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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
16/07/2018 |
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Actualizado : |
16/07/2018 |
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Tipo de producción científica : |
Documentos |
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Autor : |
INIA (INSTITUTO NACIONAL DE INVESTIGACIÓN AGROPECUARIA); MGAP (MINISTERIO GANADERÍA AGRICULTURA Y PESCA); IPA (INSTITUTO PLAN AGROPECUARIO) |
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Título : |
Características y recomendaciones para el uso de cascarilla de soja. |
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Fecha de publicación : |
2018 |
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Fuente / Imprenta : |
In: INIA (Instituto Nacional de Investigación Agropecuaria).; MGAP (Ministerio Ganadería, Agricultura y Pesca).; IPA (Instituto Plan Agropecuario). Alternativas para enfrentar situaciones de crisis forrajeras. Montevideo (UY): INIA, 2018. |
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Páginas : |
p.10-11 |
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Idioma : |
Español |
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Notas : |
Esta versión es una actualización de la editada en 2015. |
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Palabras claves : |
CASCARILLA DE SOJA; SEQUIA 2018. |
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Thesagro : |
SUPLEMENTACION. |
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Asunto categoría : |
L02 Alimentación animal |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/10829/1/Uso-cascarilla-de-soja-Alternativas-crisis-forrajera-2018.pdf
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Marc : |
LEADER 00868nam a2200181 a 4500
001 1058819
005 2018-07-16
008 2018 bl uuuu u0uu1 u #d
100 1 $aINIA (INSTITUTO NACIONAL DE INVESTIGACIÓN AGROPECUARIA)
245 $aCaracterísticas y recomendaciones para el uso de cascarilla de soja.$h[electronic resource]
260 $aIn: INIA (Instituto Nacional de Investigación Agropecuaria).; MGAP (Ministerio Ganadería, Agricultura y Pesca).; IPA (Instituto Plan Agropecuario). Alternativas para enfrentar situaciones de crisis forrajeras. Montevideo (UY): INIA$c2018
300 $ap.10-11
500 $aEsta versión es una actualización de la editada en 2015.
650 $aSUPLEMENTACION
653 $aCASCARILLA DE SOJA
653 $aSEQUIA 2018
700 1 $aMGAP (MINISTERIO GANADERÍA AGRICULTURA Y PESCA)
700 1 $aIPA (INSTITUTO PLAN AGROPECUARIO)
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Registro original : |
INIA Las Brujas (LB) |
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 | Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha actual : |
22/10/2021 |
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Actualizado : |
25/10/2021 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
JOHNSON, S.N.; WATERMAN, J.M.; WUHRER, R.; ROWE, R.C.; HALL, C.R.; CIBILS-STEWART, X. |
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Afiliación : |
SCOTT N. JOHNSON; JAMIE M. WATERMAN; RICHARD WUHRER; RHIANNON C. ROWE; CASEY R. HALL; XIMENA CIBILS-STEWART, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay./ Hawkesbury Institute for the Environment, Western Sydney University, Penrith, New South Wales, Australia. |
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Título : |
Siliceous and non-nutritious: Nitrogen limitation increases anti-herbivore silicon defences in a model grass. |
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Fecha de publicación : |
2021 |
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Fuente / Imprenta : |
Journal of Ecology, 2021. Doi: https://doi.org/10.1111/1365-2745.13755 |
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DOI : |
10.1111/1365-2745.13755 |
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Idioma : |
Inglés |
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Notas : |
Article history: First published: 29 July 2021/ Received: 24 March 2021/ Accepted: 28 June 2021. |
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Contenido : |
Abstract:
Silicon (Si) accumulation alleviates a diverse array of environmental stresses in many plants, including conferring physical resistance against insect herbivores. It has been hypothesised that grasses, in particular, utilise ?low metabolic cost? Si for structural and defensive roles under nutrient limitation. While carbon (C) concentrations often negatively correlate with Si concentrations, the relationship between nitrogen (N) status and Si is more variable. Moreover, the impacts of N limitation on constitutive physical Si defences (e.g. silica and prickle cells) against herbivores are unknown. We determined how N limitation affected Si deposition in the model grass Brachypodium distachyon and how changes in these constitutive defences impacted insect herbivore Helicoverpa armigera growth rates. We used scanning electron microscopy (SEM) and energy dispersive X-ray spectrometry in conjunction with X-ray mapping (XRM) to quantify physical structures on leaves and determine Si deposition patterns. We also determined how N limitation and Si supply impacted the jasmonic acid (JA) pathway, the master regulator of induced defences against arthropod herbivores.N limitation reduced shoot growth by over 40%, but increased root mass (+21%), leaf Si concentrations (+50%) and the density of silica (+28%) and flattened prickle (+76%) cells. Energy-dispersive X-ray spectroscopy and XRM established that Si was being deposited in these structures, together with hooked prickle cells and macro-hairs. Herbivore relative growth rates (RGR) were more than 115% lower in Si-supplied plants compared to plants without Si supply and negatively correlated with leaf Si concentration and silica cell density. RGR was further reduced by N limitation and positively correlated with leaf N concentrations. Increases in JA concentrations following induction of the JA pathway were at least doubled by N limitation.Synthesis. Si accumulation and deposition were highly regulated by N availability, with N limitation promoting both constitutive Si physical defences and induction of the JA defensive pathway, in line with the resource availability hypothesis. These results indicate that grasses use ?low-cost Si? when resources are limited and suggest that plant productivity may benefit from optimising conventional fertilisers and Si fertilisation. MenosAbstract:
