scholarly journals The effects of different constant temperatures on the activity of corpora allata in Morimus funereus (Coleoptera: Cerambycidae) larvae

2003 ◽  
Vol 55 (3-4) ◽  
pp. 21P-22P ◽  
Author(s):  
Marija Mrdakovic-Mitic ◽  
Larisa Ilijin ◽  
Mina Vlahovic ◽  
Milena Jankovic-Tomanic ◽  
Vesna Peric-Mataruga ◽  
...  
2007 ◽  
Vol 59 (3) ◽  
pp. 47P-48P
Author(s):  
Marija Mrdakovic ◽  
Jelica Lazarevic ◽  
Vesna Peric-Mataruga ◽  
Milena Jankovic-Tomanic ◽  
Larisa Ilijin ◽  
...  

2005 ◽  
Vol 57 (2) ◽  
pp. 83-92 ◽  
Author(s):  
Marija Mrdakovic ◽  
Larisa Ilijin ◽  
Milena Jankovic-Tomanic ◽  
Milena Vlahovic ◽  
Zlatko Prolic ◽  
...  

The effects of different temperatures (23?C and 8?C) on activity of corpora allata (CA) and dorsolateral (L1, L2) protocerebral neurosecretory neurons were investigated in Morimus funereus Mulsant (1863) larvae collected from a natural population during March. Activity of CA was revealed by monitoring of CA volume and cell number. Increase of CA volume after two day exposure to both temperatures was shown to be the result of increase in cell number. Activity of CA was higher at 23?C than 8?C. Activity of L1 and L2 neurosecretory neurons was inhibited at both temperatures. Neurosecretory neurons were more sensitive to temperature of 23?C than 8?C. It can be supposed that dorsolateral neurosecretory neurons synthesize neurohormones that affect CA activity, depending on environmental temperature.


Author(s):  
Melania Stan ◽  
Rodica Serafim ◽  
Sanda Maican

Abstract 222 coleopteran species and subspecies, belonging to 25 families, were found between 2014-2015 during faunal sampling in “Frumoasa” Site and its surroundings. Out of them, Carabus variolosus Fabricius, Lucanus cervus (Linnaeus), Osmoderma eremita (Scopoli), Cerambyx cerdo (Linnaeus), Morimus funereus Mulsant and Rosalia alpina (Linnaeus) are species of community importance, included in the Annex II of the Habitat Directive. In addition, several endemic or rare species/subspecies were collected: Carabus gigas gigas Creutzer, C. planicollis planicollis Küster, C. obsoletus carpathicus Palliardi, Poecilus szepligetii szepligetii (Csiki), Pterostichus findelii (Dejean) and P. pilosus wellensii (Drapiez).


1986 ◽  
Vol 64 (12) ◽  
pp. 2669-2673 ◽  
Author(s):  
B. Duff Sloley ◽  
Roger G. H. Downer ◽  
Cedric Gillott

Tryptophan, 5-hydroxytryptamine, and dopamine were measured in the frontal ganglion, corpora cardiaca, corpora allata, nerves of the suboesophageal ganglion, nerves of the thoracic ganglia, gut, testes, and ovaries of the cockroach Periplaneta americana using high performance liquid chromatography with electrochemical detection. 5-Hydroxytryptamine was demonstrated in the frontal ganglion, corpora cardiaca, corpora allata, and nerves of the suboesophageal ganglion but not in the gut, testes, ovaries, or nerves of the thoracic ganglia. These results quantitatively confirm immunohistochemical studies of 5-hydroxytryptamine in neurohaemal and nonneuronal tissues of the cockroach. Dopamine was found in all neurohaemal and nervous tissue examined. Dopamine was also found at low levels in the rectum. Tryptophan was found in all tissues examined.


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