ArticleBMC plant biology2011
The glutamine synthetase gene family in Populus.
Article in BMC plant biology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.
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Who cites it
35 citing papers in PubMed, 74 citations in OpenAlex.
- Functional characterization of PpGS2 promoter in response to hormonal and environmental signals in Kentucky bluegrass.BMC plant biology · 2026Article
- Phylogenetic reconciliation provides new insights into the evolutionary diversification of the glutamine synthetase gene family in seed plants.The FEBS journal · 2026Article
- Article
- Loss of Arabidopsis ACR11 results in altered C/N balance and high sensitivity to nitrogen toxicity.Frontiers in plant science · 2025Article
- The Functional Characterization of MaGS2 and Its Role as a Negative Regulator ofPlants (Basel, Switzerland) · 2024Article
- Integrated analyses reveal the response of peanut to phosphorus deficiency on phenotype, transcriptome and metabolome.BMC plant biology · 2022Article
- Identification of the glutamine synthetase (GS) gene family in four wheat species and functional analysis of Ta4D.GSe in Arabidopsis thaliana.Plant molecular biology · 2022Article
- Wheat glutamine synthetase TaGSr-4B is a candidate gene for a QTL of thousand grain weight on chromosome 4B.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2022Article
- New Insight into Aspartate Metabolic Pathways inInternational journal of molecular sciences · 2022Article
- Root GS and NADH-GDH Play Important Roles in Enhancing the Ammonium Tolerance in Three Bedding Plants.International journal of molecular sciences · 2022Article
- Nitrogen Assimilation Related Genes inPlants (Basel, Switzerland) · 2021Article
- Seasonal senescence of leaves and roots of Populus trichocarpa-is the scenario the same or different?Tree physiology · 2020Article
- Seasonal nitrogen remobilization and the role of auxin transport in poplar trees.Journal of experimental botany · 2020Article
- Various effects of the expression of the xyloglucanase gene from Penicillium canescens in transgenic aspen under semi-natural conditions.BMC plant biology · 2020Article
- Regulation of the leaf proteome by inoculation of Populus × canescens with two Paxillus involutus isolates differing in root colonization rates.Mycorrhiza · 2019Article
- Article
- Low assimilation efficiency of photorespiratory ammonia in conifer leaves.Journal of plant research · 2018Article
- Three cytosolic glutamine synthetase isoforms localized in different-order veins act together for N remobilization and seed filling in Arabidopsis.Journal of experimental botany · 2018Article
- Nitrogen Metabolism and Biomass Production in Forest Trees.Frontiers in plant science · 2018Article
- The Effect of PoplarFrontiers in plant science · 2018Article
Corrections and comments
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Authors and funding
6 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundGlutamine synthetase (GS; EC: 6.3.1.2, L-glutamate: ammonia ligase ADP-forming) is a key enzyme in ammonium assimilation and metabolism of higher plants. The current work was undertaken to develop a more comprehensive understanding of molecular and biochemical features of GS gene family in poplar, and to characterize the developmental regulation of GS expression in various tissues and at various times during the poplar perennial growth.
resultsThe GS gene family consists of 8 different genes exhibiting all structural and regulatory elements consistent with their roles as functional genes. Our results indicate that the family members are organized in 4 groups of duplicated genes, 3 of which code for cytosolic GS isoforms (GS1) and 1 which codes for the choroplastic GS isoform (GS2). Our analysis shows that Populus trichocarpa is the first plant species in which it was observed the complete GS family duplicated. Detailed expression analyses have revealed specific spatial and seasonal patterns of GS expression in poplar. These data provide insights into the metabolic function of GS isoforms in poplar and pave the way for future functional studies.
conclusionsOur data suggest that GS duplicates could have been retained in order to increase the amount of enzyme in a particular cell type. This possibility could contribute to the homeostasis of nitrogen metabolism in functions associated to changes in glutamine-derived metabolic products. The presence of duplicated GS genes in poplar could also contribute to diversification of the enzymatic properties for a particular GS isoform through the assembly of GS polypeptides into homo oligomeric and/or hetero oligomeric holoenzymes in specific cell types.
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