ArticleBMC plant biology2010
Transcriptome responses to aluminum stress in roots of aspen (Populus tremula).
Article in BMC plant biology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
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22 citing papers in PubMed, 52 citations in OpenAlex.
- Effects of acid and aluminum stress on seed germination and physiological characteristics of seedling growth inPlant signaling & behavior · 2024Article
- Physiological and Transcriptomic Analysis Reveals That Melatonin Alleviates Aluminum Toxicity in Alfalfa (International journal of molecular sciences · 2023Article
- CombinedFrontiers in plant science · 2022Article
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- Tease out the future: How tea research might enable crop breeding for acid soil tolerance.Plant communications · 2021Review
- The role of γ-aminobutyric acid in aluminum stress tolerance in a woody plant, Liriodendron chinense × tulipifera.Horticulture research · 2021Article
- Identification of candidate genes conferring tolerance to aluminum stress in Pinus massoniana inoculated with ectomycorrhizal fungus.BMC plant biology · 2020Article
- Article
- Aluminum stress differentially affects physiological performance and metabolic compounds in cultivars of highbush blueberry.Scientific reports · 2019Article
- Analysis of gene co-expression networks of phosphate starvation and aluminium toxicity responses in Populus spp.PloS one · 2019Article
- Differences in Al sensitivity affect establishment of Populus genotypes on acidic forest land.PloS one · 2018Article
- Genome-wide analysis of MATE transporters and molecular characterization of aluminum resistance in Populus.Journal of experimental botany · 2017Article
- Aluminum, a Friend or Foe of Higher Plants in Acid Soils.Frontiers in plant science · 2017Review
- Functional and Integrative Analysis of the Proteomic Profile of Radish Root under Pb Exposure.Frontiers in plant science · 2016Article
- RNA sequencing of Populus x canadensis roots identifies key molecular mechanisms underlying physiological adaption to excess zinc.PloS one · 2015Article
- Multi-Omics Approach Identifies Molecular Mechanisms of Plant-Fungus Mycorrhizal Interaction.Frontiers in plant science · 2015Article
- Article
- Article
- New insights into aluminum tolerance in rice: the ASR5 protein binds the STAR1 promoter and other aluminum-responsive genes.Molecular plant · 2014Article
- Aluminum exclusion and aluminum tolerance in woody plants.Frontiers in plant science · 2013Article
Corrections and comments
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Authors and funding
9 authors at 7 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundIonic aluminum (mainly Al3+) is rhizotoxic and can be present in acid soils at concentrations high enough to inhibit root growth. Many forest tree species grow naturally in acid soils and often tolerate high concentrations of Al. Previously, we have shown that aspen (Populus tremula) releases citrate and oxalate from roots in response to Al exposure. To obtain further insights into the root responses of aspen to Al, we investigated root gene expression at Al conditions that inhibit root growth.
resultsTreatment of the aspen roots with 500 μM Al induced a strong inhibition of root growth within 6 h of exposure time. The root growth subsequently recovered, reaching growth rates comparable to that of control plants. Changes in gene expression were determined after 6 h, 2 d, and 10 d of Al exposure. Replicated transcriptome analyses using the Affymetrix poplar genome array revealed a total of 175 significantly up-regulated and 69 down-regulated genes, of which 70% could be annotated based on Arabidopsis genome resources. Between 6 h and 2 d, the number of responsive genes strongly decreased from 202 to 26, and then the number of changes remained low. The responses after 6 h were characterized by genes involved in cell wall modification, ion transport, and oxidative stress. Two genes with prolonged induction were closely related to the Arabidopsis Al tolerance genes ALS3 (for Al sensitive 3) and MATE (for multidrug and toxin efflux protein, mediating citrate efflux). Patterns of expression in different plant organs and in response to Al indicated that the two aspen genes are homologs of the Arabidopsis ALS3 and MATE.
conclusionExposure of aspen roots to Al results in a rapid inhibition of root growth and a large change in root gene expression. The subsequent root growth recovery and the concomitant reduction in the number of responsive genes presumably reflect the success of the roots in activating Al tolerance mechanisms. The aspen genes ALS3 and MATE may be important components of these mechanisms.
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