Organization and Metabolism of Plastids and Mitochondria in Arbuscular Mycorrhizal Roots of <i>Medicago truncatula</i>

• Swanhild Lohse

  Leibniz-Institut für Pflanzenbiochemie, Abteilung Sekundärstoffwechsel, D–06120 Halle (Saale), Germany (S.L., W.S., C.A., D.S., T.F.); and Max-Planck-Institut für Molekulare Pflanzenphysiologie, 14476 Potsdam-Golm, Germany (J.K.)

• Willibald Schliemann

  Leibniz-Institut für Pflanzenbiochemie, Abteilung Sekundärstoffwechsel, D–06120 Halle (Saale), Germany (S.L., W.S., C.A., D.S., T.F.); and Max-Planck-Institut für Molekulare Pflanzenphysiologie, 14476 Potsdam-Golm, Germany (J.K.)

• Christian Ammer

  Leibniz-Institut für Pflanzenbiochemie, Abteilung Sekundärstoffwechsel, D–06120 Halle (Saale), Germany (S.L., W.S., C.A., D.S., T.F.); and Max-Planck-Institut für Molekulare Pflanzenphysiologie, 14476 Potsdam-Golm, Germany (J.K.)

• Joachim Kopka

  Leibniz-Institut für Pflanzenbiochemie, Abteilung Sekundärstoffwechsel, D–06120 Halle (Saale), Germany (S.L., W.S., C.A., D.S., T.F.); and Max-Planck-Institut für Molekulare Pflanzenphysiologie, 14476 Potsdam-Golm, Germany (J.K.)

• Dieter Strack

  Leibniz-Institut für Pflanzenbiochemie, Abteilung Sekundärstoffwechsel, D–06120 Halle (Saale), Germany (S.L., W.S., C.A., D.S., T.F.); and Max-Planck-Institut für Molekulare Pflanzenphysiologie, 14476 Potsdam-Golm, Germany (J.K.)

• Thomas Fester

  Leibniz-Institut für Pflanzenbiochemie, Abteilung Sekundärstoffwechsel, D–06120 Halle (Saale), Germany (S.L., W.S., C.A., D.S., T.F.); and Max-Planck-Institut für Molekulare Pflanzenphysiologie, 14476 Potsdam-Golm, Germany (J.K.)

抄録

Colonization of root cortical cells by arbuscular mycorrhizal fungi leads to marked cytological changes of plastids and mitochondria. Plastids in particular are forming tubular extensions partially connecting individual organelles in a network-like way. These cytological changes correspond to an increased need for plastid and mitochondrial products during establishment and functioning of the symbiosis. The analysis of metabolite and transcript levels in mycorrhizal and nonmycorrhizal roots from Medicago truncatula revealed concomitant changes regarding a number of metabolic pathways. Our results indicate the activation of the mitochondrial tricarboxylic acid cycle and of plastid biosynthetic pathways producing fatty acids, amino acids, and apocarotenoids. These observations provide a general overview of structural and metabolic changes of plastids and mitochondria during colonization of root cortical cells by arbuscular mycorrhizal fungi.

収録刊行物

• Plant Physiology

  Plant Physiology 139 (1), 329-340, 2005-08-26

  Oxford University Press (OUP)

キーワード

• Plant Science
• Genetics
• Physiology

詳細情報

• CRID: 1360574094037793664
• NII論文ID: 80017520575
• DOI: 10.1104/pp.105.061457
• ISSN: 15322548
• ISSN: 00320889
• Web Site: http://academic.oup.com/plphys/article-pdf/139/1/329/38098128/plphys_v139_1_329.pdf
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