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Phototropins do not alter accumulation of evening-phased circadian transcripts under blue light

Litthauer, S and Battle, MW and Jones, MA (2016) 'Phototropins do not alter accumulation of evening-phased circadian transcripts under blue light.' Plant Signaling and Behavior, 11 (2). ISSN 1559-2316

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© 2016 Taylor & Francis Group, LLC. The circadian system induces rhythmic variation in a suite of biochemical and physiological processes that serve to optimise plant growth in diel cycles. To be of greatest utility, these rhythmic behaviors are coordinated with regular environmental changes such as the rising and setting of the sun. Photoreceptors, along with metabolites produced during photosynthesis, act to synchronise the internal timing mechanism with lighting cues. We have recently shown that phototropins help maintain robust rhythms of photosynthetic operating efficiency (ϕPSII or F q ′/F m ′) under blue light, although rhythmic accumulation of morning-phased circadian transcripts in the nucleus was unaffected. Here we report that evening-phased nuclear clock transcripts were also unaffected. We also observe that rhythms of nuclear clock transcript accumulation are maintained in phototropin mutant plants under a fluctuating lighting regime that induced a loss of F q ′/F m ′ rhythms.

Item Type: Article
Subjects: Q Science > QK Botany
Divisions: Faculty of Science and Health > Biological Sciences, School of
Depositing User: Matthew Jones
Date Deposited: 19 Jan 2016 12:37
Last Modified: 06 Mar 2019 01:15

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