Mechanisms of resistance to potato leafhopper,Empoasca fabae (Harris), in potato

Medeiros, Ane Hackbart; Tingey, Ward M.; Jong, Walter S. De

doi:10.1007/bf02870204

Cited by 11 publications

(6 citation statements)

References 31 publications

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“…Similarly, significant increase in TD was observed in resistant lines. Reports indicated that trichome can defence against bacterial pathogens by several means such as reducing and/or hindering the water film formation on the leaf surface, making difficult to germinate spore and subsequent bacterial multiplication (Nicks & Rubiales 2002;Medeiros et al 2004;Kang et al 2010). Moreover, Rhouma et al (2013) reported that resistant olive hybrids were characterised by a high number of trichomes in comparison with susceptible cultivars for olive leaf spot disease.…”

Section: Discussionmentioning

confidence: 99%

Association of morphological and biochemical features of mulberry lines with resistance to bacterial leaf spot

Banerjee

Chattopadhyay

Saha

et al. 2014

Archives Of Phytopathology And Plant Protection

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Xanthomonas campestris pv. mori causes bacterial leaf spot (BLS) of mulberry (Morus spp.) worldwide. Twenty mulberry lines with contrasting response to BLS showed significant (p < 0.01) variation between resistant and susceptible groups for stomata frequency (SF), trichome density (TD), total soluble sugar (TSS) and polyphenol (PP) content, while non-significant for chlorophyll content. Heritability (broad-sense) estimates obtained from the variance component analysis were high (≥0.72) for these traits. The disease severity index values of the lines were significantly negatively correlated with TD (r = −0.66; p < 0.01), TSS (r = −0.73; p < 0.01) and PP (r = −0.61; p < 0.01), while positively correlated with SF (r = 0.65; p < 0.01). The cluster analysis was based on highly significant four variables and DSI values, and classified the lines into two major clusters. The resistant lines that come under cluster-I had high TD, TSS and PP, while those in susceptible category had high SF in cluster-II. These findings suggest that direct selection for SF, TD, TSS and PP will be effective for development of host resistance against BLS in mulberry.

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Section: Discussionmentioning

confidence: 99%

Association of morphological and biochemical features of mulberry lines with resistance to bacterial leaf spot

Banerjee

Chattopadhyay

Saha

et al. 2014

Archives Of Phytopathology And Plant Protection

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“…Moreover, resistance factors to the most damaging bacteria, virus, and root-nod nematodes, as well as traits linked to vigour, have to be researched ( Hawkes 1958 ). Finally, the impact of pests on yields should be studied as some resistant hybrids suffer more yield losses, even though pest densities are higher on susceptible varieties ( De Medeiros et al 2004 ).…”

Section: Discussionmentioning

confidence: 99%

Resistance of WildSolanumAccessions to Aphids and Other Potato Pests in Quebec Field Conditions

Fréchette

Bejan

Lucas

et al. 2010

Journal of Insect Science

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Two experiments were done to determine the susceptibility of six wild potato accessions to the aphids Macrosiphum euphorbiae (Thomas) (Hemiptera: Aphididae) and Myzus persicae (Sulzer). Densities of aphid colonies were compared between caged Solanum pinnatisectum Dunal (Solanales: Solanaceae), S. polyadenium Greenmam, S. tarijense Hawkes, S. infundibuliforme Philippi, S. oplocense Hawkes, and S. stoloniferum Schlechted and Bouché, and the commercially cultivated potato plant S. tuberosum L. cv. Désirée. Moreover the susceptibility of S. polyadenium and S. tarijense to the Colorado potato beetle Leptinotarsa decemlineata (Say) (Coleoptera: Chrlysomelidae), the potato flea beetle Epitrix cucumeris (Harris), and the potato leafhopper Empoasca fabae (Harris) (Hemiptera: Cicadellidae) was compared to that of S. tuberosum cv. Désirée in the field. Results indicated that S. polyadenium and S. tarijense were more resistant to M. persicae than S. pinnatisectum and the commercially cultivated S. tuberosum cv. Désirée. Solanum polyadenium was more resistant to aphids than S. tarijense in 2004, but not in 2005. Moreover, S. polyadenium and S. tarijense were more resistant than S. tuberosum cv. Désirée to L. decemlineata, E. cucumeris and E. fabae.

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“…The complex of symptoms caused by the leafhopper leads to reduced growth and reproduction of plants. Depending on the stage of plant development, in heavily infested fields up to 75% the yield can be lost (Backus et al 2005;Cook et al 2004;Medeiros et al 2004). E. fabae has become a major pest with the introduction of modern synthetic insecticides.…”

Section: Impacts On Production Lossesmentioning

confidence: 99%

The Potato Crop

2020

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Mechanisms of resistance to potato leafhopper,Empoasca fabae (Harris), in potato

Cited by 11 publications

References 31 publications

Association of morphological and biochemical features of mulberry lines with resistance to bacterial leaf spot

Association of morphological and biochemical features of mulberry lines with resistance to bacterial leaf spot

Resistance of WildSolanumAccessions to Aphids and Other Potato Pests in Quebec Field Conditions

The Potato Crop

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