Exocrine Gland Secretions of Virgin Queens of Five Bumblebee Species (Hymenoptera: Apidae, Bombini)

2004 ◽  
Vol 59 (7-8) ◽  
pp. 582-589 ◽  
Author(s):  
Lucie Cahlíková ◽  
Oldřich Hovorka ◽  
Vladimír Ptáček ◽  
Irena Valterová
Keyword(s):  
Mandibular Gland ◽  
Exocrine Gland ◽  
Dufour's Gland ◽  
Dufour’S Gland ◽  
Labial Gland ◽  
Mandibular Glands ◽  
Bumblebee Species ◽  
Bombus Lucorum ◽  
Virgin Queens

AbstractSecretions of three different glands (mandibular gland, labial gland, and Dufour’s gland) of virgin queens of five bumblebee species (Bombus lucorum, B. lapidarius, B. hypnorum, B. pascuorum, and B. terrestris) were analysed. Around 200 compounds were identified in the secretions. The compositions of the secretions of labial and mandibular glands were speciesspecific. Dufour’s gland of all species produced mainly hydrocarbons, both saturated and unsaturated, the proportions of which differed quantitatively between the species studied

Aggressive behavior of Apis mellifera L. workers towards introduced queens. II. Role of the mandibular gland contents of the queen in releasing aggressive behavior

1971 ◽  
Vol 49 (8) ◽  
pp. 1179-1183 ◽  
Author(s):  
R. P. S. Yadava ◽  
M. V. Smith
Keyword(s):  
Apis Mellifera ◽  
Aggressive Behavior ◽  
Mandibular Gland ◽  
Mandibular Glands ◽  
Virgin Queens

Removal of the mandibular glands from virgin queens eliminated the balling response of workers towards them. Worker bees coated with the contents of queen mandibular glands elicited aggressive behavior in sister workers; the aggression increased with an increasing amount of gland contents. The contents of glands removed while the queen was under complete anaesthesia appeared to provoke less worker aggression.

scholarly journals Discrimination of the bumblebee species Bombus lucorum, Bombus cryptarum and Bombus magnus by morphological characters and male labial gland secretions (Hymenoptera: Apidae).

2004 ◽  
Vol 54 (2) ◽  
pp. 365-386
Author(s):  
Andreas Bertsch ◽  
Horst Schweer ◽  
Andreas Titze
Keyword(s):  
Morphological Characters ◽  
Labial Gland ◽  
Wird Eine ◽  
Bumblebee Species ◽  
Bombus Lucorum

Frühjahrsköniginnen von B. lucorum, B. cryptarum und B. magnus von jeweils 2 Fundorten in Brandenburg (Deutschland) und Schottland (Vereinigtes Königreich) wurden mittels morphologischer Merkmale bestimmt. Dabei erwies sich die laterale Begrenzung des Collare am Rand des Pronotallobus oder auf dem Episternum als besonders brauchbares Merkmal. Farbfrische Königinnen der drei untersuchten Arten lassen sich sicher bestimmen, es sind gute Morphospezies. An Hand von sicher bestimmtem Material (EE) werden von B. cryptarum und B. magnus Verbreitungskarten für Berlin und Brandenburg erstellt, aus den Fangdaten wird eine Frühjahrsphänologie der Flugaktivität für Königinnen rekonstruiert. Königinnen von B. cryptarum kommen im frühen Frühjahr aus dem Winterschlaf, sie sind 2-3 Wochen vor den Königinnen von B. magnus aktiv. Von sicher bestimmten Königinnen wurden Kolonien gezüchtet und die Labialdrüsen von Männchen aus diesen Zuchten gaschromatographisch/ massenspektrometrisch untersucht. Etwa 50 Substanzen, eine Mischung geradkettiger Fettsäurederivate (Alkohole, Ester und Kohlenwasserstoffe), wurden identifiziert. An Hand der Labialdrüsensekrete lassen sich drei unterschiedliche Taxa sicher trennen. Die Labialdrüsensekrete der Männchen von B. magnus aus Schottland und Brandenburg sind identisch, die Arterkennungssignale sind also großräumig stabil. Die Labialdrüsensekrete der Männchen von B. cryptarum aus Brandenburg und aus Schottland sind ebenfalls identisch, damit ist B. cryptarum erstmals als Bestandteil der Fauna der Britischen Inseln nachgewiesen. Die Unterschiede der als Arterkennungssignale genutzten Sekrete der Labialdrüsen bestätigen den morphologischen Befund, B. lucorum, B. cryptarum und B. magnus sind gute Arten.

