Discriminating the short-term action of root and foliar application of humic acids on plant growth: emerging role of jasmonic acid
Humic substances (HS, fulvic and humic acids) are widely used as fertilizers or plant growth stimulants, although their mechanism of action still remains partially unknown. Humic substances may be applied either directly to the soil or as foliar sprays. Despite both kind of application are commonly...
| Autores: | , , , , , |
|---|---|
| Formato: | artículo |
| Fecha de publicación: | 2020 |
| País: | España |
| Recursos: | Universidad de Navarra |
| Repositorio: | Dadun. Depósito Académico Digital de la Universidad de Navarra |
| Idioma: | inglés |
| OAI Identifier: | oai:dadun.unav.edu:10171/59037 |
| Acesso em linha: | https://hdl.handle.net/10171/59037 |
| Access Level: | acceso abierto |
| Palavra-chave: | Humic substances Humic acids Foliar application Root application Root growth Shoot growth Jasmonic acid Salicylic acid |
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Discriminating the short-term action of root and foliar application of humic acids on plant growth: emerging role of jasmonic acidHita-Mejía, D. (David) de|||/items/e985ff71-0b95-42e6-a1ba-911ee454bb5cFuentes-Ramirez, M. (Marta)|||/items/6099cef4-7f6e-43d9-8530-7bc85af2af88Fernández, V. (Victoria)|||/items/b2cefdee-f213-4879-9b5a-2ecf3f7302bcZamarreño-Arregui, A.M. (Angel María)|||/items/316fe376-3b6c-4f68-b6da-03cf1fdab968Olaetxea-Indaburu, M. (Maite)|||/items/6961aa63-6d15-4579-90a0-596f4cb380c3García-Mina, J.M. (José María)|||/items/815053fc-2f39-4f00-aed0-c5f6ee370258Humic substancesHumic acidsFoliar applicationRoot applicationRoot growthShoot growthJasmonic acidSalicylic acidHumic substances (HS, fulvic and humic acids) are widely used as fertilizers or plant growth stimulants, although their mechanism of action still remains partially unknown. Humic substances may be applied either directly to the soil or as foliar sprays. Despite both kind of application are commonly used in agricultural practices, most of the studies regarding the elicited response in plants induced by HS are based on the root-application of these substances. The present work aimed at discriminating between the mechanisms of action of foliar application versus root application of a sedimentary humic acid (SHA) on plant development. For this purpose, six markers related to plant phenotype, plant morphology, hormonal balance and root-plasma membrane H+-ATPase were selected. Both application strategies improved the shoot and root growth. Foliar applied- and root applied-SHA shared the capacity to increase the concentration of indole-3-acetic acid in roots and cytokinins in shoots. However, foliar application did not lead to short-term increases in either abscisic acid root-concentration or root-plasma membrane H+-ATPase activity which are, however, two crucial effects triggered by SHA root-application. Both application modes increased the root concentrations of jasmonic acid and jasmonoyl-isoleucine. These hormonal changes caused by foliar application could be a stress-related symptom and connected to the loss of leaves trichomes and the diminution of chloroplasts size seen by scanning electron microscopy. These results support the hypothesis that the beneficial effects of SHA applied to roots or leaves may result from plant adaptation to a mild transient stress caused by SHA application.Dadun. Depósito Académico Digital Universidad de Navarra20202020-06-1120202020-01-0120202020-01-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10171/59037reponame:Dadun. Depósito Académico Digital de la Universidad de Navarrainstname:Universidad de NavarraInglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:dadun.unav.edu:10171/590372026-06-21T12:47:57Z |
| dc.title.none.fl_str_mv |
Discriminating the short-term action of root and foliar application of humic acids on plant growth: emerging role of jasmonic acid |
| title |
Discriminating the short-term action of root and foliar application of humic acids on plant growth: emerging role of jasmonic acid |
| spellingShingle |
Discriminating the short-term action of root and foliar application of humic acids on plant growth: emerging role of jasmonic acid Hita-Mejía, D. (David) de|||/items/e985ff71-0b95-42e6-a1ba-911ee454bb5c Humic substances Humic acids Foliar application Root application Root growth Shoot growth Jasmonic acid Salicylic acid |
| title_short |
Discriminating the short-term action of root and foliar application of humic acids on plant growth: emerging role of jasmonic acid |
| title_full |
Discriminating the short-term action of root and foliar application of humic acids on plant growth: emerging role of jasmonic acid |
| title_fullStr |
Discriminating the short-term action of root and foliar application of humic acids on plant growth: emerging role of jasmonic acid |
| title_full_unstemmed |
Discriminating the short-term action of root and foliar application of humic acids on plant growth: emerging role of jasmonic acid |
