ArticleFrontiers in plant science2015
Heme Oxygenase-1 Delays Gibberellin-Induced Programmed Cell Death of Rice Aleurone Layers Subjected to Drought Stress by Interacting with Nitric Oxide.
Article in Frontiers in plant science, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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15 citing papers in PubMed, 41 citations in OpenAlex.
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- Endosperm cell death: roles and regulation in angiosperms.Journal of experimental botany · 2024Review
- Salt and drought stress-mitigating approaches in sugar beet (Beta vulgaris L.) to improve its performance and yield.Planta · 2023Review
- Effects of constructing farmland with large amounts of iron tailings as soil reconstruction materials on soil properties and crop growth.Scientific reports · 2022Article
- Overexpression ofFrontiers in plant science · 2022Article
- Interaction between endogenous HPlant cell reports · 2021Article
- Plant Nitric Oxide Signaling under Drought Stress.Plants (Basel, Switzerland) · 2021Review
- OsVPE3 Mediates GA-induced Programmed Cell Death in Rice Aleurone Layers via Interacting with Actin Microfilaments.Rice (New York, N.Y.) · 2020Article
- Research Progress on the Functions of Gasotransmitters in Plant Responses to Abiotic Stresses.Plants (Basel, Switzerland) · 2019Review
- The Role of the Plant Antioxidant System in Drought Tolerance.Antioxidants (Basel, Switzerland) · 2019Review
- Exogenous Hydrogen Peroxide Contributes to Heme Oxygenase-1 Delaying Programmed Cell Death in Isolated Aleurone Layers of Rice Subjected to Drought Stress in a cGMP-Dependent Manner.Frontiers in plant science · 2018Article
- Effects of drought stress on global gene expression profile in leaf and root samples of Dongxiang wild rice (Bioscience reports · 2017Article
- The relationship between vacuolation and initiation of PCD in rice (Oryza sativa) aleurone cells.Scientific reports · 2017Article
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5 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Cereal aleurone layers undergo a gibberellin (GA)-regulated process of programmed cell death (PCD) following germination. Heme oxygenase-1 (HO-1) is known as a rate-liming enzyme in the degradation of heme to biliverdin IXα, carbon monoxide (CO), and free iron ions (Fe(2+)). It is a critical component in plant development and adaptation to environment stresses. Our previous studies confirmed that HO-1 inducer hematin (Ht) promotes the germination of rice seeds in drought (20% polyethylene glycol-6000, PEG) conditions, but the corresponding effects of HO-1 on the alleviation of germination-triggered PCD in GA-treated rice aleurone layers remain unknown. The present study has determined that GA co-treated with PEG results in lower HO-1 transcript levels and HO activity, which in turn results in the development of vacuoles in aleurone cells, followed by PCD. The pharmacology approach illustrated that up- or down-regulated HO-1 gene expression and HO activity delayed or accelerated GA-induced PCD. Furthermore, the application of the HO-1 inducer Ht and nitric oxide (NO) donor sodium nitroprusside (SNP) not only activated HO-1 gene expression, HO activity, and endogenous NO content, but also blocked GA-induced rapid vacuolation and accelerated aleurone layers PCD under drought stress. However, both HO-1 inhibitor zinc protoporphyrin IX (ZnPPIX) and NO scavenger 2-(4-carboxyphenyl0-4, 4,5,5-tetramethylimidazoline-l-oxyl-3-oxide potassium salt (cPTIO) reserved the effects of Ht and SNP on rice aleurone layer PCD under drought stress by down-regulating endogenous HO-1 and NO, respectively. The inducible effects of Ht and SNP on HO-1 gene expression, HO activity, and NO content were blocked by cPTIO. Together, these results clearly suggest that HO-1 is involved in the alleviation of GA-induced PCD of drought-triggered rice aleurone layers by associating with NO.
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