scholarly journals A potential and novel type transgenic corn plant for control of the Corn Borer

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Zhen Yue ◽  
Xiangrui Li ◽  
Enyan Zhang ◽  
Xiaoxia Liu ◽  
Zhangwu Zhao
Keyword(s):  
Transgenic Corn ◽  
Corn Plant ◽  
Corn Borer

Marker-free transgenic corn plant production through co-bombardment

2009 ◽  
Vol 28 (11) ◽  
pp. 1655-1668 ◽  
Author(s):  
N. Shiva Prakash ◽  
R. Bhojaraja ◽  
S. K. Shivbachan ◽  
G. G. Hari Priya ◽  
T. K. Nagraj ◽  
...  
Keyword(s):  
Plant Production ◽  
Transgenic Corn ◽  
Corn Plant ◽  
Marker Free

Toxicity of Transgenic Corn Tissues Expressing Insecticidal Protein of Bacillus thuringiensis Berliner to Southwestern Corn Borer (Lepidoptera: Crambidae) in the Laboratory

2005 ◽  
Vol 40 (3) ◽  
pp. 307-315 ◽  
Author(s):  
Kerry C. Allen ◽  
Henry N. Pitre
Keyword(s):  
Bacillus Thuringiensis ◽  
Tissue Type ◽  
Bt Corn ◽  
Transgenic Corn ◽  
Laboratory Studies ◽  
Negative Effects ◽  
Diatraea Grandiosella ◽  
Corn Borer ◽  
Bt Toxin ◽  
Southwestern Corn Borer

Laboratory studies were conducted to compare the response of Diatraea grandiosella (Dyar) larvae to lyophilized transgenic corn tissue expressing the Cry1Ab endotoxin protein of Bacillus thuringiensis (Berliner) (Bt) with conventional corn tissue incorporated into a BioServ™ artificial diet. Whorl leaf, stalk, shank, husk, silk or kernel tissues were tested independently in the diet. Larvae fed diet containing conventional corn weighed more and were longer in length than larvae fed diet containing Bt corn for all tissue types included in the study. The number of larvae that survived depended on the tissue type and age of the tissue. Larvae fed diet with kernel tissue expressing Bt toxin had greater weight and body length than larvae fed the other Bt tissue types. The negative effects of Bt corn tissues expressing the Cry1Ab endotoxin protein on growth of D. grandiosella was observed, even at the diluted concentrations of toxic tissues incorporated into the diet in this study.

Southwestern corn borer damage and aflatoxin accumulation in conventional and transgenic corn hybrids

2005 ◽  
Vol 91 (2-3) ◽  
pp. 329-336 ◽  
Author(s):  
W. Paul Williams ◽  
Gary L. Windham ◽  
Paul M. Buckley ◽  
James M. Perkins
Keyword(s):  
Transgenic Corn ◽  
Corn Hybrids ◽  
Corn Borer ◽  
Aflatoxin Accumulation ◽  
Southwestern Corn Borer

scholarly journals Oviposition by European Corn Borer (Lepidoptera: Crambidae) in Response to Various Transgenic Corn Events

1999 ◽  
Vol 92 (5) ◽  
pp. 1014-1020 ◽  
Author(s):  
R. L. Hellmich ◽  
L. S. Higgins ◽  
J. F. Witkowski ◽  
J. E. Campbell ◽  
L. C. Lewis
Keyword(s):  
European Corn Borer ◽  
Transgenic Corn ◽  
Corn Borer

Influence of Transgenic Corn Expressing Insecticidal Protein of Bacillus thuringiensis Berliner on Natural Populations of Corn Earworm (Lepidoptera: Noctuidae) and Southwestern Corn Borer (Lepidoptera: Crambidae)

2006 ◽  
Vol 41 (3) ◽  
pp. 221-231 ◽  
Author(s):  
Kerry C. Allen ◽  
Henry N. Pitre
Keyword(s):  
Bacillus Thuringiensis ◽  
Helicoverpa Zea ◽  
Larval Growth ◽  
Natural Populations ◽  
Corn Earworm ◽  
Bt Corn ◽  
Transgenic Corn ◽  
Diatraea Grandiosella ◽  
Corn Hybrids ◽  
Corn Borer

A 2-yr study was conducted to measure the influence of transgenic corn, Zea mays L., expressing the CrylAb endotoxin of Bacillus thuringiensis (Berliner) (Bt) by means of Event MON810 on natural populations of Helicoverpa zea (Boddie) and Diatraea grandiosella (Dyar). The studies were conducted at Leland and Morgan City, MS, in 1999 and at Morgan City in 2000. Although total numbers of H. zea larvae were not significantly different on transgenic corn hybrids compared with their near-isogenic parent lines, fewer large larvae were found on the transgenic hybrids. Differences in H. zea larval growth were noticeable when larvae fed on Bt corn vs non-Bt corn. The delay in larval growth for insects within a single generation, which could possibly result in asynchronous mating between insecticide resistant and susceptible insects, was observed for larvae feeding on plants expressing the Bt toxin. Diatraea grandiosella caused limited damage to the transgenic corn hybrids compared with their near-isogenic parent lines. Yields were not significantly greater for the Bt corn hybrids compared with their near-isogenic parent lines. Yields were not significantly greater for the Bt corn hybrids compared with the near-isogenic, non-Bt corn parents; however, there was a trend toward higher yields for Bt hybrids compared with their near-isogenic non-Bt parents.

scholarly journals Development of insect resistant maize plants expressing a chitinase gene from the cotton leaf worm, Spodoptera littoralis

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Gamal H. Osman ◽  
Shireen K. Assem ◽  
Rasha M. Alreedy ◽  
Doaa K. El-Ghareeb ◽  
Mahmoud A. Basry ◽  
...  
Keyword(s):  
Transgenic Plants ◽  
Spodoptera Littoralis ◽  
Control Method ◽  
Transgenic Maize ◽  
Cotton Leaf ◽  
Transgenic Corn ◽  
Corn Borer ◽  
Defense Proteins ◽  
Maize Plants ◽  
Corn Plants

Abstract Due to the importance of chitinolytic enzymes for insect, nematode and fungal growth, they are receiving attention concerning their development as biopesticides or chemical defense proteins in transgenic plants and as microbial biocontrol agents. Targeting chitin associated with the extracellular matrices or cell wall by insect chitinases may be an effective approach for controlling pest insects and pathogenic fungi. The ability of chitinases to attack and digest chitin in the peritrophic matrix or exoskeleton raises the possibility to use them as insect control method. In this study, an insect chitinase cDNA from cotton leaf worm (Spodoptera littoralis) has been synthesized. Transgenic maize plant system was used to improve its tolerance against insects. Insect chitinase transcripts and proteins were expressed in transgenic maize plants. The functional integrity and expression of chitinase in progenies of the transgenic plants were confirmed by insect bioassays. The bioassays using transgenic corn plants against corn borer (Sesamia cretica) revealed that ~50% of the insects reared on transgenic corn plants died, suggesting that transgenic maize plants have enhanced resistance against S. cretica.

Transgenic Corn for Control of the European Corn Borer and Corn Rootworms: a Survey of Midwestern Farmers’ Practices and Perceptions

2005 ◽  
Vol 98 (2) ◽  
pp. 237-247 ◽  
Author(s):  
Ted A. Wilson ◽  
Marlin E. Rice ◽  
Jon J. Tollefson ◽  
Clinton D. Pilcher
Keyword(s):  
European Corn Borer ◽  
Transgenic Corn ◽  
Corn Borer ◽  
Corn Rootworms
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