Effects of Three Vertebrate Hormones on the Growth, Development, and Reproduction of the Tomato Moth, Lacanobia Oleracea L. (Lepidoptera: Noctuidae)

Kirkbride-Smith, Anne E.; Bell, Howard A.; Edwards, John

doi:10.1897/1551-5028(2001)020<1838:eotvho>2.0.co;2

Cited by 5 publications

(7 citation statements)

References 14 publications

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“…Results are expressed as mean ± SEM. Histograms with different letters (a, b) differ significantly from one another (Kirkbride-Smith et al 2001). Injection of estradiol into B. mori pupae decreased egg production (Ogiso and Ohnishi 1986).…”

Section: Mechanisms Of Action?mentioning

confidence: 99%

“…Of terrestrial insects, few studies have addressed effects of vertebrate endocrine disruptors (Kirkbride-Smith et al 2001), although estrogen-like immunoreactivity (but not a physiological role) has been found in Bombyx mori, Manduca sexta and Sarcophaga bullata (Mechoulam et al 1984), and Lacanobia oleracea reared on artificial diet laced with estradiol have altered development (KirkbrideSmith et al 2001). For terrestrial insects, routes of entry of endocrine disruptors would most commonly be through ingestion of contaminated water and food; wound contamination may also provide a route of entry.…”

Section: Introductionmentioning

confidence: 99%

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Effects of bisphenol A in the ring-legged earwig, Euborellia annulipes

Rankin

Grosjean

2009

Ecotoxicology

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Bisphenol A is a known endocrine disruptor in vertebrates that mimics the action of estrogens by interacting with hormone receptors. It also affects reproduction and development in many invertebrate animals, though mechanisms of action are unclear. Terrestrial insects, despite their abundance and profound ecological significance, have been largely overlooked as a group that might be affected by vertebrate endocrine disrupting chemicals. We evaluated potential effects of bisphenol A on the ring-legged earwig, Euborellia annulipes, as a model for terrestrial arthropods. Dosages of 0, 0.12, 1.2 and 12 microg bisphenol A were injected over a 6 day period into newly eclosed males and newly mated (7-day) females. The lowest dosage (0.12 microg) was most effective in eliciting significant effects including reducing weight gain while increasing testis size and seminal vesicle size; higher dosages were less effective or ineffective. In females, treatment with 0.12 microg bisphenol A enhanced clutch size but higher dosages were required to affect the duration of embryogenesis in offspring of treated mothers. Hatching success and the onset of the second reproductive cycle were not affected by treatments. No gross abnormalities were observed as a result of treatment in the reproductive structures of either males or females. Similarly, injection of varying concentrations of estradiol into males enhanced testis length, though it had no effect on seminal vesicle size. Lastly, we administered bisphenol A in drinking water for up to 2 weeks. Surprisingly, as little as 1 microg/L inhibited testis growth; 100 microg/L inhibited ovarian growth.

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Section: Mechanisms Of Action?mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of bisphenol A in the ring-legged earwig, Euborellia annulipes

Rankin

Grosjean

2009

Ecotoxicology

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“…This is striking, because insects, which represent more than 75 percent of all described animal species, play important and diverse ecological roles in many environments [46]. Agonistic and antagonistic actions at the ecdysteroid receptor also undoubtedly occur in insects in response to certain insecticides and phytochemicals, causing interference with molting, but it is unclear if other arthropods are also affected [243]. Hormones regulate many behavioral and physiological processes in insects.…”

Section: Invertebratesmentioning

confidence: 99%

“…It is, however, clear that insects may also be susceptible to the effects of other EDs, including vertebrate hormones. A recent feeding experiment suggested that tomato moth (L. oleracea) larvae fed with the three vertebrate hormones thyroxine, estrogen, or testosterone experienced some interference that affected normal development and/or reproduction [243]. For example, juvenile hormones are used by insects to regulate embryogenesis, reproduction, and metamorphosis, whereas ecdysteroids mediate molting, growth, and reproduction (reviewed by [242]).…”

Section: Invertebratesmentioning

confidence: 99%

Endocrine Disruption in Wildlife: Background, Effects, and Implications

Vethaak¹,

Legler²

2013

Endocrine Disrupters

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“…Although the detected concentration levels of androgens in surface water appear to be very low (i.e., sub‐parts per billion level), it should be noted that concentrations of less than 1 ng/L were shown to be able to induce reproductive abnormalities in aquatic species [3]. Tomato moth ( Lacanobia oleracea ) larvae experienced increases in number of deformed pupae and decreases in egg production and viability when exposed to testosterone [4]. It has been suggested that testosterone can suppress the antibody‐forming cell responses in chinook salmon [5].…”

Section: Introductionmentioning

confidence: 99%

Sorption of male hormones by soils and sediments

Kim

Xiao

et al. 2007

Enviro Toxic and Chemistry

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This paper reports the sorption of two male hormones, testosterone and androstenedione, by four soil and sediment samples at both equilibrium and rate-limiting conditions. Unlike prior studies, androstenedione was studied independently of testosterone. Apparent sorption equilibrium is achieved in one to two weeks when the initial aqueous hormone concentrations (C0) at 10,000 microg/L (approximately 30% of their solubility limits [S(w)]) and two to three weeks when the C(0) is 300 microg/L (less than 1% of S(w)). The Freundlich model parameter n ranged from 0.698 to 0.899 for all soil-solute systems indicating nonlinear sorption isotherms. Isotherm nonlinearity leads to an inverse correlation between single-point organic carbon-normalized sorption distribution coefficients (K(oc)) and equilibrium androgen concentration (C(e)). When C(e)S(w) = 0.012, the log K(oc) values for testosterone and androstenedione on the various sorbents ranged from 6.18 to 6.75 and 6.83 to 6.04, respectively, compared to 6.30 to 6.80 and 6.16 to 6.92 when C(e)/S(w) = 0.004. This study suggests that male hormones may exhibit slow rates of sorption over 14 d or longer and that soils and sediments may have greater sorption distribution coefficients when concentrations fall into the ng/L range.

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Effects of Three Vertebrate Hormones on the Growth, Development, and Reproduction of the Tomato Moth, Lacanobia Oleracea L. (Lepidoptera: Noctuidae)

Cited by 5 publications

References 14 publications

Effects of bisphenol A in the ring-legged earwig, Euborellia annulipes

Effects of bisphenol A in the ring-legged earwig, Euborellia annulipes

Endocrine Disruption in Wildlife: Background, Effects, and Implications

Sorption of male hormones by soils and sediments

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