79 results match your criteria: "Beibu Gulf Marine Research Center[Affiliation]"

TroTNFα, a teleost tumour necrosis factor of golden pompano (Trachinotus ovatus), enhances pathogen clearance and acts as an immune adjuvant.

Int J Biol Macromol

January 2025

Sanya Institute of Breeding and Multiplication, School of Marine Biology and Fisheries, Collaborative Innovation Center of Marine Science and Technology, Hainan University, China; Engineering Research Center of Hainan Province for Blue Carbonand Coastal Wetland Conservation and Restoration, China; International Joint Research Center of Hainan Province for Blue Carbon and Coastal Wetland, China. Electronic address:

Tumour necrosis factor (TNF) is one of the most pivotal factors of the TNF family and plays an essential biological role in immunity. However, the antibacterial function and mechanism of TNFα in teleosts are relatively poorly understood. In this study, a novel TNFα from Trachinotus ovatus (TroTNFα) was characterized.

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Construction and analysis of the immune effect of subunit vaccines based on the flagellin FlaB and FlaC of Vibrioharveyi.

Fish Shellfish Immunol

January 2025

Sanya Institute of Breeding and Multiplication, School of Marine Biology and Fisheries, Collaborative Innovation Center of Marine Science and Technology, Hainan University, Hainan, China; Engineering Research Center of Hainan Province for Blue Carbon and Coastal Wetland Conservation·and·Restoration, China; International Joint Research Center of Hainan Province for Blue Carbon and Coastal Wetland, China. Electronic address:

Vibrio harveyi is a common sort of pathogenic bacterium in marine, which annually gives rise to huge financial losses in aquaculture industry. Flagellin is one of the important virulence factors for bacteria, but meanwhile it is also a preferable vaccine candidate. In this study, we have identified and analyzed two flagellin antigens of V.

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Integrated approach for cellulosic ethanol and succinic acid production: Gamma valerolactone-based pretreatment and co-fermentation of peanut shells.

Int J Biol Macromol

December 2024

Institute of Bast Fiber Crops & Center of Southern Economic Crops, Chinese Academy of Agricultural Sciences, Key Laboratory of Biological and Processing for Bast Fiber Crops of Ministry of Agriculture and Rural Affairs, Engineering and Technology Center for Bast Fiber Crops of Hunan Province, Changsha 410205, China. Electronic address:

The inability to utilize pentose poses as a significant limitation to the production of cellulosic ethanol. To attain efficient raw material conversion and mitigate carbon dioxide emissions during cellulosic ethanol synthesis, a integrated approach focused on the co-processing of ethanol and succinic acid (SA) from peanut shells was proposed. The results demonstrated that the GVL system, containing 30 % water and catalyzed by dilute sulfuric acid, exhibited remarkable efficiency in pretreatment, boosting glucose yield sixfold relative to the untreated raw material.

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Enhanced chitinase production by Bacillus paralicheniformis GXMU-J23.1: Optimization, genomic insights, and chitin degradation mechanism.

Bioresour Technol

November 2024

Guangxi Key Laboratory for Polysaccharide Materials and Modifications, School of Marine Sciences and Biotechnology, Guangxi Minzu University, No. 158, Daxue Xi Road, Nanning 530008, PR China. Electronic address:

Article Synopsis
  • Millions of tons of shrimp and crab waste generated each year contain chitin, which can be efficiently processed using a newly isolated strain of Bacillus paralicheniformis known as GXMU-J23.1.
  • Genome sequencing of GXMU-J23.1 revealed various enzymes that break down chitin, including chitinase, which showed a significant increase in activity under optimal conditions.
  • The isolated chitinase, Chi23, operates best at 50°C and pH 5.0, transforming chitin into simpler sugars and offering insights for future enzyme enhancements to improve chitin degradation processes.
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Article Synopsis
  • Hydrophiine sea snakes are important marine predators with unclear taxonomic relationships due to their diverse physical traits and limited genetic research.
  • This study presents the first complete mitochondrial genome of Aipysurus sea snakes, revealing a structure that includes 17,228 base pairs and 37 genes.
  • The findings aim to enhance the understanding of species classification and support conservation efforts for these reptiles.
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Antimicrobial mechanisms and antifungal activity of compounds generated by banana rhizosphere Gxun-2 against f. sp. .

