirellula, and an increase of Photobacterium and Vibrio. Notably, the relative abundance of Ascidiaceihabitans and Flavobacteria NS10_marine_group increased in the low rearing density groups after VPE1 challenge, suggesting that these two types of bacteria might have an important role in resisting to VPE1 infection. High density stress caused suppression of total superoxide dismutase (T-SOD), catalase (CAT), and glutathione peroxidase (GPX) activities in shrimp. Hence, high density stress altered the functional composition of shrimp intestinal bacteria and damaged the antioxidant system, which increased pathogen susceptibility.


Journal Details

This article was published in the following journal.

Name: Journal of invertebrate pathology
ISSN: 1096-0805
Pages: 107326


DeepDyve research library

PubMed Articles [22403 Associated PubMed Articles listed on BioPortfolio]

The effect of rearing density on immune responses of hepatopancreas and intestine in Litopenaeus vananmei against Vibrio paraheamolyticus E1 challenge.

Rearing density and disease management are considered as pivotal factors determining shrimp farm productivity and profitability. To systematically investigate the potential mechanisms for density-rela...

Individual and combined effects of ammonia-N and sulfide on the immune function and intestinal microbiota of pacific white shrimp Litopenaeus vannamei.

In this study, we explored the individual and combined effects of ammonia-N and sulfide stress (1 mg/L sulfide and 15 mg/L ammonia-N) on the oxidation resistance, immune response and intestinal he...

RNA-seq revealed the signatures of immunity and metabolism in the Litopenaeus vannamei intestine in response to dietary succinate.

The intestine is important for nutrition, metabolism and immunity. Succinate (SA) plays a vital role in the physiological homeostasis of animal intestines. However, the effects of dietary SA on the in...

Virome-host interactions in intestinal health and disease.

The enteric virome consists largely of bacteriophages and prophages related to commensal bacteria. Bacteriophages indirectly affect the host immune system by targeting their associated bacteria; howev...

Intestinal bacterial signatures of the "cotton shrimp-like" disease explain the change of growth performance and immune responses in Pacific white shrimp (Litopenaeus vannamei).

Imbalance of intestinal microbiota has been recognized in aquatic animals infected with various diseases. However, the signature of intestinal bacteria of the "cotton shrimp-like" disease in the Pacif...

Clinical Trials [10263 Associated Clinical Trials listed on BioPortfolio]

The Effect of Diet on Disease Activity and Symptoms in Patients With Ulcerative Colitis

The Mediterranean Diet Pattern (MDP) has been shown to have beneficial effects on the intestinal bacteria and the immune system in diseases like cancer and diabetes. The aim of this study ...

Glutamine and Intestinal Protein Metabolism

Gut barrier plays a major role in defence of the organism. During catabolic states, like major surgery or inflammation, gut barrier could be altered. It has been reported that preoperative...

Choosing the Best Antibiotic to Protect Friendly Gut Bacteria During the Course of Stem Cell Transplant

The purpose of this study is to see how different antibiotics affect the community of friendly bacteria existing in the intestinal tract (gut). Under normal circumstances, these friendly b...

Type 2 Diabetes and Alteration of Immune System of Intestinal Mucosa : Proof of Concept

Type 2 diabetes is the predominant type of diabetes. Because a quiet evolution, it is difficult to have a rapid diagnose. A better knowledge about pathophysiological mechanisms at the orig...

The Role of Intestinal Inflammation in Irritable Bowel Syndrome (IBS)

The research project addresses the following hypotheses (A) the normal balance of beneficial and detrimental commensal intestinal bacteria is deranged in IBS, with selective alterations in...

Medical and Biotech [MESH] Definitions

Performing the role of a parent by care-giving, nurturance, and protection of the child by a natural or substitute parent. The parent supports the child by exercising authority and through consistent, empathic, appropriate behavior in response to the child's needs. PARENTING differs from CHILD REARING in that in child rearing the emphasis is on the act of training or bringing up the children and the interaction between the parent and child, while parenting emphasizes the responsibility and qualities of exemplary behavior of the parent.

The training or bringing-up of children by parents or parent-substitutes. It is used also for child rearing practices in different societies, at different economic levels, in different ethnic groups, etc. It differs from PARENTING in that in child rearing the emphasis is on the act of training or bringing up the child and the interaction between the parent and child, while parenting emphasizes the responsibility and qualities of exemplary behavior of the parent.

Nucleotide sequences that are found in the PROMOTER REGIONS of the genes of stress-responsive and cytoprotective proteins, such as those encoding antioxidant and PHASE II DETOXIFICATION enzymes. NF-E2-RELATED FACTOR 2 containing transcription factors bind to these elements during induction of these genes.

Dilatation of the intestinal lymphatic system usually caused by an obstruction in the intestinal wall. It may be congenital or acquired and is characterized by DIARRHEA; HYPOPROTEINEMIA; peripheral and/or abdominal EDEMA; and PROTEIN-LOSING ENTEROPATHIES.

The passage of viable bacteria from the gastrointestinal tract to extra-intestinal sites, such as the mesenteric lymph node complex, liver, spleen, kidney, and blood. Factors that promote bacterial translocation include overgrowth with gram-negative enteric bacilli, impaired host immune defenses, and injury to the intestinal mucosa resulting in increased intestinal permeability. These mechanisms can act in concert to promote synergistically the systemic spread of indigenous translocating bacteria to cause lethal sepsis.

Quick Search

DeepDyve research library

Relevant Topics

Antiretroviral Therapy Clostridium Difficile Ebola HIV & AIDS Infectious Diseases Influenza Malaria Measles Sepsis Swine Flu Tropical Medicine Tuberculosis Infectious diseases are caused by pathogenic...

Stress is caused by your perception of situations around you and then the reaction of your body to them. The automatic stress response to unexpected events is known as 'fight or flight'. Discovered by Walter Cannon in 1932, it is the release of h...

Searches Linking to this Article