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You searched for: Journal name Transgenic research Remove constraint Journal name: Transgenic research Subject term corn Remove constraint Subject term: corn
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1. Degradation of transgenic Bacillus thuringiensis proteins in corn tissue in response to post-harvest management practices

Author:
V. Yurchak; A. W. Leslie; G. P. Dively; W. O. Lamp; C. R. R. Hooks
Source:
Transgenic research 2021 v.30 no.6 pp. 851-865
ISSN:
0962-8819
Subject:
Bacillus thuringiensis; Ostrinia nubilalis; bioactive properties; biodegradation; corn; cover crops; crop residues; genetic engineering; no-tillage; postharvest technology; risk; soil; temperature
Abstract:
... Knowledge of the persistence of Cry proteins in transgenic corn residue after harvest is necessary to assess the ecological risk to nontarget organisms. The amount of protein remaining in crop residue declines over time by a combination of microbial decomposition and leaching, both influenced by temperature, precipitation, and the amount of residue-soil contact. Here, we investigated how long biol ...
DOI:
10.1007/s11248-021-00273-8

2. Genetic engineering to improve essential and conditionally essential amino acids in maize: transporter engineering as a reference

Author:
Md. Mahmudul Hasan; Rima Rima
Source:
Transgenic research 2021 v.30 no.2 pp. 207-220
ISSN:
0962-8819
Subject:
biosynthesis; corn; food security; genes; genetic engineering
Abstract:
... Ruminants and humans are unable to synthesize essential amino acids (EAAs) and conditionally essential amino acids (CEAAs) under normal conditions and need to acquire them from plant sources. Maize plays, as a major crop, a central role in global food security. However, maize is deficient in several EAAs and CEAAs. Genetic engineering has been successfully used to enrich the EAA content of maize t ...
DOI:
10.1007/s11248-021-00235-0

3. Meeting technical challenges for protein characterization and surrogate equivalence studies that resulted from insecticidal protein co-expression in maize event MZIR098

Author:
Frederick S. Walters; Scott Young; Gerson Graser
Source:
Transgenic research 2020 v.29 no.1 pp. 109-124
ISSN:
0962-8819
Subject:
bioactive properties; corn; genetic engineering; immunogenicity; insecticidal proteins; molecular weight; pests; plant proteins; protein sources; protein synthesis; safety assessment
Abstract:
... Safety assessment of genetically modified plants includes protein characterization to confirm the intended trait protein expression. In addition, to conduct safety tests, the large amount of purified protein needed is usually met through the use of a surrogate, microbially produced protein source. Characterization of the eCry3.1Ab and mCry3A proteins as derived from Event MZIR098 maize was challen ...
DOI:
10.1007/s11248-019-00183-w
PubMed:
31781961
PubMed Central:
PMC7000486

4. Genetically modified maize impacts in Honduras: production and social issues

Author:
Diego Maximiliano Macall; Carlos Rogelio Trabanino; Alejandro Hernández Soto; Stuart J. Smyth
Source:
Transgenic research 2020 v.29 no.5-6 pp. 575-586
ISSN:
0962-8819
Subject:
biotechnology; corn; credit; federal government; food security; genetic engineering; interviews; pesticides; surveys; Honduras
Abstract:
... Maize production is one of the most important activities for the Honduran economy, both in terms of area cultivated and food security provided. This article reports the results of a survey undertaken to gauge knowledge, perceptions, opinions, and attitudes of Honduran farmers towards genetically modified (GM) maize. Data were collected from 32 maize producers in 2018–19, of both conventional and G ...
DOI:
10.1007/s11248-020-00221-y

5. Genome editing in cereal crops: an overview

Author:
Jerlie Mhay Matres; Julia Hilscher; Akash Datta; Victoria Armario-Nájera; Can Baysal; Wenshu He; Xin Huang; Changfu Zhu; Rana Valizadeh-Kamran; Kurniawan R. Trijatmiko; Teresa Capell; Paul Christou; Eva Stoger; Inez H. Slamet-Loedin
Source:
Transgenic research 2021 v.30 no.4 pp. 461-498
ISSN:
0962-8819
Subject:
barley; climate change; corn; gene editing; genome; grain quality; nutrient content; plant architecture; rice; wheat
Abstract:
... Genome-editing technologies offer unprecedented opportunities for crop improvement with superior precision and speed. This review presents an analysis of the current state of genome editing in the major cereal crops- rice, maize, wheat and barley. Genome editing has been used to achieve important agronomic and quality traits in cereals. These include adaptive traits to mitigate the effects of clim ...
DOI:
10.1007/s11248-021-00259-6

