ArticlePlant physiology2014
Identification of a hydrolyzable tannin, oenothein B, as an aluminum-detoxifying ligand in a highly aluminum-resistant tree, Eucalyptus camaldulensis.
Article in Plant physiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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Who cites it
20 citing papers in PubMed, 54 citations in OpenAlex.
- The Rhus chinensis Genome Provides Insights Into Tannin, Flavonoid Biosynthesis, and Glandular Trichome Development.Plant biotechnology journal · 2026Article
- Article
- Ellagitannin Oligomers fromMolecules (Basel, Switzerland) · 2025Article
- Effects of aluminum on metabolism of reactive oxygen species and reactive nitrogen species in root tips of different Eucalyptus species.BMC plant biology · 2025Article
- MsDUF3700 overexpression enhances aluminum tolerance in alfalfa shoots.Plant cell reports · 2024Article
- Elucidation and reconstitution of hydrolyzable tannin biosynthesis.Plant biotechnology (Tokyo, Japan) · 2024Article
- Heterologous gene expression system for the production of hydrolyzable tannin intermediates in herbaceous model plants.Journal of plant research · 2023Article
- Metabolomic Study of Flavonoids inPlants (Basel, Switzerland) · 2023Article
- Effects of Elevated Aluminum Concentration and Distribution on Root Damage, Cell Wall Polysaccharides, and Nutrient Uptake in Different TolerantInternational journal of molecular sciences · 2022Article
- Metallophenolomics: A Novel Integrated Approach to Study Complexation of Plant Phenolics with Metal/Metalloid Ions.International journal of molecular sciences · 2022Review
- Aluminum in plant: Benefits, toxicity and tolerance mechanisms.Frontiers in plant science · 2022Review
- Metal and Metalloid Toxicity in Plants: An Overview on Molecular Aspects.Plants (Basel, Switzerland) · 2021Review
- Metabolic acclimation supports higher aluminium-induced secretion of citrate and malate in an aluminium-tolerant hybrid clone of Eucalyptus.BMC plant biology · 2021Article
- Article
- Article
- Therapeutic Potential of Polyphenols from Epilobium Angustifolium (Fireweed).Phytotherapy research : PTR · 2016Review
- Glutathione S-transferases and UDP-glycosyltransferases Are Involved in Response to Aluminum Stress in Flax.Frontiers in plant science · 2016Article
- Article
- TRICHOME BIREFRINGENCE-LIKE27 affects aluminum sensitivity by modulating the O-acetylation of xyloglucan and aluminum-binding capacity in Arabidopsis.Plant physiology · 2014Article
- Proportion of phospholipids in the plasma membrane is an important factor in Al tolerance.Plant signaling & behavior · 2014Article
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Eucalyptus camaldulensis is a tree species in the Myrtaceae that exhibits extremely high resistance to aluminum (Al). To explore a novel mechanism of Al resistance in plants, we examined the Al-binding ligands in roots and their role in Al resistance of E. camaldulensis. We identified a novel type of Al-binding ligand, oenothein B, which is a dimeric hydrolyzable tannin with many adjacent phenolic hydroxyl groups. Oenothein B was isolated from root extracts of E. camaldulensis by reverse-phase high-performance liquid chromatography and identified by nuclear magnetic resonance and mass spectrometry analyses. Oenothein B formed water-soluble or -insoluble complexes with Al depending on the ratio of oenothein B to Al and could bind at least four Al ions per molecule. In a bioassay using Arabidopsis (Arabidopsis thaliana), Al-induced inhibition of root elongation was completely alleviated by treatment with exogenous oenothein B, which indicated the capability of oenothein B to detoxify Al. In roots of E. camaldulensis, Al exposure enhanced the accumulation of oenothein B, especially in EDTA-extractable forms, which likely formed complexes with Al. Oenothein B was localized mostly in the root symplast, in which a considerable amount of Al accumulated. In contrast, oenothein B was not detected in three Al-sensitive species, comprising the Myrtaceae tree Melaleuca bracteata, Populus nigra, and Arabidopsis. Oenothein B content in roots of five tree species was correlated with their Al resistance. Taken together, these results suggest that internal detoxification of Al by the formation of complexes with oenothein B in roots likely contributes to the high Al resistance of E. camaldulensis.
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