Organ Formation at the Vegetative Shoot Meristem.
نویسندگان
چکیده
منابع مشابه
Shoot Meristem Formation in Vegetative Development.
The majority of the plant body is derived from the activities of groups of specialized cells, known as apical meristems, at the growing tips. In a typical flowering plant, the shoot apical meristem (SAM) gives rise to the bulk of the above-ground portion of the plant, whereas root meristems give rise to the bulk of the subterranean plant body. Of course, not all plants are typical, and numerous...
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To control morphogenesis, molecular regulatory networks have to interfere with the mechanical properties of the individual cells of developing organs and tissues, but how this is achieved is not well known. We study this issue here in the shoot meristem of higher plants, a group of undifferentiated cells where complex changes in growth rates and directions lead to the continuous formation of ne...
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The shoot apical meristem of higher plants is a self-maintaining stem cell system which gives rise to the entire above-ground part of a plant. In the past year, genetic and molecular studies have provided increasing insight into the processes of shoot meristem formation and maintenance, as well as into the relation between the apical meristem and its products.
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Overall shoot architecture in higher plants is highly dependent on the activity of embryonic and axillary shoot meristems, which are produced from the basal adaxial boundaries of cotyledons and leaves, respectively. In Arabidopsis thaliana, redundant functions of the CUP-SHAPED COTYLEDON genes CUC1, CUC2, and CUC3 regulate embryonic shoot meristem formation and cotyledon boundary specification....
متن کاملFormation and maintenance of the shoot apical meristem.
Development in higher plants is characterized by the reiterative formation of lateral organs from the flanks of shoot apical meristems. Because organs are produced continuously throughout the life cycle, the shoot apical meristem must maintain a pluripotent stem cell population. These two tasks are accomplished within separate functional domains of the apical meristem. These functional domains ...
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ژورنال
عنوان ژورنال: The Plant Cell
سال: 1997
ISSN: 1040-4651,1532-298X
DOI: 10.1105/tpc.9.7.1067