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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2019.8(2): 869-878
DOI: https://doi.org/10.20546/ijcmas.2019.802.098


Neuropeptides as Novel Insecticidal Agents
K. Elakkiya, P. Yasodha*, C. Gailce Leo Justin and Vijay Akshay Kumar
Anbil Dharmalingam Agricultural College & Research Institute, Navalur Kuttapattu, Trichy–620027 Tamil Nadu, India
*Corresponding author
Abstract:

Neuropeptides (protein molecules) are synthesised in the neurons, helps to communicate the impulse from the stimulant to the receptor. Neuropeptides are responsible for regulating a various physiological functions including development, metabolism, water and ion homeostasis, and as neuromodulators in circuits of the central nervous system. Neuropeptides are different from neurotransmitters because, former releases in the haemolymph and the later releases in the neuro-neuro junction or in the neuro-muscular junction. The first neuropeptide isolated from Periplanata Americana was protocolin in the year 1975 which helps in muscle contractions in hindgut, reproductive, skeletal and heart muscle. At present a total of 4782 insect neuropeptide records were obtained which perform various related physiological functions. Thus it paves the way for the generation of novel type of putative insect control agents based on backbone cyclic (BBC) peptidomimetic antagonists of insect-neuropeptides. At present four different neuropeptides such as proctolin, kinin, pheromone biosynthesis activating neuropeptide (PBAN) and allatostatin were studied thoroughly and their biologically active sequence were identified. Using this sequence peptidomimetic analogues (either as agonists or antagonists) were synthesized in automated peptide synthesizer and tested for their efficacy as insecticide. Among those four PBAN showed good result as insecticide by reducing pheromone production up to 73% in Helicoverpa peltigera. Based on this many neuropeptides were under in vitro test for their antagonist activity. In 2016, a synthetic antagonistic neuropeptide based on pheromone biosynthesis activating neuropeptide was registered for patent by Altstein. This neuropeptide based insecticide is highly insect specific and can be incorporated as apart in integrated pest management though the production of synthetic peptide is critical.


Keywords: Insect neuropeptide, PBAN, backbone cyclic peptidomimetic antagonists
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How to cite this article:

Elakkiya, K., P. Yasodha, C. Gailce Leo Justin and Vijay Akshay Kumar. 2019. Neuropeptides as Novel Insecticidal Agents.Int.J.Curr.Microbiol.App.Sci. 8(2): 869-878. doi: https://doi.org/10.20546/ijcmas.2019.802.098