Acute and chronic exposure of Dunaliella salina and Chlamydomonas bullosa to copper and cadmium: effects on ultrastructure
The ultrastructural changes of Dunaliella salina and Chlamydomonas bullosa taking place after short term exposure to established copper and/or cadmium EC(50) or exposure to low levels of these cations for 8 months were examined. Cadmium had a greater impact on the ultrastructure of these species tha...
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| Veröffentlicht in: | Archives of environmental contamination and toxicology 1994-02, Vol.26 (2), p.154-162 |
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| creator | Visviki, I Rachlin, J.W |
| description | The ultrastructural changes of Dunaliella salina and Chlamydomonas bullosa taking place after short term exposure to established copper and/or cadmium EC(50) or exposure to low levels of these cations for 8 months were examined. Cadmium had a greater impact on the ultrastructure of these species than copper. Metal stress affected a variety of cellular parameters including total cell volume, pyrenoid, nucleus, starch granules, polyphosphate bodies, lipids, vacuoles, cell wall, and periplasmalemmal space. The measurements of these cellular parameters used the technique of electron microscopic stereoscopic morphometry. Differences resulting from acute vs. chronic exposure to the cations are documented. |
| doi_str_mv | 10.1007/bf00224799 |
| format | Article |
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Cadmium had a greater impact on the ultrastructure of these species than copper. Metal stress affected a variety of cellular parameters including total cell volume, pyrenoid, nucleus, starch granules, polyphosphate bodies, lipids, vacuoles, cell wall, and periplasmalemmal space. The measurements of these cellular parameters used the technique of electron microscopic stereoscopic morphometry. 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Cadmium had a greater impact on the ultrastructure of these species than copper. Metal stress affected a variety of cellular parameters including total cell volume, pyrenoid, nucleus, starch granules, polyphosphate bodies, lipids, vacuoles, cell wall, and periplasmalemmal space. The measurements of these cellular parameters used the technique of electron microscopic stereoscopic morphometry. Differences resulting from acute vs. chronic exposure to the cations are documented.</description><subject>Animal, plant and microbial ecology</subject><subject>Animals</subject><subject>Applied ecology</subject><subject>Biological and medical sciences</subject><subject>CADMIO</subject><subject>CADMIUM</subject><subject>Cadmium - toxicity</subject><subject>Cell Wall - drug effects</subject><subject>Chlamydomonas - drug effects</subject><subject>Chlamydomonas - ultrastructure</subject><subject>Chlamydomonas bullosa</subject><subject>CHLOROPHYCEAE</subject><subject>Chloroplasts - drug effects</subject><subject>COBRE</subject><subject>COPPER</subject><subject>Copper - toxicity</subject><subject>CUIVRE</subject><subject>Dose-Response Relationship, Drug</subject><subject>Dunaliella salina</subject><subject>Ecotoxicology, biological effects of pollution</subject><subject>Effects of pollution and side effects of pesticides on plants and fungi</subject><subject>Eukaryota - drug effects</subject><subject>FITOTOXICIDAD</subject><subject>Fundamental and applied biological sciences. 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| issn | 0090-4341 1432-0703 |
| language | eng |
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| subjects | Animal, plant and microbial ecology Animals Applied ecology Biological and medical sciences CADMIO CADMIUM Cadmium - toxicity Cell Wall - drug effects Chlamydomonas - drug effects Chlamydomonas - ultrastructure Chlamydomonas bullosa CHLOROPHYCEAE Chloroplasts - drug effects COBRE COPPER Copper - toxicity CUIVRE Dose-Response Relationship, Drug Dunaliella salina Ecotoxicology, biological effects of pollution Effects of pollution and side effects of pesticides on plants and fungi Eukaryota - drug effects FITOTOXICIDAD Fundamental and applied biological sciences. Psychology Marine PHYTOTOXICITE PHYTOTOXICITY RESPONSES |
| title | Acute and chronic exposure of Dunaliella salina and Chlamydomonas bullosa to copper and cadmium: effects on ultrastructure |
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