Effects of Meloidogyne incognita, Pectobacterium betavasculorum and Rhizoctonia solani interactions on growth, physiological and biochemical changes of beetroot
- 18 September 2020
- journal article
- research article
- Published by Brill in Israel Journal of Plant Sciences
- Vol. 67 (3-4), 194-211
- https://doi.org/10.1163/22238980-bja10015
Abstract
Effect of Meloidogyne incognita, Pectobacterium betavasculorum and Rhizoctonia solani alone, pre, post and simultaneous inoculations to find out role of each pathogen on growth, chlorophyll and carotenoid, superoxide dismutase (SOD), catalase (CAT), peroxidase (POD), ascorbate peroxidase (APX), glutathione peroxidase (GPX), glutathione reductase (GR) activities and proline, H2O2 and malondialdehyde (MDA) of beetroot (Beta vulgaris L). Inoculation of plants with M. incognita / P. betavasculorum or R. solani reduced plant growth (root dry weight) (42.0%), chlorophyll (24.2%) and carotenoid (47.7%) while inoculation of pathogens under study resulted in increased activities of antioxidant enzymes, proline, H2O2 and MDA. Combined inoculation of pathogens under study resulted in greater reduction of plant growth (74.9%), chlorophyll (55.3%) and carotenoid (83.7%) than individual pathogen. Greatest reduction in plant growth, chlorophyll and carotenoid and maximum activities of antioxidant enzymes, proline, H2O2 and MDA were observed when M. incognita was inoculated 20 days prior to P. betavasculorum plus R. solani. P. betavasculorum and R. solani reduced galling and nematode multiplication but maximum reduction in galling (82.8%) and nematode multiplication (82.7%) was observed when P. betavasculorum plus R. solani were inoculated prior to nematodes. Necrosis soft rot and root rot indices by P. betavasculorum and R. solani were 3 respectively. Disease indices were 5 when two or more pathogens were inoculated together. Prior inoculation of M. incognita predisposed beetroots to P. betavasculorum and R. solani and aggravates the disease.Keywords
This publication has 34 references indexed in Scilit:
- Role of proline under changing environmentsPlant Signaling & Behavior, 2012
- Antioxidant Activity of Betanidin: Electrochemical Study in Aqueous MediaJournal of Agricultural and Food Chemistry, 2011
- Hormone Crosstalk in Plant Disease and Defense: More Than Just JASMONATE-SALICYLATE AntagonismAnnual Review of Phytopathology, 2011
- Regulation of photosynthetic electron transportBiochimica et Biophysica Acta (BBA) - Bioenergetics, 2011
- Proline Dehydrogenase Contributes to Pathogen Defense in ArabidopsisPlant Physiology, 2011
- Influence of Industrial and Alternative Farming Systems on Contents of Sugars, Organic Acids, Total Phenolic Content, and the Antioxidant Activity of Red Beet (Beta vulgarisL. ssp.vulgarisRote Kugel)Journal of Agricultural and Food Chemistry, 2010
- Arsenite treatment induces oxidative stress, upregulates antioxidant system, and causes phytochelatin synthesis in rice seedlingsProtoplasma, 2010
- Proline Metabolism and Its Implications for Plant-Environment InteractionThe Arabidopsis Book, 2010
- Induction of reactive oxygen species and necrotic death-like destruction in strawberry leaves by salinityEnvironmental and Experimental Botany, 2009
- Proteome-wide characterization of sugarbeet seed vigor and its tissue specific expressionProceedings of the National Academy of Sciences of the United States of America, 2008