The Biology of Trichoplusia ni (Lepidoptera: Noctuidae). I. Life History and Behavior1

Shorey, H. H.; Andres, L. A.; Hale, R. L.

doi:10.1093/aesa/55.5.591

Cited by 67 publications

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“…This intramolecular addition is not stereochemically precise because products resulting from sulfur addition on either side of the double bond are found in nearly equal abundance ( Figure 2G). The polymorphism in glucosinolate hydrolysis products in Arabidopsis has significant impact on herbivory by T. ni (the cabbage looper), a generalist-feeding lepidopteran whose larvae attack members of the Brassicaceae as well as a host of other plant species (Shorey et al, 1962). In this study, T. ni larvae fed significantly more on Col ϫ Ler RIL that produced nitriles than on those that produced isothiocyanates (Figure 8).…”

Section: Discussionmentioning

confidence: 67%

The Arabidopsis Epithiospecifier Protein Promotes the Hydrolysis of Glucosinolates to Nitriles and Influences Trichoplusia ni Herbivory

et al. 2001

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Glucosinolates are anionic thioglucosides that have become one of the most frequently studied groups of defensive metabolites in plants. When tissue damage occurs, the thioglucoside linkage is hydrolyzed by enzymes known as myrosinases, resulting in the formation of a variety of products that are active against herbivores and pathogens. In an effort to learn more about the molecular genetic and biochemical regulation of glucosinolate hydrolysis product formation, we analyzed leaf samples of 122 Arabidopsis ecotypes. A distinct polymorphism was observed with all ecotypes producing primarily isothiocyanates or primarily nitriles. The ecotypes Columbia (Col) and Landsberg erecta (L er ) differed in their hydrolysis products; therefore, the Col ؋ L er recombinant inbred lines were used for mapping the genes controlling this polymorphism. The major quantitative trait locus (QTL) affecting nitrile versus isothiocyanate formation was found very close to a gene encoding a homolog of a Brassica napus epithiospecifier protein (ESP), which causes the formation of epithionitriles instead of isothiocyanates during glucosinolate hydrolysis in the seeds of certain Brassicaceae. The heterologously expressed Arabidopsis ESP was able to convert glucosinolates both to epithionitriles and to simple nitriles in the presence of myrosinase, and thus it was more versatile than previously described ESPs. The role of ESP in plant defense is uncertain, because the generalist herbivore Trichoplusia ni (the cabbage looper) was found to feed more readily on nitrile-producing than on isothiocyanate-producing Arabidopsis. However, isothiocyanates are frequently used as recognition cues by specialist herbivores, and so the formation of nitriles instead of isothiocyanates may allow Arabidopsis to be less apparent to specialists.

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Section: Discussionmentioning

confidence: 67%

The Arabidopsis Epithiospecifier Protein Promotes the Hydrolysis of Glucosinolates to Nitriles and Influences Trichoplusia ni Herbivory

et al. 2001

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“…A reduction in male pupal weight may represent a fitness cost. T. ni females are reported to mate multiple times (Shorey et al, 1962;Ward and Landolt, 1995), as a result a male's reproductive success will depend on his mating frequency which may be reduced in smaller males highly resistant to Bt. For example, both Cry1Ac-resistant H. armigera males (Zhao et al, 2008) and H. zea Cry1Ac-resistant (Anilkumar et al, 2008) males mated less frequently than susceptible males.…”

Section: Time To Pupationmentioning

confidence: 99%

Genetic variation in fitness parameters associated with resistance to Bacillus thuringiensis in male and female Trichoplusia ni

Janmaat

Myers

2011

Journal of Invertebrate Pathology

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“…The mean and standard errors of length, width and weight were, respectively, 17.0 ± 0.07 mm, 4.7 ± 0.04 mm and 0.22 ± 0.00 g. These results indicate that this species, in the pupal stage, does not exhibit the same sexual dimorphism as Pseudoplusia includens (Walker) (Shour & Sparks 1981) and Trichoplusia ni (Hübner) (Shorey et al 1962, Henneberry & Kishaba 1966 do, where the males were heavier.…”

Section: Resultsmentioning

confidence: 75%

Biological aspects of Autoplusia egena (Guenée) (Lepidoptera: Noctuidae, Plusiinae)

Specht¹,

Vogt²,

Corseuil³

2007

Neotrop. Entomol.