Front Microbiol

September 2024

Guangxi Key Laboratory for Polysaccharide Materials and Modifications, School of Marine Sciences and Biotechnology, Guangxi Minzu University, Nanning, China.

Introduction: wilt of banana, also recognized as Panama disease, is caused by the soil-borne fungus f. sp. tropical race 4 (FOC TR4).

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A new strain of T22.7.1 and its functional potential for deacetylation of chitin and chitooligsaccharides.

Front Microbiol

July 2024

Guangxi Key Laboratory for Polysaccharide Materials and Modifications, School of Marine Sciences and Biotechnology, Guangxi Minzu University, Nanning, China.

Introduction: Chitin, abundant in marine environments, presents significant challenges in terms of transformation and utilization. A strain, T22.7.

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A Comparative Transcriptome Analysis Unveils the Mechanisms of Response in Feather Degradation by Gxun-7.

Microorganisms

April 2024

Guangxi Key Laboratory of Polysaccharide Materials and Modification, School of Marine Sciences and Biotechnology, Guangxi Minzu University, Nanning 530000, China.

Microbial degradation of feathers offers potential for bioremediation, yet the microbial response mechanisms warrant additional investigation. In prior work, Gxun-7, which demonstrated robust degradation of feathers at elevated concentrations, was isolated. However, the molecular mechanism of this degradation remains only partially understood.

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UV-ARTP compound mutagenesis breeding improves macrolactins production of Bacillus siamensis and reveals metabolism changes by proteomic.

J Biotechnol

February 2024

Department of Food Science and Engineering, College of Light Industry and Food Engineering, Guangxi University, Nanning, Guangxi 530004, China.

Macrolactins are a type of compound with complex macrolide structure which mainly be obtained through microbiological fermentation now. They have excellent antifungal, antibacterial and antitumor activity. In order to improve macrolactins production, Bacillus siamensis YB304 was used as the research object, and a mutant Mut-K53 with stable genetic characters was selected by UV-ARTP compound mutagenesis.

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Background: Sea cucumbers exhibit a remarkable ability to regenerate damaged or lost tissues and organs, making them an outstanding model system for investigating processes and mechanisms of regeneration. They can also reproduce asexually by transverse fission, whereby the anterior and posterior bodies can regenerate independently. Despite the recent focus on intestinal regeneration, the molecular mechanisms underlying body wall regeneration in sea cucumbers still remain unclear.

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Metabolome and Transcriptome Association Analysis Reveals the Link Between Pigmentation and Nutrition Utilization in the Juveniles of Sea Cucumber Holothuria leucospilota.

Mar Biotechnol (NY)

December 2023

CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology (LMB), South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, People's Republic of China.

The sea cucumber Holothuria leucospilota is an economically and ecologically important tropical species. Following development into juveniles, H. leucospilota undergoes a color change from white to black, involving a pigmentation process for over a period of several months.

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sp. nov., a brown-black pigment producing actinomycete isolated from dry mudflat sand.

Int J Syst Evol Microbiol

September 2023

Guangxi Key Laboratory for Polysaccharide Materials and Modifications, School of Marine Sciences and Biotechnology, Guangxi Minzu University, Nanning 530008, China; No. 158, Daxue Xi Road, Nanning, PR China.

A novel Gram-stain-positive, aerobic actinobacterial strain, designated GXMU-J15, was isolated from dry mudflat sand. A polyphasic approach was employed for its taxonomic characterization. The strain developed extensively branched yellowish white to light yellow substrate mycelia and white aerial mycelia, and produced smooth cylindrical spores in a loose straight spore chain on International Project 2-7 agar media.

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Applications of Environmental DNA (eDNA) in Monitoring the Endangered Status and Evaluating the Stock Enhancement Effect of Tropical Sea Cucumber Holothuria Scabra.

Mar Biotechnol (NY)

October 2023

CAS Key Laboratory of Tropical Marine Bio-resources and Ecology (LMB), South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, People's Republic of China.

