A Jasmonate-Induced Defense Elicitation in Mature Leaves Reduces Carbon Export and Alters Sink Priority in Grape (<i>Vitis vinifera</i> Chardonnay)

This work aims to understand how <i>Vitis vinifera</i> (Chardonnay) vines prioritise the export and distribution of recently fixed photoassimilate between root tissue, fruit, and defence, following the elicitation of a defence response. Jasmonic acid (JA) and its methyl ester, MeJA, are...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Nick Gould, Michael R. Thorpe, Joe T. Taylor, Helen L. Boldingh, Catherine M. McKenzie, Tony Reglinski
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	carbon partitioning jasmonate jasmonic acid methyl jasmonate plant defence sink Botany QK1-989
Acceso en línea:	https://doaj.org/article/49edf93ebf614710b8db7189e3fdae48
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:49edf93ebf614710b8db7189e3fdae48
record_format	dspace
spelling	oai:doaj.org-article:49edf93ebf614710b8db7189e3fdae482021-11-25T18:46:20ZA Jasmonate-Induced Defense Elicitation in Mature Leaves Reduces Carbon Export and Alters Sink Priority in Grape (<i>Vitis vinifera</i> Chardonnay)10.3390/plants101124062223-7747https://doaj.org/article/49edf93ebf614710b8db7189e3fdae482021-11-01T00:00:00Zhttps://www.mdpi.com/2223-7747/10/11/2406https://doaj.org/toc/2223-7747This work aims to understand how <i>Vitis vinifera</i> (Chardonnay) vines prioritise the export and distribution of recently fixed photoassimilate between root tissue, fruit, and defence, following the elicitation of a defence response. Jasmonic acid (JA) and its methyl ester, MeJA, are endogenous plant hormones, known collectively as jasmonates, that have signalling roles in plant defence and consequently are often used to prime plant defence systems. Here, we use exogenous jasmonate application to mature source leaves of Chardonnay grapevines to elucidate the prioritisation strategy of carbon allocation between plant defence and growth. Our results demonstrate that jasmonate application to Chardonnay leaves can elicit a defence response to <i>Botrytis cinerea,</i> but the effect was localised to the jasmonate-treated area. We found no evidence of a systemic defence response in non-treated mature leaves or young growing tissue. JA application reduced the photosynthetic rate of the treated leaf and reduced the export rate of recently fixed carbon-11 from the leaf. Following JA application, a greater proportion of available recently fixed carbon was allocated to the roots, suggesting an increase in sink strength of the roots. Relative sink strength of the berries did not change; however, an increase in berry sugar was observed seven days after JA treatment. We conclude that the data provide evidence for a “high sugar resistance” model in the mature treated leaves of the vine, since the export of carbon was reduced to ensure an elevated defence response in the treated leaf. The increase in berry sugar concentration seven days after treatment can be explained by the initial prioritisation of a greater portion of the exported carbon to storage in the roots, making it available for remobilisation to the berries once the challenge to defence had passed.Nick GouldMichael R. ThorpeJoe T. TaylorHelen L. BoldinghCatherine M. McKenzieTony ReglinskiMDPI AGarticlecarbon partitioningjasmonatejasmonic acidmethyl jasmonateplant defencesinkBotanyQK1-989ENPlants, Vol 10, Iss 2406, p 2406 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	carbon partitioning jasmonate jasmonic acid methyl jasmonate plant defence sink Botany QK1-989
spellingShingle	carbon partitioning jasmonate jasmonic acid methyl jasmonate plant defence sink Botany QK1-989 Nick Gould Michael R. Thorpe Joe T. Taylor Helen L. Boldingh Catherine M. McKenzie Tony Reglinski A Jasmonate-Induced Defense Elicitation in Mature Leaves Reduces Carbon Export and Alters Sink Priority in Grape (<i>Vitis vinifera</i> Chardonnay)
