Viviparous Leaves Produced by Somatic Activation of an Inactive Cytokinin-Synthesizing Gene
1991; American Association for the Advancement of Science; Volume: 254; Issue: 5036 Linguagem: Inglês
10.1126/science.254.5036.1364
ISSN1095-9203
AutoresJ Estruch, Els Prinsen, Harry Van Onckelen, Jeff Schell, Angelo Spena,
Tópico(s)Plant Molecular Biology Research
ResumoTobacco plants that are somatic mosaics for expression of a cytokinin-synthesizing gene have viviparous leaves. Such a formation of shoots in an abnormal position represents a significant deviation from the usual organization of the plant body where a central axis produces shoots only in the axils of lateral leaf appendages and according to a precise phyllotactic pattern. This report links vivipary to the expression of a gene whose product is involved in the synthesis of the phytohormone cytokinin.
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