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Broad-spectrum antimicrobial activity of volatile organic compounds from endophytic Pseudomonas putida BP25 against diverse plant pathogens

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Title Broad-spectrum antimicrobial activity of volatile organic compounds from endophytic Pseudomonas putida BP25 against diverse plant pathogens
Not Available
 
Creator Agisha V N, Eapen S J, Suseelabhai R
Kumar A, Sheoran N
 
Subject Endophyte; dimethyl trisulphide; Pseudomonas putida; pyrazine; volatile compounds
 
Description Not Available
Black pepper endophytic Pseudomonas putida BP25 produced diverse antimicrobial volatile organic compounds having potential for plant disease management. Chemically synthesised volatiles such as 2, 5-dimethyl pyrazine; 2-methyl pyrazine; dimethyl trisulphide; 2-ethyl 5-methyl pyrazine; and 2-ethyl 3, 6-dimethyl pyrazine showed inhibitory activity against oomycete pathogens, Phytophthora capsici & Pythium myriotylum; fungal pathogens, Rhizoctonia solani, Colletotrichum gloeosporioides, Athelia rolfsii, Gibberella moniliformis & Magnaporthe oryzae; bacterial pathogen, Ralstonia pseudosolanacearum and plant parasitic nematode, Radopholus similis. Among them, dimethyl trisulphide completely inhibited oomycete and fungal pathogens as well as R. similis at a concentration of 2.65 µg cm−3 under in vitro conditions. Pyrazines suppressed Phytophthora lesions on shoot cuttings of black pepper upon in planta volatile treatment. Dimethyl trisulphide was the only compound that exhibited soil fumigant activity against P. capsici, R. solani and A. rolfsii (6.25 µg cm−3), C. gloeosporioides and G. moniliformis (12.5 µg cm−3), and R. similis (50 µg cm−3). Altogether, endophytic Pseudomonas putida BP25 and its volatile organic compounds offer an alternative strategy for eco-friendly disease management in agriculture.
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Date 2021-08-06T15:30:11Z
2021-08-06T15:30:11Z
2019-08-23
 
Type Research Paper
 
Identifier Valiya Nadakkakath Agisha, Aundy Kumar, Santhosh Joseph Eapen, Neelam Sheoran & Rajamma Suseelabhai (2019) Broad-spectrum antimicrobial activity of volatile organic compounds from endophytic Pseudomonas putida BP25 against diverse plant pathogens, Biocontrol Science and Technology, 29:11, 1069-1089, DOI: 10.1080/09583157.2019.1657067
09583157
http://krishi.icar.gov.in/jspui/handle/123456789/53497
 
Language English
 
Relation Not Available;
 
Publisher Taylor & Francis