Relationship between virus traffic and nitric oxide (NO) production in tobacco roots

Danci, Oana: Relationship between virus traffic and nitric oxide (NO) production in tobacco roots. Acta biologica Szegediensis, (53) 1. pp. 17-20. (2009)

[img] Cikk, tanulmány, mű
5317.pdf

Download (501kB)

Abstract

Nitric oxide (NO) was proved to have several roles in plant-pathogen interactions from the contribution to the local and systemic induction of defence genes to the infection signalling. The aim of this paper was to prove the involvement of NO as signalling molecule during virus infection and to point out that determination of NO levels can be used as a new method of virus detection in plants. For detection of NO generation in tobacco plants infected by potato viruses X, Y and A, 4,5 diaminofluorescein-diacetate (DAF-2DA) was used. It was found that the infected tobacco roots showed two to three times higher NO accumulation, compared to control. Our results indicated that long distance virus movement through roots occured in the stele using phloem sieve elements, but most of the viruses did not reach meristem and root cap cells. It is suggested that NO is a proper signalling molecule during virus infection and fluorescent detection of NO makes possible to demonstrate the presence of viruses within the plant tissues.

Item Type: Article
Journal or Publication Title: Acta biologica Szegediensis
Date: 2009
Volume: 53
Number: 1
Page Range: pp. 17-20
ISSN: 1588-385X
Language: angol
Heading title: Articles
Uncontrolled Keywords: Természettudomány, Biológia
Additional Information: Bibliogr.: 20. p.; Abstract
Date Deposited: 2016. Oct. 17. 09:24
Last Modified: 2018. May. 25. 11:28
URI: http://acta.bibl.u-szeged.hu/id/eprint/23003

Actions (login required)

View Item View Item