6. The maize α-zein promoter can be utilized as a strong inducer of cellulase enzyme expression in maize kernels

Author:
Deborah Vicuna Requesens; Maria Elena Gonzalez Romero; Shivakumar P. Devaiah; Yeun-Kyung Chang; Ashley Flory; Stephen Streatfield; Rebecca Ring; Cassie Phillips; Nathan C. Hood; Cyrus Dean Marbaniang; John A. Howard; Elizabeth E. Hood
Source:
Transgenic research 2019 v.28 no.5-6 pp. 537-547
ISSN:
0962-8819
Subject:
Southern blotting; biomass; corn; endo-1,4-beta-glucanase; endosperm; genes; genetic engineering; globulins; glutelins; recombinant proteins; rice
Abstract:
... Expression of recombinant proteins in plants is a technology for producing vaccines, pharmaceuticals and industrial enzymes. For the past several years, we have produced recombinant proteins in maize kernels using only the embryo, primarily driving expression of foreign genes with the maize globulin-1 promoter. Although strong expression is obtained, these lines use only 10–12% of the seed tissue. ...
DOI:
10.1007/s11248-019-00162-1

7. A proteomic-based approach to study underlying molecular responses of the small intestine of Wistar rats to genetically modified corn (MON810)

Author:
Asmaa AL-Harbi; Sahira Lary; Martin G. Edwards; Safaa Qusti; Andrew Cockburn; Morten Poulsen; Angharad M. R. Gatehouse
Source:
Transgenic research 2019 v.28 no.5-6 pp. 479-498
ISSN:
0962-8819
Subject:
Ostrinia nubilalis; biomarkers; carbohydrate metabolism; cell death; corn; diet; epithelium; gene expression regulation; genes; genetic engineering; insect resistance; insects; lipids; midgut; protein synthesis; proteomics; rats; safety assessment; small intestine; toxicity; toxicology; toxins
Abstract:
... A genetically modified (GM) commercial corn variety, MON810, resistant to European corn borer, has been shown to be non-toxic to mammals in a number of rodent feeding studies carried out in accordance with OECD Guidelines. Insect resistance results from expression of the Cry1Ab gene encoding an insecticidal Bt protein that causes lysis and cell death in susceptible insect larvae by binding to midg ...
DOI:
10.1007/s11248-019-00157-y
PubMed:
31172414
PubMed Central:
PMC6848250

8. Consideration of familiarity accumulated in the confined field trials for environmental risk assessment of genetically modified soybean (Glycine max) in Japan

Author:
Akane Matsushita; Hidetoshi Goto; Yasuyuki Takahashi; Mai Tsuda; Ryo Ohsawa
Source:
Transgenic research 2020 v.29 no.2 pp. 229-242
ISSN:
0962-8819
Subject:
Glycine max; Japan; canola; corn; cotton; data collection; environmental assessment; genetic engineering; information sources; risk; soybeans
Abstract:
... To date, there have been 160 regulatory approvals for environmental safety in Japan for the major genetically modified (GM) crops, including corn, soybean, canola and cotton. Confined field trials (CFTs) have been conducted in Japan for all single events, which contain various traits. The accumulated information from these previously conducted CFTs, as well as the agronomic field study data from o ...
DOI:
10.1007/s11248-020-00193-z
PubMed:
31997144
PubMed Central:
PMC7067755

9. Development of dwarfish and yield-effective GM maize through passivation of bioactive gibberellin

Author:
Ziqi Chen; Yang Liu; Yuejia Yin; Qing Liu; Nan Li; Xiangguo Liu; Xia Li; Changhong Guo; Dongyun Hao
Source:
Transgenic research 2019 v.28 no.5-6 pp. 589-599
ISSN:
0962-8819
Subject:
chlorophyll; corn; dwarf cultivars; field experimentation; genes; genetic engineering; grain yield; harvest index; oxygenases; plant height; rice; wheat
Abstract:
... During the Green Revolution in the 1960s, breeding dwarf cultivars turned out to be a landmark, leading to a significant increase in the global production of wheat and rice. The most direct and effective strategy for breeding dwarf crops, among others, would be to control endogenous gibberellin (GA) levels of the crops. GA 2-oxidases are a group of 2-oxoglutarate-dependent dioxygenases that cataly ...
DOI:
10.1007/s11248-019-00172-z

