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The effect of temperature on midgut and brain protein profiles in Morimus funereus larvae (Coleptera: Cerambycidae)

100%

Ilijin L., Jankovic-Tomanic M., Mitic M., Vlahovic M., Prolic Z., Nenadovic V.

Folia Biologica

2002

vol. 50

issue 3-4

103-105

The 7-days shift of M. funereus larvae, from nature to a constant temperature of 23?C led to changes in midgut and brain protein quality and quantity. The changes in midgut protein profiles are characterized by an intensified protein band Mr of 29 kD, the absence of protein Mr of 22 kD and less intense bands Mr of 8.5-2.5 kD. Electrophoretic patterns of brain proteins showed less intense Mr of 66-2.5 kD protein bands.

Changes in midgut and brain proteins in Morimus funereus larvae depending on nutritive substrate

84%

Ilijin L., Jankovic-Tomanic M., Mitic M., Vlahovic M., Lazarevic M., Lazarevic J., Peric-Mataruga V., Prolic Z., Nenadovic V.

The response of Morimus funereus larvae to total starvation and refeeding with qualitatively different nutritive substrates (artificial diets supplemented with yeast as a source of B complex vitamins or with a digestibility reducer-tannic acid) was examined in this paper. Refeeding resulted in a compensatory increase of larval growth. Feeding and refeeding with qualitatively different nutritive substrates affected both quality and quantity of midgut and brain proteins. The observed differences suggest the possible switching of enzyme isoforms in M. funereus midgut and changes in synthesis/secretion of neurohormones, depending on food presence and its nutritional value.

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2 Folia Biologica

1 2003

1 2002

2 Ilijin L.

2 Jankovic-Tomanic M.

2 Mitic M.

2 Nenadovic V.

2 Prolic Z.

2 Vlahovic M.

1 Lazarevic J.

1 Lazarevic M.

1 Peric-Mataruga V.

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The effect of temperature on midgut and brain protein profiles in Morimus funereus larvae (Coleptera: Cerambycidae)

Changes in midgut and brain proteins in Morimus funereus larvae depending on nutritive substrate