description	This work aims to understand how <i>Vitis vinifera</i> (Chardonnay) vines prioritise the export and distribution of recently fixed photoassimilate between root tissue, fruit, and defence, following the elicitation of a defence response. Jasmonic acid (JA) and its methyl ester, MeJA, are endogenous plant hormones, known collectively as jasmonates, that have signalling roles in plant defence and consequently are often used to prime plant defence systems. Here, we use exogenous jasmonate application to mature source leaves of Chardonnay grapevines to elucidate the prioritisation strategy of carbon allocation between plant defence and growth. Our results demonstrate that jasmonate application to Chardonnay leaves can elicit a defence response to <i>Botrytis cinerea,</i> but the effect was localised to the jasmonate-treated area. We found no evidence of a systemic defence response in non-treated mature leaves or young growing tissue. JA application reduced the photosynthetic rate of the treated leaf and reduced the export rate of recently fixed carbon-11 from the leaf. Following JA application, a greater proportion of available recently fixed carbon was allocated to the roots, suggesting an increase in sink strength of the roots. Relative sink strength of the berries did not change; however, an increase in berry sugar was observed seven days after JA treatment. We conclude that the data provide evidence for a “high sugar resistance” model in the mature treated leaves of the vine, since the export of carbon was reduced to ensure an elevated defence response in the treated leaf. The increase in berry sugar concentration seven days after treatment can be explained by the initial prioritisation of a greater portion of the exported carbon to storage in the roots, making it available for remobilisation to the berries once the challenge to defence had passed.
format	article
author	Nick Gould Michael R. Thorpe Joe T. Taylor Helen L. Boldingh Catherine M. McKenzie Tony Reglinski
author_facet	Nick Gould Michael R. Thorpe Joe T. Taylor Helen L. Boldingh Catherine M. McKenzie Tony Reglinski
author_sort	Nick Gould
title	A Jasmonate-Induced Defense Elicitation in Mature Leaves Reduces Carbon Export and Alters Sink Priority in Grape (<i>Vitis vinifera</i> Chardonnay)
title_short	A Jasmonate-Induced Defense Elicitation in Mature Leaves Reduces Carbon Export and Alters Sink Priority in Grape (<i>Vitis vinifera</i> Chardonnay)
title_full	A Jasmonate-Induced Defense Elicitation in Mature Leaves Reduces Carbon Export and Alters Sink Priority in Grape (<i>Vitis vinifera</i> Chardonnay)
title_fullStr	A Jasmonate-Induced Defense Elicitation in Mature Leaves Reduces Carbon Export and Alters Sink Priority in Grape (<i>Vitis vinifera</i> Chardonnay)
title_full_unstemmed	A Jasmonate-Induced Defense Elicitation in Mature Leaves Reduces Carbon Export and Alters Sink Priority in Grape (<i>Vitis vinifera</i> Chardonnay)
title_sort	jasmonate-induced defense elicitation in mature leaves reduces carbon export and alters sink priority in grape (<i>vitis vinifera</i> chardonnay)
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/49edf93ebf614710b8db7189e3fdae48
work_keys_str_mv	AT nickgould ajasmonateinduceddefenseelicitationinmatureleavesreducescarbonexportandalterssinkpriorityingrapeivitisviniferaichardonnay AT michaelrthorpe ajasmonateinduceddefenseelicitationinmatureleavesreducescarbonexportandalterssinkpriorityingrapeivitisviniferaichardonnay AT joettaylor ajasmonateinduceddefenseelicitationinmatureleavesreducescarbonexportandalterssinkpriorityingrapeivitisviniferaichardonnay AT helenlboldingh ajasmonateinduceddefenseelicitationinmatureleavesreducescarbonexportandalterssinkpriorityingrapeivitisviniferaichardonnay AT catherinemmckenzie ajasmonateinduceddefenseelicitationinmatureleavesreducescarbonexportandalterssinkpriorityingrapeivitisviniferaichardonnay AT tonyreglinski ajasmonateinduceddefenseelicitationinmatureleavesreducescarbonexportandalterssinkpriorityingrapeivitisviniferaichardonnay AT nickgould jasmonateinduceddefenseelicitationinmatureleavesreducescarbonexportandalterssinkpriorityingrapeivitisviniferaichardonnay AT michaelrthorpe jasmonateinduceddefenseelicitationinmatureleavesreducescarbonexportandalterssinkpriorityingrapeivitisviniferaichardonnay AT joettaylor jasmonateinduceddefenseelicitationinmatureleavesreducescarbonexportandalterssinkpriorityingrapeivitisviniferaichardonnay AT helenlboldingh jasmonateinduceddefenseelicitationinmatureleavesreducescarbonexportandalterssinkpriorityingrapeivitisviniferaichardonnay AT catherinemmckenzie jasmonateinduceddefenseelicitationinmatureleavesreducescarbonexportandalterssinkpriorityingrapeivitisviniferaichardonnay AT tonyreglinski jasmonateinduceddefenseelicitationinmatureleavesreducescarbonexportandalterssinkpriorityingrapeivitisviniferaichardonnay
_version_	1718410709079949312

A Jasmonate-Induced Defense Elicitation in Mature Leaves Reduces Carbon Export and Alters Sink Priority in Grape (<i>Vitis vinifera</i> Chardonnay)

Ejemplares similares