10. Overexpression of the maize γ-tocopherol methyltransferase gene (ZmTMT) increases α-tocopherol content in transgenic Arabidopsis and maize seeds

Author:
Lan Zhang; Yanzhong Luo; Bin Liu; Liang Zhang; Wei Zhang; Rumei Chen; Lei Wang
Source:
Transgenic research 2020 v.29 no.1 pp. 95-104
ISSN:
0962-8819
Subject:
Arabidopsis thaliana; Escherichia coli; Glycine max; Zea mays; alpha-tocopherol; antioxidants; biochemical pathways; corn; feed industry; genes; genetic engineering; humans; livestock; tocotrienols
Abstract:
... The vitamin E family includes tocopherols and tocotrienols, which are essential lipid-soluble antioxidants necessary for human and livestock health. The seeds of many plant species, including maize, have high gamma (γ)-tocopherol but low alpha (α)-tocopherol contents; however, α-tocopherol is the most effective antioxidant. Therefore, it is necessary to optimize the tocopherol composition in plant ...
DOI:
10.1007/s11248-019-00180-z

11. Safety of Pseudomonas chlororaphis as a gene source for genetically modified crops

Author:
Jennifer A. Anderson; Jamie Staley; Mary Challender; Jamie Heuton
Source:
Transgenic research 2018 v.27 no.1 pp. 103-113
ISSN:
0962-8819
Subject:
Coleoptera; Pseudomonas chlororaphis; Zea mays; allergenicity; corn; crops; genes; genetic engineering; genetically modified plants; insecticidal properties; pests; safety assessment; toxicity
Abstract:
... Genetically modified crops undergo extensive evaluation to characterize their food, feed and environmental safety prior to commercial introduction, using a well-established, science-based assessment framework. One component of the safety assessment includes an evaluation of each introduced trait, including its source organism, for potential adverse pathogenic, toxic and allergenic effects. Several ...
DOI:
10.1007/s11248-018-0061-6
PubMed:
29427161
PubMed Central:
PMC5847145

12. The Romanian experience and perspective on the commercial cultivation of genetically modified crops in Europe

Author:
Mihael Cristin Ichim
Source:
Transgenic research 2019 v.28 no.1 pp. 1-7
ISSN:
0962-8819
Subject:
European Union; corn; genes; herbicide resistance; insects; markets; soybeans; Romania
Abstract:
... Romania was the third country in Europe and the tenth in the world, to commercially adopt genetically modified crops in 1999, only 3 years after they were first marketed globally. Half a million hectares of transgenic herbicide resistant soybean and insect resistant maize were grown in Romania during an uninterrupted 17-year period. After several years of continued declining area, the commercial c ...
DOI:
10.1007/s11248-018-0095-9

13. Assessment of potential impacts associated with gene flow from transgenic hybrids to Mexican maize landraces

Author:
Bill Duncan; Elisa Leyva-Guerrero; Todd Werk; Duška Stojšin; Baltazar M. Baltazar; Silverio García-Lara; Mariana Zavala-López; Juan Manuel de la Fuente-Martínez; Chen Meng
Source:
Transgenic research 2019 v.28 no.5-6 pp. 509-523
ISSN:
0962-8819
Subject:
backcrossing; center of origin; commercialization; corn; gene flow; genetic engineering; herbicide resistance; insects; introgression; landraces; phenotype; plant response; seeds; transgenes; Mexico
Abstract:
... Genetically modified (GM) maize has been grown and safely consumed on a global scale since its commercialization in 1996. However, questions have been raised about the potential impact that GM maize could have on native maize landraces in Mexico, which is the center of origin and diversity of maize. This research was conducted to evaluate potential changes to maize landraces in an unlikely event o ...
DOI:
10.1007/s11248-019-00160-3
PubMed:
31250247
PubMed Central:
PMC6848245

14. Assessment of the potential for gene flow from transgenic maize (Zea mays L.) to eastern gamagrass (Tripsacum dactyloides L.)

