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Biblioteca (s) : |
INIA La Estanzuela. |
Fecha actual : |
09/08/2021 |
Actualizado : |
06/09/2022 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Circulación / Nivel : |
Internacional - -- |
Autor : |
WATERMAN, J.M.; CIBILS-STEWART, X.; CAZZONELLI, C.I.; HARTLEY, S.E.; JOHNSON, S.N. |
Afiliación : |
JAMIE M. WATERMAN, Hawkesbury Institute for the Environment, Western Sydney University, Locked Bag 1797, Penrith, New South Wales 2751 Australia.; XIMENA CIBILS-STEWART, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay./ Hawkesbury Institute for the Environment, Western Sydney University, Locked Bag 1797, Penrith, New South Wales 2751 Australia.; CHRISTOPHER I. CAZZONELLI, Hawkesbury Institute for the Environment, Western Sydney University, Locked Bag 1797, Penrith, New South Wales 2751 Australia.; SUSAN E. HARTLEY, Department of Animal and Plant Sciences, University of Sheffield, Western Bank, Sheffield S10 2TN UK.; SCOTT N. JOHNSON, Hawkesbury Institute for the Environment, Western Sydney University, Locked Bag 1797, Penrith, New South Wales 2751 Australia. |
Título : |
Short-term exposure to silicon rapidly enhances plant resistance to herbivory. |
Fecha de publicación : |
2021 |
Fuente / Imprenta : |
Ecology, 2021. Open Access. Doi: https://doi.org/10.1002/ecy.3438. |
DOI : |
10.1002/ecy.3438. |
Idioma : |
Inglés |
Notas : |
Article history: Manuscript received 25 February 2021; Revised 29 April 2021; Accepted 25 May 2021. |
Contenido : |
Abstract: Silicon (Si) can adversely affect insect herbivores, particularly in plants that evolved the ability to accumulate large quantities of Si. Very rapid herbivore-induced accumulation of Si has recently been demonstrated, but the level of protection against herbivory this affords plants remains unknown. Brachypodium distachyon, a model Si hyperaccumulating grass, was exposed to the chewing herbivore, Helicoverpa armigera, and grown under three
conditions: supplied Si over 34 d (+Si), not supplied Si (-Si), or supplied Si once herbivory began (-Si +Si). We evaluated the effectiveness of each Si treatment at reducing herbivore performance and measured Si-based defenses and phenolics (another form of defense often reduced by Si). Although Si concentrations remained lower, within 72 h of exposure to Si, -Si +Si plants were as resistant to herbivory as +Si plants. Both +Si and -Si ? +Si treatments reduced herbivore damage and growth, and increased mandible wear compared to Si. After 6 h, herbivory increased filled Si cell density in -Si ? +Si plants, and within 24 h, -Si ? +Si plants reached similar filled Si cell densities to +Si plants, although decreased phenolics only occurred in +Si plants. We demonstrate that plants with short-term Si exposure can rapidly accumulate Si-based antiherbivore defenses as effectively as plants with long-term exposure. |
Palabras claves : |
Helicoverpa armigera; Herbivory; Plant defense; Silica cells; Silicon. |
Thesagro : |
ENTOMOLOGIA. |
Asunto categoría : |
H10 Plagas de las plantas |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/16719/1/Ecology-2021-Waterman-Short8208term-exposure-to-silicon-rapidly-enhances-plant-resistance-to-herbivory.pdf
https://esajournals.onlinelibrary.wiley.com/doi/epdf/10.1002/ecy.3438
|
Marc : |
LEADER 02225naa a2200265 a 4500 001 1062342 005 2022-09-06 008 2021 bl uuuu u00u1 u #d 024 7 $a10.1002/ecy.3438.$2DOI 100 1 $aWATERMAN, J.M. 245 $aShort-term exposure to silicon rapidly enhances plant resistance to herbivory.$h[electronic resource] 260 $c2021 500 $aArticle history: Manuscript received 25 February 2021; Revised 29 April 2021; Accepted 25 May 2021. 520 $aAbstract: Silicon (Si) can adversely affect insect herbivores, particularly in plants that evolved the ability to accumulate large quantities of Si. Very rapid herbivore-induced accumulation of Si has recently been demonstrated, but the level of protection against herbivory this affords plants remains unknown. Brachypodium distachyon, a model Si hyperaccumulating grass, was exposed to the chewing herbivore, Helicoverpa armigera, and grown under three conditions: supplied Si over 34 d (+Si), not supplied Si (-Si), or supplied Si once herbivory began (-Si +Si). We evaluated the effectiveness of each Si treatment at reducing herbivore performance and measured Si-based defenses and phenolics (another form of defense often reduced by Si). Although Si concentrations remained lower, within 72 h of exposure to Si, -Si +Si plants were as resistant to herbivory as +Si plants. Both +Si and -Si ? +Si treatments reduced herbivore damage and growth, and increased mandible wear compared to Si. After 6 h, herbivory increased filled Si cell density in -Si ? +Si plants, and within 24 h, -Si ? +Si plants reached similar filled Si cell densities to +Si plants, although decreased phenolics only occurred in +Si plants. We demonstrate that plants with short-term Si exposure can rapidly accumulate Si-based antiherbivore defenses as effectively as plants with long-term exposure. 650 $aENTOMOLOGIA 653 $aHelicoverpa armigera 653 $aHerbivory 653 $aPlant defense 653 $aSilica cells 653 $aSilicon 700 1 $aCIBILS-STEWART, X. 700 1 $aCAZZONELLI, C.I. 700 1 $aHARTLEY, S.E. 700 1 $aJOHNSON, S.N. 773 $tEcology, 2021. Open Access. Doi: https://doi.org/10.1002/ecy.3438.
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