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http://krishi.icar.gov.in/jspui/handle/123456789/50562
Title: | Bio-protective microbial agents from rhizosphere eco-systems triggering plant defense responses provide protection against sheath blight disease in rice (Oryza sativa L.) |
Other Titles: | Not Available |
Authors: | Udai B. Singh, Deepti Malviya, Wasiullah, Shailendra Singh, Jatindra K. Pradhan, Bhanu P. Singh, Manish Roy, Mohd. Imram, Neelam Pathak, B.M. Baisyal, Jai P. Rai, B.K. Sarma, Rajiv K. Singh, P.K. Sharma, Saman Deep Kaur, M.C. Manna,Sushil K. Sharma, Arun K. Sharma |
ICAR Data Use Licennce: | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf |
Author's Affiliated institute: | National Bureau of Agriculturally Important Microorganisms (NBAIM), Kushmaur, Maunath Bhanjan 275 101, India |
Published/ Complete Date: | 2016-01-01 |
Project Code: | Not Available |
Keywords: | Pseudomonas, Trichoderma, Rhizosphere, Defence-related biomolecules, Induced systemic resistance (ISR), Signalling biomolecules |
Publisher: | Elsevier |
Citation: | Not Available |
Series/Report no.: | Not Available; |
Abstract/Description: | Sheath blight of rice (Oryza sativa L.) caused by Rhizoctonia solani is a major disease and attempts are beingmade to develop microbe based technologies for biocontrol of this pathogen. However, the mechanisms ofbiocontrol are not fully understood and still require indepth study in the backdrop of emerging conceptsin biological systems. The present investigation was aimed at deciphering the mechanisms of biocontrolof sheath blight of rice employing Pseudomonas fluorescens and Trichoderma harzianum as model agentsfor biocontrol. Initially 25, 5 and 5 strains of P. fluorescens, T. viride and T. harzianum, respectively, werescreened for their biocontrol potential. Out of which, six strains with higher value of percent inhibition offungal mycelium in dual plate assay were selected. The role of P. fluorescens, T. viride and T. harzianum wereinvestigated in induction and bioaccumulation of natural antioxidants, defence-related biomolecules andother changes in plant which lead not only to growth promotion but also protection from pathogenicstress conditions in rice. The two most promising strains, P. fluorescens PF-08 and T. harzianum UBSTH-501selected on the basis of in planta evaluation, when applied individually or in combination, significantlyenhanced the accumulation of defence-related biomolecules, enzymes and exhibited biocontrol poten-tial against R. solani. A modified/newly developed delivery system was applied for the first time in theexperiments involving inoculation of plants with both bioagents, viz. P. fluorescens PF-08 and T. harzianumUBSTH-501. Results suggested that application of P. fluorescens PF-08 and T. harzianum UBSTH-501 aloneor in combination, not only helps in control of the disease but also increases plant growth along withreduction in application of toxic chemical pesticides. |
Description: | Not Available |
ISSN: | Not Available |
Type(s) of content: | Research Paper |
Sponsors: | Not Available |
Language: | English |
Name of Journal: | Microbiological Research (Zentralblatt f?r Mikrobiologie) |
NAAS Rating: | 9.97 |
Volume No.: | 192 |
Page Number: | 300-312 |
Name of the Division/Regional Station: | Not Available |
Source, DOI or any other URL: | 10.1016/j.micres.2016.08.007 |
URI: | http://krishi.icar.gov.in/jspui/handle/123456789/50562 |
Appears in Collections: | CS-NBAIMO-Publication |
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