| Title: | Circadian clocks of both plants and pollinators influence flower seeking behavior of the pollinator hawkmoth Manduca sexta |
| Author(s): | Fenske MP; Nguyen LP; Horn EK; Riffell JA; Imaizumi T; |
| Address: | "Department of Biology, University of Washington, 24 Kincaid Hall, Box 351800, Seattle, WA, 98195-1800, USA. Department of Biology, University of Washington, 24 Kincaid Hall, Box 351800, Seattle, WA, 98195-1800, USA. takato@u.washington.edu" |
| DOI: | 10.1038/s41598-018-21251-x |
| ISSN/ISBN: | 2045-2322 (Electronic) 2045-2322 (Linking) |
| Abstract: | "Most plant-pollinator interactions occur during specific periods during the day. To facilitate these interactions, many flowers are known to display their attractive qualities, such as scent emission and petal opening, in a daily rhythmic fashion. However, less is known about how the internal timing mechanisms (the circadian clocks) of plants and animals influence their daily interactions. We examine the role of the circadian clock in modulating the interaction between Petunia and one of its pollinators, the hawkmoth Manduca sexta. We find that desynchronization of the Petunia circadian clock affects moth visitation preference for Petunia flowers. Similarly, moths with circadian time aligned to plants show stronger flower-foraging activities than moths that lack this alignment. Moth locomotor activity is circadian clock-regulated, although it is also strongly repressed by light. Moths show a time-dependent burst increase in flight activity during subjective night. In addition, moth antennal responsiveness to the floral scent compounds exhibits a 24-hour rhythm in both continuous light and dark conditions. This study highlights the importance of the circadian clocks in both plants and animals as a crucial factor in initiating specialized plant-pollinator relationships" |
| Keywords: | "Animals *Circadian Clocks Flight, Animal Flowers/*chemistry Insect Proteins/metabolism Manduca/metabolism/*physiology Odorants Petunia/*metabolism/parasitology Plant Proteins/metabolism Pollination;" |
| Notes: | "MedlineFenske, Myles P Nguyen, LeAnn P Horn, Erin K Riffell, Jeffrey A Imaizumi, Takato eng R01 GM079712/GM/NIGMS NIH HHS/ T32 GM007270/GM/NIGMS NIH HHS/ Research Support, N.I.H., Extramural Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. England 2018/02/13 Sci Rep. 2018 Feb 12; 8(1):2842. doi: 10.1038/s41598-018-21251-x" |
