Evaluation of Commercial Potato Cultivars for Resistance to the Tuber Necrotic Strain of Potato Virus Y

Cloete, M.; Mabasa, K.G.; Mulabisana, J.; Visser, Adriaan; Rakuambo, J.; Netshifhehe, S.

doi:10.17660/actahortic.2013.1007.26

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“…The virus was propagated and maintained in tobacco plants. This strain was successfully used to screen commercial cultivars for resistance to PVY NTN (Cloete et al 2013).…”

Section: Virusmentioning

confidence: 99%

Journal of Plant Protection Research

Yazdi¹,

Mulabisana²,

Prinsloo³

et al. 2018

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The tuber necrotic strain of Potato virus Y (PVY NTN ) causes widespread disease and has severe negative effects on the growth and yields of plants, especially those of the Solanaceae family. The consequences of residual toxicity and non-biodegradation of synthetic chemicals and pollution of the environment has led to investigations into new non-toxic and biological treatments to control plant viral diseases. Ethanolic extracts of Bowiea volubilis (bulbs), Cotyledon orbiculata (leaves), Gomphocarpus fruticosus (leaves), Merwilla plumbea (dry and fresh bulbs), Nerium oleander (leaves), and the fruits and leaves of Strophanthus speciosus, were evaluated against PVY NTN in vivo and in vitro. At a concentration of 20 mg • ml −1 , ethanolic extracts of Strophanthus speciosus (leaves) and fruits (50 mg • ml −1 ) significantly reduced the expression of PVY NTN symptoms on tobacco plants in vitro without affecting the normal growth and development of the plant. Similarly, at 50 mg • ml −1 , N. oleander, C. orbiculata and B. volubilis (fresh bulbs) and S. speciousus leaves at 20 mg • ml −1 extracts showed significant differences in PVY NTN symptoms in the in vivo experiment. Strophanthus speciosus leaf and fruit extracts showed significant inhibition in the in vitro and in vivo assays and demonstrated that S. speciosus has potential to be used as an antiphytoviral treatment.

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“…The virus was propagated and maintained in tobacco plants. This strain was successfully used to screen commercial cultivars for resistance to PVY NTN (Cloete et al 2013).…”

Section: Virusmentioning

confidence: 99%

Journal of Plant Protection Research

Yazdi¹,

Mulabisana²,

Prinsloo³

et al. 2018

View full text Add to dashboard Cite

show abstract

Evaluation of Commercial Potato Cultivars for Resistance to the Tuber Necrotic Strain of Potato Virus Y

Cited by 1 publication

References 0 publications

Journal of Plant Protection Research

Journal of Plant Protection Research

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