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 2018: 95.39
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2018: 95.39
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
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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(6): 1754-1768

Arbuscular Mycorrhizal Fungus Inoculation on Antioxidant Enzyme Activities in Maize Plants at Different Levels of Fe and Zn Fertilization
Natarajan Balakrishnan1* and Kizhareal S. Subramanian2
1Department of Soil Science and Agricultural Chemistry
2Department of Nano Science and Technology, Tamil Nadu Agricultural University,Coimbatore 641 003, Tamil Nadu, India
*Corresponding author

Greenhouse and field experiments were conducted to study the changes of antioxidant enzyme activities of arbuscular mycorrhizal (AM) fungus Glomus intraradices Schenck and Smith inoculated (M+) and non-inoculated (M−) maize (Zea mays L.) plants (variety COHM5) under varying levels of zinc (12.5 and 25 kg ha−1) iron (12.5 and 25 kg ha−1). Roots and shoots sampled at 45 and 75 days after sowing (DAS) were estimated for its antioxidant enzymes superoxide dismutase, peroxidase, IAA oxidase, polyphenol oxidase, acid phosphatase and nutritional status especially Fe and Zn concentrations. Mycorrhizal inoculation significantly (P ≤ 0.01) increased all the antioxidant enzymes in both roots and shoots at 45 and 75 DAS regardless of Fe and Zn levels. All enzyme activities except SOD increased progressively with increasing levels of Fe and Zn under M+ and M− conditions. Acid phosphatase activity in M+ roots and shoots were higher in all levels of Zn and Fe but the values decreased with increasing levels of Zn particularly in roots. Mycorrhizal fungus inoculated plants had higher Fe and Zn concentrations in both stages in comparison to non-inoculated plants. Overall, data suggest that mycorrhizal symbiosis plays a vital role in enhancing activities of antioxidant enzymes and nutritional status that enables the host plant to sustain zinc and iron deficient conditions.

Keywords: Arbuscular mycorrhiza, Iron, Zinc, Maize, Antioxidant enzymes, Nutrition
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How to cite this article:

Natarajan Balakrishnan and Kizhareal S. Subramanian. 2017. Arbuscular mycorrhizal fungus inoculation on antioxidant enzyme activities in maize plants at different levels of Fe and Zn fertilizationInt.J.Curr.Microbiol.App.Sci. 6(6): 1754-1768. doi: