אסיף מאגר המחקר החקלאי

Indices of water deficit in susceptible and resistant cucumbers in response to infection by cucumber mosaic virus

Year:

1991

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Volume :

119

Co-Authors:

LEVY, D., Department of Vegetable Crops, Agricultural Research Organization, The Volcani Center, Bet Dagan, 50 250, Israel
MARCO, S., Department of Virology, Agricultural Research Organization, Volcani Center, Bet Dagan, 50 250, Israel

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Abstract:

Indices of water deficit were determined under conditions of non‐limited water supply in cucumber mosaic virus (CMV)‐infected seedlings of the susceptible cv. Bet Alpha. An increase in the concentration of soluble solids, decrease of water and osmotic potentials, and increase of proline concentration were found in the CMV‐infected cotyledons. In the cv. Shimshon, which is resistant to CMV, virus infection caused only a slight change in the concentration of the soluble solids and in the osmotic potential; water potential and proline content were not affected. Concomitantly, infectivity of cotyledons by CMV was much lower in the tolerant cv. Shimshon than in the susceptible cv. Bet Alpha. The possible association of water deficit with virus‐induced growth retardation is discussed. Copyright © 1991, Wiley Blackwell. All rights reserved

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