Environmental factors influencing aphid transmission of potato virus Y and potato leafroll virus

Singh, Monika; Khurana, S. M. P.; Nagaich, B. B.; Agrawal, Hari Om

doi:10.1007/bf02357888

Cited by 35 publications

(9 citation statements)

References 9 publications

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“…While the effects of pre-inoculation temperature treatments remain to be elucidated, the effects of post-inoculation temperatures can be explained by a greater rate of virus replication at higher than at a lower temperature (GOODMAN et al 1986). Regarding PLRV, my findings confirm those of SINGH et al (1988) which found that more Physalis floridana test plants became infected if they were kept at 15 than at 30 °C for 2 days before inoculation and at 30 than at 15 °C for 2 days immediately after inoculation. My results also support earlier observations made by ROBERT and RouZE-JouAN (1971) on the post-inoculation effect of temperature on the infection of potato plants with PLRV.…”

Section: Discussionsupporting

confidence: 86%

The Effects of Temperature on the Susceptibility of Potato Plants to Infection and Accumulation of Potato Leafroll Virus

Syller

1991

Journal of Phytopathology

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Temperature both before and after aphid inoculation with potato leafroll virus (PLRV) greatly influenced the susceptibility of potato plants to infection and virus accumulation, as evaluated with ELISA using cultivars with different ratings for the resistance to PLRV. Pre‐incubation at 15 compared to 27 °C increased the susceptibility of plants to infection and a subsequent PLRV accumulation. The virus was detected by ELISA in a greater proportion of plants and reached a higher concentration, when the plants were kept at 27 than at 15 °C after inoculation. The mean ELISA values obtained with PLRV‐infected plants in the 15/27 combination of the pre‐/post‐inoculation temperatures over the period 1—6 wks after inoculation were significantly higher than those in the 27/27, 15/15 and 27/15 treatments, and the values obtained in the 27/27 treatment were significantly higher than those in the 15/15 and 27/15 ones. A hypersensitive‐like intolerance reaction to PLRV occurred in the resistant cv. Irga only in the plants kept at 27 °C after inoculation.

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Section: Discussionsupporting

confidence: 86%

The Effects of Temperature on the Susceptibility of Potato Plants to Infection and Accumulation of Potato Leafroll Virus

Syller

1991

Journal of Phytopathology

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“…Several studies have also focused on analyzing viral transmission efficiency under a combination of abiotic stresses including temperature [49][50][51]. In their study, Singh and colleagues looked at the inoculation step of PVY and PLRV under different conditions of temperature, relative humidity (RH), and light.…”

Section: Impact Of Abiotic Stresses On Viral Transmissionmentioning

confidence: 99%

“…In their study, Singh and colleagues looked at the inoculation step of PVY and PLRV under different conditions of temperature, relative humidity (RH), and light. While light intensity did not seem to affect virus infection, high temperature (25-30 • C) and high RH (80-90%) increased transmission of both viruses by 30-35% [49]. Smyrnioudis and colleagues [50] highlight the role of the vector in the spread of the luteovirus Barley yellow dwarf virus (BYDV) under condition of drought and variable temperature.…”

Section: Impact Of Abiotic Stresses On Viral Transmissionmentioning

confidence: 99%

Impact of Abiotic Stresses on Plant Virus Transmission by Aphids

Munster

2020

Viruses

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Plants regularly encounter abiotic constraints, and plant response to stress has been a focus of research for decades. Given increasing global temperatures and elevated atmospheric CO2 levels and the occurrence of water stress episodes driven by climate change, plant biochemistry, in particular, plant defence responses, may be altered significantly. Environmental factors also have a wider impact, shaping viral transmission processes that rely on a complex set of interactions between, at least, the pathogen, the vector, and the host plant. This review considers how abiotic stresses influence the transmission and spread of plant viruses by aphid vectors, mainly through changes in host physiology status, and summarizes the latest findings in this research field. The direct effects of climate change and severe weather events that impact the feeding behaviour of insect vectors as well as the major traits (e.g., within-host accumulation, disease severity and transmission) of viral plant pathogens are discussed. Finally, the intrinsic capacity of viruses to react to environmental cues in planta and how this may influence viral transmission efficiency is summarized. The clear interaction between biotic (virus) and abiotic stresses is a risk that must be accounted for when modelling virus epidemiology under scenarios of climate change.

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“…M. persicae is the most efficient and important vector of PLRV but several other aphids that feed on potato crops also transmit the virus (Kennedy et al, 1962), and clones of Aphis gossypii that transmit PLRV efficiently have been reported from India (Singh et al, 1988). Particular attention has been paid to M. euphorbiae as a vector of PLRV in Scotland because infestations of this species on Scottish potato crops are often much larger than those ofM.…”

Section: Potato Virus Ymentioning

confidence: 97%

Virus transmission by aphids in potato crops

Woodford¹

1992

Netherlands Journal of Plant Pathology

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This paper reviews the contribution of vector activity and plant age to virus spread in potato crops. Determining which aphid species are vectors is particularly important for timing haulm destruction to minimize tuber infection by potato virus Y (PVY). Alate aphids of more than 30 species transmit PVY, and aphids such as Rhopalosiphum padi, that migrate in large numbers before flights of the more efficient vector, Myzus persicae, appear to be important vectors. Differences in methodology, aphid biotypes and virus strains prevent direct comparisons between estimates of vector efficiencies obtained for aphids in different countries in north western Europe.M. persicae is also the most efficient vector of potato leafroll virus (PLRV), but some clones of Macrosiphum euphorbiae transmit PLRV efficiently to Nicotiana clevelandii and potato test plants.The removal of infected plants early in the season prevents the spread of PLRV in cool regions with limited vector activity. The proportion of aphids acquiring PLRV from infected potato plants decreases with plant age, and healthy potato plants are more resistant to infection later in the season. Severe symptoms of secondary leafroll developed on progeny plants of cv. Marls Piper derived from mother plants inoculated with PLRV in June or July of the previous year. Progeny plants derived from mother plants inoculated in August showed only mild symptoms, but the concentration of PLRV in these plants was as high as that in the plants with severe symptoms.

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Environmental factors influencing aphid transmission of potato virus Y and potato leafroll virus

Cited by 35 publications

References 9 publications

The Effects of Temperature on the Susceptibility of Potato Plants to Infection and Accumulation of Potato Leafroll Virus

The Effects of Temperature on the Susceptibility of Potato Plants to Infection and Accumulation of Potato Leafroll Virus

Impact of Abiotic Stresses on Plant Virus Transmission by Aphids

Virus transmission by aphids in potato crops

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