Johnston-Organ

Johnston-Organ
Johnston-Organ, Schallsinnesorgan verschiedener Insektengruppen; enthält als Rezeptoren mehrere Scolopidien, die bei Mücken am Gelenk zwischen Antennengeißel und 2. Antennenglied liegen; dient u.a. der Geschlechterfindung. Das J. ist ein Schallschnelle-Empfänger ( Gehörsinn): Die Antennengeißel der Mücken wird von den Bewegungen der Luftmoleküle in Schwingung versetzt und überträgt diese Schwingung auf das J.

Deutsch wörterbuch der biologie. 2013.

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  • Johnston-Organ —   [ dʒɔnstən ; nach dem amerikanischen Arzt Christopher Johnston, ✝1891], bei Insekten ein im zweiten Fühlerglied befindliches, mit einer wechselnden Zahl von stiftführenden Sensillen (Skolopidien) ausgestattetes Sinnesorgan, das durch Bewegungen …   Universal-Lexikon

  • Johnston's organ — The Johnson s organ can be seen in Drosophila. It consists of a sail like flagellum which rotates in a structure called the funiculus. This movement causes mechanical movement on the surrounding hairs resulting in a nervous signal propagating.… …   Wikipedia

  • johnston's organ — ˈjän(t)stənz noun Usage: usually capitalized J Etymology: after Christopher Johnston died 1891 American physician : a sense organ in the second antennal segment of insects that responds to movements of the antennal flagellum and serves as a… …   Useful english dictionary

  • organ of Johnston — see Johnston s organ …   Dictionary of invertebrate zoology

  • Johnston's organ — /jon steuhnz/, Entomol. a sense organ in the second segment of the antenna of an insect, sensitive to movements of the antenna s flagellum, as when the insect is in flight. [named after Christopher Johnston (d. 1891), American physician] * * * …   Universalium

  • organ of johnston — Usage: usually capitalized J : johnston s organ …   Useful english dictionary

  • Johnston's organ — (ARTHROPODA: Insecta) A chordotonal organ located in the second segment of the antenna and functioning in sound perception, flight speed indicator or water wave perception …   Dictionary of invertebrate zoology

  • Johnston's organ — noun A collection of sensory cells found in the pedicel of the antennae in the class Insecta …   Wiktionary

  • Metronome (artists' and writers' organ) — Metronome is an artists and writers organ[clarification needed] founded in 1996 by Clémentine Deliss. It acts as alternative art publishing, because it has not a fixed editorial team and a fixed location. Its activity started with the publication …   Wikipedia

  • Daniel Johnston — For the petroleum industry consultant, see Daniel Johnston (consultant). Daniel Johnston Johnston in December 2006 Background information Birth name …   Wikipedia

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