Academic Journal
Differential Expression of Eight Chitinase Genes in Medicago truncatula Roots During Mycorrhiza Formation, Nodulation, and Pathogen Infection
| العنوان: | Differential Expression of Eight Chitinase Genes in Medicago truncatula Roots During Mycorrhiza Formation, Nodulation, and Pathogen Infection |
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| المؤلفون: | Peter Salzer, Athos Bonanomi, Katinka Beyer, Regina Vögeli-Lange, Roger A. Aeschbacher, Jürg Lange, Andres Wiemken, Dongjin Kim, Douglas R. Cook, Thomas Boller |
| المصدر: | Molecular Plant-Microbe Interactions, Vol 13, Iss 7, Pp 763-777 (2000) |
| بيانات النشر: | The American Phytopathological Society, 2000. |
| سنة النشر: | 2000 |
| المجموعة: | LCC:Microbiology LCC:Botany |
| مصطلحات موضوعية: | chalcone synthase, trehalase, Microbiology, QR1-502, Botany, QK1-989 |
| الوصف: | Expression of eight different chitinase genes, representing members of five chitinase classes, was studied in Medicago truncatula roots during formation of arbuscular mycorrhiza with Glomus intraradices, nodulation with Rhizobium meliloti, and pathogen attack by Phytophthora megasperma f. sp. medicaginis, Fusarium solani f. sp. phaseoli (compatible interactions with root rot symptoms), Ascochyta pisi (compatible, symptomless), and F. solani f. sp. pisi (incompatible, nonhost interaction). In the compatible plant-pathogen interactions, expression of class I, II, and IV chitinase genes was enhanced. The same genes were induced during nodulation. Transcripts of class I and II chitinase genes accumulated transiently during early stages of the interaction, and transcripts of the class IV chitinase gene accumulated in mature nodules. The pattern of chitinase gene expression in mycorrhizal roots was markedly different: Expression of class I, II, and IV chitinase genes was not enhanced, whereas expression of three class III chitinase genes, with almost no basal expression, was strongly induced. Two of these three (Mtchitinase III-2 and Mtchitinase III-3) were not induced at all in interactions with pathogens and rhizobia. Thus, the expression of two mycorrhiza-specific class III chitinase genes can be considered a hallmark for the establishment of arbuscular mycorrhiza in Medicago truncatula. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1943-7706 0894-0282 |
| Relation: | https://doaj.org/toc/0894-0282; https://doaj.org/toc/1943-7706 |
| DOI: | 10.1094/MPMI.2000.13.7.763 |
| URL الوصول: | https://doaj.org/article/da1c8980da704f299e80c270b51d9308 |
| رقم الانضمام: | edsdoj.1c8980da704f299e80c270b51d9308 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 19437706 08940282 |
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| DOI: | 10.1094/MPMI.2000.13.7.763 |