Effect of day length and light intensity on 2-tridecanone levels and resistance inLycopersicon hirsutum f.glabratum toManduca sexta

Kennedy, George G.; Yamamoto, R. T.; Dimock, Michael B.; Williams, William G.; Bordner, Jon

doi:10.1007/bf00990303

Cited by 68 publications

(59 citation statements)

References 11 publications

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“…The greater feeding damage to unshaded plants could be due to higher G. boliviana abundance on unshaded tropical soda apple plants (Table 1) and/or the adaptation of G. boliviana to tropical soda apple plant defenses. For instance, defensive trichomes on tropical soda apple are larger and denser on unshaded plants (Diaz et al 2011), similar to other solanaceous plants (Kennedy et al 1981;Franca & Tingey 1994). These defensive trichomes are detrimental to most phytophagous insects; however, to G. boliviana larvae, trichomes are essential structures that must be present for a plant to be a suitable host (Gandolfo 2000).…”

Section: Influence Of Sun and Shade Conditions Onmentioning

confidence: 61%

Differential Performance of Tropical Soda Apple and Its Biological Control Agent Gratiana boliviana (Coleoptera: Chrysomelidae) in Open and Shaded Habitats

et al. 2011

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Section: Influence Of Sun and Shade Conditions Onmentioning

confidence: 61%

Differential Performance of Tropical Soda Apple and Its Biological Control Agent Gratiana boliviana (Coleoptera: Chrysomelidae) in Open and Shaded Habitats

et al. 2011

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“…Firstly, the exudate production of plants within a particular accession may be variable both in time and space; several authors have shown the strong influence of external conditions, such as daylength and light intensity, on 2-tridecanone levels ( Kennedy et al, 1981 ) and trichome density ( Good and Snyder, 1985). Secondly, the variation in exudate production between accessions may be relevant for breeding varieties better adapted to biological control.…”

Section: Resultsmentioning

confidence: 99%

Tomato stem trichomes and dispersal success ofPhytoseiulus persimilis relative to its preyTetranychus urticae

Haren

Steenhuis²,

Sabelis

et al. 1987

Exp Appl Acarol

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Disclaimer/Complaints regulationsIf you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating your reasons. In case of a legitimate complaint, the Library will make the material inaccessible and/or remove it from the website. Please Ask the Library: http://uba.uva.nl/en/contact, or a letter to: Library of the University of Amsterdam, Secretariat, Singel 425, 1012 WP Amsterdam, The Netherlands. You will be contacted as soon as possible. Tomato varieties used at present for commercial production in Dutch glasshouses have a high density of glandular trichomes on the stem, but a very low density on the leaves, The two-spotted spider mite, Tetranychus urticae Koch, and the predatory mite, Phytoseiulus persimilis AthiasHenriot, usually disperse from leaf to leaf via the stem, thereby incurring high risks of entrapment (and death) in the exudate of the glandular trichomes. These risks have been quantified on the tomato cv. 'Turbo' and an accession of Lycopersicon peruvianum almost free of glandular trichomes. The possible consequences for biological control are discussed and new perspectives for predator release strategies and for plant breeding are considered.

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“…Por exemplo, as espécies de tomate silvestre, similares às cultivadas, conservam os genes envolvidos na biossíntese de potentes defesas químicas que lhes conferem resistência a uma grande variedade de insetos. Lycopersicon hirsutum f. glabratum tem sido classificado como altamente resistente ao ataque de numerosos insetos, entre eles Tuta absoluta (Saravia et al, 1984;Gray et al, 1999), Manduca sexta (Kennedy et al, 1981;Fery & Kennedy, 1987), Phtorimaea operculella, Spodoptera exigua e Heliothis armigera (Juvik & Stevens, 1982).…”

Section: Introductionunclassified

Papel da 2-tridecanona e dos tricomas glandulares tipo VI na resistência do tomateiro a Tuta absoluta

Gilardón

Pocoví

Hernández

et al. 2001

Pesq. agropec. bras.

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Resumo _ O metabólito secundário 2-tridecanona, secretado pelos tricomas glandulares tipo VI das folhas de tomateiro silvestre, Lycopersicon hirsutum L., confere-lhe resistência a uma grande variedade de insetos, inclusive a traça-do-tomateiro, Tuta absoluta (Meyrick). O objetivo do trabalho foi avaliar a concentração de 2-tridecanona, a densidade de tricomas glandulares tipo VI e o grau de infestação da traça-do-tomateiro na cultivar suscetível Uco Plata (Lycopersicon esculentum Mill.), na linhagem resistente PI 134417 (L. hirsutum f. glabratum) e em suas progênies F 1 e F 2 . Foram avaliadas ainda as possíveis associações entre a concentração de 2-tridecanona, a densidade de tricomas glandulares tipo VI e o grau de infestação da traça-do-tomateiro. O grau médio de infestação da traça-do-tomateiro em Uco Plata foi significativamente superior ao obtido em PI 134417. Ainda que a concentração de 2-tridecanona tenha sido significativamente superior no parental resistente, a presença deste metabólito somente explicaria parcialmente a resistência (R 2 = 8,17%). Não se detectaram diferenças significativas na densidade de tricomas tipo VI entre o parental suscetível e o resistente. Este comportamento ocorreu independentemente do conteúdo de 2-tridecanona e do grau de infestação da traça-do-tomateiro.Termos para indexação: Lycopersicon hirsutum, herbívoros, infestação, metabólicos, resistência a pragas. Role of 2-tridecanone and type VI glandular trichome on tomato resistance to Tuta absolutaAbstract _ The secondary metabolite 2-tridecanone, secreted by the type VI glandular trichomes present in the leaves of Lycopersicon hirsutum L., make it resistant to a great variety of insects, including the tomato pinworm, Tuta absoluta (Meyrick). The 2-tridecanone concentration, the type VI glandular trichome densities and the pinworm infestation degree were evaluated on the Lycopersicon esculentum Mill. susceptible cultivar Uco Plata, on the Lycopersicon hirsutum f. glabratum resistant accession PI 134417 and on their F 1 and F 2 . The mean infestation degree with pinworm larvae was significantly higher in Uco Plata than in PI 134417. The 2-tridecanone concentration was significantly higher in the resistant parent, but the presence of this metabolite could only partially account for the resistance (R 2 = 8.17%). No significant differences were detected in the type VI glandular trichomes densities between the susceptible and resistant parents. This trait was independent of the 2-tridecanone level and the pinworm infestation degree.

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Effect of day length and light intensity on 2-tridecanone levels and resistance inLycopersicon hirsutum f.glabratum toManduca sexta

Cited by 68 publications

References 11 publications

Differential Performance of Tropical Soda Apple and Its Biological Control Agent Gratiana boliviana (Coleoptera: Chrysomelidae) in Open and Shaded Habitats

Differential Performance of Tropical Soda Apple and Its Biological Control Agent Gratiana boliviana (Coleoptera: Chrysomelidae) in Open and Shaded Habitats

Tomato stem trichomes and dispersal success ofPhytoseiulus persimilis relative to its preyTetranychus urticae

Papel da 2-tridecanona e dos tricomas glandulares tipo VI na resistência do tomateiro a Tuta absoluta

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