ArticleJournal of experimental botany2015
Two cytosolic glutamine synthetase isoforms play specific roles for seed germination and seed yield structure in Arabidopsis.
Article in Journal of experimental botany, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.
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Who cites it
37 citing papers in PubMed, 98 citations in OpenAlex.
- Phylogenetic reconciliation provides new insights into the evolutionary diversification of the glutamine synthetase gene family in seed plants.The FEBS journal · 2026Article
- Model-to-crop conserved NUE Regulons enhance machine learning predictions of nitrogen use efficiency.The Plant cell · 2025Article
- Genome-wide exploration of soybean domestication traits: integrating association mapping and SNP × SNP interaction analyses.Plant molecular biology · 2025Article
- Dynamic proteome and acetylome profiling reveals key regulators of sucrose accumulation in sugarcane.Plant cell reports · 2025Article
- Breaking the association between gametocidal gene(s) and leaf rust resistance gene (Molecular breeding : new strategies in plant improvement · 2024Article
- Systematic characterization of Gossypium GLN family genes reveals a potential function of GhGLN1.1a regulates nitrogen use efficiency in cotton.BMC plant biology · 2024Article
- Potentiating Biosynthesis of Alkaloids and Polyphenolic Substances inMolecules (Basel, Switzerland) · 2023Article
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- The Landscape of Autophagy-Related (ATG) Genes and Functional Characterization ofInternational journal of molecular sciences · 2022Article
- Identification of long non-coding RNA-microRNA-mRNA regulatory modules and their potential roles in drought stress response in wheat (Frontiers in plant science · 2022Article
- Cytosolic Glutamine Synthetase GS1;3 Is Involved in Rice Grain Ripening and Germination.Frontiers in plant science · 2022Article
- A New Perspective on the Role of Glutamine Synthetase in Nitrogen Remobilization in Wheat (International journal of molecular sciences · 2021Article
- Excessive ammonium assimilation by plastidic glutamine synthetase causes ammonium toxicity in Arabidopsis thaliana.Nature communications · 2021Article
- Nonaqueous fractionation and overexpression of fluorescent-tagged enzymes reveals the subcellular sites of L-theanine biosynthesis in tea.Plant biotechnology journal · 2021Article
- Article
- Localization, Gene Expression, and Functions of Glutamine Synthetase Isozymes in Wheat Grain (Frontiers in plant science · 2021Article
- Nitrogen Regulating the Expression and Localization of Four Glutamine Synthetase Isoforms in Wheat (International journal of molecular sciences · 2020Article
- Dissecting the Seed Maturation and Germination Processes in the Non-OrthodoxInternational journal of molecular sciences · 2020Article
- The Peptide Hormone Receptor CEPR1 Functions in the Reproductive Tissue to Control Seed Size and Yield.Plant physiology · 2020Article
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Nitrogen (N) remobilization from reserves to sinks is essential for seedling establishment and seed production. Cytosolic glutamine synthetase (GS1) is up-regulated during both seed germination and seed filling in plants. However, the specific roles of the individual GS1 isogenes with respect to N remobilization, early seedling vigour, and final seed productivity are not known. In this study, impairment of seed germination and seedling establishment is demonstrated in the single knockout mutant gln1;2, and the double knockout mutant gln1;1:gln1;2. The negative effect of Gln1;2 deficiency was associated with reduced N remobilization from the cotyledons and could be fully alleviated by exogenous N supply. Following reproductive growth, both the single and double Gln1;2-knockout mutants showed decreased seed yield due to fewer siliques, less seeds per silique, and lower dry weight per seed. The gln1;1 single mutant had normal seed yield structure but primary root development during seed germination was reduced in the presence of external N. Gln1;2 promoter-green fluorescent protein constructs showed that Gln1;2 localizes to the vascular cells of roots, petals, and stamens. It is concluded that Gln1;2 plays an important role in N remobilization for both seedling establishment and seed production in Arabidopsis.
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