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REGULATION OF ROOT APICAL MERISTEM DEVELOPMENT
Annual Review of Cell and Developmental Biology, 2005The establishment of the Angiosperm root apical meristem is dependent on the specification of a stem cell niche and the subsequent development of the quiescent center at the presumptive root pole. Distribution of auxin and the establishment of auxin maxima are early formative steps in niche specification that depend on the expression and distribution ...
Keni, Jiang, Lewis J, Feldman
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Developmental Analysis of Arabidopsis Root Meristem
2018Plant postembryonic development takes place in region called meristems that represent a reserve of undifferentiated cells. In the root meristem of Arabidopsis thaliana, all tissues originate from a stem-cell niche. Stem-cell daughters undergo a finite number of cell divisions until they reach the transition zone where divisions cease and cells start to
Di Mambro, Riccardo, Sabatini, Sabrina
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Analysis of Root Meristem Size Development
2010Plant post-embryonic development takes place in the meristems. In the root of the model plant Arabidopsis thaliana, stem cells organized in a stem-cell niche in the apex of the root meristem generate transit-amplifying cells, which undergo additional division in the proximal meristem and differentiate in the elongation/differentiation zone.
Serena Perilli, SABATINI, Sabrina
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Ethylene Controls Root Meristem Production
Science, 2007In plants, undifferentiated meristem tissue provides stem cells to produce roots and shoots. The root meristem contains a few of these stem cells in a region called the quiescent center. Ortega-Martínez et al .
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Control of root meristem establishment in conifers
Physiologia Plantarum, 2018The evolution of terrestrial plant life was made possible by the establishment of a root system, which enabled plants to migrate from aquatic to terrestrial habitats. During evolution, root organization has gradually progressed from a very simple to a highly hierarchical architecture.
Federica Brunoni +2 more
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Cell cycle synchronization in plant root meristems
Methods in Cell Science, 1999The analysis of structure and metabolism of a cell at a defined phase of cell cycle is often difficult because cell cycle progression in somatic tissues is asynchronous and only a fraction of cells are cycling. An elegant solution to obtain populations of cells enriched for single stage of the cell cycle is to impose the synchrony artificially ...
J, Dolezel +3 more
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Journal of Plant Research, 2008
The plant meristems, shoot apical meristem (SAM) and root apical meristem (RAM), are unique structures made up of a self-renewing population of undifferentiated pluripotent stem cells. The SAM produces all aerial parts of postembryonic organs, and the RAM promotes the continuous growth of roots. Even though the structures of the SAM and RAM differ, the
Hiroki, Miwa +3 more
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The plant meristems, shoot apical meristem (SAM) and root apical meristem (RAM), are unique structures made up of a self-renewing population of undifferentiated pluripotent stem cells. The SAM produces all aerial parts of postembryonic organs, and the RAM promotes the continuous growth of roots. Even though the structures of the SAM and RAM differ, the
Hiroki, Miwa +3 more
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Shoot and Root Apical Meristems
2017The structure and organization of the shoot and root apical meristems is presented. Their functional zones and mechanism of functioning are described. The shoot apical meristem is presented as a dynamic structure that changes during leaf and stem formation.
Mirjana Pavlović, Ksenija Radotić
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Chromosome Aberrations and Ageing Root Meristems
Annals of Botany, 1978Changes in mitotic activity and frequency of spontaneous chromosome aberrations have been determined for primary roots of Zea mays , Pisum sativum , Vicia faba var. green Windsor and var. minor, and Allium cepa. Mitotic activity was found to decline with age in all root apices.
F.-D SEYED MOZAFFARI, P. B. GAHAN
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Origin of the epidermis in root meristems
New Phytologist, 1994SUMMARYA survey of root meristems shows that in general, closed meristems, those with separate regions generating outer and inner tissues, derive the epidermis with the cortex in monocotyledons and with the cap in dicotyledons. Open meristems, where the cells between the stelar pole and cap divide transiently producing an unstable boundary between the ...
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