Preference tests with collembolas on isogenic and Bt-maize

Bakonyi, Gábor; Szira, Fruzsina; Kiss, István; Villányi, Ilona; Seres, Anikó; Székacs, András

doi:10.1016/j.ejsobi.2006.06.005

Cited by 40 publications

(19 citation statements)

References 7 publications

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“…No deleterious effects on survival and reproduction of Folsomia candida were observed when fed leaves of Bt-maize expressing the Cry1Ab protein compared with leaves of non-Bt-isolines . While Bakonyi et al (2006) showed that Bt-maize was less preferred as food by Folsomia candida than near-isogenic non-Bt-maize, this effect was not observed for Heteromurus nitidus and Sinella coeca. Folsomia candida defecated 30% less around Btmaize, but did not show preference to stay on any plant material.…”

Section: Scientific Opinion On Applications For Renewal Of Authorisatmentioning

confidence: 84%

Applications (EFSA‐GMO‐RX‐MON810) for renewal of authorisation for the continued marketing of (1) existing food and food ingredients produced from genetically modified insect resistant maize MON810; (2) feed consisting of and/or containing maize MON810, including the use of seed for cultivation; and of (3) food and feed additives, and feed materials produced from maize MON810, all under Regulation (EC) No 1829/2003 from Monsanto

2009

EFS2

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SUMMARYThis document provides a scientific opinion of the Scientific Panel on Genetically Modified Organisms (GMO Panel) of the European Food Safety Authority (EFSA) on 3 applications 1 For citation purposes: Scientific Opinion of the Panel on Genetically Modified Organisms on applications (EFSA-GMO-RX-MON810) for the renewal of authorisation for the continued marketing of (1) existing food and food ingredients produced from genetically modified insect resistant maize MON810; (2) feed consisting of and/or containing maize MON810, including the use of seed for cultivation; and of (3) (1) existing food and food ingredients produced from genetically modified (GM) maize MON810 (Unique Identifier MON-ØØ81Ø-6); (2) feed consisting of and/or containing maize MON810, including the use of seed for cultivation; and of (3) food and feed additives, and feed materials produced from maize MON810, developed by Monsanto to provide resistance to lepidopteran target pests.The scopes of the 3 renewal applications cover the continued marketing of:-existing food and food ingredients produced from maize MON810 (Reference EFSA-GMO-RX-MON810 [8-1a] ) that have been placed on the market in accordance with [20-1a] );-food additives produced from maize MON810 that were authorised under Directive 89/107/EEC, and feed produced from maize MON810, i.e., feed additives lawfully placed on the market under Directive 70/524/EEC and feed materials (Reference EFSA-GMO-RX-MON810 [8-1b/20-1b] ).After the date of entry into force of the Regulation (EC) No 1829/2003, the products mentioned above were notified to the European Commission according to Articles 8 or 20 of this Regulation and subsequently included in the Community Register of GM food and feed.Maize MON810 expresses a Cry1Ab insecticidal protein, derived from Bacillus thuringiensis subsp. kurstaki, which confers protection against lepidopteran target pests such as the European corn borer (Ostrinia nubilalis) and species belonging to the genus Sesamia.In delivering its scientific opinion, the EFSA GMO The EFSA GMO Panel assessed maize MON810 with reference to the intended uses and appropriate principles described in the guidance document of the EFSA GMO Panel for the risk assessment of GM plants and derived food and feed. The scientific assessment included molecular characterisation of the inserted DNA and expression of target proteins. A comparative analysis of agronomic traits and composition was undertaken, and the safety of the new protein and the whole food/feed were evaluated with respect to potential toxicity, allergenicity and nutritional quality. An assessment of environmental impacts and the postmarket environmental monitoring plan were undertaken.Maize MON810 was generated by particle acceleration technology. Maize MON810 expresses a cry1Ab coding sequence that encodes an insecticidally active Cry1Ab protein. The molecular characterisation data established that a single insert is integrated in the maize The expression of the genes introduced by genetic modification has been su...