| title_sort |
Discriminating the short-term action of root and foliar application of humic acids on plant growth: emerging role of jasmonic acid |
| dc.creator.none.fl_str_mv |
Hita-Mejía, D. (David) de|||/items/e985ff71-0b95-42e6-a1ba-911ee454bb5c Fuentes-Ramirez, M. (Marta)|||/items/6099cef4-7f6e-43d9-8530-7bc85af2af88 Fernández, V. (Victoria)|||/items/b2cefdee-f213-4879-9b5a-2ecf3f7302bc Zamarreño-Arregui, A.M. (Angel María)|||/items/316fe376-3b6c-4f68-b6da-03cf1fdab968 Olaetxea-Indaburu, M. (Maite)|||/items/6961aa63-6d15-4579-90a0-596f4cb380c3 García-Mina, J.M. (José María)|||/items/815053fc-2f39-4f00-aed0-c5f6ee370258 |
| author |
Hita-Mejía, D. (David) de|||/items/e985ff71-0b95-42e6-a1ba-911ee454bb5c |
| author_facet |
Hita-Mejía, D. (David) de|||/items/e985ff71-0b95-42e6-a1ba-911ee454bb5c Fuentes-Ramirez, M. (Marta)|||/items/6099cef4-7f6e-43d9-8530-7bc85af2af88 Fernández, V. (Victoria)|||/items/b2cefdee-f213-4879-9b5a-2ecf3f7302bc Zamarreño-Arregui, A.M. (Angel María)|||/items/316fe376-3b6c-4f68-b6da-03cf1fdab968 Olaetxea-Indaburu, M. (Maite)|||/items/6961aa63-6d15-4579-90a0-596f4cb380c3 García-Mina, J.M. (José María)|||/items/815053fc-2f39-4f00-aed0-c5f6ee370258 |
| author_role |
author |
| author2 |
Fuentes-Ramirez, M. (Marta)|||/items/6099cef4-7f6e-43d9-8530-7bc85af2af88 Fernández, V. (Victoria)|||/items/b2cefdee-f213-4879-9b5a-2ecf3f7302bc Zamarreño-Arregui, A.M. (Angel María)|||/items/316fe376-3b6c-4f68-b6da-03cf1fdab968 Olaetxea-Indaburu, M. (Maite)|||/items/6961aa63-6d15-4579-90a0-596f4cb380c3 García-Mina, J.M. (José María)|||/items/815053fc-2f39-4f00-aed0-c5f6ee370258 |
| author2_role |
author author author author author |
| dc.contributor.none.fl_str_mv |
Dadun. Depósito Académico Digital Universidad de Navarra |
| dc.subject.none.fl_str_mv |
Humic substances Humic acids Foliar application Root application Root growth Shoot growth Jasmonic acid Salicylic acid |
| topic |
Humic substances Humic acids Foliar application Root application Root growth Shoot growth Jasmonic acid Salicylic acid |
| description |
Humic substances (HS, fulvic and humic acids) are widely used as fertilizers or plant growth stimulants, although their mechanism of action still remains partially unknown. Humic substances may be applied either directly to the soil or as foliar sprays. Despite both kind of application are commonly used in agricultural practices, most of the studies regarding the elicited response in plants induced by HS are based on the root-application of these substances. The present work aimed at discriminating between the mechanisms of action of foliar application versus root application of a sedimentary humic acid (SHA) on plant development. For this purpose, six markers related to plant phenotype, plant morphology, hormonal balance and root-plasma membrane H+-ATPase were selected. Both application strategies improved the shoot and root growth. Foliar applied- and root applied-SHA shared the capacity to increase the concentration of indole-3-acetic acid in roots and cytokinins in shoots. However, foliar application did not lead to short-term increases in either abscisic acid root-concentration or root-plasma membrane H+-ATPase activity which are, however, two crucial effects triggered by SHA root-application. Both application modes increased the root concentrations of jasmonic acid and jasmonoyl-isoleucine. These hormonal changes caused by foliar application could be a stress-related symptom and connected to the loss of leaves trichomes and the diminution of chloroplasts size seen by scanning electron microscopy. These results support the hypothesis that the beneficial effects of SHA applied to roots or leaves may result from plant adaptation to a mild transient stress caused by SHA application. |
| publishDate |
2020 |
| dc.date.none.fl_str_mv |
2020 2020-06-11 2020 2020-01-01 2020 2020-01-01 |
| dc.type.none.fl_str_mv |
journal article http://purl.org/coar/resource_type/c_6501 |
| dc.type.openaire.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| dc.identifier.none.fl_str_mv |
https://hdl.handle.net/10171/59037 |
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https://hdl.handle.net/10171/59037 |
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Inglés eng |
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Inglés |
| language |
eng |
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open access http://purl.org/coar/access_right/c_abf2 |
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info:eu-repo/semantics/openAccess |
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open access http://purl.org/coar/access_right/c_abf2 |
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openAccess |
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application/pdf |
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reponame:Dadun. Depósito Académico Digital de la Universidad de Navarra instname:Universidad de Navarra |
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