Analysis of the role of COMATOSE and peroxisomal beta-oxidation in the determination of germination potential in Arabidopsis
Comparative physiological analysis of mutant Arabidopsis seeds under defined environmental conditions was used to analyse the relative contributions of components of peroxisomal beta-oxidation in the control of seed germination potential. The COMATOSE (CTS) and KAT2 loci were shown to play essential...
| Veröffentlicht in: | Journal of experimental botany. - 1985. - 57(2006), 11 vom: 15., Seite 2805-14 |
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| 1. Verfasser: | |
| Weitere Verfasser: | , , , , |
| Format: | Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2006
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| Zugriff auf das übergeordnete Werk: | Journal of experimental botany |
| Schlagworte: | Comparative Study Journal Article Research Support, Non-U.S. Gov't ATP-Binding Cassette Transporters Arabidopsis Proteins KAT2 protein, Arabidopsis Potassium Channels Potassium Channels, Voltage-Gated Adenosine Triphosphatases EC 3.6.1.- mehr... |
| Zusammenfassung: | Comparative physiological analysis of mutant Arabidopsis seeds under defined environmental conditions was used to analyse the relative contributions of components of peroxisomal beta-oxidation in the control of seed germination potential. The COMATOSE (CTS) and KAT2 loci were shown to play essential roles in regulating germination and establishment potentials, whereas LACS6 and LACS7 loci only influenced establishment following germination. The viability and desiccation tolerance of three different mutant alleles of CTS were shown to be intermediate between that of dormant and non-dormant wild-type seeds. Analysis of ttg-1 cts-1 double mutant seeds demonstrated that the cts lesion did not influence after-ripening capacity. These data demonstrate the importance of peroxisomal beta-oxidation in the control of germination potential, but suggest that breakdown of stored lipid is not an important prerequisite for germination. A function is suggested for CTS following after-ripening within pathways related to the progression of germination prior to radicle emergence |
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| Beschreibung: | Date Completed 04.12.2006 Date Revised 31.03.2022 published: Print-Electronic Citation Status MEDLINE |
| ISSN: | 1460-2431 |