Terpene Down-Regulation Triggers Defense Responses in Transgenic Orange Leading to Resistance against Fungal Pathogens
Terpenoid volatiles are isoprene compounds that are emitted by plants to communicate with the environment. In addition to their function in repelling herbivores and attracting carnivorous predators in green tissues, the presumed primary function of terpenoid volatiles released from mature fruits is...
| Main Authors: | , , , , , , , , , |
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| Format: | article |
| Language: | Inglés |
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2017
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| Online Access: | http://hdl.handle.net/20.500.11939/4426 |
| _version_ | 1855032118531325952 |
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| author | Rodriguez, Ana Shimada, Takehiko Cervera, Magdalena Alquezar, Berta Gadea, Jose Gómez-Cadenas, Aurelio De-Ollas, Carlos J. Rodrigo, María J. Zacarias, Lorenzo Pena, Leandro |
| author_browse | Alquezar, Berta Cervera, Magdalena De-Ollas, Carlos J. Gadea, Jose Gómez-Cadenas, Aurelio Pena, Leandro Rodrigo, María J. Rodriguez, Ana Shimada, Takehiko Zacarias, Lorenzo |
| author_facet | Rodriguez, Ana Shimada, Takehiko Cervera, Magdalena Alquezar, Berta Gadea, Jose Gómez-Cadenas, Aurelio De-Ollas, Carlos J. Rodrigo, María J. Zacarias, Lorenzo Pena, Leandro |
| author_sort | Rodriguez, Ana |
| collection | ReDivia |
| description | Terpenoid volatiles are isoprene compounds that are emitted by plants to communicate with the environment. In addition to their function in repelling herbivores and attracting carnivorous predators in green tissues, the presumed primary function of terpenoid volatiles released from mature fruits is the attraction of seed-dispersing animals. Mature oranges (Citrus sinensis) primarily accumulate terpenes in peel oil glands, with D-limonene accounting for approximately 97% of the total volatile terpenes. In a previous report, we showed that down-regulation of a D-limonene synthase gene alters monoterpene levels in orange antisense (AS) fruits, leading to resistance against Penicillium digitatum infection. A global gene expression analysis of AS versus empty vector (EV) transgenic fruits revealed that the down-regulation of D-limonene up-regulated genes involved in the innate immune response. Basal levels of jasmonic acid were substantially higher in the EV compared with AS oranges. Upon fungal challenge, salicylic acid levels were triggered in EV samples, while jasmonic acid metabolism and signaling were drastically increased in AS orange peels. In nature, D-limonene levels increase in orange fruit once the seeds are fully viable. The inverse correlation between the increase in D-limonene content and the decrease in the defense response suggests that D-limonene promotes infection by microorganisms that are likely involved in facilitating access to the pulp for seed-dispersing frugivores. |
| format | article |
| id | ReDivia4426 |
| institution | Instituto Valenciano de Investigaciones Agrarias (IVIA) |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| record_format | dspace |
| spelling | ReDivia44262025-04-25T14:43:29Z Terpene Down-Regulation Triggers Defense Responses in Transgenic Orange Leading to Resistance against Fungal Pathogens Rodriguez, Ana Shimada, Takehiko Cervera, Magdalena Alquezar, Berta Gadea, Jose Gómez-Cadenas, Aurelio De-Ollas, Carlos J. Rodrigo, María J. Zacarias, Lorenzo Pena, Leandro Terpenoid volatiles are isoprene compounds that are emitted by plants to communicate with the environment. In addition to their function in repelling herbivores and attracting carnivorous predators in green tissues, the presumed primary function of terpenoid volatiles released from mature fruits is the attraction of seed-dispersing animals. Mature oranges (Citrus sinensis) primarily accumulate terpenes in peel oil glands, with D-limonene accounting for approximately 97% of the total volatile terpenes. In a previous report, we showed that down-regulation of a D-limonene synthase gene alters monoterpene levels in orange antisense (AS) fruits, leading to resistance against Penicillium digitatum infection. A global gene expression analysis of AS versus empty vector (EV) transgenic fruits revealed that the down-regulation of D-limonene up-regulated genes involved in the innate immune response. Basal levels of jasmonic acid were substantially higher in the EV compared with AS oranges. Upon fungal challenge, salicylic acid levels were triggered in EV samples, while jasmonic acid metabolism and signaling were drastically increased in AS orange peels. In nature, D-limonene levels increase in orange fruit once the seeds are fully viable. The inverse correlation between the increase in D-limonene content and the decrease in the defense response suggests that D-limonene promotes infection by microorganisms that are likely involved in facilitating access to the pulp for seed-dispersing frugivores. 2017-06-01T10:10:06Z 2017-06-01T10:10:06Z 2014 JAN 2014 article Rodriguez, A., Shimada, Takehiko, Cervera, M., Alquezar, B., Gadea, J., Gomez-Cadenas, Aurelio, J. De Ollas, C., Jesus Rodrigo, M., Zacarias, L., Pena, L. (2014). Terpene Down-Regulation Triggers Defense Responses in Transgenic Orange Leading to Resistance against Fungal Pathogens. Plant Physiology, 164(1), 321-339. 0032-0889 http://hdl.handle.net/20.500.11939/4426 10.1104/pp.113.224279 en openAccess Impreso |
| spellingShingle | Rodriguez, Ana Shimada, Takehiko Cervera, Magdalena Alquezar, Berta Gadea, Jose Gómez-Cadenas, Aurelio De-Ollas, Carlos J. Rodrigo, María J. Zacarias, Lorenzo Pena, Leandro Terpene Down-Regulation Triggers Defense Responses in Transgenic Orange Leading to Resistance against Fungal Pathogens |
| title | Terpene Down-Regulation Triggers Defense Responses in Transgenic Orange Leading to Resistance against Fungal Pathogens |
| title_full | Terpene Down-Regulation Triggers Defense Responses in Transgenic Orange Leading to Resistance against Fungal Pathogens |
| title_fullStr | Terpene Down-Regulation Triggers Defense Responses in Transgenic Orange Leading to Resistance against Fungal Pathogens |
| title_full_unstemmed | Terpene Down-Regulation Triggers Defense Responses in Transgenic Orange Leading to Resistance against Fungal Pathogens |
| title_short | Terpene Down-Regulation Triggers Defense Responses in Transgenic Orange Leading to Resistance against Fungal Pathogens |
| title_sort | terpene down regulation triggers defense responses in transgenic orange leading to resistance against fungal pathogens |
| url | http://hdl.handle.net/20.500.11939/4426 |
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