OBPC Symposium: Maize 2004 &; beyond-developmental and molecular genetics of embryogenesis in plants |
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Authors: | S?P?Venglat D?Xiang K?Kusshalappa W?Keller D?Palmer G?Selvara Email author" target="_blank">R?DatlaEmail author |
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Institution: | (1) Plant Biotechnology Institute, 110 Gymnasium Place, S7N 0W9 Saskatoon, Saskatchewan, Canada |
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Abstract: | Summary Embryo development is a very key phase in the life cycle of seed plants. At maturity, the embryo contains the complete machinery
to elaborate the entire plant body. While the embryogenic process is an innate feature of the zygote, gametic and somatic
cells can undergo embryogenesis under the appropriate culture conditions. Embryogenesis is a highly regulated process and
the use of mutants, especially in Arabidopsis, has allowed the identification of genes regulating pattern formation during this process. The use of such mutants has revealed
the eritical roles of auxin levels and transport in the establishment of embryo axis. Root and shoot apical meristem function
and integrity, have been defined by examination of genes involved in their identity and function. Further knowledge of the
molecular and biochemical aspects of zygotic embryogenesis should contribute to our understanding of the underlying regulatory
pathways and networks and also provide critical insights into unique totipotent features of the plant cell. |
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Keywords: | Arabidopsis auxin auxin transport gene regulation totipotency |
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