ArticlePlant physiology2016
Increased Sucrose Accumulation Regulates Iron-Deficiency Responses by Promoting Auxin Signaling in Arabidopsis Plants.
Article in Plant physiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.
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45 citing papers in PubMed, 98 citations in OpenAlex.
- Darkness Attenuates the Early Transcriptional Response to Phosphate Deficiency in Soybean Roots.International journal of molecular sciences · 2026Article
- Transcriptomic Response of White Lupin Roots to Short-Term Sucrose Treatment.Plants (Basel, Switzerland) · 2025Article
- Shortcutting Photorespiration Protects Potato Photosynthesis and Tuber Yield Against Heatwave Stress.Global change biology · 2024Article
- Metabolism ofPlants (Basel, Switzerland) · 2024Article
- Transcriptomics Provide Insights into Early Responses to Sucrose Signaling inInternational journal of molecular sciences · 2024Article
- The activation of iron deficiency responses of grapevine rootstocks is dependent to the availability of the nitrogen forms.BMC plant biology · 2024Article
- Article
- Soybean Root Transcriptomics: Insights into Sucrose Signaling at the Crossroads of Nutrient Deficiency and Biotic Stress Responses.Plants (Basel, Switzerland) · 2023Article
- GmABCG5, an ATP-binding cassette G transporter gene, is involved in the iron deficiency response in soybean.Frontiers in plant science · 2023Article
- Effect of the Interaction between Elevated Carbon Dioxide and Iron Limitation on Proteomic Profiling of Soybean.International journal of molecular sciences · 2022Article
- Transcriptome Analysis Reveals Roles of Sucrose in Anthocyanin Accumulation in 'Kuerle Xiangli' (Genes · 2022Article
- Concentration-dependent dual effects of exogenous sucrose on nitrogen metabolism in Andrographis paniculata.Scientific reports · 2022Article
- Inhibition ofLife (Basel, Switzerland) · 2022Article
- Identification of iron and zinc responsive genes in pearl millet using genome-wide RNA-sequencing approach.Frontiers in nutrition · 2022Article
- Genome Editing Targets for Improving Nutrient Use Efficiency and Nutrient Stress Adaptation.Frontiers in genetics · 2022Review
- bHLH Transcription Factor NtMYC2a Regulates Carbohydrate Metabolism during the Pollen Development of Tobacco (Plants (Basel, Switzerland) · 2021Article
- Efficiency of microbial bio-agents as elicitors in plant defense mechanism under biotic stress: A review.Current research in microbial sciences · 2021Review
- Comparing Early Transcriptomic Responses of 18 Soybean (International journal of molecular sciences · 2021Article
- The phyB-dependent induction of HY5 promotes iron uptake by systemically activating FER expression.EMBO reports · 2021Article
- Comparative Study of Several Fe Deficiency Responses in thePlants (Basel, Switzerland) · 2021Article
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Previous studies have identified that auxins acts upstream of nitric oxide in regulating iron deficiency responses in roots, but the upstream signaling molecule of auxins remains unknown. In this study, we showed that Fe deficiency increased sucrose (Suc) level in roots of Arabidopsis (Arabidopsis thaliana). Exogenous application of Suc further stimulated Fe deficiency-induced ferric-chelate-reductase (FCR) activity and expression of Fe acquisition-related genes FRO2, IRT1, and FIT in roots. The opposite patterns were observed in the dark treatment. In addition, FCR activity and expression of Fe acquisition-related genes were higher in the Suc high-accumulating transgenic plant 35S::SUC2 but were lower in the Suc low-accumulating mutant suc2-5 compared with wild-type plants under Fe-deficient conditions. Consequently, Fe deficiency tolerance was enhanced in 35S::SUC2 but was compromised in suc2-5. Exogenous Suc also increased root β-glucuronidase (GUS) activity in auxin-inducible reporter DR5-GUS transgenic plants under Fe deficiency. However, exogenous Suc failed to increase FCR activity and expression of Fe acquisition-related genes in the auxin transport-impaired mutants aux1-7 and pin1-1 as well as in the wild-type plants treated with an auxin transport inhibitor under Fe deficiency. In summary, we found that increased Suc accumulation is required for regulating Fe deficiency responses in plants, with auxins acting downstream in transmitting the Fe deficiency signal.
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