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Antioxidants (Basel)

Title:		Unraveling Microbial Volatile Elicitors Using a Transparent Methodology for Induction of Systemic Resistance and Regulation of Antioxidant Genes at Expression Levels in Chili against Bacterial Wilt Disease
Author(s):		Kashyap AS; Manzar N; Nebapure SM; Rajawat MVS; Deo MM; Singh JP; Kesharwani AK; Singh RP; Dubey SC; Singh D;
Address:		"Division of Plant Pathology, ICAR-Indian Agricultural Research Institute, New Delhi 110012, India. Plant Pathology Laboratory, ICAR-National Bureau of Agriculturally Important Microorganisms, Maunath Bhanjan 275103, India. Division of Entomology, ICAR-IARI, New Delhi 110012, India. Farm Machinery and Power, ICAR-Indian Institute of Pulses Research, Kanpur 208024, India. Division of Biochemistry, ICAR-Indian Agricultural Research Institute, New Delhi 110012, India. Division of Plant Quarantine, ICAR-NBPGR, New Delhi 110012, India. Krishi Bhawan, Indian Council of Agricultural Research, New Delhi 110001, India"
Journal Title:		Antioxidants (Basel)
Year:		2022
Volume:		20220216
Issue:		2
Page Number:		-
DOI:		10.3390/antiox11020404
ISSN/ISBN:		2076-3921 (Print) 2076-3921 (Electronic) 2076-3921 (Linking)
Abstract:		"Microbial volatiles benefit the agricultural ecological system by promoting plant growth and systemic resistance against diseases without harming the environment. To explore the plant growth-promoting efficiency of VOCs produced by Pseudomonas fluorescens PDS1 and Bacillus subtilis KA9 in terms of chili plant growth and its biocontrol efficiency against Ralstonia solanacearum, experiments were conducted both in vitro and in vivo. A closure assembly was designed using a half-inverted plastic bottle to demonstrate plant-microbial interactions via volatile compounds. The most common volatile organic compounds were identified and reported; they promoted plant development and induced systemic resistance (ISR) against wilt pathogen R. solanacearum. The PDS1 and KA9 VOCs significantly increased defensive enzyme activity and overexpressed the antioxidant genes PAL, POD, SOD, WRKYa, PAL1, DEF-1, CAT-2, WRKY40, HSFC1, LOX2, and NPR1 related to plant defense. The overall gene expression was greater in root tissue as compared to leaf tissue in chili plant. Our findings shed light on the relationship among rhizobacteria, pathogen, and host plants, resulting in plant growth promotion, disease suppression, systemic resistance-inducing potential, and antioxidant response with related gene expression in the leaf and root tissue of chili"
Keywords:		B.subtilis KA9 GC-MS spectroscopy P.fluorescens PDS1 Ralstonia solanacearum real-time PCR systemic resistance transmission electron microscopy volatile compounds;
Notes:		"PubMed-not-MEDLINEKashyap, Abhijeet Shankar Manzar, Nazia Nebapure, Suresh M Rajawat, Mahendra Vikram Singh Deo, Man Mohan Singh, Jyoti Prakash Kesharwani, Amit Kumar Singh, Ravinder Pal Dubey, S C Singh, Dinesh eng abhijeet_10333/Indian Agricultural Research Institute/ Switzerland 2022/02/26 Antioxidants (Basel). 2022 Feb 16; 11(2):404. doi: 10.3390/antiox11020404"