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An experiment was conducted for 60 days in a 500L capacity FRP tank containing inland ground saline water (fortified to a level of 50% potassium) with one control (sediment) and three treatments; T1(Paddy Straw Biochar (PSB) in sediment), T2 (Banana Peduncle Biochar (BPB) in sediment), and T3 (PSB + BPB in sediment). Biochar (100 g) was amended with sediment (25 kg) at 9 tons/ha. Shrimps of average weight 5 ± 0.
View Article and Find Full Text PDFHaematological deterioration of Hematodinium-infected decapod crustaceans.
Dev Comp Immunol
December 2024
Zoology and Ryan Institute, School of Natural Sciences, University of Galway, Galway, H91 TK33, Ireland. Electronic address:
Parasitic dinoflagellates, namely Hematodinium spp., infect a growing number of decapod crustacean species worldwide. These parasites represent a longstanding concern for fisheries in Europe and North America, and an emerging concern for aqua/polyculture systems in Asia.
View Article and Find Full Text PDFEffects of elevated CO on the critical oxygen tension (P) and aerobic metabolism of two oxygen minimum zone (OMZ) hypoxia tolerant squat lobster species.
Sci Total Environ
December 2024
Departamento de Zoología, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Chile; Instituto Milenio de Oceanografía (IMO), Universidad de Concepción, PO Box 1313, Concepción, Chile. Electronic address:
Marine invertebrates living in oxygen minimum zones (OMZ), where low pO and high pCO conditions co-occur, display physiological mechanisms allowing them to deal with these coupled stressors. We measured aerobic metabolic rate (MR) and the critical oxygen tension (P), and calculated the oxygen supply capacity (α) of both the red (Grimothea monodon) and yellow (Grimothea johni) squat lobsters, under two pCO scenarios (~414 and 1400 μatm). We also measured haemolymph pH, haemocyanin oxygen binding affinity (p), and haemolymph lactate content in both species under normoxia, low pCO hypoxia and high pCO hypoxia.
View Article and Find Full Text PDFUbiquitination of Hemocyanin Mediated by a Mitochondrial E3 Ubiquitin Ligase Regulates Immune Response in Penaeus vannamei.
J Immunol
December 2024
Guangdong Provincial Key Laboratory of Marine Biotechnology, Institute of Marine Sciences, Shantou University, Shantou, China.
Ubiquitination is a critical posttranslational modification that regulates host immune responses to pathogens. In this study, we investigated the ubiquitination of hemocyanin (PvHMC [Penaeus vannamei hemocyanin]) mediated by the mitochondrial E3 ubiquitin ligase (PvMulan) in shrimp Penaeus vannamei. We characterized distinct ubiquitination patterns of PvHMC in response to different pathogen challenges, both in vitro and in vivo.
View Article and Find Full Text PDFDecoding the role of HIF-1α in immunoregulation in Litopenaeus vannamei under hypoxic stress.
Fish Shellfish Immunol
November 2024
School of Life and Health Sciences, Hainan University, Haikou, 570228, China; One Health Institute, Hainan University, Haikou, Hainan, 570228, China; State Key Laboratory of South China Sea Marine Resource Utilization, Hainan University, Haikou, 570228, China. Electronic address:
Hypoxia poses a significant challenge to aquatic organisms, especially Litopenaeus vannamei (L. vannamei), which play a vital role in the global aquaculture industry. Hypoxia-inducible factor 1α (HIF-1α) is a pivotal regulator of the organism's adaptation to hypoxic conditions.
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