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

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Gamal H. Osman ◽  
Shireen K. Assem ◽  
Rasha M. Alreedy ◽  
Doaa K. El-Ghareeb ◽  
Mahmoud A. Basry ◽  
...  
2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Gamal H. Osman ◽  
Shireen K. Assem ◽  
Rasha M. Alreedy ◽  
Doaa K. El-Ghareeb ◽  
Mahmoud A. Basry ◽  
...  

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.


2008 ◽  
Vol 2 (1) ◽  
pp. 24-32
Author(s):  
Sh. H. AL-Obaidi ◽  
L. K. AL-Ani ◽  
W. A. Hussain

A field study were conducted to evaluate the efficacy of the entomopathogenic fungi Beauveria bassiana as abiocontrol agent for the cotton leaf worm Spodoptera littoralis infesting potato plants. Results indicated that soil treatment of the entomopathogenic fungi significantly reduced the percentage of plant infestation to 64.3, 60.7 % after 14, 21 days. Results of the infection intensity also significantly reduced in treatment of entomopathogenic fungi in soil to 18.7, 9.9 pore/leaf after 14, 21 days of treatment.The results revealed the higher efficiency of entomopathogenic fungi on plant yield, it become 633.3 gm in entomopathogenic fungi in soil treatment.


2009 ◽  
Vol 72 (1-4) ◽  
pp. 205-212
Author(s):  
M. M. Hosny ◽  
A. M. Wakid ◽  
E. A. Elbadry ◽  
H. A. Sallam

2019 ◽  
Vol 57 (1) ◽  
pp. 377-389 ◽  
Author(s):  
Mamdouh A. Sofan ◽  
Tarek M. Abou Elmaaty ◽  
Abdel‐Kader M. Elkafafy ◽  
Ahmed E. M. Abdel Mageed

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