ArticleAnnals of botany2014
Comparative characterization of GmSPX members reveals that GmSPX3 is involved in phosphate homeostasis in soybean.
Article in Annals of botany, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.
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Who cites it
27 citing papers in PubMed, 68 citations in OpenAlex.
- An integrated WGCNA-XGBoost framework for prioritizing candidate stress-responsive hub genes in soybean under nutrient and heavy metal stress conditions.Journal of applied genetics · 2026Article
- The SPX protein family in plants: from phosphate sensors to multifunctional signaling hubs.Stress biology · 2026Review
- Mining key genes associated with phosphorus deficiency through genome-wide identification and characterization of cucumber SPX family genes.BMC plant biology · 2024Article
- Evolution of the SPX gene family and its role in the response mechanism to low phosphorus stress in self-rooted apple stock.BMC genomics · 2024Article
- Co-inoculation of Soybean Seedling with Trichoderma asperellum and Irpex laceratus Promotes the Absorption of Nitrogen and Phosphorus.Current microbiology · 2024Article
- Article
- SPX family response to low phosphorus stress and the involvement ofFrontiers in plant science · 2024Article
- Phosphate starvation response precedes abscisic acid response under progressive mild drought in plants.Nature communications · 2023Article
- Multi-Omics Analysis Reveals Mechanisms of Strong Phosphorus Adaptation in Tea Plant Roots.International journal of molecular sciences · 2023Article
- Genome-Wide Identification of SPX Family Genes and Functional Characterization ofPlants (Basel, Switzerland) · 2023Article
- Dynamic variation of nutrient absorption, metabolomic and transcriptomic indexes of soybean (AoB PLANTS · 2023Article
- Improving phosphorus acquisition efficiency through modification of root growth responses to phosphate starvation in legumes.Frontiers in plant science · 2023Review
- Functional study and elite haplotype identification of soybean phosphate starvation response transcription factorsMolecular breeding : new strategies in plant improvement · 2022Article
- Mechanisms Underlying Soybean Response to Phosphorus Deficiency through Integration of Omics Analysis.International journal of molecular sciences · 2022Review
- GmSPX8, a nodule-localized regulator confers nodule development and nitrogen fixation under phosphorus starvation in soybean.BMC plant biology · 2022Article
- Purple acid phosphatases: roles in phosphate utilization and new emerging functions.Plant cell reports · 2022Review
- New insights into the evolution of SPX gene family from algae to legumes; a focus on soybean.BMC genomics · 2021Article
- Physiological responses and transcriptomic changes reveal the mechanisms underlying adaptation of Stylosanthes guianensis to phosphorus deficiency.BMC plant biology · 2021Article
- Genome-wide identification and characterization of SPX-domain-containing protein gene family inPeerJ · 2021Article
- Dynamic gene expression changes in response to micronutrient, macronutrient, and multiple stress exposures in soybean.Functional & integrative genomics · 2020Article
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Authors and funding
3 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
aimsProteins containing the SPX (SYG1/Pho81/XPR1) domain are vital components in the phosphorus (P) signalling pathway, and regulate phosphate (Pi) homeostasis in plants. However, the characteristics and functions of GmSPX members in soybean (Glycine max) remain largely unknown.
methodsBLAST searching revealed nine GmSPX members in the soybean genome. Subsequently, expression patterns of GmSPX members were investigated in various tissues of soybean grown in nutrient solution or sand culture through quantitative real-time PCR (qPCR) analysis. Sub-cellular localization of GmSPX was examined via transient expression of 35S:GmSPX-GFP in epidermal cells of onion (Allium cepa). Finally, soybean transgenic composite plants were generated to study GmSPX3 functions. KEY
resultsNine GmSPX members were identified, which were classified into three groups based on phylogenetic analysis. Diverse responses of GmSPX members to deficiencies of nutrients (nitrogen, phosphorus, potassium and iron) or inoculation of arbuscular mycorrhizal fungi and rhizobia were observed in soybean. In addition, variations of sub-cellular localization of GmSPX members were found. Among them, GmSPX3, GmSPX7 and GmSPX8 were localized in the nuclei, and the other GmSPX members were confined to the nuclei and cytoplasm. The nuclear-localized and Pi starvation responsive-gene, GmSPX3, was functionally analysed in soybean transgenic composite plants. Overexpression of GmSPX3 led to increased P concentrations in both shoots and roots in the high-P treatment, and increased transcription of seven Pi starvation-responsive genes in soybean hairy roots.
conclusionsTaken together, the results suggest that GmSPX3 is a positive regulator in the P signalling network, and controls Pi homeostasis in soybean.
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