ArticleJournal of experimental botany2012
Haemoglobin modulates NO emission and hyponasty under hypoxia-related stress in Arabidopsis thaliana.
Article in Journal of experimental botany, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers.
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Who cites it
54 citing papers in PubMed, 115 citations in OpenAlex.
- Modulation of GSNOR activity for improved NO homeostasis and flood resilience in plants.Plant signaling & behavior · 2026Review
- Flooding stress resilience and crop improvement.Plant cell reports · 2026Review
- Discrete and cell-specific hypoxic responses in Arabidopsis roots resolved by single-nuclei transcriptomics.The New phytologist · 2026Article
- Reciprocal modulation of responses to nitrate starvation and hypoxia in roots and leaves ofPlant signaling & behavior · 2024Article
- The role of ethylene in the regulation of plant response mechanisms to waterlogging stress.Plant cell reports · 2024Review
- The underestimated role of plant root nitric oxide emission under low-oxygen stress.Frontiers in plant science · 2024Article
- Morphological and molecular response mechanisms of the root system of differentFrontiers in plant science · 2024Article
- Fine-tuned nitric oxide and hormone interface in plant root development and regeneration.Journal of experimental botany · 2023Review
- From a different angle: genetic diversity underlies differentiation of waterlogging-induced epinasty in tomato.Frontiers in plant science · 2023Article
- Functions of nitric oxide-mediated post-translational modifications under abiotic stress.Frontiers in plant science · 2023Review
- Ethylene augments root hypoxia tolerance via growth cessation and reactive oxygen species amelioration.Plant physiology · 2022Article
- Flooding Tolerance in Sweet Potato (Antioxidants (Basel, Switzerland) · 2022Article
- Redox and Hormonal Changes in the Transcriptome of Grape (Plants (Basel, Switzerland) · 2022Article
- Lessons from Comparison of Hypoxia Signaling in Plants and Mammals.Plants (Basel, Switzerland) · 2021Review
- Transcriptome Analysis ofPlants (Basel, Switzerland) · 2021Article
- Expression of soybean plant hemoglobin gene family under abiotic stresses.Plant biotechnology (Tokyo, Japan) · 2021Article
- The Oxidative Paradox in Low Oxygen Stress in Plants.Antioxidants (Basel, Switzerland) · 2021Review
- Plant Nitric Oxide Signaling under Drought Stress.Plants (Basel, Switzerland) · 2021Review
- Nitric oxide function during oxygen deprivation in physiological and stress processes.Journal of experimental botany · 2021Review
- The role of ethylene in metabolic acclimations to low oxygen.The New phytologist · 2021Review
Corrections and comments
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Authors and funding
8 authors at 4 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Nitric oxide (NO) and ethylene are signalling molecules that are synthesized in response to oxygen depletion. Non-symbiotic plant haemoglobins (Hbs) have been demonstrated to act in roots under oxygen depletion to scavenge NO. Using Arabidopsis thaliana plants, the online emission of NO or ethylene was directly quantified under normoxia, hypoxia (0.1-1.0% O(2)), or full anoxia. The production of both gases was increased with reduced expression of either of the Hb genes GLB1 or GLB2, whereas NO emission decreased in plants overexpressing these genes. NO emission in plants with reduced Hb gene expression represented a major loss of nitrogen equivalent to 0.2mM nitrate per 24h under hypoxic conditions. Hb gene expression was greatly enhanced in flooded roots, suggesting induction by reduced oxygen diffusion. The function could be to limit loss of nitrogen under NO emission. NO reacts with thiols to form S-nitrosylated compounds, and it is demonstrated that hypoxia substantially increased the content of S-nitrosylated compounds. A parallel up-regulation of Hb gene expression in the normoxic shoots of the flooded plants may reflect signal transmission from root to shoot via ethylene and a role for Hb in the shoots. Hb gene expression was correlated with ethylene-induced upward leaf movement (hyponastic growth) but not with hypocotyl growth, which was Hb independent. Taken together the data suggest that Hb can influence flood-induced hyponasty via ethylene-dependent and, possibly, ethylene-independent pathways.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.