Different Ways of Formation of Root System in Plants, Maize and Flax Seedlings Taken as Examples

Different Ways of Formation of Root System in Plants, Maize and Flax Seedlings Taken as Examples Comparison of the appearance and development of lateral roots in the flax and maize seedlings has shown the way of root branching in the flax, as distinct from that in most plants. Some primordia in the flax main root did not develop immediately into lateral roots, but remained quiescent, which determines different reactions of the maize and flax root systems to experimental influences. Decapitation of the main root in the maize did not leads to a significant increase in the number of lateral roots, while in the flax, their number noticeably increased due to the development of previously quiescent primordia into lateral roots. The treatment with synthetic auxin did not induce the formation of additional primordia and lateral roots in the maize roots. In the flax, the number of primordia increased significantly and that of lateral roots increased to a somewhat lesser extent. Apparently, the development of a primordium into a lateral root proceeds in two stages and they have different regulation. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Developmental Biology Springer Journals

Different Ways of Formation of Root System in Plants, Maize and Flax Seedlings Taken as Examples

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Publisher
Kluwer Academic Publishers-Plenum Publishers
Copyright
Copyright © 2003 by MAIK “Nauka/Interperiodica”
Subject
Life Sciences; Animal Anatomy / Morphology / Histology
ISSN
1062-3604
eISSN
1608-3326
D.O.I.
10.1023/A:1026069410350
Publisher site
See Article on Publisher Site

Abstract

Comparison of the appearance and development of lateral roots in the flax and maize seedlings has shown the way of root branching in the flax, as distinct from that in most plants. Some primordia in the flax main root did not develop immediately into lateral roots, but remained quiescent, which determines different reactions of the maize and flax root systems to experimental influences. Decapitation of the main root in the maize did not leads to a significant increase in the number of lateral roots, while in the flax, their number noticeably increased due to the development of previously quiescent primordia into lateral roots. The treatment with synthetic auxin did not induce the formation of additional primordia and lateral roots in the maize roots. In the flax, the number of primordia increased significantly and that of lateral roots increased to a somewhat lesser extent. Apparently, the development of a primordium into a lateral root proceeds in two stages and they have different regulation.

Journal

Russian Journal of Developmental BiologySpringer Journals

Published: Oct 7, 2004

References

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