Carbohydrate partitioning and sugar signalling in Cauliflower mosaic virus-infected turnip and Arabidopsis

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JournalPhysiological and molecular plant pathology
DatePublished - Aug 2005
Issue number2
Volume67
Number of pages9
Pages (from-to)83-91
Original languageEnglish

Abstract

We analyzed the correlation between the development of symptoms, Virus titre and carbohydrate levels in turnip and Arabiclopsis during infection with four isolates of Cauliflower mosaic virus (CaMV). Infection did not significantly affect sugar levels in source leaves except at the very late stages (28 d.p.i.), but induced a three-fold but short lived increase in sink leaves. Titres of severe isolates were greater than mild isolates, but we observed no obvious correlation between Sugar levels and symptom appearance. In wild-type Arabidopsis, infection did not stimulate increased sugar levels, but did so in a Mutant, cnr-160, which shows altered growth-response to high carbon and low nitrogen. These results do not support a direct role for sugar-mediated control of symptom development during virus infection. (c) 2005 Elsevier Ltd. All rights reserved.

    Research areas

  • caulimovirus, plant virus, signalling mutants, sugar repression, sugar signalling, CARBON CATABOLITE REPRESSION, TRANSGENIC POTATO PLANTS, GLUCOSE REPRESSION, GENE-EXPRESSION, MOVEMENT PROTEIN, SACCHAROMYCES-CEREVISIAE, CHALCONE SYNTHASE, MELON PLANTS, YEAST, TOBACCO

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