Resistance to whitefly (Bemisia tabaci) in cotton (Gossypium hirsutum) in the Sudan

Sippell, David W.; Bindra, O. S.; Khalifa, Hassan

doi:10.1016/0261-2194(87)90007-x

Cited by 33 publications

(24 citation statements)

References 4 publications

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“…Still, this trichome-based resistance is compromised in young developmental stages of our BC lines due to lower type-IV trichome densities and acylsucroses production (Rodríguez-López et al, 2011). Reinforcement of these constitutive defenses by treating young BC 5 S 2 plants with MeJA might explain the observed differences in TYLCV transmission by whiteflies described here, in agreement with previous reports (Sippell et al, 1987; Walker, 1988; Snyder et al, 1998; Muigai et al, 2002; Sadasivan and Thayumanavan, 2003; Oriani and Vendramim, 2010). This increase in acylsucrose secretions is probably associated with the induction of type-IV glandular trichome density that is only present in BC 5 S 2 .…”

Section: Discussionsupporting

confidence: 93%

A Jasmonate-Inducible Defense Trait Transferred from Wild into Cultivated Tomato Establishes Increased Whitefly Resistance and Reduced Viral Disease Incidence

et al. 2016

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Whiteflies damage tomatoes mostly via the viruses they transmit. Cultivated tomatoes lack many of the resistances of their wild relatives. In order to increase protection to its major pest, the whitefly Bemisia tabaci and its transmitted Tomato Yellow Leaf Curl Virus (TYLCV), we introgressed a trichome-based resistance trait from the wild tomato Solanum pimpinellifolium into cultivated tomato, Solanum lycopersicum. The tomato backcross line BC5S2 contains acylsucrose-producing type-IV trichomes, unlike cultivated tomatoes, and exhibits increased, yet limited protection to whiteflies at early development stages. Treatment of young plants with methyl jasmonate (MeJA) resulted in a 60% increase in type-IV trichome density, acylsucrose production, and enhanced resistance to whiteflies, leading to 50% decrease in the virus disease incidence compared to cultivated tomato. Using transcriptomics, metabolite analysis, and insect bioassays we established the basis of this inducible resistance. We found that MeJA activated the expression of the genes involved in the biosynthesis of the defensive acylsugars in young BC5S2 plants leading to enhanced chemical defenses in their acquired type-IV trichomes. Our results show that not only constitutive but also these inducible defenses can be transferred from wild into cultivated crops to aid sustainable protection, suggesting that conventional breeding strategies provide a feasible alternative to increase pest resistance in tomato.

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Section: Discussionsupporting

confidence: 93%

A Jasmonate-Inducible Defense Trait Transferred from Wild into Cultivated Tomato Establishes Increased Whitefly Resistance and Reduced Viral Disease Incidence

et al. 2016

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“…The presence of undesirable volatile compounds in the Arlika squash variety was suggested to be the main cause for low attractiveness to whitefly Trialeurodes vaporariorum (Alves et al 2005(Alves et al , 2006. The presence of glandular trichomes is considered one of the main causes of leaf morphological resistance and may compromise oviposition and feeding by small sucking insects (Sippell et al 1987;Heinz and Zalom 1995;McAuslane 1996). Potential effects of trichomes on whiteflies may vary depending on trichome angle to the leaf surface, length and type, all factors potentially affecting adult oviposition, and immature attachment and feeding (Channarayappa et al 1992).…”

Section: Discussionmentioning

confidence: 99%

Characterization of antibiosis and antixenosis to the whitefly silverleaf Bemisia tabaci B biotype (Hemiptera: Aleyrodidae) in several squash varieties

Baldin

Beneduzzi

2010

J Pest Sci

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The objective of this study was to investigate the potential resistance mechanisms to Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) B biotype, in eight Cucurbita pepo varieties. Attractivity, oviposition preference, and nymphal development were evaluated under greenhouse and laboratory conditions. Variety Bianca was the least attractive to adult whiteflies in multi-choice tests. The whiteflies showed oviposition nonpreference (antixenosis) for Novita Plus, Bianca and Sandy in multi-choice test, and similar results were observed in no-choice tests with varieties Bianca, Novita, Caserta Cac and Sandy. Sandy expressed high antibiosis levels against whitefly nymphs, leading to 63.9% mortality. The high level of resistance in variety Sandy can serve as base for genetic improvement of C. pepo focusing on the development of resistant varieties to B. tabaci B biotype.

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“…Selection of the host plant may depend on several factors such as leaf architecture and color (Sippell et al 1987), leaf pubescence and trichome type and density (McAuslane 1996;Snyder et al 1998; Toscano et al 2002), cuticle thickness (Channarayappa et al 1992) and compounds that play a role in repelling or attracting whiteflies (Chermenskaya et al 2009). Subsequent stages of the whitefly development depend on the initial selection or survival of the adults.…”

Section: Parameters For Whitefly Resistance Assessmentsmentioning

confidence: 99%

Resistance to Bemisia tabaci in tomato wild relatives

et al. 2012

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Bemisia tabaci is one of the most threatening pests in agriculture, particularly in Solanaceous crops such as tomato and pepper that are cultivated in the open field. Pesticide application is often not effective and hazardous to humans and environment. The exploitation of plant natural defenses that are present in wild relatives of tomato, may offer a solution. To evaluate resistance parameters and to identify plant material with high levels of resistance, we screened a number of accessions of tomato wild relatives using three methods; a free-choice test in a screenhouse in Indonesia, a no-choice test with clip-on cages in a greenhouse and a leaf disc test in a climate-room in the Netherlands. Antibiosis resulting in low adult survival was the major component for resistance in tomato. However, other resistance component(s) may play a role as well. In some accessions there was a change in the resistance level over time. Several resistance parameters used in the different tests were well correlated. The best resistance source was an accession of Solanum galapagense, which had not been identified as being resistant in the past. This is of particular interest as this species is closely related to the cultivated tomato, which may facilitate introgression of the resistance component(s). Whitefly non-preference and resistance were associated with the presence of type IV trichomes. Other mechanisms might be involved since some accessions without type IV trichomes showed low nymphal density. The leaf disc test is a good in vitro alternative for the clip-on cage whitefly resistance screening, as shown by the high correlation between the results obtained with this test and the clip-on cage test. This offers breeders the possibility to carry out tests more efficiently.

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Resistance to whitefly (Bemisia tabaci) in cotton (Gossypium hirsutum) in the Sudan

Cited by 33 publications

References 4 publications

A Jasmonate-Inducible Defense Trait Transferred from Wild into Cultivated Tomato Establishes Increased Whitefly Resistance and Reduced Viral Disease Incidence

A Jasmonate-Inducible Defense Trait Transferred from Wild into Cultivated Tomato Establishes Increased Whitefly Resistance and Reduced Viral Disease Incidence

Characterization of antibiosis and antixenosis to the whitefly silverleaf Bemisia tabaci B biotype (Hemiptera: Aleyrodidae) in several squash varieties

Resistance to Bemisia tabaci in tomato wild relatives

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