Polyamine metabolism in maize tumors induced by Ustilago maydis
Alterations occurring in polyamine metabolism of maize in tumors formed during the interaction with the biotrophic pathogenic fungus Ustilago maydis were analyzed. During the process, a striking increase in maize polyamine biosynthesis, mainly free and conjugated putrescine occurred in the tumors in...
| Veröffentlicht in: | Plant physiology and biochemistry : PPB. - 1991. - 46(2008), 8-9 vom: 09. Aug., Seite 805-14 |
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| 1. Verfasser: | |
| Weitere Verfasser: | , , , |
| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2008
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| Zugriff auf das übergeordnete Werk: | Plant physiology and biochemistry : PPB |
| Schlagworte: | Journal Article Research Support, Non-U.S. Gov't RNA, Plant Oxidoreductases Acting on CH-NH Group Donors EC 1.5.- Carboxy-Lyases EC 4.1.1.- Ornithine Decarboxylase EC 4.1.1.17 arginine decarboxylase mehr... |
| Zusammenfassung: | Alterations occurring in polyamine metabolism of maize in tumors formed during the interaction with the biotrophic pathogenic fungus Ustilago maydis were analyzed. During the process, a striking increase in maize polyamine biosynthesis, mainly free and conjugated putrescine occurred in the tumors induced by the fungus, and in the neighbor plant tissues. This increase correlated with an activation mainly of Adc, Samdc1, Zmsamdc2 and Zmsamdc3, but not of Zmodc, Zmspds1 and Zmspds2 genes, and an elevation in arginine decarboxylase activity, confirming a predominant role of this enzyme in the process. Evidences for a possible contribution of spermidine and spermine degradation by polyamine oxidase activity, probably related to cell wall stiffening or lignification during tumor growth, were also obtained. It is suggested that polyamines, mainly putrescine, might play an active role in the pathosystem maize-U. maydis |
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| Beschreibung: | Date Completed 06.10.2008 Date Revised 13.12.2023 published: Print-Electronic CommentIn: Plant Signal Behav. 2009 Apr;4(4):310-2. - PMID 19794848 Citation Status MEDLINE |
| ISSN: | 1873-2690 |
| DOI: | 10.1016/j.plaphy.2008.05.012 |