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Title

Arabidopsis thaliana floral stem elongation: Evidence for an endogenous circadian rhythm
Authors
Jouve, Laurent
Greppin, Hubert
Degli Agosti, Robert
Published in Plant Physiology and Biochemistry. 1998, vol. 36, p. 469-472
Abstract The floral stem elongation of Arabidopsis thaliana, Landsberg erecta ecotype, was studied with a plant growth­measuring apparatus using linear voltage differential transformers as sensors. Elongation rate displayed a clear rhythm which could be synchronized by a L:D (12:12) or L:D (7:7) photoperiod. The rhythm persisted afterwards in continuous constant conditions (CL). When pre-synchronization was L:D (12:12), the period in CL was 23.5 h. After L:D (7:7) synchronization (equal light/dark photoperiod which was not in phase with the 24 h daily period) a period of 21.4 h was measured in CL. Moreover, this later treatment triggered a significant increase in the first internode length. Thus, these results showed clearly that the floral stem growth was under the control of an endogenous circadian rhythm
Keywords Arabidopsis thaliana — Floral stem elongation rate — Photoperiod — Circadian rhythm
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Article (Published version) (600 Kb) - document accessible for UNIGE members only Limited access to UNIGE
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Faculté des sciences / Section des sciences de la Terre et de l'Environnement / Département F.-A. Forel des sciences de l'environnement et de l'eau
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(ISO format) 		JOUVE, Laurent, GREPPIN, Hubert, DEGLI AGOSTI, Robert. Arabidopsis thaliana floral stem elongation: Evidence for an endogenous circadian rhythm. In: Plant Physiology and Biochemistry, 1998, vol. 36, p. 469-472. doi: 10.1016/S0981-9428(98)80212-X https://archive-ouverte.unige.ch/unige:42741

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