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Section: Scientific Opinion On Applications For Renewal Of Authorisatmentioning

confidence: 84%

Applications (EFSA‐GMO‐RX‐MON810) for renewal of authorisation for the continued marketing of (1) existing food and food ingredients produced from genetically modified insect resistant maize MON810; (2) feed consisting of and/or containing maize MON810, including the use of seed for cultivation; and of (3) food and feed additives, and feed materials produced from maize MON810, all under Regulation (EC) No 1829/2003 from Monsanto

2009

EFS2

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“…This indicated that in regard to a choice between transgenic or non-transgenic plant materials, the preference of an insect and spider mites may vary depending on plant species. Bakonyi (2006) reported that Folsomia candida preferred non-transgenic maize (Zea mays L.) to Bt-maize (producing Cry1Ab toxin) as a food source, whereas Heteromurus nitidus and Sinella coeca preferred Bt-maize. This indicates that non-targeted arthropods species react differently to the same pair of transgenic and non-transgenic plants.…”

Section: Discussionmentioning

confidence: 99%

Effects of Bt+CpTI transgenic cotton on the performance of <em>Tetranychus</em><em> turkestani</em> (Acari: Tetranychidae)

Wan

et al. 2014

Systematic and Applied Acarology

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Transgenic cotton is very effective in controlling targeted pests such as cotton bollworm (Helicoverpa armigera). However, increases in spider mite (Acari: Tetranychidae) populations have been reported in fields of transgenic cotton. The objectives of our laboratory experiments were (i) to determine host plant preference (transgenic or non-transgenic cotton) of T. turkestani females and (ii) to compare the life table parameters of T. turkestani females reared on transgenic or non-transgenic cotton. Enzyme-linked immunosorbent assays indicated that T. turkestani females reared on transgenic cotton leaves contained 14.9±0.23 μ g Bt toxic protein per gram fresh weight, about 57.4% toxin in the transgenic cotton leaves. Results of dual-choice disc tests showed that T. turkestani females preferred to feed and lay eggs on non-transgenic cotton. Food source (transgenic or non-transgenic cotton) had no significant effect on the life table parameters of T. turkestani females. We conclude that increases in the population of spider mites in fields of transgenic cotton cannot be attributed to host plant preference or to the effects of Bt toxic protein on the non-targeted arthropods life cycle. Additional studies should be done to determine if the increases are due to less insecticide application or less competition with primary insects in transgenic cotton fields.

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“…Comparing the effects of near-isogenic and Bt-maize (Bt11 and MON810 varieties), no significant differences were detected as a consequence of feeding on Bt-maize in mortality and offspring number by Clark and Coats (2006). Bakonyi et al (2006) observed about 30% less fecal pellets around the Bt-maize (MON810) than its near-isogenic counterpart. Recently, Zhang et al (2017) found no effect of Cry1Ab/Cry2Aj toxin contained maize pollen on F. candida survival, development, and reproduction.…”

Section: Introductionmentioning

confidence: 99%

“…near-isogenic maize line is provided after feeding on Bt-maize for 4 years? It was hypothesized that (i) long-term feeding has an impact on life-history traits, because of the different quality of the Bt and near-isogenic plants and (ii) a shift due to the food change will appear in life-history traits of F. candida, because this species preferred near-isogenic maize leaves in a previous experiment (Bakonyi et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

Long-Term Consumption and Food Replacement of Near-Isogenic by Bt-Maize Alter Life-History Traits of Folsomia Candida Willem 1902 (Collembola)

Szabó

Seres

Bakonyi

2017

Appl. Ecol. Env. Res.

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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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Preference tests with collembolas on isogenic and Bt-maize

Cited by 40 publications

References 7 publications

Effects of Bt+CpTI transgenic cotton on the performance of <em>Tetranychus</em><em> turkestani</em> (Acari: Tetranychidae)

Long-Term Consumption and Food Replacement of Near-Isogenic by Bt-Maize Alter Life-History Traits of Folsomia Candida Willem 1902 (Collembola)

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