Riboflavin content in the coelomocytes of contrasting earthworm species is differentially affected by edaphic variables including organic matter and metal content

Plytycz, Barbara, Klimek, Malgorzata, Klimek, Beata Anna, Szymanski, Wojciech, Kruk, Jerzy and Morgan, Andrew John 2011. Riboflavin content in the coelomocytes of contrasting earthworm species is differentially affected by edaphic variables including organic matter and metal content. Pedobiologia 54 (Suppl) , S43-S48. 10.1016/j.pedobi.2011.07.003

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Abstract

The riboflavin content in extruded coelomocyte lysates derived from Dendrodrilus rubidus may serve as a sensitive bioindicator of soil metal pollution: the vitamin (B2) content has previously been found to be high in worms from unpolluted soil but low in worms inhabiting Zn/Pb mine soils, aerially deposited Ni-contaminated soil, and in worms experimentally transferred from clean soil to the metalliferous field soils. The aim of the present work was to extend these observations by comparing the number and riboflavin composition of coelomocytes retrieved from three lumbricid species (Allolobophora chlorotica, Dendrobaena veneta, Eisenia andrei) after 4-week exposures to an unpolluted commercial soil, two geochemically contrasting unpolluted field soils, and two different Zn/Pb/Cd-polluted soils from the Bukowno district in South Poland. Whilst eco-physiologically contrasting, these three earthworm species share the trait of possessing relatively high numbers of eleocytes, a category of immune-competent coelomocyte rich in autofluorescent riboflavin. Spectroflurometric analysis indicated that coelomocyte riboflavin content in worms maintained in strongly metalliferous soils or in unpolluted sandy-clay and loamy-sand soils was increased in coleomocytes from epigeic D. veneta and E. andrei species, whilst was decreased in endogeic A. chlorotica. In conclusion, the riboflavin content of earthworm coelomocytes is affected in species-specific ways by edaphic variables, including organic matter and metal pollution.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Biosciences
Subjects:	G Geography. Anthropology. Recreation > GE Environmental Sciences Q Science > Q Science (General) Q Science > QH Natural history > QH301 Biology
Uncontrolled Keywords:	Eleocytes; Riboflavin; Eisenia andrei; Dendrobaena veneta; Allolobophora chlorotica; Metals, Spectrofluorometery
Additional Information:	from the 9th International Symposium on Earthworm EcologyXalapa, Veracruz, Mexico, 5th – 10th September 2010. Available online 27 July 2011.
Publisher:	Elsevier
ISSN:	0031-4056
Last Modified:	24 Mar 2017 03:16
URI:	https://orca.cardiff.ac.uk/id/eprint/21911

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