scholarly journals Proteomic analysis in the Dufour’s gland of Africanized Apis mellifera workers (Hymenoptera: Apidae)

PLoS ONE ◽  
2017 ◽  
Vol 12 (5) ◽  
pp. e0177415 ◽  
Author(s):  
Aparecida das Dores Teixeira ◽  
Patricia D. Games ◽  
Benjamin B. Katz ◽  
John M. Tomich ◽  
José C. Zanuncio ◽  
...  
Keyword(s):  
Apis Mellifera ◽  
Proteomic Analysis ◽  
Dufour's Gland ◽  
Dufour’S Gland

Natural Polyesters: Dufour's Gland Macrocyclic Lactones Form Brood Cell Laminesters in Colletes Bees

Science ◽  
1979 ◽  
Vol 204 (4391) ◽  
pp. 415-417 ◽  
Author(s):  
A. HEFETZ ◽  
H. M. FALES ◽  
S. W. T. BATRA
Keyword(s):  
Dufour's Gland ◽  
Brood Cell ◽  
Dufour’S Gland ◽  
Macrocyclic Lactones

Dufour’s gland contents of queens of the slave-making antPolyergus rufescensand its host speciesFormica cunicularia

2000 ◽  
Vol 12 (1) ◽  
pp. 67-73 ◽  
Author(s):  
R. Visicchio ◽  
M. F. Sledge ◽  
A. Mori ◽  
D. A. Grasso ◽  
F. Le Moli ◽  
...  
Keyword(s):  
Dufour's Gland ◽  
Dufour’S Gland

Virus-like particles from the poison glands of the parasitic wasp Biosteres longicaudatus (Hymenoptera: Braconidae)

1990 ◽  
Vol 68 (3) ◽  
pp. 539-546 ◽  
Author(s):  
Pauline O. Lawrence ◽  
Debra Akin
Keyword(s):  
Outer Membrane ◽  
Parasitic Wasp ◽  
Accessory Gland ◽  
Spherical Particles ◽  
Dufour's Gland ◽  
Dufour’S Gland ◽  
Anastrepha Suspensa ◽  
Virus Like Particles ◽  
Poison Glands ◽  
Crystalline Matrix

Two virus-like particles occur in the venom apparatus (poison glands) associated with the ovaries of the parasitic wasp Biosteres longicaudatus (Hymenoptera: Braconidae). The venom apparatus consists of accessory gland filaments (tubules) (AGFs) and a short, carrot-shaped, muscular sac, Dufour's gland. Rod-shaped particles measuring 250–300 nm long and 60–70 nm wide with convex ends occur in 100% of the cells examined along the middle third of the AGFs. These particles are associated with an electron-dense crystalline matrix within a stroma surrounded by vesicles. Similar particles are present in vacuoles in 76–90% of the epidermal cells in the pharate pupal host, Anastrepha suspensa (Diptera: Tephritidae), after parasitization by B. longicaudatus. The second type of particle is spherical and has an outer membrane with a beaded surface. It is about 250 nm in diameter and has an electron-dense biconcave central core with two lateral bodies, and resembles entomopoxviruses. Such particles occur within a stroma in 80–90% of the cells along the proximal third of the AGF, and within its lumen, to which the cells are connected by a short, cuticle-lined duct. These AGF cells are morphologically distinct from those containing the rod-shaped particles. The "mature" spherical particles accumulate in the Dufour's gland, which empties into the median oviduct, and are injected into the host by the wasp during oviposition. Similar particles are present in 63–80% of the hemocytes of parasitized hosts.

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