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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
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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.2017.6(12): 3962-3969
DOI: https://doi.org/10.20546/ijcmas.2017.612.456


Genetically Modified Crops and Soil Ecology: A Critical Review
Phuntsog Tundup*, D. Namgail, Rigzin Sangdup Safal, Vikas Gupta and Deldan Namgail
KVK, SKUAST-K, Leh J & K, India
*Corresponding author
Abstract:

A GM or transgenic crop is a crop which contains a gene or genes of a different species artificially inserted in its genome, which may come from an unrelated plant or from a completed different species. GM plants have been deliberately developed for a variety of reasons: e.g., longer shelf life, disease resistance, pest resistance, herbicide tolerance, nutritional improvement, resistance to such a biological stresses as drought or nitrogen starvation. Since GM crops were first commercialized in 1996, the planting of GM crops has consistently increased by 10% or more each year worldwide. The global hectarage of biotech crops have increased more than 100-fold from 1.7 million hectares in 1996 to over 175 million hectares in 2013 – this makes biotech crops the fastest adopted crop technology in recent history. The number and type of microorganisms inhabiting the rhizosphere of wheat were markly affected by the substitution of a chromosome pair from a variety of spring wheat relatively resistant to common root rot. Number of nematodes, collembola and ants were more in Bt plants rhizosphere as compared to non Bt plants rhizospere. The composition of microbial communities in the rhizosphere is governed by quality and quantity of carbon substrates that are released as root exudates. Targeted genetic traits for improved plant nutrition include greater plant tolerance to low Fe availability in alkaline soils, enhanced acquisition of soil inorganic and organic P, and increased assimilation of soil N.


Keywords: Genes, GM crops, Rhizosphere, Nematodes, Bt plant, Exudates, Plant nutrition.
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How to cite this article:

Phuntsog Tundup, D. Namgail, Rigzin Sangdup Safal, Vikas Gupta and Deldan Namgail. 2017. Genetically Modified Crops and Soil Ecology: A Critical Review.Int.J.Curr.Microbiol.App.Sci. 6(12): 3962-3969. doi: https://doi.org/10.20546/ijcmas.2017.612.456