Journal article

Publication year: 1982

Pages: 362-372

Journal: Journal of Invertebrate Pathology

Volume number: 39

Issue number: 3

ISSN: 0022-2011

eISSN: 1096-0805

DOI Link: https://doi.org/10.1016/0022-2011(82)90061-1

Publisher: Elsevier

Abstract: 
The effect of the antibiotic Nikkomycin was investigated on the Malpighian tubules and gut of 4th-instar larvae of the Mexican bean beetle, E. varivestis. Within the Malpighian tubules, 3 different stages in cell alterations are recognized. A stage of increased activity (stage A), and 2 stages of dedifferentiation (stages B and C) which are distinguishable by characteristic mitochondrial morphology. In stage C individuals, when Malpighian tubule function stops entirely, alterations in the midgut take place, that are signs of increased activity. Measurements of hemolymph osmotic pressure showed that there is a considerable increase to a higher level which is maintained. Compared with the ultrastructural data, the regulation of osmotic pressure on a higher level may, in part, be the result of compensation for the failure of Malpighian tubule function by the midgut.

Harvard Citation style: SCHLUTER, U., HOLST, H. and RONNAU, K. (1982) ULTRASTRUCTURAL-CHANGES IN THE GUT AND THE MALPIGHIAN TUBULES OF EPILACHNA-VARIVESTIS AFTER APPLICATION OF THE NEW ANTIBIOTIC NIKKOMYCIN INVOLVE AN OSMOREGULATORY DEFECT, Journal of Invertebrate Pathology, 39(3), pp. 362-372. https://doi.org/10.1016/0022-2011(82)90061-1

APA Citation style: SCHLUTER, U., HOLST, H., & RONNAU, K. (1982). ULTRASTRUCTURAL-CHANGES IN THE GUT AND THE MALPIGHIAN TUBULES OF EPILACHNA-VARIVESTIS AFTER APPLICATION OF THE NEW ANTIBIOTIC NIKKOMYCIN INVOLVE AN OSMOREGULATORY DEFECT. Journal of Invertebrate Pathology. 39(3), 362-372. https://doi.org/10.1016/0022-2011(82)90061-1