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Design in Arabidopsis thaliana of a synchronous system of floral induction by one long day
Author(s) -
Corbesier Laurent,
Gadisseur Isabelle,
Silvestre Georges,
Jacqmard Annie,
Bernier Georges
Publication year - 1996
Publication title -
the plant journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.058
H-Index - 269
eISSN - 1365-313X
pISSN - 0960-7412
DOI - 10.1046/j.1365-313x.1996.9060947.x
Subject(s) - meristem , ecotype , biology , arabidopsis thaliana , vernalization , botany , shoot , arabidopsis , population , sowing , greenhouse , photoperiodism , day length , horticulture , gene , genetics , mutant , demography , sociology
Summary A system of one‐shot induction of flowering in Arabidopsis thaliana , ecotype Columbia, is described. Plants from vernalized seeds are grown for 2 months in 8 h short days at an irradiance of 48 µmol m −2 sec −1 (fluorescent light only). At that age they can be induced to flower by exposure to either a single long day or a single displaced short day. Non‐induced plants stay vegetative for at least a further month. Synchrony of induction among the individuals of the population exposed to one long day is of the same order as in the best classical model plants, that is, the fastest individuals are only 6 h ahead of the slowest ones. A further advantage of this system is the large size of plants at the time of induction, allowing easy analysis of changes in leaves, leaf exudate and shoot meristem. The design of such a synchronous system will allow the timings of gene activations and deactivations to be established in the different plant parts, before flowers are initiated.