Reevaluation of the potato aphid,Macrosiphum euphorbiae (Thomas), as vector of potato virus Y

1986 ◽  
Vol 63 (6) ◽  
pp. 335-340 ◽  
Author(s):  
R. P. Singh ◽  
G. Boiteau
Keyword(s):  
Potato Virus ◽  
Potato Virus Y ◽  
Macrosiphum Euphorbiae ◽  
Potato Aphid

DIFFERENCE IN THE TRANSMISSION OF PVY° TO POTATO AND TOBACCO BY THE POTATO APHID, MACROSIPHUM EUPHORBIAE (THOMAS): EFFECTS OF PROBING DURATION AND FREQUENCY

1991 ◽  
Vol 123 (4) ◽  
pp. 869-874 ◽  
Author(s):  
Gilles Boiteau ◽  
R.P. Singh
Keyword(s):  
Causal Relationship ◽  
Short Duration ◽  
Potato Virus ◽  
Potato Virus Y ◽  
Macrosiphum Euphorbiae ◽  
Tobacco Plants ◽  
Potato Aphid ◽  
Probing Behavior ◽  
Pvy Transmission ◽  
Nonpersistent Viruses

AbstractThe probing behavior of the potato aphid, Macrosiphum euphorbiae (Thomas), is significantly different on potato than on tobacco plants. The higher frequency of short-duration probes, ideal for the transmission of nonpersistent viruses, is the apparent cause for the higher rate of potato virus Y° (PVY°) transmission on tobacco than on potato. However, experimental augmentation of short inoculation probes by M. euphorbiae on potato and tobacco failed to increase PVY° transmission on either. These results demonstrate the absence of a causal relationship between variations in probing behavior of M. euphorbiae and variations in the transmissibility of PVY° by this vector on tobacco and potato.

Role of Hairy Nightshade in the Transmission of Different Potato virus Y Strains on Solanum tuberosum (L.)

2010 ◽  
Vol 11 (1) ◽  
pp. 38 ◽  
Author(s):  
Felix A. Cervantes ◽  
Juan M. Alvarez
Keyword(s):  
Potato Virus ◽  
Potato Virus Y ◽  
Green Peach Aphid ◽  
Transmission Rate ◽  
Solanum Tuberosum L ◽  
Macrosiphum Euphorbiae ◽  
Invasive Weed ◽  
Potato Plants ◽  
Tuber Necrosis

The complexity of the Potato virus Y (PVY) (Potyviridae: Potyvirus) pathosystem is affected by the presence of several virus strains that differ in their ability to produce tuber necrosis and by the presence of an alternate host that could increase the amount of inoculum in potato fields. Solanum sarrachoides (Sendtner) is an invasive weed from South America present in Pacific Northwest potato agro-ecosystems. It serves as reservoir of PVY and its most efficient vectors: the green peach aphid, Myzus persicae (Sulzer), and the potato aphid, Macrosiphum euphorbiae (Thomas). The role of S. sarracoides as vector and virus reservoir in PVY epidemiology was investigated through a series of laboratory and greenhouse experiments. We studied the symptoms produced in S. sarracoides upon infection with necrotic and non-necrotic strains of PVY and looked at the percentage of infection and titer accumulation of these strains. PVY infection in S. sarrachoides produced symptoms similar to those produced in PVY-infected potato plants. Mottling and yellowing were the main symptoms of infection observed in S. sarrachoides plants, especially by PVYO and PVYNTN infection. Greenhouse transmission studies revealed that PVY-infected S. sarrachoides increased the transmission rate of PVY necrotic strains by M. persicae. The necrotic strain PVYNTN reached higher titer in S. sarrachoides than in potato plants when compared to PVYO and PVYN:O These findings have broadened our understanding of the role and importance of S. sarrachoides in the PVY epidemiology in the potato ecosystems and could potentially be included in the development or optimization of virus management programs. Accepted for publication 15 March 2010. Published 26 May 2010.

Expression of the Tomato pot-1 Gene Confers Potato Virus Y (PVY) Resistance in Susceptible Potato Varieties

2021 ◽  
Author(s):  
Chen Zhang ◽  
Kelly A. Zarka ◽  
Daniel G. Zarka ◽  
Jonathan L. Whitworth ◽  
David S. Douches
Keyword(s):  
Potato Virus ◽  
Potato Virus Y ◽  
Potato Varieties ◽  
Pvy Resistance

Development, Survival, and Fecundity of the Potato Aphid, Macrosiphum euphorbiae (Thomas), at Constant Temperatures

1962 ◽  
Vol 94 (6) ◽  
pp. 667-671 ◽  
Author(s):  
C. A. Barlow
Keyword(s):  
Life History ◽  
Macrosiphum Euphorbiae ◽  
Potato Aphid ◽  
Influence Of Temperature ◽  
Controlled Conditions ◽  
Influence Of Temperature On

Life-history and development of Macrosiphum euphorbiae (Thomas) have been studied by Smith (1919), Patch (1925), and MacGillivray and Anderson (1958). In most of these studies, considerable variation in temperature was experienced. The effects of different constant temperatures have never been reported. The following experiments were conducted to determine the influence of temperature on development, survival, and fecundity of M. euphorbiae under closely controlled conditions.

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