GMO Research
Abstract: In the past 10 years, sequestration of Cry toxins and transfer to offspring has been indicated in three insect species in laboratory studies. This work directly demonstrates the sequestration and intergenerational transfer of Cry1F by the parents of the aphidophagous coccinellid predator, Harmonia axyridis, to its offspring. Recently emerged adults (10 individual couples/cage/treatment) were …
Abstract: The behavior of the two-spotted spider mite, Tetranychus urticae Koch and the predatory mite Phytoseiulus persimilis A.-H. was investigated in laboratory experiments with transgenic Bt-eggplants, Solanum melongena L., producing the Cry3Bb toxin and corresponding isogenic, non-transformed eggplants. In bitrophic experiments, dual-choice disc tests were conducted to reveal the effects of transgenic eggplants on host …
Abstract: Hatching rhythms of eggs banks are important processes because they favor species co-existence and promote resilience of ecosystems after natural disturbances. Anthropogenic stressors can disrupt such natural hatching dynamics. This work examines the effects of concentrations ranging from 1 to 8 mg l−1 of a commercial glyphosate-based formulation (Sulfosato Touchdown®) on the hatching dynamics …
Abstract: Research on non-target effects of transgenic crop plants has focused primarily on bitrophic, tritrophic and indirect effects of entomotoxins from Bacillus thuringiensis, but little work has considered intergenerational transfer of Cry proteins. This work reports a lepidopteran (Chlosyne lacinia) taking up a Bt entomotoxin when exposed to sublethal or low concentrations, transferring the entomotoxin …
Abstract: It is generally assumed that zooplankton can recolonize lakes that have been exposed to pesticides, via their dormant egg banks. Hitherto, few studies have evaluated the relative importance of dormant egg bank recruitment in the re-establishment of zooplankton communities in the presence of pesticide. This study investigated the effects of commercial products Bratt® (a.i. …
Abstract: Premise of the study. In India and elsewhere, transgenic Bt eggplant ( Solanum melongena ) has been developed to reduce insect herbivore damage, but published studies of the potential for pollen-mediated, crop- to- wild gene fl ow are scant. This information is useful for risk assessments as well as in situ conservation strategies for …
Abstract: Although planting of genetically modified (GM) crops has topped 148 million ha. worldwide, direct consumption of GM foods remains extremely rare. The obstacles to GM foods are highly varied and they can provide windows into important cultural dynamics. India’s heated controversy over its would-be first GM food—Bt brinjal (eggplant)—is driven not only by common …
Abstract: This study aimed to evaluate the embryotoxicity and genotoxicity of pesticide commercial formulations widely used in soybean crops through the Micronucleus (MN) test and other Nuclear Abnormalities (NAs) in erythrocytes of broad-snouted caiman (Caiman latirostris), exposed by topical application through the eggshell. Embryos were exposed (during all incubation: 70 days approximately) to sub-lethal concentrations …
Abstract: Research purpose. Examine under conditions in vitro effect of aqueous extract of GM roundup resistant soybean compared with soy classical breeding activity propionic acid bacteria are used in starters in the manufacture of hard cheeses with a long shelf life, and the use of transgenic soybeans in feeding chicks and laying hens with the …
Abstract: With the wide adoption of transgenic Bacillus thuringiensis (Bt) cotton, the incidence of bollworm has reduced significantly, but secondary pests such as cotton spider mites have become serious problems in Bt cotton fields. The objective of the present study was to investigate the underlying mechanism of increased incidence of secondary pests in Bt cotton. …
Abstract: Laboratory feeding studies were carried out to determine the effects of the Bacillus thuringiensis(Berliner) CrylAb toxin on developmental time and mortality of Chrysoperla carnea (Stephens) larvae. A bioassay technique was developed that allowed for incorporation of the CrylAb toxin into a liquid diet that was then encapsulated within small paraffin spheres. Because only 2nd …
Abstract: A full life-cycle (240 days) bioassay using the terrestrial snail, Cantareus aspersus, allowing exposure during embryogenesis and/or the growth and reproduction phases, was used to assess the effects of Bypass®, a glyphosate-based herbicide (GlyBH), on a range of endpoints, including parameters under endocrine control. As a positive control, a mixture (R-A) made of diquat …
Abstract: The size of the Mexican overwintering population of monarch butterflies has decreased over the last decade. Approximately half of these butterflies come from the U.S. Midwest where larvae feed on common milkweed. There has been a large decline in milkweed in agricultural fields in the Midwest over the last decade. This loss is coincident …
Abstract: Glyphosate (Roundup) is one of the most commonly used broad-spectrum herbicides with little to no hazard to animals, man, or the environment. Due to its widespread use, there is continuous contamination of the environment in both soil and water with this herbicide. There is a paucity of long-term exposure studies with sublethal concentrations of …
Abstract: The aim of this work was to investigate the effects of glyphosate on the antioxidant system, as well as the neurotoxic effects on the larvae of Rhamdia quelen. A completely randomized design was implemented with the eggs of silver catfish distributed in 48 containers with 300 mL of water, which were subdivided randomly into …
Abstract: The responses of five North American frog species that were exposed in an aqueous system to the original formulation of Roundup were compared. Carefully designed and un-confounded laboratory toxicity tests are crucial for accurate assessment of potential risks from the original formulation of Roundup to North American amphibians in aquatic environments. The formulated mixture …
Abstract: Research purpose: Detecting the presence of unidentified factor transgenic roundup resistant soybeans by method biological tests. Object and research methods: Ciliates – Tetrahymena pyriformis, after boiling water extract of soybeans and whole plant GM soybeans and non GM soy, aqueous extract of yolks and egg whites of chickens were fed GM soy (experiment) and …
Abstract: Few ecotoxicological studies have used life table analysis to evaluate the toxicity of pesticides on beneficial organisms. This study is the first report of the effect of the herbicide glyphosate on a predator insect, Chrysoperla externa, using a demographic approach. This predator is associated to soybean pests and has a potential role as a …
Abstract: We present the long-term goals and research activities by collaborators of the ‘fishENCODE’ project, part of the global “ONE HEALTH Epigenomics Educational Initiative” (1). The goals of fishENCODE are to study the intergenerational epigenetic changes and adverse health effects to fish caused by endocrine disrupting chemicals (EDCs) such as the metal cadmium (Cd) and …
Abstract: The farming of animals for human medical and other commercial/industrial purposes is being intensified through two new biotechnologies. One is genetic engineering that involves the splicing of alien genes into target animal embryos to create ‘transgenic’ animals, or the deletion of certain genes to create ‘knockout’ genetically modified animals. The other is cloning, that …
Abstract: Survivals of Plodia interpunctella larvae with MON 810 maize leaves contained feed, Cry1-resistant stocks – consist of 200 imagos – were collected in June, 2001. Larvae were feed on PIdb feed contained ~1.4 ppm (this slightly higher than the Cry1Ab toxin in fresh maize stem) truncated Bacillus thuringiensis toxin (Cry1Ab) plus maize leaves originated …
