Modifications to a defined medium for the study of the biology and toxicology of the earthworm Eisenia fetida (Oligochaeta)
Defined and standardised media for the investigation of growth and reproduction of earthworms from a juvenile stage have been developed, but still retain a measure of components that are difficult to characterise completely. A defined medium, based on vermiculate, cellulose, humic acid and other com...
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| Veröffentlicht in: | Applied soil ecology : a section of Agriculture, ecosystems & environment ecosystems & environment, 2007-03, Vol.35 (3), p.566-581 |
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| creator | Bouwman, Henk |
| description | Defined and standardised media for the investigation of growth and reproduction of earthworms from a juvenile stage have been developed, but still retain a measure of components that are difficult to characterise completely. A defined medium, based on vermiculate, cellulose, humic acid and other components that are commercially available, and that supports growth and reproduction of
E. fetida, added as juveniles, has previously been developed. However, one of the nutrients is not available anymore, and modifications were required. A series of various combinations were evaluated using commercially available nutrients such as fatty acids, organic phosphates and oxy-humic acids. All of the media supported growth (excepting one containing creatinine), but cocoons were only produced in some. It was shown that the growth and reproduction of
E. fetida could be studied in a defined medium for up to 70 days (starting with 20-day old juveniles) without additional feeding. The various defined media reported here can be adopted to study specific aspects of earthworm biology and ecotoxicology in the laboratory, but would not replace the existing OECD methods. |
| doi_str_mv | 10.1016/j.apsoil.2006.09.007 |
| format | Article |
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E. fetida, added as juveniles, has previously been developed. However, one of the nutrients is not available anymore, and modifications were required. A series of various combinations were evaluated using commercially available nutrients such as fatty acids, organic phosphates and oxy-humic acids. All of the media supported growth (excepting one containing creatinine), but cocoons were only produced in some. It was shown that the growth and reproduction of
E. fetida could be studied in a defined medium for up to 70 days (starting with 20-day old juveniles) without additional feeding. The various defined media reported here can be adopted to study specific aspects of earthworm biology and ecotoxicology in the laboratory, but would not replace the existing OECD methods.</description><identifier>ISSN: 0929-1393</identifier><identifier>EISSN: 1873-0272</identifier><identifier>DOI: 10.1016/j.apsoil.2006.09.007</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>adenosine triphosphate ; Agronomy. Soil science and plant productions ; animal growth ; animal reproduction ; Biochemistry and biology ; Biological and medical sciences ; Chemical, physicochemical, biochemical and biological properties ; creatinine ; culture media ; Defined medium ; Earthworms ; Eisenia fetida ; fatty acids ; Fundamental and applied biological sciences. Psychology ; Growth ; humic acids ; Juvenile test ; nutrient availability ; phosphates ; Physics, chemistry, biochemistry and biology of agricultural and forest soils ; Reproduction ; Soil science ; toxicity testing ; Zoology (interactions between soil fauna and agricultural or forest soils)</subject><ispartof>Applied soil ecology : a section of Agriculture, ecosystems & environment, 2007-03, Vol.35 (3), p.566-581</ispartof><rights>2006 Elsevier B.V.</rights><rights>2007 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c391t-22d0b3ad15d5aaa37d87429b97e41f291936a62f077fbc3df61e64af498f33523</citedby><cites>FETCH-LOGICAL-c391t-22d0b3ad15d5aaa37d87429b97e41f291936a62f077fbc3df61e64af498f33523</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S092913930600206X$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65534</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=18462229$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Bouwman, Henk</creatorcontrib><title>Modifications to a defined medium for the study of the biology and toxicology of the earthworm Eisenia fetida (Oligochaeta)</title><title>Applied soil ecology : a section of Agriculture, ecosystems & environment</title><description>Defined and standardised media for the investigation of growth and reproduction of earthworms from a juvenile stage have been developed, but still retain a measure of components that are difficult to characterise completely. A defined medium, based on vermiculate, cellulose, humic acid and other components that are commercially available, and that supports growth and reproduction of
E. fetida, added as juveniles, has previously been developed. However, one of the nutrients is not available anymore, and modifications were required. A series of various combinations were evaluated using commercially available nutrients such as fatty acids, organic phosphates and oxy-humic acids. All of the media supported growth (excepting one containing creatinine), but cocoons were only produced in some. It was shown that the growth and reproduction of
E. fetida could be studied in a defined medium for up to 70 days (starting with 20-day old juveniles) without additional feeding. The various defined media reported here can be adopted to study specific aspects of earthworm biology and ecotoxicology in the laboratory, but would not replace the existing OECD methods.</description><subject>adenosine triphosphate</subject><subject>Agronomy. Soil science and plant productions</subject><subject>animal growth</subject><subject>animal reproduction</subject><subject>Biochemistry and biology</subject><subject>Biological and medical sciences</subject><subject>Chemical, physicochemical, biochemical and biological properties</subject><subject>creatinine</subject><subject>culture media</subject><subject>Defined medium</subject><subject>Earthworms</subject><subject>Eisenia fetida</subject><subject>fatty acids</subject><subject>Fundamental and applied biological sciences. 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E. fetida, added as juveniles, has previously been developed. However, one of the nutrients is not available anymore, and modifications were required. A series of various combinations were evaluated using commercially available nutrients such as fatty acids, organic phosphates and oxy-humic acids. All of the media supported growth (excepting one containing creatinine), but cocoons were only produced in some. It was shown that the growth and reproduction of
E. fetida could be studied in a defined medium for up to 70 days (starting with 20-day old juveniles) without additional feeding. The various defined media reported here can be adopted to study specific aspects of earthworm biology and ecotoxicology in the laboratory, but would not replace the existing OECD methods.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.apsoil.2006.09.007</doi><tpages>16</tpages></addata></record> |
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| identifier | ISSN: 0929-1393 |
| ispartof | Applied soil ecology : a section of Agriculture, ecosystems & environment, 2007-03, Vol.35 (3), p.566-581 |
| issn | 0929-1393 1873-0272 |
| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | adenosine triphosphate Agronomy. Soil science and plant productions animal growth animal reproduction Biochemistry and biology Biological and medical sciences Chemical, physicochemical, biochemical and biological properties creatinine culture media Defined medium Earthworms Eisenia fetida fatty acids Fundamental and applied biological sciences. Psychology Growth humic acids Juvenile test nutrient availability phosphates Physics, chemistry, biochemistry and biology of agricultural and forest soils Reproduction Soil science toxicity testing Zoology (interactions between soil fauna and agricultural or forest soils) |
| title | Modifications to a defined medium for the study of the biology and toxicology of the earthworm Eisenia fetida (Oligochaeta) |
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