Endophyte-Mediated Resistance in Tomato to Fusarium oxysporum Is Independent of ET, JA, and SA
Root endophytes can confer resistance against plant pathogens by direct antagonism or via the host by triggering induced resistance. The latter response typically relies on jasmonic acid (JA)/ethylene (ET)-depended signaling pathways, but can also be triggered via salicylic acid (SA)-dependent signa...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2019-07-01
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| Series: | Frontiers in Plant Science |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/article/10.3389/fpls.2019.00979/full |
| _version_ | 1818944963687219200 |
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| author | Maria E. Constantin Francisco J. de Lamo Babette V. Vlieger Martijn Rep Frank L. W. Takken |
| author_facet | Maria E. Constantin Francisco J. de Lamo Babette V. Vlieger Martijn Rep Frank L. W. Takken |
| author_sort | Maria E. Constantin |
| collection | DOAJ |
| description | Root endophytes can confer resistance against plant pathogens by direct antagonism or via the host by triggering induced resistance. The latter response typically relies on jasmonic acid (JA)/ethylene (ET)-depended signaling pathways, but can also be triggered via salicylic acid (SA)-dependent signaling pathways. Here, we set out to determine if endophyte-mediated resistance (EMR), conferred by the Fusarium endophyte Fo47, against Fusarium wilt disease in tomato is mediated via SA, ET or JA. To test the contribution of SA, ET, and JA in EMR we performed bioassays with Fo47 and Fusarium oxysporum f. sp. lycopersici in tomato plants impaired in SA accumulation (NahG), JA biosynthesis (def1) or ET-production (ACD) and -sensing (Nr). We observed that the colonization pattern of Fo47 in stems of wildtype plants was indistinguishable from that of the hormone mutants. Surprisingly, EMR was not compromised in the lines affected in JA, ET, or SA signaling. The independence of EMR on SA, JA, and ET implies that this induced resistance-response against Fusarium wilt disease is distinct from the classical Induced Systemic Resistance (ISR) response, providing exciting possibilities for control of wilt diseases independent of conventional defense pathways. |
| first_indexed | 2024-12-20T07:51:34Z |
| format | Article |
| id | doaj.art-66d108ff234b4d94a1e6ac1b9094d011 |
| institution | Directory Open Access Journal |
| issn | 1664-462X |
| language | English |
| last_indexed | 2024-12-20T07:51:34Z |
| publishDate | 2019-07-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Plant Science |
| spelling | doaj.art-66d108ff234b4d94a1e6ac1b9094d0112022-12-21T19:47:49ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2019-07-011010.3389/fpls.2019.00979442917Endophyte-Mediated Resistance in Tomato to Fusarium oxysporum Is Independent of ET, JA, and SAMaria E. ConstantinFrancisco J. de LamoBabette V. VliegerMartijn RepFrank L. W. TakkenRoot endophytes can confer resistance against plant pathogens by direct antagonism or via the host by triggering induced resistance. The latter response typically relies on jasmonic acid (JA)/ethylene (ET)-depended signaling pathways, but can also be triggered via salicylic acid (SA)-dependent signaling pathways. Here, we set out to determine if endophyte-mediated resistance (EMR), conferred by the Fusarium endophyte Fo47, against Fusarium wilt disease in tomato is mediated via SA, ET or JA. To test the contribution of SA, ET, and JA in EMR we performed bioassays with Fo47 and Fusarium oxysporum f. sp. lycopersici in tomato plants impaired in SA accumulation (NahG), JA biosynthesis (def1) or ET-production (ACD) and -sensing (Nr). We observed that the colonization pattern of Fo47 in stems of wildtype plants was indistinguishable from that of the hormone mutants. Surprisingly, EMR was not compromised in the lines affected in JA, ET, or SA signaling. The independence of EMR on SA, JA, and ET implies that this induced resistance-response against Fusarium wilt disease is distinct from the classical Induced Systemic Resistance (ISR) response, providing exciting possibilities for control of wilt diseases independent of conventional defense pathways.https://www.frontiersin.org/article/10.3389/fpls.2019.00979/fullsystemic acquired resistance (SAR)induced systemic resistance (ISR)Fusarium wiltroot pathogensvasculaturebiocontrol |
| spellingShingle | Maria E. Constantin Francisco J. de Lamo Babette V. Vlieger Martijn Rep Frank L. W. Takken Endophyte-Mediated Resistance in Tomato to Fusarium oxysporum Is Independent of ET, JA, and SA Frontiers in Plant Science systemic acquired resistance (SAR) induced systemic resistance (ISR) Fusarium wilt root pathogens vasculature biocontrol |
| title | Endophyte-Mediated Resistance in Tomato to Fusarium oxysporum Is Independent of ET, JA, and SA |
| title_full | Endophyte-Mediated Resistance in Tomato to Fusarium oxysporum Is Independent of ET, JA, and SA |
| title_fullStr | Endophyte-Mediated Resistance in Tomato to Fusarium oxysporum Is Independent of ET, JA, and SA |
| title_full_unstemmed | Endophyte-Mediated Resistance in Tomato to Fusarium oxysporum Is Independent of ET, JA, and SA |
| title_short | Endophyte-Mediated Resistance in Tomato to Fusarium oxysporum Is Independent of ET, JA, and SA |
| title_sort | endophyte mediated resistance in tomato to fusarium oxysporum is independent of et ja and sa |
| topic | systemic acquired resistance (SAR) induced systemic resistance (ISR) Fusarium wilt root pathogens vasculature biocontrol |
| url | https://www.frontiersin.org/article/10.3389/fpls.2019.00979/full |
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