The tropical sea cucumber Holothuria scabra is naturally found in the Indo-West Pacific. However, due to their commercial value, natural H. scabra populations have declined significantly in recent years, resulting in its status as an endangered species.

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A series of Ni(II) sandwich-like coordinated compounds were synthesized by the reaction of nickel dichloride and ten 4'-(4-substituent phenyl)-2',2':6',2″-terpyridine ligands, and their structures were confirmed by elemental analysis, FT-IR, ESI-MS, solid state ultraviolet spectroscopy and X-ray single crystal diffraction analysis. Three human cancer cell lines and a normal human cell line were used for anti-proliferation potential study: human lung cancer cell line (A549), human esophageal cancer cell line (Eca-109), human liver cancer cells (Bel-7402) and normal human liver cells (HL-7702). The results show that these nickel complexes possess good inhibitory effects on the cancer cells, outperforming the commonly used clinical chemotherapy drug cisplatin.

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protein (CAP) is an economical and alternative protein source. Here, three experimental diets were formulated with CAP replacing 0% (CAP-0), 30% (CAP-30), and 60% (CAP-60) of fishmeal to investigate the alterations of structure integrity, fatty acids profiles, and lipid metabolism in the muscle of pearl gentian grouper. With increasing levels of CAP substitution, the percentages of 16 : 0 or 18 : 0 were decreased in triglycerides (TG) and diacylglycerols (DG); 18 : 1 or 18 : 2 was increased at the - and - positions in phosphatidylethanolamines; 20 : 5-3 was increased in TG and DG.

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Anthropogenic activities and environmental filtering have reshaped freshwater fish biodiversity patterns in China over the past 120 years.

J Environ Manage

October 2023

Laboratoire Evolution et Diversité Biologique (EDB), UMR5174, Université Toulouse 3 Paul Sabatier, CNRS, IRD, Toulouse, 31062, France; Institut Universitaire de France, Paris, France.

Over the past centuries, freshwater fish introductions and extinctions have been the major environmental and ecological crises in various water bodies in China. However, consequences of such crises on freshwater fish biodiversity in China remain only partially or locally studied. Furthermore, identifications of relatively sensitive areas along with stressors (i.

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CD69 serves as a potential diagnostic and prognostic biomarker for hepatocellular carcinoma.

Sci Rep

May 2023

Department of Basic Science, YuanDong International Academy of Life Sciences, Hong Kong, 999077, China.

The prevalence and mortality of hepatocellular carcinoma (HCC) are still increasing. This study aimed to identify potential therapeutic targets related to patient prognosis. Data were downloaded from TCGA, GSE25097, GSE36376, and GSE76427 datasets.

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Dextran Sulfate Sodium Salt (DSS) induced enteritis in Orange-spotted grouper, Epinephelus coioides.

Fish Shellfish Immunol

June 2023

Guangdong Provincial Engineering Research Center for Aquatic Animal Health Assessment, Shenzhen Public Service Platform for Evaluation of Marine Economic Animal Seedings, Shenzhen Institute of Guangdong Ocean University, Shenzhen, Guangdong, China; Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, College of Fisheries, Guangdong Ocean University, Zhanjiang, Guangdong, China; Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Beibu Gulf Marine Research Center, Guangxi Academy of Sciences, Nanning, Guangxi, China. Electronic address:

The enteritis is a common disease in fish farming, but the pathogenesis is still not fully understood. The aim of the present study was to investigate the inducement of Dextran Sulfate Sodium Salt (DSS) intestinal inflammation on Orange-spotted grouper (Epinephelus coioides). The fish were challenged with 200 μl 3% DSS via oral irrigation and feeding, an appropriate dose based on the disease activity index of inflammation.

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Synthesis, characterization and anticancer properties: A series of highly selective palladium(II) substituted-terpyridine complexes.