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Neotropical Entomology 36(1): 001-004 (2007) Aspectos Biológicos de Autoplusia egena (Guenée) (Lepidoptera: Noctuidae, Plusiinae) RESUMO -Autoplusia egena (Guenée) é uma mariposa distribuída em todo continente americano. Suas lagartas alimentam-se de plantas pertencentes a diversas famílias incluindo cultivos de grande importância como soja e feijão. Objetivando contribuir para o conhecimento da sua biologia em laboratório, considerando duração e morfometria de cada fase de desenvolvimento, foi realizada uma criação laboratorial a 25 ± 1°C, 70 ± 10% UR e 14h de fotofase. As lagartas foram alimentadas com folhas de feijão-preto e os adultos com solução de mel a 10%. Os resultados expressos pela média (± EP) para os períodos de cada estágio, em dias, foram: ovo 3,0 ± 0,00; lagarta 15,7 ± 1,25; pré-pupa 1,9 ± 0,05; pupa 8,8 ± 0,09 e adulta: longevidade 12,1 ± 0,95, pré-oviposição 5,4 ± 0,50, oviposição 6,3 ± 1,10 e pós-oviposição 1,4 ± 0,87. As lagartas passaram por cinco ínstares cujos valores médios das larguras das cápsulas cefálicas, em mm foram 0,302 ± 0,001; 0,500 ± 0,003; 0,854 ± 0,008; 1,424 ± 0,011 e 2,744 ± 0,053. As pupas apresentaram comprimento, largura e peso médio de 16,965 ± 0,003 mm, 4,674 ± 0,040 mm e 0,217 ± 0,003 g, respectivamente.PALAVRAS-CHAVE: Desenvolvimento, inseto, morfometria, Phaseolus vulgaris, falsa-medideira ABSTRACT -Autoplusia egena (Guenée) is a moth distributed throughout the Western hemisphere. The larvae have already been found feeding on several different plant families, including important crops such soybeans and beans. To contribute to the knowledge of its biology in laboratory conditions, and considering the duration and the morphometry of each development stage, a laboratorial rearing was accomplished at 25 ± 1°C, 70 ± 10% RH and 14h photophase. The larvae were fed with black bean leaves and the adults were fed with a honey solution at 10%. The results, expressed by the mean (± SE), for the periods of each stage were: egg 3.0 ± 0.00 d; larva 15.7 ± 1.25 d; pre-pupa 1.9 ± 0.05 d; pupa 8.8 ± 0.09 d and adult: longevity 12.1 ± 0.95 d, pre-oviposition 5.4 ± 0.50 d, oviposition 6.3 ± 1.10 d and post-oviposition 1.4 ± 0.87 d. The larvae went through fi ve instars, for which the mean width of the cephalic capsules were 0.302 ± 0.001 mm; 0.500 ± 0.003 mm; 0.854 ± 0.008 mm; 1.424 ± 0.011 mm and 2.744 ± 0.053 mm. The average length, width, and weight of the pupae were 16.965 ± 0.003 mm, 4.674 ± 0.040 mm and 0.217 ± 0.003 g, respectively.

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The Biology of Trichoplusia ni (Lepidoptera: Noctuidae). I. Life History and Behavior1

Cited by 67 publications

References 0 publications

The Arabidopsis Epithiospecifier Protein Promotes the Hydrolysis of Glucosinolates to Nitriles and Influences Trichoplusia ni Herbivory

The Arabidopsis Epithiospecifier Protein Promotes the Hydrolysis of Glucosinolates to Nitriles and Influences Trichoplusia ni Herbivory

Genetic variation in fitness parameters associated with resistance to Bacillus thuringiensis in male and female Trichoplusia ni

Biological aspects of Autoplusia egena (Guenée) (Lepidoptera: Noctuidae, Plusiinae)

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