Pea Aphids (Hemiptera: Aphididae) Have Diurnal Rhythms When Raised Independently of a Host Plant
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- Seasonal timing is assumed to involve the circadian clock, an endogenous mechanism to track time and measure day length. Some debate persists, however, and aphids were among the first organisms for which circadian clock involvement was questioned. Inferences about links to phenology are problematic, as the clock itself is little investigated in aphids. For instance, it is unknown whether aphids possess diurnal rhythms at all. Possibly, the close interaction with host plants prevents independent measurements of rhythmicity. We reared the peaSeasonal timing is assumed to involve the circadian clock, an endogenous mechanism to track time and measure day length. Some debate persists, however, and aphids were among the first organisms for which circadian clock involvement was questioned. Inferences about links to phenology are problematic, as the clock itself is little investigated in aphids. For instance, it is unknown whether aphids possess diurnal rhythms at all. Possibly, the close interaction with host plants prevents independent measurements of rhythmicity. We reared the pea aphid Acyrthosiphon pisum (Harris) on an artificial diet, and recorded survival, moulting, and honeydew excretion. Despite their plant-dependent life style, aphids were independently rhythmic under light–dark conditions. This first demonstration of diurnal aphid rhythms shows that aphids do not simply track the host plant’s rhythmicity.…
Autor(en): | Jens Joschinski, Katharina Beer, Charlotte Helfrich-Förster, Jochen Krauss |
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URN: | urn:nbn:de:bvb:20-opus-168783 |
Dokumentart: | Artikel / Aufsatz in einer Zeitschrift |
Institute der Universität: | Fakultät für Biologie / Theodor-Boveri-Institut für Biowissenschaften |
Sprache der Veröffentlichung: | Englisch |
Titel des übergeordneten Werkes / der Zeitschrift (Englisch): | Journal of Insect Science |
Erscheinungsjahr: | 2016 |
Band / Jahrgang: | 16 |
Heft / Ausgabe: | 1 |
Seitenangabe: | 31 |
Originalveröffentlichung / Quelle: | Journal of Insect Science (2016) 16(1): 31. DOI: 10.1093/jisesa/iew013 |
DOI: | https://doi.org/10.1093/jisesa/iew013 |
Allgemeine fachliche Zuordnung (DDC-Klassifikation): | 5 Naturwissenschaften und Mathematik / 59 Tiere (Zoologie) / 595 Arthropoden (Gliederfüßer) |
Freie Schlagwort(e): | Acyrthosiphon pisum; artificial diet; circadian clock; hourglass clock; photoperiodism |
Datum der Freischaltung: | 03.12.2020 |
Lizenz (Deutsch): | CC BY-NC: Creative-Commons-Lizenz: Namensnennung, Nicht kommerziell 4.0 International |