Chilling temperature remodels phospholipidome of Zea mays seeds during imbibition

Abstract Global warming is a major agricultural issue in the Northern hemisphere where higher temperatures are expected to be associated with restricted water availability. In Europe, for maize, earlier and further northward sowings are forecasted in order to avoid water deficit periods in the crop...

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Autores principales:	Agathe Noblet, Juliette Leymarie, Christophe Bailly
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/19cb1c0335d04658b8ecc765fe0fba2b
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spelling	oai:doaj.org-article:19cb1c0335d04658b8ecc765fe0fba2b2021-12-02T16:06:07ZChilling temperature remodels phospholipidome of Zea mays seeds during imbibition10.1038/s41598-017-08904-z2045-2322https://doaj.org/article/19cb1c0335d04658b8ecc765fe0fba2b2017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-08904-zhttps://doaj.org/toc/2045-2322Abstract Global warming is a major agricultural issue in the Northern hemisphere where higher temperatures are expected to be associated with restricted water availability. In Europe, for maize, earlier and further northward sowings are forecasted in order to avoid water deficit periods in the crop life cycle. However these conditions may compromise seed germination and stand establishment since they will take place at cold temperatures. It is urgent to better understand the molecular bases of response of germinating maize seeds to cold in order to design genotypes adapted to these novel agricultural practices. Here we have performed a global phospholipidomic study to profile changes in membrane reorganisation during seed imbibition at 10 °C of cold-tolerant and -sensitive maize hybrids. Using a Multiple Reaction Monitoring (MRM-MS/MS) method coupled with HPLC we have identified 80 distinct phospholipids. We show that seed sensitivity to cold temperatures during imbibition relies on the accumulation of saturated or poorly unsaturated fatty acids, whatever the phospholipid class. In contrast seeds of cold-tolerant hybrid accumulated polyunsaturated chains which was associated with lower electrolyte leakage during imbibition at 10 °C. The expression of fatty acid desaturase genes provides a molecular model of maize seed sensitivity to imbibitional chilling damage.Agathe NobletJuliette LeymarieChristophe BaillyNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-12 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Agathe Noblet Juliette Leymarie Christophe Bailly Chilling temperature remodels phospholipidome of Zea mays seeds during imbibition
description	Abstract Global warming is a major agricultural issue in the Northern hemisphere where higher temperatures are expected to be associated with restricted water availability. In Europe, for maize, earlier and further northward sowings are forecasted in order to avoid water deficit periods in the crop life cycle. However these conditions may compromise seed germination and stand establishment since they will take place at cold temperatures. It is urgent to better understand the molecular bases of response of germinating maize seeds to cold in order to design genotypes adapted to these novel agricultural practices. Here we have performed a global phospholipidomic study to profile changes in membrane reorganisation during seed imbibition at 10 °C of cold-tolerant and -sensitive maize hybrids. Using a Multiple Reaction Monitoring (MRM-MS/MS) method coupled with HPLC we have identified 80 distinct phospholipids. We show that seed sensitivity to cold temperatures during imbibition relies on the accumulation of saturated or poorly unsaturated fatty acids, whatever the phospholipid class. In contrast seeds of cold-tolerant hybrid accumulated polyunsaturated chains which was associated with lower electrolyte leakage during imbibition at 10 °C. The expression of fatty acid desaturase genes provides a molecular model of maize seed sensitivity to imbibitional chilling damage.
format	article
author	Agathe Noblet Juliette Leymarie Christophe Bailly
author_facet	Agathe Noblet Juliette Leymarie Christophe Bailly
author_sort	Agathe Noblet
title	Chilling temperature remodels phospholipidome of Zea mays seeds during imbibition
title_short	Chilling temperature remodels phospholipidome of Zea mays seeds during imbibition
title_full	Chilling temperature remodels phospholipidome of Zea mays seeds during imbibition
title_fullStr	Chilling temperature remodels phospholipidome of Zea mays seeds during imbibition
title_full_unstemmed	Chilling temperature remodels phospholipidome of Zea mays seeds during imbibition
title_sort	chilling temperature remodels phospholipidome of zea mays seeds during imbibition
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/19cb1c0335d04658b8ecc765fe0fba2b
work_keys_str_mv	AT agathenoblet chillingtemperatureremodelsphospholipidomeofzeamaysseedsduringimbibition AT julietteleymarie chillingtemperatureremodelsphospholipidomeofzeamaysseedsduringimbibition AT christophebailly chillingtemperatureremodelsphospholipidomeofzeamaysseedsduringimbibition
_version_	1718385072553328640

Chilling temperature remodels phospholipidome of Zea mays seeds during imbibition

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