Author:
Moon-Sub Lee; Eric K. Anderson; Duška Stojšin; Marc A. McPherson; Baltazar Baltazar; Michael J. Horak; Juan Manuel de la Fuente; Kunsheng Wu; James H. Crowley; A. Lane Rayburn; D. K. Lee
Source:
Transgenic research 2017 v.26 no.4 pp. 501-514
ISSN:
0962-8819
Subject:
Tripsacum dactyloides; Zea mays; corn; cross pollination; environmental assessment; females; gene flow; genetic engineering; glyphosate; habitats; herbicide resistance; hybrids; inflorescences; interspecific hybridization; males; pollen; polymerase chain reaction; risk; risk assessment; seedlings; seeds; transgenes; transgenic plants; wild relatives; Illinois
Abstract:
... Eastern gamagrass (Tripsacum dactyloides L.) belongs to the same tribe of the Poaceae family as maize (Zea mays L.) and grows naturally in the same region where maize is commercially produced in the USA. Although no evidence exists of gene flow from maize to eastern gamagrass in nature, experimental crosses between the two species were produced using specific techniques. As part of environmental r ...
DOI:
10.1007/s11248-017-0020-7
PubMed:
28466411
PubMed Central:
PMC5504203

15. Crop plants with improved culture and quality traits for food, feed and other uses

Author:
Fabien Nogué; Philippe Vergne; Anne-Marie Chèvre; Jean-Eric Chauvin; Oumaya Bouchabké-Coussa; Annabelle Déjardin; Elisabeth Chevreau; Laurence Hibrand-Saint Oyant; Marianne Mazier; Pierre Barret; Emmanuel Guiderdoni; Christophe Sallaud; Séverine Foucrier; Pierre Devaux; Peter M. Rogowsky
Source:
Transgenic research 2019 v.28 no.Supplement 2 pp. 65-73
ISSN:
0962-8819
Subject:
Arabidopsis; Brachypodium; Brassica napus; Physcomitrella; Populus; apples; bioeconomics; corn; disease resistance; genome; horses; plant architecture; plant reproduction; potatoes; research projects; rice; salt tolerance; starch; sustainable agriculture; tomatoes; viruses; wheat
Abstract:
... The large French research project GENIUS (2012–2019, https://www6.inra.genius-project_eng/) provides a good showcase of current genome editing techniques applied to crop plants. It addresses a large variety of agricultural species (rice, wheat, maize, tomato, potato, oilseed rape, poplar, apple and rose) together with some models (Arabidopsis, Brachypodium, Physcomitrella). Using targeted mutagene ...
DOI:
10.1007/s11248-019-00135-4

16. Expression of endogenous proteins in maize hybrids in a multi-location field trial in India

Author:
Linga R. Gutha; Divakar Purushottam; Aruna Veeramachaneni; Sarita Tigulla; Vikas Kodappully; Chandana Enjala; Hitendrasinh Rajput; Jennifer Anderson; Bonnie Hong; Jean Schmidt; Shveta Bagga
Source:
Transgenic research 2018 v.27 no.4 pp. 331-342
ISSN:
0962-8819
Subject:
actin; corn; crops; developmental stages; enzyme-linked immunosorbent assay; field experimentation; genotype; glyceraldehyde-3-phosphate dehydrogenase; growing season; hybrids; leaves; models; peptide elongation factors; plant tissues; safety assessment; transgenic plants; India
Abstract:
... Genetically modified (GM) crops undergo large scale multi-location field trials to characterize agronomics, composition, and the concentration of newly expressed protein(s) [herein referred to as transgenic protein(s)]. The concentration of transgenic proteins in different plant tissues and across the developmental stages of the plant is considered in the safety assessment of GM crops. Reference o ...
DOI:
10.1007/s11248-018-0077-y

17. Plant characterization of genetically modified maize hybrids MON-89Ø34-3 × MON-88Ø17-3, MON-89Ø34-3 × MON-ØØ6Ø3-6, and MON-ØØ6Ø3-6: alternatives for maize production in Mexico

