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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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Original Research Articles

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(5): 1050-1055
DOI: https://doi.org/10.20546/ijcmas.2019.805.123


In vitro Bioefficacy of Endophytic Isolates against Citrus Nematode, Tylenchulus semipenetrans
K. Suganthi1, P. Vetrivelkalai2*, K. Poornima1 and R.M. Vijayakumar2
1Department of Nematology,
2Department of Fruit Crops, Tamil Nadu Agricultural University, Coimbatore – 641003, Tamil Nadu, India
*Corresponding author
Abstract:

The citrus nematode, Tylenchulus semipenetrans is known to occur in all citrus growing regions. The nematode feeds upon cortical cells and results in thicker roots than normal. The nematode caused yellowing of leaves and early fruit drop. A random survey was conducted in major citrus growing regions of Tamil Nadu to isolate the endophytes from the roots of acid lime (Citrus auruntifolium) and test the efficacy against citrus nematode, T.semipenetrans. Eight bacterial and four fungal endophytes were isolated from fifty one samples and an in vitro study was conducted to test the biocontrol efficacy against citrus nematode. The results revealed that four isolates viz., VSEB3, VREB8, PMEB1 and VREF3 significantly reduced the egg hatching (97.17, 96.60, 89.24 and 88.10 percent respectively) and showed highest juvenile mortality (100, 100, 99.33 and 87 percent respectively) at 100% concentration on five days and 72h of exposure respectively.


Keywords: Endophytes, Tylenchulus semipenetrans, Egg hatching, Juvenile mortality.
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How to cite this article:

Suganthi, K., P. Vetrivelkalai, K. Poornima and Vijayakumar, R.M. 2019. In vitro Bioefficacy of Endophytic Isolates against Citrus Nematode, Tylenchulus semipenetrans.Int.J.Curr.Microbiol.App.Sci. 8(5): 1050-1055. doi: https://doi.org/10.20546/ijcmas.2019.805.123