scholarly journals Experimental study of cadmium bioaccumulation in three Mediterranean marine bivalve species: correlation with selected biomarkers

2014 ◽  
Vol 86 (7) ◽  
pp. 1189-1204 ◽  
Author(s):  
Olga Chalkiadaki ◽  
Manos Dassenakis ◽  
Vasiliki Paraskevopoulou ◽  
Nikos Lydakis-Simantiris
Keyword(s):  
Digestive System ◽  
Mytilus Galloprovincialis ◽  
Marine Bivalve ◽  
Bivalve Species ◽  
Animal Tissues ◽  
Marine Area ◽  
Cadmium Bioaccumulation ◽  
Of Greece ◽  
Ecotoxicological Study ◽  
Different Parts

AbstractAn ecotoxicological study is presented, in which three marine bivalve species (Mytilus galloprovincialis, Callista chione, and Venus verrucosa) living in different habitats were studied for Cd bioaccumulation, under laboratory conditions. The bivalves, originating from a relatively polluted marine area of Greece (Saronicos Gulf), were exposed to 0.5 mg Cd L–1 seawater (4.4 μmol Cd L–1 seawater) for 5, 10, 15, and 20 days. Control animals were kept in metal-free seawater as well. Three or four different parts of the organisms (gills, mantle, body, digestive system) were examined for the bioaccumulation of Cd, as well as the levels of three biomarkers (metallothioneins, acetylcholinesterase, lipid peroxidation). A depuration experiment was also carried out. During the experiment, the initial levels of Cd in the control animal tissues either decreased or remained constant and low. The organisms exhibited different behavior regarding Cd bioconcentration and biomarker responses as well as tissue distribution of Cd. After the depuration period, significant amounts of Cd remained in the organisms’ tissues, much higher than the respective levels in control animals.

Interactive effects of n-TiO2 and 2,3,7,8-TCDD on the marine bivalve Mytilus galloprovincialis

2014 ◽  
Vol 153 ◽  
pp. 53-65 ◽  
Author(s):  
Laura Canesi ◽  
Giada Frenzilli ◽  
Teresa Balbi ◽  
Margherita Bernardeschi ◽  
Caterina Ciacci ◽  
...  
Keyword(s):  
Mytilus Galloprovincialis ◽  
Interactive Effects ◽  
Marine Bivalve

scholarly journals A New Portion of the Edict of Diocletian from Megalopolis

1890 ◽  
Vol 11 ◽  
pp. 299-342
Author(s):  
William Loring
Keyword(s):  
Asia Minor ◽  
British School ◽  
Greek Government ◽  
Ancient Site ◽  
Formed Part ◽  
Of Greece ◽  
Different Parts

The inscription which follows came to light during the excavation undertaken this year, at Megalopolis, by the British School at Athens. It stood outside the house of a peasant, Βασίλєιος Πєτράκης, whose father had found it, many years previously, in a field upon the ancient site. The existence of the stone was reported first to the Ephor, Mr. Castroménos, who represented the Greek Government at our excavation. Mr. Castroménos courteously announced it to me, and both of us copied it. At that time we had no idea that it formed part of the ‘Edict of Diocletian’; this was first suggested to me by Mr. Gardner, Director of the School, on my return to Cambridge. Mr. Castroménos' copy is to appear, as I understand, in the ‘Δєλτίον.’ The text and edition which follow are from my own copy and squeeze.The Edict of Diocletian and his colleagues, commonly spoken of either by Mommsen's title ‘De Pretiis Rerum Venalium’ or more briefly as the ‘Edict of Diocletian,’ is known to us already from a large number of fragments, Greek and Latin, found all (with one exception) in different parts of Greece or Asia Minor, and amounting together to many hundred lines. It is still however far from being complete.

scholarly journals Immunomodulation by Different Types of N-Oxides in the Hemocytes of the Marine Bivalve Mytilus galloprovincialis

PLoS ONE ◽  
2012 ◽  
Vol 7 (5) ◽  
pp. e36937 ◽  
Author(s):  
Caterina Ciacci ◽  
Barbara Canonico ◽  
Dagmar Bilaniĉovă ◽  
Rita Fabbri ◽  
Katia Cortese ◽  
...  
Keyword(s):  
Mytilus Galloprovincialis ◽  
Marine Bivalve ◽  
Different Types

scholarly journals Hydrolytic enzymes expressivity in different parts of the Rapana digestive system

2016 ◽  
Vol 88 (3) ◽  
pp. 5-17 ◽  
Author(s):  
Toptikov V.A ◽  
◽  
Totsky V.N. ◽  
Alieksieieva T.G. ◽  
Kovtun O.A. ◽  
...  
Keyword(s):  
Digestive System ◽  
Hydrolytic Enzymes ◽  
Different Parts

Immunotoxicity of PFOA to the Marine Bivalve Species Ruditapes philippinarum

2021 ◽  
Author(s):  
Fengling Li ◽  
Zhiyu Liu ◽  
Lin Yao ◽  
Yanhua Jiang ◽  
Meng Qu ◽  
...  
Keyword(s):  
Ruditapes Philippinarum ◽  
Marine Bivalve ◽  
Bivalve Species

The development of the digestive system of the young animal III. Carbohydrase enzyme development in the young lamb

1959 ◽  
Vol 53 (3) ◽  
pp. 374-380 ◽  
Author(s):  
D. M. Walker
Keyword(s):  
Small Intestine ◽  
Enzyme Activities ◽  
Digestive System ◽  
Young Animal ◽  
Age Groups ◽  
Total Acidity ◽  
Sucrase Activity ◽  
Young Pigs ◽  
Enzyme Development ◽  
Different Parts

1. Twelve lambs varying in age from 5 to 35 days in age were slaughtered and their carbohydrate-digesting enzymes studied for any change in activity with increase in age.2. Results are given for the changes in weight of different parts of the digestive organs and their contents, and for the content of NaCl and of total acidity in the abomasum contents.3. Pancreatic and small intestine amylase showed only a slight increase in activity up to 5 weeks of age.4. Lactase and maltase activity in the small intestine were almost constant from 1 week to 5 weeks of age.5. No sucrase activity was measurable in any of the lambs slaughtered in either the small intestine wall or its contents.6. A comparison was made between the carbohydrase activity of the young pig and the lamb.7. Calculations based on the enzyme activities of the tissues showed the theoretical amounts of different carbohydrates which can be digested by lambs and young pigs of varying age groups.8. The results suggest that the young lamb is dependent on the early development of its rumen fauna and flora for the utilization of all other carbohydrates except lactose and glucose.

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