Occurrence of potato yellowing virus in naranjilla (Solanum quitoense Lam.) in Ecuador

Ramos, Karla Lisboa; Yeturu, Sivaprasad; Guevara, Fiama; Ochoa-Corona, F. M.; Viera, William; Flores, Francisco

doi:10.1007/s42161-019-00479-0

Cited by 6 publications

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References 2 publications

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“…One hybrid with S. hirtum (Figure 3B) was asymptomatic but it also resulted positive for CaLso and the others showed curling leaves and yellowish (Figure 3G and H), which could indicate that these hybrids had more genetic contribution from S. hirtum because this species was susceptible to the disease. In the case of hybrids with S. hyporhodium, most of them were asymptomatic showing green leaves and normal fruiting but they result positive to CaLso; nevertheless, a few showed inward curve edge leaves and yellowing of the edges (Figure 3C and D), but these symptoms could also be associated to the presence of virus (Ramos et al, 2020) thus more research to determine mixed infections is need. Although this disease has been named as purple top, in the case of S. quitoense hybrids, no purple coloration was observed in the foliar area, and because the fruiting was normal, it could infer they act like host plant how was mentioned in other studies in fruit crops (Liefting et al, 2008b).…”

Section: Symptoms In Naranjilla (Solanum Quitoense)mentioning

confidence: 99%

Symptomatology associated with “Purple top”, an emerging disease of solanaceous fruit species

Viera¹,

Viteri²,

Cedeño³

et al. 2022

Rev. Ceres

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Purple top" is an emerging disease that affects solanaceous crops, reported mainly on Solanum tuberosum (potato).Additionally, Bactericera cockerelli has been reported as the insect vector of Candidatus Liberibacter solanacearum (CaLso), a pathogen that has been associated with this disease. However, the information about this disease in Andean fruit species such as Solanum betaceum (tree tomato), S. quitoense (naranjilla) and Physalis peruviana (cape gooseberry) is almost nil. This study was carried out in the Tumbaco Experimental Farm of INIAP to describe the phenotypic symptoms caused by this disease. Molecular diagnosis by PCR method was carried out to diagnose the causal agent associated with the symptomatology. The main symptoms observed were purple color leaves, smaller apical leaves, inward curvature edge leaves, over-sprouting, yellowish and stopped plant growth; however there also were asymptomatic plants. P. peruviana was the most susceptible species because showed 100% of incidence. CaLso was identified as the causal agent associated with this disease. These results contribute to understanding the expression of this disease in Andean fruit crops. However, more studies related to epidemiology, diagnostic methods, mixed infections, vector-pathogen interaction and disease control are required in order to generate information that allows a complete knowledge of this pest.

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Section: Symptoms In Naranjilla (Solanum Quitoense)mentioning

confidence: 99%