Reorganization of tobacco root plastids during arbuscule development |
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Authors: | Thomas Fester Dieter Strack Bettina Hause |
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Institution: | Leibniz-lnstitut für Pflanzenbiochemie, Abteilung Sekundirstoffwechsel, Halle, Saaie, Germany. tfester@ipb-halle.de |
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Abstract: | In the present paper we analyzed plastid populations labeled by the green fluorescent protein in non-mycorrhizal and mycorrhizal roots of tobacco (Nicotiana tahacum L.). We show by confocal laser scanning microscopy (i) a dramatic increase in these plastids in mycorrhizal roots and (ii) the formation of dense plastid networks covering the symbiotic interface of the arbuscular mycorrhiza, the arbuscule. These cytological observations point to an important role of root cortical cell plastids in the functioning of arbuscular mycorrhizal symbiosis. |
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