ArticleJournal of experimental botany2014
Ethylene negatively regulates aluminium-induced malate efflux from wheat roots and tobacco cells transformed with TaALMT1.
Article in Journal of experimental botany, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.
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26 citing papers in PubMed, 56 citations in OpenAlex.
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- Identification and Analysis of Aluminum-Activated Malate Transporter Gene Family Reveals Functional Diversification in Orchidaceae and the Expression Patterns ofInternational journal of molecular sciences · 2024Article
- The Role of Low-Molecular-Weight Organic Acids in Metal Homeostasis in Plants.International journal of molecular sciences · 2024Review
- Gibberellin-Mediated Sensitivity of Rice Roots to Aluminum Stress.Plants (Basel, Switzerland) · 2024Article
- Recent Updates on ALMT Transporters' Physiology, Regulation, and Molecular Evolution in Plants.Plants (Basel, Switzerland) · 2023Review
- Characterization of Triterpene Saponin Glycyrrhizin Transport byPlants (Basel, Switzerland) · 2022Article
- Signal Transduction in Cereal Plants Struggling with Environmental Stresses: From Perception to Response.Plants (Basel, Switzerland) · 2022Review
- Aluminum in plant: Benefits, toxicity and tolerance mechanisms.Frontiers in plant science · 2022Review
- The emerging role of GABA as a transport regulator and physiological signal.Plant physiology · 2021Review
- Emerging Roles of γ Aminobutyric Acid (GABA) Gated Channels in Plant Stress Tolerance.Plants (Basel, Switzerland) · 2021Review
- Phytohormone signalling and cross-talk to alleviate aluminium toxicity in plants.Plant cell reports · 2021Review
- GmGRP-like gene confers Al tolerance in Arabidopsis.Scientific reports · 2018Article
- Traversing the Links between Heavy Metal Stress and Plant Signaling.Frontiers in plant science · 2018Review
- γ-Aminobutyric acid (GABA) signalling in plants.Cellular and molecular life sciences : CMLS · 2017Review
- Aluminum Complexation with Malate within the Root Apoplast Differs between Aluminum Resistant and Sensitive Wheat Lines.Frontiers in plant science · 2017Article
- Ethylene Mediates Alkaline-Induced Rice Growth Inhibition by Negatively Regulating Plasma Membrane HFrontiers in plant science · 2017Article
- BoALMT1, an Al-Induced Malate Transporter in Cabbage, Enhances Aluminum Tolerance inFrontiers in plant science · 2017Article
- Local Transcriptional Control of YUCCA Regulates Auxin Promoted Root-Growth Inhibition in Response to Aluminium Stress in Arabidopsis.PLoS genetics · 2016Article
- Physiological and Molecular Analysis of Aluminium-Induced Organic Acid Anion Secretion from Grain Amaranth (Amaranthus hypochondriacus L.) Roots.International journal of molecular sciences · 2016Article
Corrections and comments
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Authors and funding
6 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
An important mechanism for Al(3+) tolerance in wheat is exudation of malate anions from the root apex through activation of malate-permeable TaALMT1 channels. Here, the effect of ethylene on Al(3+)-activated efflux of malate was investigated using Al(3+)-tolerant wheat genotype ET8, which has high expression of TaALMT1. Exposure of ET8 plants to Al(3+) enhanced ethylene evolution in root apices. Treatment with the ethylene synthesis precursor 1-aminocyclopropane-1-carboxylic acid (ACC) and ethylene gas suppressed Al(3+)-induced malate efflux from root apices, whereas the intracellular malate concentrations in roots were not affected. Malate efflux from root apices was enhanced in the presence of Al(3+) by two antagonists of ethylene biosynthesis, aminoethoxyvinylglycine (AVG) and 2-aminoisobutyric acid (AIB). An increase in Al accumulation in root apices was observed when treated with ACC, whereas AVG and AIB suppressed Al accumulation in root apices. Al(3+)-induced inhibition of root elongation was ameliorated by pretreatment with AIB. In addition, ethylene donor (Ethrel) also inhibited Al(3+)-induced malate efflux from tobacco cells transformed with TaALMT1. ACC and the anion-channel blocker niflumate had a similar and non-additive effect on Al-induced malate efflux from root apices. Treatment of ET8 plants with ACC enhanced expression of TaALMT1, suggesting that the inhibitory effect of ethylene on Al-induced malate efflux is unlikely to occur at the transcriptional level. These findings indicate that ethylene may behave as a negative regulator of Al(3+)-induced malate efflux by targeting TaALMT1-mediated malate efflux by an unknown mechanism.
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