Stem metabolism under drought stress - a paradox of increasing respiratory substrates and decreasing respiratory rates

Rodríguez-Calcerrada, J.; Rodrigues, Ana M.; António, Carla; Perdiguero, Pedro; Pita, Pilar; Collada, Carmen; Li, Meng; Gil, Luis; Ministerio de Economía y Competitividad (España)

Stem metabolism under drought stress - a paradox of increasing respiratory substrates and decreasing respiratory rates

14 Pàg. Centro de Investigación en Sanidad Animal (CISA)

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Main Authors:	Rodríguez-Calcerrada, J., Rodrigues, Ana M., António, Carla, Perdiguero, Pedro, Pita, Pilar, Collada, Carmen, Li, Meng, Gil, Luis
Other Authors:	Ministerio de Economía y Competitividad (España)
Format:	artículo biblioteca
Language:	English
Published:	John Wiley & Sons 2021-06
Subjects:	Droughts, Photosynthesis, Plant Leaves, Quercus, Respiratory Rate, Water, http://metadata.un.org/sdg/4, http://metadata.un.org/sdg/5, http://metadata.un.org/sdg/6, Ensure inclusive and equitable quality education and promote lifelong learning opportunities for all, Achieve gender equality and empower all women and girls, Ensure availability and sustainable management of water and sanitation for all,
Online Access:	http://hdl.handle.net/10261/288070 http://dx.doi.org/10.13039/501100001871 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100003329 https://api.elsevier.com/content/abstract/scopus_id/85088233348
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spelling	dig-inia-es-10261-2880702024-05-14T20:42:44Z Stem metabolism under drought stress - a paradox of increasing respiratory substrates and decreasing respiratory rates Rodríguez-Calcerrada, J. Rodrigues, Ana M. António, Carla Perdiguero, Pedro Pita, Pilar Collada, Carmen Li, Meng Gil, Luis Ministerio de Economía y Competitividad (España) European Commission Fundação para a Ciência e a Tecnologia (Portugal) Rodríguez-Calcerrada, J. [0000-0001-7408-7653] Rodrigues, Ana M. [0000-0003-3257-9777] António, Carla [0000-0001-6747-1243] Perdiguero, Pedro [0000-0002-5471-9550] Pita, Pilar [0000-0001-8238-5044] Collada, Carmen [0000-0003-0236-1312] Droughts Photosynthesis Plant Leaves Quercus Respiratory Rate Water http://metadata.un.org/sdg/4 http://metadata.un.org/sdg/5 http://metadata.un.org/sdg/6 Ensure inclusive and equitable quality education and promote lifelong learning opportunities for all Achieve gender equality and empower all women and girls Ensure availability and sustainable management of water and sanitation for all 14 Pàg. Centro de Investigación en Sanidad Animal (CISA) Metabolic changes underpinning drought-induced variations in stem respiration (Rs ) are unknown. We measured Rs rates and metabolite and gene expression profiles in Ulmus minor Mill. and Quercus ilex L. seedlings subjected to increasing levels of drought stress to better understand how carbon, nitrogen and energy metabolism interact during drought. In both species, only plants showing extreme stress symptoms - i.e. negligible rates of leaf stomatal conductance and photosynthesis, and high stem dehydration (30-50% of maximum water storage) and contraction (50-150 μm week-1 ) - exhibited lower Rs rates than well-watered plants. Abundance of low-molecular weight sugars (e.g. glucose and fructose) and sugar alcohols (e.g. mannitol) increased with drought, at more moderate stress and to a higher extent in Q. ilex than U. minor. Abundance of amino acids increased at more severe stress, more abruptly, and to a higher extent in U. minor, coinciding with leaf senescence, which did not occur in Q. ilex. Organic acids changed less in response to drought: threonate and glycerate increased, and citrate decreased although slightly in both species. Transcripts of genes coding for enzymes of the Krebs cycle decreased in Q. ilex and increased in U. minor in conditions of extreme drought stress. The maintenance of Rs under severe growth and photosynthetic restrictions reveals the importance of stem mitochondrial activity in drought acclimation. The eventual decline in Rs diverts carbon substrates from entering the Krebs cycle that may help to cope with osmotic and oxidative stress during severe drought and to recover hydraulic functionality afterwards. Funding was provided by the project AGL2015‐66925‐R MINECO/FEDER, UE. CA acknowledges support by national funds from Fundação para a Ciência e Tecnologia (FCT) through the FCT Investigator Programme (contract IF/00376/2012/CP0165/CT0003) and the ITQB NOVA R&D unit GREEN‐IT ‘Bioresources for sustainability’ (UID/Multi/04551/2013). AMR acknowledges FCT for the PhD fellowship (PD/BD/114417/2016) and the ITQB NOVA International PhD Programme ‘Plants for Life’ (PD/00035/2013). Peer reviewed 2023-02-02T08:23:27Z 2023-02-02T08:23:27Z 2021-06 artículo http://purl.org/coar/resource_type/c_6501 Physiologia Plantarum 172(2): 391-404 (2021) 0031-9317 http://hdl.handle.net/10261/288070 10.1111/ppl.13145 http://dx.doi.org/10.13039/501100001871 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100003329 32671841 2-s2.0-85088233348 https://api.elsevier.com/content/abstract/scopus_id/85088233348 en #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO//AGL2015‐66925‐R Physiologia plantarum Postprint https://doi.org/10.1111/ppl.13145 Sí open John Wiley & Sons
