Mechanical strengthening and metabolic re-modulations are involved in protection against Fusarium wilt of tomato by B. subtilis IAGS174
Rhizospheric bacteria may induce resistance to plant diseases. However, the underlying plant resistance mechanisms are unclear. We demonstrated the potential ability of the rhizobacterial strain Bacillus subtilis IAGS174 to elicit systemic resistance in tomato plants against Fusarium wilt pathogens....
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2021-01-01
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| Series: | Journal of Plant Interactions |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/17429145.2021.1966107 |
| _version_ | 1798033666339766272 |
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| author | Waheed Akram Aqeel Ahmad Nasim Ahmad Yasin Tehmina Anjum Basharat Ali Sabin Fatima Shakeel Ahmed Mario Juan Simirgiotis Guihua Li |
| author_facet | Waheed Akram Aqeel Ahmad Nasim Ahmad Yasin Tehmina Anjum Basharat Ali Sabin Fatima Shakeel Ahmed Mario Juan Simirgiotis Guihua Li |
| author_sort | Waheed Akram |
| collection | DOAJ |
| description | Rhizospheric bacteria may induce resistance to plant diseases. However, the underlying plant resistance mechanisms are unclear. We demonstrated the potential ability of the rhizobacterial strain Bacillus subtilis IAGS174 to elicit systemic resistance in tomato plants against Fusarium wilt pathogens. Comparative biochemical, histological, and molecular analyses were conducted to screen the differential responses between non-inoculated and B. subtilis IAGS174-inoculated tomato plants followed by pathogen challenge. B. subtilis IAGS174 had a significant inhibitory effect on disease development and reduced the disease index. B. subtilis IAGS174-primed plants exhibited significantly improved synthesis of total phenolics, flavonoids, and plant defense enzymes. Furthermore, priming increased the production of physical defense barriers including lignin. Additionally, RT-qPCR analysis revealed that disease resistance in bacteria-treated tomato plants was associated with increased expression levels of lignin-related and phenylpropanoid biosynthetic genes. Our findings support a positive role of B. subtilis IAGS174 in triggering immunity of tomato plants against a soil-borne disease. |
| first_indexed | 2024-04-11T20:33:45Z |
| format | Article |
| id | doaj.art-bbf63356a22c45cfb3776db70b3a2218 |
| institution | Directory Open Access Journal |
| issn | 1742-9145 1742-9153 |
| language | English |
| last_indexed | 2024-04-11T20:33:45Z |
| publishDate | 2021-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of Plant Interactions |
| spelling | doaj.art-bbf63356a22c45cfb3776db70b3a22182022-12-22T04:04:26ZengTaylor & Francis GroupJournal of Plant Interactions1742-91451742-91532021-01-0116141142110.1080/17429145.2021.19661071966107Mechanical strengthening and metabolic re-modulations are involved in protection against Fusarium wilt of tomato by B. subtilis IAGS174Waheed Akram0Aqeel Ahmad1Nasim Ahmad Yasin2Tehmina Anjum3Basharat Ali4Sabin Fatima5Shakeel Ahmed6Mario Juan Simirgiotis7Guihua Li8Guangdong Academy of Agricultural SciencesGuangdong Academy of Agricultural SciencesUniversity of the PunjabUniversity of the PunjabUniversity of the PunjabDirectorate General of Pest Warning and Quality Control of Pesticides PunjabUniversidad Austral de ChileUniversidad Austral de ChileGuangdong Academy of Agricultural SciencesRhizospheric bacteria may induce resistance to plant diseases. However, the underlying plant resistance mechanisms are unclear. We demonstrated the potential ability of the rhizobacterial strain Bacillus subtilis IAGS174 to elicit systemic resistance in tomato plants against Fusarium wilt pathogens. Comparative biochemical, histological, and molecular analyses were conducted to screen the differential responses between non-inoculated and B. subtilis IAGS174-inoculated tomato plants followed by pathogen challenge. B. subtilis IAGS174 had a significant inhibitory effect on disease development and reduced the disease index. B. subtilis IAGS174-primed plants exhibited significantly improved synthesis of total phenolics, flavonoids, and plant defense enzymes. Furthermore, priming increased the production of physical defense barriers including lignin. Additionally, RT-qPCR analysis revealed that disease resistance in bacteria-treated tomato plants was associated with increased expression levels of lignin-related and phenylpropanoid biosynthetic genes. Our findings support a positive role of B. subtilis IAGS174 in triggering immunity of tomato plants against a soil-borne disease.http://dx.doi.org/10.1080/17429145.2021.1966107fusarium wiltinduced resistanceligninphenylpropenoidsphytoalexinstomato |
| spellingShingle | Waheed Akram Aqeel Ahmad Nasim Ahmad Yasin Tehmina Anjum Basharat Ali Sabin Fatima Shakeel Ahmed Mario Juan Simirgiotis Guihua Li Mechanical strengthening and metabolic re-modulations are involved in protection against Fusarium wilt of tomato by B. subtilis IAGS174 Journal of Plant Interactions fusarium wilt induced resistance lignin phenylpropenoids phytoalexins tomato |
| title | Mechanical strengthening and metabolic re-modulations are involved in protection against Fusarium wilt of tomato by B. subtilis IAGS174 |
| title_full | Mechanical strengthening and metabolic re-modulations are involved in protection against Fusarium wilt of tomato by B. subtilis IAGS174 |
| title_fullStr | Mechanical strengthening and metabolic re-modulations are involved in protection against Fusarium wilt of tomato by B. subtilis IAGS174 |
| title_full_unstemmed | Mechanical strengthening and metabolic re-modulations are involved in protection against Fusarium wilt of tomato by B. subtilis IAGS174 |
| title_short | Mechanical strengthening and metabolic re-modulations are involved in protection against Fusarium wilt of tomato by B. subtilis IAGS174 |
| title_sort | mechanical strengthening and metabolic re modulations are involved in protection against fusarium wilt of tomato by b subtilis iags174 |
| topic | fusarium wilt induced resistance lignin phenylpropenoids phytoalexins tomato |
| url | http://dx.doi.org/10.1080/17429145.2021.1966107 |
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