Morphology and ultrastructure of a bacteria cultivation organ: The antennal glands of female European beewolves, Philanthus triangulum (Hymenoptera, Crabronidae)

2007 ◽  
Vol 36 (1) ◽  
pp. 1-9 ◽  
Author(s):  
Wolfgang Goettler ◽  
Martin Kaltenpoth ◽  
Gudrun Herzner ◽  
Erhard Strohm
Keyword(s):  
Philanthus Triangulum ◽  
Antennal Glands

Osmoregulation in the Lobster Homarus americanus

1970 ◽  
Vol 27 (6) ◽  
pp. 1123-1130 ◽  
Author(s):  
W. Dall
Keyword(s):  
Freezing Point ◽  
Homarus Americanus ◽  
Salinity Range ◽  
Limited Extent ◽  
Salt Loading ◽  
Excess Water ◽  
Salt Excretion ◽  
Rapid Adjustment ◽  
Antennal Glands

Lobsters took 72 hr to adapt to a salinity of 20‰, with urine becoming markedly hypoosmotic to the blood during the first 25 hr, then increasing in concentration over the next 48 hr, though remaining significantly hypoosmotic to the blood. Adaptation to a salinity of 37‰ took 24 hr: the urine became almost isosmotic with the blood: the gastric and rectal fluids became hyperosmotic to the blood. Blood freezing-point determinations showed that over the salinity range 20–37‰ the lobster is able to osmoregulate to a limited extent only towards the lower end of the range, being otherwise an "osmocon-former." Salt-loading experiments indicated that the excess salts were rapidly excreted into the gut. It is concluded that the antennal glands are at least partly responsible for elimination of excess water, but that the gut is the site of salt excretion, and that there is rapid adjustment of salt imbalance.

Ca2+ transport pathways in brush-border membrane vesicles of crustacean antennal glands

1993 ◽  
Vol 264 (6) ◽  
pp. R1206-R1213 ◽  
Author(s):  
G. A. Ahearn ◽  
P. Franco
Keyword(s):  
Membrane Potential ◽  
Brush Border ◽  
Brush Border Membrane ◽  
Membrane Vesicles ◽  
Brush Border Membrane Vesicles ◽  
Carrier System ◽  
Transport Pathways ◽  
45Ca Uptake ◽  
Negative Membrane Potential ◽  
Antennal Glands

Calcium uptake by brush-border membrane vesicles of Atlantic lobster (Homarus americanus) kidneys (antennal glands) in independent experiments was stimulated by outwardly directed Na or H gradients. In the absence of external amiloride, 45Ca uptake was strongly stimulated by an outwardly directed Na gradient, and this stimulation was enhanced by the addition of an inside-negative membrane potential. External amiloride (2 mM) reduced 45Ca uptake sixfold and lowered sensitivity to membrane potential. 45Ca influx kinetics (2.5-s uptake) in the presence of an outwardly directed H gradient and inside-negative membrane potential were composed of three components: 1) an amiloride-sensitive carrier system, 2) an amiloride-insensitive carrier system, and 3) a verapamil- and membrane potential-sensitive process that may represent diffusional transfer through a calcium channel. It was concluded that 45Ca entry by the amiloride-sensitive process occurred by a previously described electrogenic 2 Na-1 H antiport mechanism [Ahearn, G., and L. Clay. Am. J. Physiol. 257 (Regulatory Integrative Comp. Physiol. 26): R484-R493, 1989; Am. J. Physiol. 259 (Renal Fluid Electrolyte Physiol. 28): F758-F767, 1990; Ahearn, G., P. Franco, and L. Clay. J. Membr. Biol. 116: 215-226, 1990]. 45Ca influx by the amiloride-insensitive mechanism occurred by an apparent electroneutral 1 Ca-2 Na exchange. Transport stoichiometry of the latter mechanism was tentatively established by experiments determining intravesicular Na binding properties and by its apparent lack of response to a membrane potential. At physiological Na, Ca, and H concentrations in the antennal gland lumen and epithelial cytosol, these three calcium transport pathways individually may make significant contributions to net calcium reabsorption to the blood.

scholarly journals Antennal glands in male bees: structures for sexual communication by pheromones?

Apidologie ◽  
2003 ◽  
Vol 34 (6) ◽  
pp. 603-610 ◽  
Author(s):  
Roberto Romani ◽  
Nunzio Isidoro ◽  
Paola Riolo ◽  
Ferdinando Bin
Keyword(s):  
Sexual Communication ◽  
Antennal Glands

Molecular Cloning of a Novel Crustacean Member of the Aldoketoreductase Superfamily, Differentially Expressed in the Antennal Glands

2001 ◽  
Vol 282 (1) ◽  
pp. 314-320 ◽  
Author(s):  
M. Maïbèche-Coisne ◽  
M. Boscameric ◽  
S. Aragon ◽  
R. Lafont ◽  
C. Dauphin-Villemant
Keyword(s):  
Molecular Cloning ◽  
Differentially Expressed ◽  
Antennal Glands

Antennal glands in queen and worker of the fire ant, Solenopsis invicta Buren: first report in female social Aculeata (Hymenoptera, Formicidae)

2000 ◽  
Vol 47 (3) ◽  
pp. 236-240 ◽  
Author(s):  
N. Isidoro ◽  
R. Romani ◽  
D. Velasquez ◽  
R. Renthal ◽  
F. Bin ◽  
...  
Keyword(s):  
Solenopsis Invicta ◽  
Fire Ant ◽  
First Report ◽  
Solenopsis Invicta Buren ◽  
Antennal Glands
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