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Comparative studies of compatible and incompatible pepper–Tobamovirus interactions and the evaluation of effects of 24-epibrassinolide

Janeczko, A. and Dziurka, M. and Gullner, Gábor and Kocurek, M. and Rys, M. and Tóbiás, István and Barna, Balázs (2018) Comparative studies of compatible and incompatible pepper–Tobamovirus interactions and the evaluation of effects of 24-epibrassinolide. PHOTOSYNTHETICA, 56 (3). pp. 763-775. ISSN 0300-3604

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Abstract

The aim of study was to gain a deeper knowledge about local and systemic changes in photosynthetic processes and sugar production of pepper infected by Obuda pepper virus (ObPV) and Pepper mild mottle virus (PMMoV). PSII efficiency, reflectance, and gas exchange were measured 48 and/or 72 h after inoculation (hpi). Sugar accumulation was checked 72 hpi and 20 d after inoculation (as a systemic response). Inoculation of leaves with ObPV led to appearance of hypersensitive necrotic lesions (incompatible interaction), while PMMoV caused no visible symptoms (compatible interaction). ObPV (but not PMMoV) lowered F v /F m (from 0.827 to 0.148 at 72 hpi). Net photosynthesis decreased in ObPV-infected leaves. In ObPV-inoculated leaves, the accumulation of glucose, fructose, and glucose-6-phosphate was accompanied with lowered sucrose, malt oheptose, nystose, and trehalose cont ents. PMMoV inoculation increased the contents of glucose, maltose, and raffi nose in the inoculated leaves, while glucose-6-phos phate accummulated in upper leaves.

Item Type: Article
Subjects: S Agriculture / mezőgazdaság > S1 Agriculture (General) / mezőgazdaság általában
SWORD Depositor: MTMT SWORD
Depositing User: MTMT SWORD
Date Deposited: 30 May 2017 06:57
Last Modified: 10 Sep 2018 14:02
URI: http://real.mtak.hu/id/eprint/54165

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