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Sense Organs (4)
Articles on Sense Organs
Identification of a sex pheromone produced by sternal glands in females of the caddisfly Molanna angustata curtis.
In the caddisfly Molanna angustata, females produce a sex pheromone in glands with openings on the fifth sternite. Gas chromatographic analyses of pheromone gland extracts with electroantennographic detection revealed four major compounds that stimulated male antennae. These compounds were identifie...
Sexual dimorphism in the antennal lobe of the ant Camponotus japonicus.
We found sexual dimorphism of the antennal lobe glomeruli in carpenter ants, Camponotus japonicus. Female workers and unmated queens had about 430 glomeruli, the highest number reported so far in ants. Males had a sexually dimorphic macroglomerulus and about 215 ordinary glomeruli. This appeared to...
Organization of the olfactory pathway and odor processing in the antennal lobe of the ant Camponotus floridanus.
We provide the first detailed structure-function analyses within an ant's central olfactory system asking whether in the carpenter ant, Camponotus floridanus, the olfactory pathway exhibits adaptations to processing many pheromonal and general odors. Using fluorescent tracing, confocal microscopy, a...
[Adaptation of sensory systems of gamasid mites (Parasitiformes, Gamasina) to dwelling in different environment].
The main complication sensory organs (the palpal organ and the tarsal sensory complex) of several species of gamasid mites were studied in scanning electron microscope. The species examined included permanent ectoparasites (Laelaps agilis, Laelaptidae), parasites of the nasal cavity and respiratory...
The anatomy and ultrastructure of the suctorial organ of Solifugae (Arachnida)
Solifugae possess an evertable, adhesive pedipalpal organ (suctorial organ) at the tip of the distal tarsus of each pedipalp that is unique among arachnids. When inverted inside the pedipalp, the suctorial organ is covered with two cuticular lips, a dorsal upper lip and a ventral lower lip, but it c...
The atypical mammalian ligand Delta-like homologue 1 (Dlk1) can regulate Notch signalling in Drosophila.
Here we show that membrane-bound DLK1 can regulate Notch leading to altered cellular distribution of Notch itself and inhibiting expression of Notch target genes. The resulting adult phenotypes are indicative of reduced Notch function and are enhanced by Notch mutations, confirming that DLK1 action...
Floral odors of Silene otites: their variability and attractiveness to mosquitoes.
Inflorescence scent samples from nine populations of dioecious Silene otites, a plant pollinated by moths and mosquitoes, were collected by dynamic headspace extraction. Sixty-three scent samples were analyzed by gas chromatography-mass spectrometry. Out of 38 found, 35 compounds were identified, mo...
Abi induces ectopic sensory organ formation by stimulating EGFR signaling.
We have recently shown that the Drosophila Abi is capable of promoting bristle development in a wasp dependent fashion. Here, we report that Drosophila Abi induces sensory organ development by modulating EGFR signaling. Expression of a membrane-tethered activated Abi protein (Abi(Myr)) leads to an i...
New sex attractant composition for the click beetle Agriotes proximus: similarity to the pheromone of Agriotes lineatus.
While testing traps baited with a blend of geranyl octanoate and geranyl butanoate (pheromone components previously identified for Agriotes lineatus, Coleoptera, Elateridae) in Portugal and Bulgaria, large numbers of the closely related Agriotes proximus were captured. In the literature, two differe...
Multisensory interface design for drivers: past, present and future.