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Photoprotection and optimization of sucrose usage contribute to faster recovery of photosynthesis after water deficit at high temperatures in wheat

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Photoprotection and optimization of sucrose usage contribute to faster recovery of photosynthesis after water deficit at high temperatures in wheat. / Correia, Pedro MP; Bernardes Da Silva, Anabela; Roitsch, Thomas et al.
In: Physiologia Plantarum, Vol. 172, No. 2, 30.06.2021, p. 615-628.

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Harvard

Correia, PMP, Bernardes Da Silva, A, Roitsch, T, Carmo-Silva, E & Marques da Silva, J 2021, 'Photoprotection and optimization of sucrose usage contribute to faster recovery of photosynthesis after water deficit at high temperatures in wheat', Physiologia Plantarum, vol. 172, no. 2, pp. 615-628. https://doi.org/10.1111/ppl.13227

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Correia PMP, Bernardes Da Silva A, Roitsch T, Carmo-Silva E, Marques da Silva J. Photoprotection and optimization of sucrose usage contribute to faster recovery of photosynthesis after water deficit at high temperatures in wheat. Physiologia Plantarum. 2021 Jun 30;172(2):615-628. Epub 2020 Oct 26. doi: 10.1111/ppl.13227

Author

Correia, Pedro MP ; Bernardes Da Silva, Anabela ; Roitsch, Thomas et al. / Photoprotection and optimization of sucrose usage contribute to faster recovery of photosynthesis after water deficit at high temperatures in wheat. In: Physiologia Plantarum. 2021 ; Vol. 172, No. 2. pp. 615-628.

Bibtex

@article{7a2228322b4c4e7b96514e70d6f3b329,
title = "Photoprotection and optimization of sucrose usage contribute to faster recovery of photosynthesis after water deficit at high temperatures in wheat",
abstract = "Plants are increasingly exposed to events of elevated temperature and water deficit, which threaten crop productivity. Understanding the ability to rapidly recover from abiotic stress, restoring carbon assimilation and biomass production, is important to unravel crop climate resilience. This study compared the photosynthetic performance of two Triticum aestivum L. cultivars, Sokoll and Paragon, adapted to the climate of Mexico and UK, respectively, exposed to one week water deficit and high temperatures, in isolation or combination. Measurements included photosynthetic assimilation rate, stomatal conductance, in vitro activities of Rubisco (EC 4.1.1.39) and invertase (INV, EC 3.2.1.26), antioxidant capacity and chlorophyll a fluorescence. In both genotypes, under elevated temperatures and water deficit (WD38℃), the photosynthetic limitations were mainly due to stomatal restrictions and to a decrease in the electron transport rate. Chlorophyll a fluorescence parameters clearly indicate differences between the two genotypes in the photoprotection when subjected to WD38℃ and showed faster recovery of Paragon after stress relief. The activity of the cytosolic invertase (CytINV) under these stress conditions was strongly related to the fast photosynthesis recovery of Paragon. Taken together, the results suggest that optimal sucrose export/utilization and increased photoprotection of the electron transport machinery are important components to limit yield fluctuations due to water shortage and elevated temperatures.",
keywords = "Wheat, Heat stress, Drought Stress, Photosynthesis",
author = "Correia, {Pedro MP} and {Bernardes Da Silva}, Anabela and Thomas Roitsch and Elizabete Carmo-Silva and {Marques da Silva}, Jorge",
year = "2021",
month = jun,
day = "30",
doi = "10.1111/ppl.13227",
language = "English",
volume = "172",
pages = "615--628",
journal = "Physiologia Plantarum",
issn = "0031-9317",
publisher = "Blackwell-Wiley",
number = "2",

}

RIS

TY - JOUR

T1 - Photoprotection and optimization of sucrose usage contribute to faster recovery of photosynthesis after water deficit at high temperatures in wheat

AU - Correia, Pedro MP

AU - Bernardes Da Silva, Anabela

AU - Roitsch, Thomas

AU - Carmo-Silva, Elizabete

AU - Marques da Silva, Jorge

PY - 2021/6/30

Y1 - 2021/6/30

N2 - Plants are increasingly exposed to events of elevated temperature and water deficit, which threaten crop productivity. Understanding the ability to rapidly recover from abiotic stress, restoring carbon assimilation and biomass production, is important to unravel crop climate resilience. This study compared the photosynthetic performance of two Triticum aestivum L. cultivars, Sokoll and Paragon, adapted to the climate of Mexico and UK, respectively, exposed to one week water deficit and high temperatures, in isolation or combination. Measurements included photosynthetic assimilation rate, stomatal conductance, in vitro activities of Rubisco (EC 4.1.1.39) and invertase (INV, EC 3.2.1.26), antioxidant capacity and chlorophyll a fluorescence. In both genotypes, under elevated temperatures and water deficit (WD38℃), the photosynthetic limitations were mainly due to stomatal restrictions and to a decrease in the electron transport rate. Chlorophyll a fluorescence parameters clearly indicate differences between the two genotypes in the photoprotection when subjected to WD38℃ and showed faster recovery of Paragon after stress relief. The activity of the cytosolic invertase (CytINV) under these stress conditions was strongly related to the fast photosynthesis recovery of Paragon. Taken together, the results suggest that optimal sucrose export/utilization and increased photoprotection of the electron transport machinery are important components to limit yield fluctuations due to water shortage and elevated temperatures.

AB - Plants are increasingly exposed to events of elevated temperature and water deficit, which threaten crop productivity. Understanding the ability to rapidly recover from abiotic stress, restoring carbon assimilation and biomass production, is important to unravel crop climate resilience. This study compared the photosynthetic performance of two Triticum aestivum L. cultivars, Sokoll and Paragon, adapted to the climate of Mexico and UK, respectively, exposed to one week water deficit and high temperatures, in isolation or combination. Measurements included photosynthetic assimilation rate, stomatal conductance, in vitro activities of Rubisco (EC 4.1.1.39) and invertase (INV, EC 3.2.1.26), antioxidant capacity and chlorophyll a fluorescence. In both genotypes, under elevated temperatures and water deficit (WD38℃), the photosynthetic limitations were mainly due to stomatal restrictions and to a decrease in the electron transport rate. Chlorophyll a fluorescence parameters clearly indicate differences between the two genotypes in the photoprotection when subjected to WD38℃ and showed faster recovery of Paragon after stress relief. The activity of the cytosolic invertase (CytINV) under these stress conditions was strongly related to the fast photosynthesis recovery of Paragon. Taken together, the results suggest that optimal sucrose export/utilization and increased photoprotection of the electron transport machinery are important components to limit yield fluctuations due to water shortage and elevated temperatures.

KW - Wheat

KW - Heat stress

KW - Drought Stress

KW - Photosynthesis

U2 - 10.1111/ppl.13227

DO - 10.1111/ppl.13227

M3 - Journal article

VL - 172

SP - 615

EP - 628

JO - Physiologia Plantarum

JF - Physiologia Plantarum

SN - 0031-9317

IS - 2

ER -