Proteomics

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Twilight length alters clock function, growth and flowering time in Arabidopsis via LHY/CCA1

ABSTRACT: In this study we developed an experimental set-up to study variation in twilight length using recently developed 7-band LED lights with fully programmable spectra and sigmoidal ramping of light intensity in controlled growth chambers. We employed this set-up to gain a comprehensive understanding of the impact of changing twilight lengths on Arabidopsis thaliana (Col-0) plants at both physiological and molecular levels. We studied the effect of a wide range of twilight lengths (0 min, 15 min, 30 min, 60 min, 90 min) on plant growth.

INSTRUMENT(S): Orbitrap Fusion Lumos

ORGANISM(S): Arabidopsis Thaliana (mouse-ear Cress)

TISSUE(S): Plant Cell, Rosette

SUBMITTER: Richard Uhrig  

LAB HEAD: Richard Uhrig

PROVIDER: PXD039428 | Pride | 2024-08-24

REPOSITORIES: Pride

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Dataset's files

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Action DRS
20211012_LED_Twilight_TP_01_30_wt_1.raw Raw
20211012_LED_Twilight_TP_03_90_wt_4.raw Raw
20211012_LED_Twilight_TP_04_15_lhycca1_2.raw Raw
20211012_LED_Twilight_TP_05_0_lhycca1_1.raw Raw
20211012_LED_Twilight_TP_06_15_wt_1.raw Raw
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Twilight length alters growth and flowering time in Arabidopsis via <i>LHY</i>/<i>CCA1</i>.

Mehta Devang D   Scandola Sabine S   Kennedy Curtis C   Lummer Christina C   Gallo Maria Camila Rodriguez MCR   Grubb Lauren E LE   Tan Maryalle M   Scarpella Enrico E   Uhrig R Glen RG  

Science advances 20240628 26

Decades of research have uncovered how plants respond to two environmental variables that change across latitudes and over seasons: photoperiod and temperature. However, a third such variable, twilight length, has so far gone unstudied. Here, using controlled growth setups, we show that the duration of twilight affects growth and flowering time via the <i>LHY/CCA1</i> clock genes in the model plant Arabidopsis. Using a series of progressively truncated no-twilight photoperiods, we also found tha  ...[more]

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