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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 (2017) [Effective from January 1, 2017]For more details click here
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2017)
[Effective from January 1, 2017]
For more details click here

ICV 2016: 92.3
Index Copernicus ICI Journals Master List 2016 - IJCMAS--ICV 2016: 92.3
For more details click here
journals IJCMAS
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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 2015: 85.95
NAAS RATING 2017: 5.38

Int.J.Curr.Microbiol.App.Sci.2017.6(3): 394-401
DOI: https://doi.org/10.20546/ijcmas.2017.603.045


Effect of Temperature on Growth and Sporulation of Rice Leaf Blast Pathogen Magnaporthe oryzae
Laxman Singh Rajput*, Taru Sharma, Puchakayala Madhusudhan and Parimal Sinha
Division of Plant Pathology, ICAR-Indian Agricultural Research Institute,New Delhi-110012, India
*Corresponding author
Abstract:

Temperature rise due to climate change is expected to change pathogenicity of the pathogen. Temperature has a significant influence on growth and sporulation of rice leaf blast pathogen (M. oryzae). Both growth and sporulation were increased up to a temperature (27°C) and declined further in response to increased or decreased with temperature (32°C and 22°C). Various components of rice blast infection observed maximum at 27°C (optimal temperature) compared to suboptimal (22°C) and supra-optimal (32°C) i.e. growth and rate of growth in RSEDOMA media, lesion development and rate of lesion development in susceptible variety PRR78, sporulation and rate of sporulation in RSEDOMA media and susceptible variety PRR78. Rise in temperature leads to increase in growth and sporulation of M. oryzae in tropical and subtropical regions of the world, it’s to be expected to enhance in aggressiveness of M. oryzae that results rice blast epidemic in tropical and subtropical regions of the world. Therefore, the impact of temperature on infection components may use for development of crop loss assessment models, rice blast prediction models, evaluation of genotypes for the development of future plant diseases managements strategies.


Keywords: Leaf blast, Growth, Sporulation, Temperature.
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How to cite this article:

Laxman Singh Rajput, Taru Sharma, Puchakayala Madhusudhan and Parimal Sinha. 2017. Effect of Temperature on Growth and Sporulation of Rice Leaf Blast Pathogen Magnaporthe oryzae.Int.J.Curr.Microbiol.App.Sci. 6(3): 394-401. doi: https://doi.org/10.20546/ijcmas.2017.603.045