institution	INIA ES
collection	DSpace
country	España
countrycode	ES
component	Bibliográfico
access	En linea
databasecode	dig-inia-es
tag	biblioteca
region	Europa del Sur
libraryname	Biblioteca del INIA España
language	English
topic	Droughts Photosynthesis Plant Leaves Quercus Respiratory Rate Water http://metadata.un.org/sdg/4 http://metadata.un.org/sdg/5 http://metadata.un.org/sdg/6 Ensure inclusive and equitable quality education and promote lifelong learning opportunities for all Achieve gender equality and empower all women and girls Ensure availability and sustainable management of water and sanitation for all Droughts Photosynthesis Plant Leaves Quercus Respiratory Rate Water http://metadata.un.org/sdg/4 http://metadata.un.org/sdg/5 http://metadata.un.org/sdg/6 Ensure inclusive and equitable quality education and promote lifelong learning opportunities for all Achieve gender equality and empower all women and girls Ensure availability and sustainable management of water and sanitation for all
spellingShingle	Droughts Photosynthesis Plant Leaves Quercus Respiratory Rate Water http://metadata.un.org/sdg/4 http://metadata.un.org/sdg/5 http://metadata.un.org/sdg/6 Ensure inclusive and equitable quality education and promote lifelong learning opportunities for all Achieve gender equality and empower all women and girls Ensure availability and sustainable management of water and sanitation for all Droughts Photosynthesis Plant Leaves Quercus Respiratory Rate Water http://metadata.un.org/sdg/4 http://metadata.un.org/sdg/5 http://metadata.un.org/sdg/6 Ensure inclusive and equitable quality education and promote lifelong learning opportunities for all Achieve gender equality and empower all women and girls Ensure availability and sustainable management of water and sanitation for all Rodríguez-Calcerrada, J. Rodrigues, Ana M. António, Carla Perdiguero, Pedro Pita, Pilar Collada, Carmen Li, Meng Gil, Luis Stem metabolism under drought stress - a paradox of increasing respiratory substrates and decreasing respiratory rates
description	14 Pàg. Centro de Investigación en Sanidad Animal (CISA)
author2	Ministerio de Economía y Competitividad (España)
author_facet	Ministerio de Economía y Competitividad (España) Rodríguez-Calcerrada, J. Rodrigues, Ana M. António, Carla Perdiguero, Pedro Pita, Pilar Collada, Carmen Li, Meng Gil, Luis
format	artículo
topic_facet	Droughts Photosynthesis Plant Leaves Quercus Respiratory Rate Water http://metadata.un.org/sdg/4 http://metadata.un.org/sdg/5 http://metadata.un.org/sdg/6 Ensure inclusive and equitable quality education and promote lifelong learning opportunities for all Achieve gender equality and empower all women and girls Ensure availability and sustainable management of water and sanitation for all
author	Rodríguez-Calcerrada, J. Rodrigues, Ana M. António, Carla Perdiguero, Pedro Pita, Pilar Collada, Carmen Li, Meng Gil, Luis
author_sort	Rodríguez-Calcerrada, J.
title	Stem metabolism under drought stress - a paradox of increasing respiratory substrates and decreasing respiratory rates
title_short	Stem metabolism under drought stress - a paradox of increasing respiratory substrates and decreasing respiratory rates
title_full	Stem metabolism under drought stress - a paradox of increasing respiratory substrates and decreasing respiratory rates
title_fullStr	Stem metabolism under drought stress - a paradox of increasing respiratory substrates and decreasing respiratory rates
title_full_unstemmed	Stem metabolism under drought stress - a paradox of increasing respiratory substrates and decreasing respiratory rates
title_sort	stem metabolism under drought stress - a paradox of increasing respiratory substrates and decreasing respiratory rates
publisher	John Wiley & Sons
publishDate	2021-06
url	http://hdl.handle.net/10261/288070 http://dx.doi.org/10.13039/501100001871 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100003329 https://api.elsevier.com/content/abstract/scopus_id/85088233348
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_version_	1802819695682781184

Stem metabolism under drought stress - a paradox of increasing respiratory substrates and decreasing respiratory rates

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