Long-term consumption and food replacement of near-isogenic by BT-maize alter life-history traits of Folsomia Candida willem 1902 (Collembola)

B. Szabó, A. Seres, G. Bakonyi

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1 Citation (Scopus)

Abstract

The long-term effect of Bt-maize on soil animals is an important, repeatedly discussed, but a poorly investigated topic. The collembolan Folsomia candida is a recognised representative of the mesofauna in the laboratory ecotoxicological experiments. The following questions were addressed in the present experiment: (i) is there any consequence on some life-history traits of F. candida, if Bt-maize is provided as food after about 4 years of feeding instead of the near-isogenic counterpart, and (ii) is there any effect on life-history traits, if the near-isogenic and Bt-toxin containing food is changed? Long-term (40-48 generations) feeding on Bt-maize leaf caused alterations in some life-history traits (larger eggs, higher growth rate both in length and width). On the other hand, reproduction (egg size, the total number of eggs, the number of eggs in the first clutch) was influenced, if Bt-toxin containing maize was replaced by its near-isogenic counterpart. Based on currently available methodologies, it is not possible to judge, whether observed differences are due to the Bt-toxin or another component of the maize leaf.

Original languageEnglish
Pages (from-to)1275-1286
Number of pages12
JournalApplied Ecology and Environmental Research
Volume15
Issue number4
DOIs
Publication statusPublished - Jan 1 2017

Fingerprint

Folsomia candida
Collembola
life history trait
replacement
maize
life history
corn
food
toxin
toxins
egg
egg size
long term effects
leaves
experiment
consumption
methodology
animal
soil
animals

Keywords

  • Body growth
  • Cry1Ab toxin
  • Egg size
  • MON810 maize
  • Sublethal effect

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Agronomy and Crop Science

Cite this

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abstract = "The long-term effect of Bt-maize on soil animals is an important, repeatedly discussed, but a poorly investigated topic. The collembolan Folsomia candida is a recognised representative of the mesofauna in the laboratory ecotoxicological experiments. The following questions were addressed in the present experiment: (i) is there any consequence on some life-history traits of F. candida, if Bt-maize is provided as food after about 4 years of feeding instead of the near-isogenic counterpart, and (ii) is there any effect on life-history traits, if the near-isogenic and Bt-toxin containing food is changed? Long-term (40-48 generations) feeding on Bt-maize leaf caused alterations in some life-history traits (larger eggs, higher growth rate both in length and width). On the other hand, reproduction (egg size, the total number of eggs, the number of eggs in the first clutch) was influenced, if Bt-toxin containing maize was replaced by its near-isogenic counterpart. Based on currently available methodologies, it is not possible to judge, whether observed differences are due to the Bt-toxin or another component of the maize leaf.",
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AU - Seres, A.

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AB - The long-term effect of Bt-maize on soil animals is an important, repeatedly discussed, but a poorly investigated topic. The collembolan Folsomia candida is a recognised representative of the mesofauna in the laboratory ecotoxicological experiments. The following questions were addressed in the present experiment: (i) is there any consequence on some life-history traits of F. candida, if Bt-maize is provided as food after about 4 years of feeding instead of the near-isogenic counterpart, and (ii) is there any effect on life-history traits, if the near-isogenic and Bt-toxin containing food is changed? Long-term (40-48 generations) feeding on Bt-maize leaf caused alterations in some life-history traits (larger eggs, higher growth rate both in length and width). On the other hand, reproduction (egg size, the total number of eggs, the number of eggs in the first clutch) was influenced, if Bt-toxin containing maize was replaced by its near-isogenic counterpart. Based on currently available methodologies, it is not possible to judge, whether observed differences are due to the Bt-toxin or another component of the maize leaf.

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