Providing an additional electron sink by the introduction of cyanobacterial Ffavodiirons enhances growth of A. thaliana under various light intensities

The ability of plants to maintain photosynthesis in a dynamically changing environment is of central importance for their growth. As the photosynthetic machinery is a sensitive and early target of adverse environmental conditions as those typically found in the field, photosynthetic efficiency is no...

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Autores principales: Tula, Suresh, Shahinnia, Fahimeh, Melzer, Michael, Rutten, Twan, Gómez, Rodrigo Lionel, Lodeyro, Anabella F., Wirén, Nicolaus von, Carrillo, Néstor, Hajirezaei, Mohammad-Reza
Formato: article artículo publishedVersion
Lenguaje:Inglés
Publicado: Frontiers Media 2020
Materias:
A. thaliana
Cyanobacteria
Flavodiiron proteins
Photosynthesis
Electron sink
Primary metabolism
Biomass
Acceso en línea:http://hdl.handle.net/2133/18755
http://hdl.handle.net/2133/18755
Aporte de:
Repositorio Hipermedial de la Universidad Nacional de Rosario (UNR) de Universidad Nacional de Rosario
id I15-R121-2133-18755
record_format dspace
institution Universidad Nacional de Rosario
institution_str I-15
repository_str R-121
collection Repositorio Hipermedial de la Universidad Nacional de Rosario (UNR)
language Inglés
orig_language_str_mv eng
topic A. thaliana
Cyanobacteria
Flavodiiron proteins
Photosynthesis
Electron sink
Primary metabolism
Biomass
spellingShingle A. thaliana
Cyanobacteria
Flavodiiron proteins
Photosynthesis
Electron sink
Primary metabolism
Biomass
Tula, Suresh
Shahinnia, Fahimeh
Melzer, Michael
Rutten, Twan
Gómez, Rodrigo Lionel
Lodeyro, Anabella F.
Wirén, Nicolaus von
Carrillo, Néstor
Hajirezaei, Mohammad-Reza
Providing an additional electron sink by the introduction of cyanobacterial Ffavodiirons enhances growth of A. thaliana under various light intensities
topic_facet A. thaliana
Cyanobacteria
Flavodiiron proteins
Photosynthesis
Electron sink
Primary metabolism
Biomass
description The ability of plants to maintain photosynthesis in a dynamically changing environment is of central importance for their growth. As the photosynthetic machinery is a sensitive and early target of adverse environmental conditions as those typically found in the field, photosynthetic efficiency is not always optimal. Cyanobacteria, algae, mosses, liverworts and gymnosperms produce flavodiiron proteins (Flvs), a class of electron sinks not represented in angiosperms; these proteins act to mitigate the photoinhibition of photosystem I under high or fluctuating light. Here, genes specifying two cyanobacterial Flvs have been expressed in the chloroplasts of Arabidopsis thaliana in an attempt to improve plant growth. Co-expression of Flv1 and Flv3 enhanced the efficiency of light utilization, boosting the plant’s capacity to accumulate biomass as the growth light intensity was raised. The Flv1/Flv3 transgenics displayed an increased production of ATP, an acceleration of carbohydrate metabolism and a more pronounced partitioning of sucrose into starch. The results suggest that Flvs are able to establish an efficient electron sink downstream of PSI, thereby ensuring efficient photosynthetic electron transport at moderate to high light intensities. The expression of Flvs thus acts to both protect photosynthesis and to control the ATP/NADPH ratio; together, their presence is beneficial for the plant’s growth potential.
format article
artículo
publishedVersion
author Tula, Suresh
Shahinnia, Fahimeh
Melzer, Michael
Rutten, Twan
Gómez, Rodrigo Lionel
Lodeyro, Anabella F.
Wirén, Nicolaus von
Carrillo, Néstor
Hajirezaei, Mohammad-Reza
author_facet Tula, Suresh
Shahinnia, Fahimeh
Melzer, Michael
Rutten, Twan
Gómez, Rodrigo Lionel
Lodeyro, Anabella F.
Wirén, Nicolaus von
Carrillo, Néstor
Hajirezaei, Mohammad-Reza
author_sort Tula, Suresh
title Providing an additional electron sink by the introduction of cyanobacterial Ffavodiirons enhances growth of A. thaliana under various light intensities
title_short Providing an additional electron sink by the introduction of cyanobacterial Ffavodiirons enhances growth of A. thaliana under various light intensities
title_full Providing an additional electron sink by the introduction of cyanobacterial Ffavodiirons enhances growth of A. thaliana under various light intensities
title_fullStr Providing an additional electron sink by the introduction of cyanobacterial Ffavodiirons enhances growth of A. thaliana under various light intensities
title_full_unstemmed Providing an additional electron sink by the introduction of cyanobacterial Ffavodiirons enhances growth of A. thaliana under various light intensities
title_sort providing an additional electron sink by the introduction of cyanobacterial ffavodiirons enhances growth of a. thaliana under various light intensities
publisher Frontiers Media
publishDate 2020
url http://hdl.handle.net/2133/18755
http://hdl.handle.net/2133/18755
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