PGPR in Managing Root Rot Disease and Enhancing Growth in Mandarin (Citrus reticulata Blanco.) Seedlings
Decline in general plant-health and fruit production in mandarin influenced by abiotic and biotic factors is a major threat to cultivars grown in Darjeeling and Sikkim hills. Fusarium root rot, caused by F. oxysporum, is one of the most serious diseases afflicted during early plant growth stage in ...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Society for Promotion of Horticulture - Indian Institute of Horticultural Research
2016-12-01
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| Series: | Journal of Horticultural Sciences |
| Subjects: | |
| Online Access: | https://jhs.iihr.res.in/index.php/jhs/article/view/80 |
| _version_ | 1828716652864208896 |
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| author | B N Chakraborty S Allay A P Chakraborty U Chakraborty |
| author_facet | B N Chakraborty S Allay A P Chakraborty U Chakraborty |
| author_sort | B N Chakraborty |
| collection | DOAJ |
| description |
Decline in general plant-health and fruit production in mandarin influenced by abiotic and biotic factors is a major threat to cultivars grown in Darjeeling and Sikkim hills. Fusarium root rot, caused by F. oxysporum, is one of the most serious diseases afflicted during early plant growth stage in Citrus. To address this, seven PGPR isolates - Pseudomonas poae (RMK03), Bacillus stratosphericus (RHS/CL-01), Ochrobactrum anthropi, Paenibacillus lentimorbus, Bacillus pumilus, Bacillus megaterium and Bacillus amyloliquefaciens were isolated from the rhizosphere of Citrus reticulata, C. limonia and Camellia sinensis, and used for evaluating their effect on growth of mandarin seedlings. Pseudomonas poae showed in vitro antagonism to Fusarium oxysporum. Better growth enhancement was noticed with P. poae, B. stratosphericus, O. anthropi and B. pumilus. Enhanced activity of chlorophyll, total protein, phenol, four major defense enzymeschitinase, β-1, 3-glucanase, peroxidase and phenyalanine ammonia lyase was observed upon application of PGPR. P. poae also suppressed root rot caused by Fusarium oxysporum. Use of PGPR, which promote growth besides reducing disease severity to some extent, may lead to use of eco-friendly approaches for controlling plant diseases.
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| first_indexed | 2024-03-12T14:15:32Z |
| format | Article |
| id | doaj.art-7cc086170f2c4479b40cf6de9ff9af4b |
| institution | Directory Open Access Journal |
| issn | 0973-354X 2582-4899 |
| language | English |
| last_indexed | 2024-03-12T14:15:32Z |
| publishDate | 2016-12-01 |
| publisher | Society for Promotion of Horticulture - Indian Institute of Horticultural Research |
| record_format | Article |
| series | Journal of Horticultural Sciences |
| spelling | doaj.art-7cc086170f2c4479b40cf6de9ff9af4b2023-08-20T13:59:47ZengSociety for Promotion of Horticulture - Indian Institute of Horticultural ResearchJournal of Horticultural Sciences0973-354X2582-48992016-12-0111210.24154/jhs.v11i2.8070PGPR in Managing Root Rot Disease and Enhancing Growth in Mandarin (Citrus reticulata Blanco.) SeedlingsB N ChakrabortyS AllayA P ChakrabortyU Chakraborty Decline in general plant-health and fruit production in mandarin influenced by abiotic and biotic factors is a major threat to cultivars grown in Darjeeling and Sikkim hills. Fusarium root rot, caused by F. oxysporum, is one of the most serious diseases afflicted during early plant growth stage in Citrus. To address this, seven PGPR isolates - Pseudomonas poae (RMK03), Bacillus stratosphericus (RHS/CL-01), Ochrobactrum anthropi, Paenibacillus lentimorbus, Bacillus pumilus, Bacillus megaterium and Bacillus amyloliquefaciens were isolated from the rhizosphere of Citrus reticulata, C. limonia and Camellia sinensis, and used for evaluating their effect on growth of mandarin seedlings. Pseudomonas poae showed in vitro antagonism to Fusarium oxysporum. Better growth enhancement was noticed with P. poae, B. stratosphericus, O. anthropi and B. pumilus. Enhanced activity of chlorophyll, total protein, phenol, four major defense enzymeschitinase, β-1, 3-glucanase, peroxidase and phenyalanine ammonia lyase was observed upon application of PGPR. P. poae also suppressed root rot caused by Fusarium oxysporum. Use of PGPR, which promote growth besides reducing disease severity to some extent, may lead to use of eco-friendly approaches for controlling plant diseases. https://jhs.iihr.res.in/index.php/jhs/article/view/80PGPRMandarinRoot RotCitrusBacterial Isolates |
| spellingShingle | B N Chakraborty S Allay A P Chakraborty U Chakraborty PGPR in Managing Root Rot Disease and Enhancing Growth in Mandarin (Citrus reticulata Blanco.) Seedlings Journal of Horticultural Sciences PGPR Mandarin Root Rot Citrus Bacterial Isolates |
| title | PGPR in Managing Root Rot Disease and Enhancing Growth in Mandarin (Citrus reticulata Blanco.) Seedlings |
| title_full | PGPR in Managing Root Rot Disease and Enhancing Growth in Mandarin (Citrus reticulata Blanco.) Seedlings |
| title_fullStr | PGPR in Managing Root Rot Disease and Enhancing Growth in Mandarin (Citrus reticulata Blanco.) Seedlings |
| title_full_unstemmed | PGPR in Managing Root Rot Disease and Enhancing Growth in Mandarin (Citrus reticulata Blanco.) Seedlings |
| title_short | PGPR in Managing Root Rot Disease and Enhancing Growth in Mandarin (Citrus reticulata Blanco.) Seedlings |
| title_sort | pgpr in managing root rot disease and enhancing growth in mandarin citrus reticulata blanco seedlings |
| topic | PGPR Mandarin Root Rot Citrus Bacterial Isolates |
| url | https://jhs.iihr.res.in/index.php/jhs/article/view/80 |
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