Plant Development: Early Events in Lateral Root Initiation
نویسندگان
چکیده
منابع مشابه
Transcript profiling of early lateral root initiation.
At the onset of lateral root initiation in Arabidopsis thaliana, the phytohormone auxin activates xylem pole pericycle cells for asymmetric cell division. However, the molecular events leading from auxin to lateral root initiation are poorly understood, in part because the few responsive cells in the process are embedded in the root and are thus difficult to access. A lateral root induction sys...
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Lateral root formation can be divided into two major phases: pericycle activation and meristem establishment. In Arabidopsis, the first lateral root initiation event is spatially and temporally asynchronous and involves a limited number of cells in the xylem pericycle. To study the molecular regulation during pericycle activation, we developed a lateral root-inducible system. Successive treatme...
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Lateral root development in Arabidopsis provides a model for the study of hormonal signals that regulate postembryonic organogenesis in higher plants. Lateral roots originate from pairs of pericycle cells, in several cell files positioned opposite the xylem pole, that initiate a series of asymmetric, transverse divisions. The auxin transport inhibitor N-1-naphthylphthalamic acid (NPA) arrests l...
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Recent studies in the model plant Arabidopsis provide new insight into the regulation of root architecture, a key determinant of nutrient- and water-use efficiency in crops. Lateral root (LR) primordia originate from a subset of pericycle founder cells. Sophisticated mass-spectroscopy-based techniques have been used to map the sites of biosynthesis of auxin and its distribution in Arabidopsis s...
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Running head: Lateral root initiation by local nitrate in maize 1 2 *Corresponding authors: 3 Frank Hochholdinger 4 Institute of Crop Science and Resource Conservation (INRES) 5 Crop Functional Genomics (CFG) 6 University of Bonn 7 Friedrich-Ebert-Allee 144 8 53113 Bonn, Germany 9 Tel.: +49 228 73 60334 10 Email: [email protected] 11 Chunjian Li 12 Department of Plant Nutrition 13 China...
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ژورنال
عنوان ژورنال: Current Biology
سال: 2010
ISSN: 0960-9822
DOI: 10.1016/j.cub.2010.09.010