Now showing items 1-10 of 95
First report of phenoloxidase and peroxidase activities in two intertidal sea anemone species of Argentina
(University of Modena and Reggio Emilia, 2014-07)
The presence of immune responses within sea anemone species has received little attention, in comparison with coral species, so we decided to investigate the phenoloxidase and peroxidase activities in ectoderm, endoderm ...
Characterization of phenoloxidase activity from spider Polybetes pythagoricus hemocyanin
(Wiley-liss, Div John Wiley & Sons Inc, 2015-10)
Hemocyanin of the spider Polybetes pythagoricus, in addition to its typical role as an oxygen transporter, also exhibits a phenoloxidase activity induced by micellar concentrations of SDS. In the present work, we found the ...
First evidence of a potential antibacterial activity involving a laccase-type enzyme of the phenoloxidase system in Pacific oyster Crassostrea gigas haemocytes
Phenoloxidases (POs) are a group of copper proteins including tyrosinase, catecholase and laccase. In several insects and crustaceans, antibacterial substances are produced through the PO cascade, participating in the ...
Differential tissue distribution and specificity of phenoloxidases from the Pacific oyster Crassostrea gigas
Phenoloxidases (POs) play a key role in melanin production, are involved in invertebrate immune mechanisms, and have been detected in different bivalves. Recently, we identified catecholase- and laccase-like PO activities ...
Phenoloxidase activation in the embryo of the common cuttlefish Sepia officinalis and responses to the Ag and Cu exposure
The prophenoloxidase (proPO) system catalyzing the melanin production is considered as implicated in the innate immune system in invertebrates. The phenoloxidase (PO)-like activity was detected in the cuttlefish embryo ...
Isolation and partial characterization of an extracellular low-molecular mass component with high phenoloxidase activity from Thermoascus aurantiacus
(Academic Press IncSan DiegoEUA, 1999)
Interplay between behavioural thermoregulation and immune response in mealworms
Since the preferential body temperature should positively correlate with physiological performance, behavioural fever should enhance an organism's immune response under an immune challenge. Here we have studied the ...
PHENOLOXIDASES AND HYDROLASES FROM PYCNOPORUS-SANGUINEUS (UEC-2050 STRAIN) - APPLICATIONS
(Elsevier Science BvAmsterdamHolanda, 1993)
Effect of unilateral and bilateral eyestalk ablation in Litopenaeus vannamei male and female on several metabolic and immunologic variables
Eyestalk ablation is the most common procedure to induce gonadic maturation in commercial hatcheries of penaeid shrimp. In addition to reproduction, other physiological and metabolic processes are affected by removal of ...