La asimilación de nitrógeno y el estrés abiótico, particularmente la sequía, son dos de los factores que más limitan el crecimiento de las plantas en el género Lotus. De ahí que la disponibilidad de nitrógeno sea de vital importancia para la supervivencia de las mismas y que éstas hayan desarrollado diferentes mecanismos de regulación...
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January 17, 2018 (v1)PublicationUploaded on: December 2, 2022
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March 16, 2017 (v1)Publication
It is well established that the plastidic isoform of glutamine synthetase (GS2) is the enzyme in charge of photorespiratory ammonium reassimilation in plants. The metabolic events associated to photorespiratory NH4+ accumulation were analyzed in a Lotus japonicus photorespiratory mutant lacking GS2. The mutant plants accumulated high levels of...
Uploaded on: March 27, 2023 -
June 15, 2021 (v1)Publication
: Several aspects of the legume–rhizobia symbiosis are far from being completely understood, such as the transport of compounds through the symbiosome membrane and the molecular actors (receptors, transcription factors and hormones) involved in the systemic regulation of nodulation. In this work, the transcriptomes of L. japonicus plants...
Uploaded on: March 27, 2023 -
January 10, 2019 (v1)Publication
Background: Asparagine is a very important nitrogen transport and storage compound in plants due to its high nitrogen/carbon ratio and stability. Asparagine intracellu lar concentration depends on a balance between asparagine biosynthesis and degradation. The main enzymes involved in asparagine metabolism are as paragine synthetase...
Uploaded on: March 27, 2023 -
February 27, 2015 (v1)Publication
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Uploaded on: December 4, 2022 -
November 3, 2020 (v1)Publication
An adequate carbon supply is fundamental for plants to thrive under ammonium stress. In this work, we studied the mechanisms involved in tomato (Solanum lycopersicum L.) response to ammonium toxicity when grown under ambient or elevated CO2 conditions (400 or 800 p.p.m. CO2). Tomato roots were observed to be the primary organ dealing with...
Uploaded on: March 26, 2023 -
October 7, 2016 (v1)Publication
Glutamine synthetase (GS) is the key enzyme involved in the assimilation of ammonia derived either from nitrate reduction, N2 fixation, photorespiration or asparagine breakdown. A small gene family is encoding for different cytosolic (GS1) or plastidic (GS2) isoforms in legumes. We summarize here the recent advances carried out concerning the...
Uploaded on: December 4, 2022 -
April 28, 2017 (v1)Publication
Nitrogen is one of the most important nutrients for plants and, in natural soils, its availability is often a major limiting factor for plant growth. Here we examine the effect of different forms of nitrogen nutrition and of photorespiration on gene expression in the model legume Lotus japonicus with the aim of identifying regulatory candidate...
Uploaded on: December 4, 2022 -
November 17, 2016 (v1)Publication
This paper was aimed to investigate the possible implications of the lack of plastidic glutamine synthetase (GS2) in phenolic metabolism during stress responses in the model legume Lotus japonicus. Important changes in the transcriptome were detected in a GS2 mutant called Ljgln2-2, compared to the wild type, in response to two separate...
Uploaded on: March 27, 2023