J Inorg Biochem

July 2023

School of Chemistry and Chemical Engineering, Guangxi University, 530004 Nanning, Guangxi, People's Republic of China. Electronic address:

Ten new palladium(II) complexes [PdCl(L)]Cl have been synthesized by the reaction of palladium(II) chloride and ten 4'-(substituted-phenyl)-2,2':6',2''-terpyridine ligands bearing hydrogen(L), p-hydroxyl(L), m-hydroxyl (L), o-hydroxyl (L), methyl (L), phenyl (L), fluoro (L), chloro (L), bromo (L), or iodo (L). Their structures were confirmed by FT-IR, H NMR, elemental analysis and/or single crystal X-ray diffraction analysis. Their in vitro anticancer activities were investigated based on five cell lines, including four cancer cell lines (A549, Eca-109, Bel-7402, MCF-7) and one normal cell line (HL-7702).

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sp. nov., an algicidal bacterium isolated from seawater.

Int J Syst Evol Microbiol

April 2023

Guangxi Key Laboratory of Marine Environmental Science, Beibu Gulf Marine Research Center, Guangxi Academy of Sciences, Nanning 530007, PR China.

A taxonomic study was carried out on strain BGMRC 0090, which was isolated from seawater. The isolate was a Gram-negative, aerobic, flagellated, rod-shaped bacterium with algicidal activity. Optimal growth was observed at 30 °C, pH 6.

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Molecular characterization and expression analysis of B-cell lymphoma-2 in and its role in apoptotic process.

Front Immunol

April 2023

State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, China.

Introduction: B-cell lymphoma-2 (Bcl-2) is the first identified member of the Bcl-2 family that performs an anti-apoptotic function in mammals. However, its role in teleosts is not fully understood. In this study, Bcl-2 of (TroBcl2) was cloned, and its role in apoptosis was investigated.

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Macrolactin R from Bacillus siamensis and its antifungal activity against Botrytis cinerea.

World J Microbiol Biotechnol

March 2023

Department of Food Science and Engineering, College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, Guangxi, P.R. China.

Botrytis cinerea is listed among the most important fungal pathogens infecting strawberries. The use of biological control agents, such as Bacillus species, offers an alternative and effective way to reduce airborne pathogens. The aim of this research was to select the macrolactin R produced by Bacillus siamensis with potential for using as biological agents against the pathogenetic fungi (Botrytis cinerea) of strawberries, and to assess the mechanisms involved.

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sp. nov., an endophytic bacterium isolated from the root of .

Int J Syst Evol Microbiol

February 2023

Life Sciences Institute, Zunyi Medical University, Zunyi 563006, PR China.

A novel endophytic bacterium, designated strain BGMRC 0089, was isolated from a surface-sterilized root of . Cells were observed to be Gram-negative, rod-shaped and motile with polar flagella. Strain BGMRC 0089 was found to grow optimally at 28-30 °C, pH 7.

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Chemically mediated rheotaxis of endangered tri-spine horseshoe crab: potential dispersing mechanism to vegetated nursery habitats along the coast.

PeerJ

January 2023

College of Marine Sciences, Beibu Gulf Ocean Development Research Centre, Guangxi Key Laboratory of Beibu Gulf Biodiversity Conservation, Beibu Gulf University, Qinzhou, Guangxi, China.

Background: An enhanced understanding of larval ecology is fundamental to improve the management of locally depleted horseshoe crab populations in Asia. Recent studies in the northern Beibu Gulf, China demonstrated that nesting sites of Asian horseshoe crabs are typically close to their nursery beaches with high-density juveniles distributed around mangrove, seagrass and other structured habitats.

Methods: A laboratory Y-maze chamber was used to test whether the dispersal of early-stage juvenile tri-spine horseshoe crab is facilitated by chemical cues to approach suitable nursery habitats.

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Efficacy and transcriptome analysis of golden pompano (Trachinotus ovatus) immunized with a formalin-inactived vaccine against Streptococcus iniae.

Fish Shellfish Immunol

March 2023

Guangxi Key Laboratory of Marine Environmental Science, Guangxi Beibu Gulf Marine Research Center, Guangxi Academy of Sciences, Nanning, 530007, China; Beibu Gulf Marine Industry Research Institute, Fangchenggang, 538000, China. Electronic address:

Streptococcus iniae is a worldwide fish pathogen that cause tremendous economic losses to the global aquaculture industry. Vaccination is regarded as the most effective and safe way to control fish diseases. In our study, we developed a formalin-inactivated vaccine against S.

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