Cytokinin-Auxin Crosstalk in the Gynoecial Primordium Ensures Correct Domain Patterning1[OPEN]
نویسندگان
چکیده
Christina Joy Müller , Emma Larsson, Lukáš Spíchal, and Eva Sundberg Department of Plant Biology, Swedish University of Agricultural Sciences, Uppsala BioCenter and Linnean Centre for Plant Biology in Uppsala, 75007 Uppsala, Sweden Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Olomouc, CZ-78371, Czech Republic
منابع مشابه
Cytokinin-Auxin Crosstalk in the Gynoecial Primordium Ensures Correct Domain Patterning.
The Arabidopsis (Arabidopsis thaliana) gynoecium consists of two congenitally fused carpels made up of two lateral valve domains and two medial domains, which retain meristematic properties and later fuse to produce the female reproductive structures vital for fertilization. Polar auxin transport (PAT) is important for setting up distinct apical auxin signaling domains in the early floral meris...
متن کاملPolar auxin transport is essential for medial versus lateral tissue specification and vascular-mediated valve outgrowth in Arabidopsis gynoecia.
Although it is generally accepted that auxin is important for the patterning of the female reproductive organ, the gynoecium, the flow as well as the temporal and spatial actions of auxin have been difficult to show during early gynoecial development. The primordium of the Arabidopsis (Arabidopsis thaliana) gynoecium is composed of two congenitally fused, laterally positioned carpel primordia b...
متن کاملAuxin and cytokinin act during gynoecial patterning and the development of ovules from the meristematic medial domain.
The gynoecium is the female reproductive structure of flowering plants, and is the site of ovule and seed development. The gynoecium is critical for reproductive competence and for agricultural productivity in many crop plants. In this review we focus on molecular aspects of the development of the Arabidopsis thaliana gynoecium. We briefly introduce gynoecium structure and development and then ...
متن کاملCytokinin response factors integrate auxin and cytokinin pathways for female reproductive organ development.
The developmental programme of the pistil is under the control of both auxin and cytokinin. Crosstalk between these factors converges on regulation of the auxin carrier PIN-FORMED 1 (PIN1). Here, we show that in the triple transcription factor mutant cytokinin response factor 2 (crf2) crf3 crf6 both pistil length and ovule number were reduced. PIN1 expression was also lower in the triple mutant...
متن کاملCytokinin regulates root meristem activity via modulation of the polar auxin transport.
Plant development is governed by signaling molecules called phytohormones. Typically, in certain developmental processes more than 1 hormone is implicated and, thus, coordination of their overlapping activities is crucial for correct plant development. However, molecular mechanisms underlying the hormonal crosstalk are only poorly understood. Multiple hormones including cytokinin and auxin have...
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