030810H3 SD-LD

Property Value
BioDare ID 13982027442235
Author Sarah Hodge
Institution University of Edinburgh
License CC_BY

Description

Plants entrained in 8L:16D (120umol m-2s-1) for 7 days. Experimental Conditions: 2 days 8L:16D, 4 days 16L:8D (red and blue light 60umolm-2s-1)

Purpose

Re-entrainment dynamics during transition between light:dark cycles with different photoperiods, comparing Arabidopsis thaliana and Ostreococcus tauri. This expt in A. thaliana with transcriptional reporters.

Comments

PARTNER EXPERIMENT : 030810H3 LD-LD

Sample preparation

sprayed on day 6 and returned to entrainment conditions. Plates transferred to experimental conditions at dawn on day 7.

Measurement

Protocol

Luciferase luminescence (HAM 3)

imaging script starts 5 minutes before required ZT, then 55 minutes interval, 5 minutes light off, 30 minutes capture

Experimental conditions

8L:16D

Growth on Agar 1.2% MS 0.5 for 7.0 days (8L:16D). Entrainment

Light

Type Duration (days) Cycle (h) Start Duration Spectrum Source Intensity
diurnal light 7 24 0:00 8:00 white tube 100

Temperature

Type Duration (days) Cycle (h) Base (°C) Warm (°C) Warm start Warm duration
constant temperature 7 24 22 -- -- --

SD to LD

Growth on Agar 1.2% MS 0.5 for 7.0 days (SD to LD). 2 days 8L:16D, 4 days 16L:8D. The light conditions are 60umolm-2s-1 (red and blue).

Light

Type Duration (days) Cycle (h) Start Duration Spectrum Source Intensity
diurnal light 2 24 0:00 8:00 red LED 40
diurnal light 4 24 0:00 16:00 red LED 40
diurnal light 2 24 0:00 8:00 blue LED 20
diurnal light 4 24 0:00 16:00 blue LED 20

Temperature

Type Duration (days) Cycle (h) Base (°C) Warm (°C) Warm start Warm duration
constant temperature 7 24 22 -- -- --

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