ArticlePlant physiology2006
Arabidopsis Hsa32, a novel heat shock protein, is essential for acquired thermotolerance during long recovery after acclimation.
Article in Plant physiology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 132 papers.
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132 citing papers in PubMed, 294 citations in OpenAlex.
- Molecular Insights into the Role ofPlants (Basel, Switzerland) · 2026Article
- Membrane stability under heat stress: molecular signaling, lipid remodeling, and defense mechanisms in plants.Plant cell reports · 2026Review
- Changes in both gene expression and intron retention tune themicroPublication biology · 2026Article
- Transcriptomic analysis of reduced thermotolerance inFrontiers in plant science · 2026Article
- Promoter and domain swap analysis delineates heat stress memory-specific determinants of heat shock factor HSFA2.Plant physiology · 2025Article
- A thermosensor FUST1 primes heat-induced stress granule formation via biomolecular condensation in Arabidopsis.Cell research · 2025Article
- BPM Proteins Modulate Heat Stress Response inPlants (Basel, Switzerland) · 2025Article
- Genome-Wide Identification and Evolution-Profiling Analysis ofInternational journal of molecular sciences · 2025Article
- Identification of the HSP20 Gene Family inGenes · 2025Article
- Stress resilience in plants: the complex interplay between heat stress memory and resetting.The New phytologist · 2025Review
- Review
- Simulation of the impacts of high temperature stress on pepper (Frontiers in plant science · 2025Article
- Functional characterization of protein SUMOylation in the miRNA transcription regulation during heat stress in Arabidopsis.The plant genome · 2024Article
- ZmHsp18 screened from the ZmHsp20 gene family confers thermotolerance in maize.BMC plant biology · 2024Article
- Pan-Genome-Wide Investigation and Co-Expression Network Analysis ofInternational journal of molecular sciences · 2024Article
- Establishment and Maintenance of Heat-Stress Memory in Plants.International journal of molecular sciences · 2024Review
- Autophagy: a key player in the recovery of plants from heat stress.Journal of experimental botany · 2024Review
- Control of meiotic crossover interference by a proteolytic chaperone network.Nature plants · 2024Article
- Transcriptomic and physiological analyses reveal different grape varieties response to high temperature stress.Frontiers in plant science · 2024Article
- Histone retention preserves epigenetic marks during heat stress-induced transcriptional memory in plants.The EMBO journal · 2023Article
72 more citing papers are in PubMed but not listed here.
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5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Plants and animals share similar mechanisms in the heat shock (HS) response, such as synthesis of the conserved HS proteins (Hsps). However, because plants are confined to a growing environment, in general they require unique features to cope with heat stress. Here, we report on the analysis of the function of a novel Hsp, heat-stress-associated 32-kD protein (Hsa32), which is highly conserved in land plants but absent in most other organisms. The gene responds to HS at the transcriptional level in moss (Physcomitrella patens), Arabidopsis (Arabidopsis thaliana), and rice (Oryza sativa). Like other Hsps, Hsa32 protein accumulates greatly in Arabidopsis seedlings after HS treatment. Disruption of Hsa32 by T-DNA insertion does not affect growth and development under normal conditions. However, the acquired thermotolerance in the knockout line was compromised following a long recovery period (>24 h) after acclimation HS treatment, when a severe HS challenge killed the mutant but not the wild-type plants, but no significant difference was observed if they were challenged within a short recovery period. Quantitative hypocotyl elongation assay also revealed that thermotolerance decayed faster in the absence of Hsa32 after a long recovery. Similar results were obtained in Arabidopsis transgenic plants with Hsa32 expression suppressed by RNA interference. Microarray analysis of the knockout mutant indicates that only the expression of Hsa32 was significantly altered in HS response. Taken together, our results suggest that Hsa32 is required not for induction but rather maintenance of acquired thermotolerance, a feature that could be important to plants.
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