Silicon (Si) accumulation alleviates a diverse array of environmental stresses in many plants, including conferring physical resistance against insect herbivores. It has been hypothesised that grasses, in particular, utilise ?low metabolic cost? Si for structural and defensive roles under nutrient limitation. While carbon (C) concentrations often negatively correlate with Si concentrations, the relationship between nitrogen (N) status and Si is more variable. Moreover, the impacts of N limitation on constitutive physical Si defences (e.g. silica and prickle cells) against herbivores are unknown. We determined how N limitation affected Si deposition in the model grass Brachypodium distachyon and how changes in these constitutive defences impacted insect herbivore Helicoverpa armigera growth rates. We used scanning electron microscopy (SEM) and energy dispersive X-ray spectrometry in conjunction with X-ray mapping (XRM) to quantify physical structures on leaves and determine Si deposition patterns. We also determined how N limitation and Si supply impacted the jasmonic acid (JA) pathway, the master regulator of induced defences against arthropod herbivores.N limitation reduced shoot growth by over 40%, but increased root mass (+21%), leaf Si concentrations (+50%) and the density of silica (+28%) and flattened prickle (+76%) cells. Energy-dispersive X-ray spectroscopy and XRM established that Si was being deposited in these structures, together with hooked prickle cel... Presentar Todo |
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Palabras claves : |
Insect herbivores; Jasmonate; Plant defence; Plant nutrients; Scanning electron microscopy; Silica; Silicon. |
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Thesagro : |
HIERBAS; INSECTOS; NUTRICION DE PLANTAS. |
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Asunto categoría : |
-- |
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Marc : |
LEADER 03387naa a2200325 a 4500
001 1062494
005 2021-10-25
008 2021 bl uuuu u00u1 u #d
024 7 $a10.1111/1365-2745.13755$2DOI
100 1 $aJOHNSON, S.N.
245 $aSiliceous and non-nutritious$bNitrogen limitation increases anti-herbivore silicon defences in a model grass.$h[electronic resource]
260 $c2021
500 $aArticle history: First published: 29 July 2021/ Received: 24 March 2021/ Accepted: 28 June 2021.
520 $aAbstract: Silicon (Si) accumulation alleviates a diverse array of environmental stresses in many plants, including conferring physical resistance against insect herbivores. It has been hypothesised that grasses, in particular, utilise ?low metabolic cost? Si for structural and defensive roles under nutrient limitation. While carbon (C) concentrations often negatively correlate with Si concentrations, the relationship between nitrogen (N) status and Si is more variable. Moreover, the impacts of N limitation on constitutive physical Si defences (e.g. silica and prickle cells) against herbivores are unknown. We determined how N limitation affected Si deposition in the model grass Brachypodium distachyon and how changes in these constitutive defences impacted insect herbivore Helicoverpa armigera growth rates. We used scanning electron microscopy (SEM) and energy dispersive X-ray spectrometry in conjunction with X-ray mapping (XRM) to quantify physical structures on leaves and determine Si deposition patterns. We also determined how N limitation and Si supply impacted the jasmonic acid (JA) pathway, the master regulator of induced defences against arthropod herbivores.N limitation reduced shoot growth by over 40%, but increased root mass (+21%), leaf Si concentrations (+50%) and the density of silica (+28%) and flattened prickle (+76%) cells. Energy-dispersive X-ray spectroscopy and XRM established that Si was being deposited in these structures, together with hooked prickle cells and macro-hairs. Herbivore relative growth rates (RGR) were more than 115% lower in Si-supplied plants compared to plants without Si supply and negatively correlated with leaf Si concentration and silica cell density. RGR was further reduced by N limitation and positively correlated with leaf N concentrations. Increases in JA concentrations following induction of the JA pathway were at least doubled by N limitation.Synthesis. Si accumulation and deposition were highly regulated by N availability, with N limitation promoting both constitutive Si physical defences and induction of the JA defensive pathway, in line with the resource availability hypothesis. These results indicate that grasses use ?low-cost Si? when resources are limited and suggest that plant productivity may benefit from optimising conventional fertilisers and Si fertilisation.
650 $aHIERBAS
650 $aINSECTOS
650 $aNUTRICION DE PLANTAS
653 $aInsect herbivores
653 $aJasmonate
653 $aPlant defence
653 $aPlant nutrients
653 $aScanning electron microscopy
653 $aSilica
653 $aSilicon
700 1 $aWATERMAN, J.M.
700 1 $aWUHRER, R.
700 1 $aROWE, R.C.
700 1 $aHALL, C.R.
700 1 $aCIBILS-STEWART, X.
773 $tJournal of Ecology, 2021. Doi: https://doi.org/10.1111/1365-2745.13755
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