• We are sorry, but NCBI web applications do not support your browser and may not function properly. More information
Logo of plntphysLink to Publisher's site
Plant Physiol. Aug 1996; 111(4): 975–985.
PMCID: PMC160966

A Spatial Analysis of Physiological Changes Associated with Infection of Cotyledons of Marrow Plants with Cucumber Mosaic Virus.


Changes in host primary metabolism associated with the compatible interaction between cucumber mosaic virus and cotyledons of the marrow plant (Cucurbita pepo L.) have been localized, first by measuring activities of key enzymes in infected and uninfected regions of the cotyledon, and second by histochemical techniques applied to tissue prints of the infected region. A series of progressive metabolic changes occurs within the expanding infected lesion. Virus replication and the synthesis of viral protein at the periphery creates a strong sink demand associated with increased activities of anaplerotic enzymes, increased photosynthesis, and starch accumulation. Inside the lesion, when the synthesis of virus has declined, photosynthesis is reduced, starch is mobilized, and the emphasis of metabolism is shifted toward glycolysis and mitochondrial respiration. These changes are associated spatially with the onset of chlorosis. A decrease in total protein synthesis in this inner zone could be instrumental in some or all of these changes, leading to symptoms of viral infection.

Full Text

The Full Text of this article is available as a PDF (3.1M).

Selected References

These references are in PubMed. This may not be the complete list of references from this article.
  • Boccard F, Baulcombe DC. Infectious in vitro transcripts from amplified cDNAs of the Y and Kin strains of cucumber mosaic virus. Gene. 1992 May 15;114(2):223–227. [PubMed]
  • Palukaitis P, Roossinck MJ, Dietzgen RG, Francki RI. Cucumber mosaic virus. Adv Virus Res. 1992;41:281–348. [PubMed]
  • PLAUT GW, SUNG SC. Diphosphopyridine nucleotide isocitric dehydrogenase from animal tissues. J Biol Chem. 1954 Mar;207(1):305–314. [PubMed]
  • Rathmell WG, Sequeira L. Soluble peroxidase in fluid from the intercellular spaces of tobacco leaves. Plant Physiol. 1974 Feb;53(2):317–318. [PMC free article] [PubMed]
  • Wang D, Maule AJ. Inhibition of host gene expression associated with plant virus replication. Science. 1995 Jan 13;267(5195):229–231. [PubMed]

Articles from Plant Physiology are provided here courtesy of American Society of Plant Biologists


Related citations in PubMed

See reviews...See all...

Cited by other articles in PMC

See all...


Recent Activity

Your browsing activity is empty.

Activity recording is turned off.

Turn recording back on

See more...