Author:
Oscar Heredia Díaz; José Luis Aldaba Meza; Baltazar M. Baltazar; Germán Bojórquez Bojórquez; Luciano Castro Espinoza; José Luis Corrales Madrid; Juan Manuel de la Fuente Martínez; Héctor Abel Durán Pompa; José Alonso Escobedo; Armando Espinoza Banda; José Antonio Garzón Tiznado; Juvencio González García; José Luis Guzmán Rodríguez; Jesús Ignacio Madueño Martínez; José Luis Martínez Carrillo; Chen Meng; Francisco Javier Quiñones Pando; Enrique Rosales Robles; Ignacio Ruiz Hernández; José Elías Treviño Ramírez; Hugo Raúl Uribe Montes; Francisco Zavala García
Source:
Transgenic research 2017 v.26 no.1 pp. 135-151
ISSN:
0962-8819
Subject:
biotechnology; corn; corn ears; cost effectiveness; crops; ecoregions; environmental assessment; farmers; genetic background; genetic engineering; grain yield; herbicide resistance; hybrids; insect pests; lodging; meta-analysis; phenotype; risk; risk assessment; seedlings; transgenic plants; vigor; weed control; Mexico
Abstract:
... Environmental risk assessment (ERA) of genetically modified (GM) crops is a process to evaluate whether the biotechnology trait(s) in a GM crop may result in increased pest potential or harm to the environment. In this analysis, two GM insect-resistant (IR) herbicide-tolerant maize hybrids (MON-89Ø34-3 × MON-88Ø17-3 and MON-89Ø34-3 × MON-ØØ6Ø3-6) and one herbicide-tolerant GM hybrid (MON-ØØ6Ø3-6) ...
DOI:
10.1007/s11248-016-9991-z
PubMed:
27771867
PubMed Central:
PMC5243880

18. Coexpression of octopine and succinamopine Agrobacterium virulence genes to generate high quality transgenic events in maize by reducing vector backbone integration

Author:
Nagesh Sardesai; Stephen Foulk; Wei Chen; Huixia Wu; Emily Etchison; Manju Gupta
Source:
Transgenic research 2018 v.27 no.6 pp. 539-550
ISSN:
0962-8819
Subject:
corn; genetic engineering; octopine; operon; plasmids; toxins; virulence
Abstract:
... Agrobacterium-mediated transformation is a complex process that is widely utilized for generating transgenic plants. However, one of the major concerns of this process is the frequent presence of undesirable T-DNA vector backbone sequences in the transgenic plants. To mitigate this deficiency, a ternary strain of A. tumefaciens was modified to increase the precision of T-DNA border nicking such th ...
DOI:
10.1007/s11248-018-0097-7

19. Effects of transgenic cry1Ie maize on non-lepidopteran pest abundance, diversity and community composition

Author:
Jingfei Guo; Kanglai He; Shuxiong Bai; Tiantao Zhang; Yunjun Liu; Fuxin Wang; Zhenying Wang
Source:
Transgenic research 2016 v.25 no.6 pp. 761-772
ISSN:
0962-8819
Subject:
Bacillus thuringiensis; community structure; corn; multidimensional scaling; pests; proteins; species diversity; toxins; transgenic plants; variance
Abstract:
... Non-lepidopteran pests are exposed to, and may be influenced by, Bt toxins when feeding on Bt maize that express insecticidal Cry proteins derived from Bacillus thuringiensis (Bt). In order to assess the potential effects of transgenic cry1Ie maize on non-lepidopteran pest species and ecological communities, a 2-year field study was conducted to compare the non-lepidopteran pest abundance, diversi ...
DOI:
10.1007/s11248-016-9968-y

20. Engineered maize as a source of astaxanthin: processing and application as fish feed

Author:
Jürgen Breitenbach; Marilise Nogueira; Gemma Farré; Changfu Zhu; Teresa Capell; Paul Christou; Gunther Fleck; Ulfert Focken; Paul D. Fraser; Gerhard Sandmann
Source:
Transgenic research 2016 v.25 no.6 pp. 785-793
ISSN:
0962-8819
Subject:
Oncorhynchus mykiss; astaxanthin; color; corn; enantiomers; ethanol; feces; feed formulation; feed supplements; fish feeds; fish fillets; oils; pigmentation; raw materials; transgenic plants; trout; zeaxanthin
Abstract:
... Astaxanthin from a transgenic maize line was evaluated as feed supplement source conferring effective pigmentation of rainbow trout flesh. An extraction procedure using ethanol together with the addition of vegetal oil was established. This resulted in an oily astaxanthin preparation which was not sufficiently concentrated for direct application to the feed. Therefore, a concentration process invo ...
DOI:
10.1007/s11248-016-9971-3