ArticlePlant physiology2023
Rice HEAT SHOCK PROTEIN60-3B maintains male fertility under high temperature by starch granule biogenesis.
Article in Plant physiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed, 32 citations in OpenAlex.
- The OsWRKY15-OsSUT3 Regulatory Module Enhances Rice Pollen Fertility by Mediating Sucrose Allocation to Anthers.Plant biotechnology journal · 2026Article
- Harnessing CRISPR-Cas technology to enhance rice resilience under abiotic and biotic stress.Journal of applied genetics · 2026Review
- OsCPN10a, cooperating with OsCPN20 and OsHSP60-3B negatively regulate ABA signaling and enhance seed storability in rice.Journal of integrative plant biology · 2026Article
- Heat stress impact on rice reproductive processes: challenges and new approaches.Frontiers in genome editing · 2026Review
- Disease-Resistance Functional Analysis and Screening of Interacting Proteins of ZmCpn60-3, a Chaperonin 60 Protein from Maize.Plants (Basel, Switzerland) · 2025Article
- Identification and Expression Analysis of Rice MYB Family Members in Response to Heat Stress.Plants (Basel, Switzerland) · 2025Article
- Anther Transcriptome Analysis of Two Heat Tolerance-Differentiated Indica Rice Restorer Lines Reveals the Importance of Non-Structural Carbohydrates and ATP in the Regulation of Heat Tolerance.International journal of molecular sciences · 2025Article
- Review
- A molecular module improves rice grain quality and yield at high temperatures.National science review · 2025Article
- Advances in plant male sterility for hybrid seed production: an overview of conditional nuclear male sterile lines and biotechnology-based male sterile systems.Frontiers in plant science · 2025Review
- Decrypting molecular mechanism of heat stress tolerance in rice to tackle climate change challenges through recent approaches.Frontiers in plant science · 2025Review
- Comparative analysis of mitochondrial and chloroplast genomes ofFrontiers in plant science · 2025Article
- How Rice Responds to Temperature Changes and Defeats Heat Stress.Rice (New York, N.Y.) · 2024Review
- Genome-Wide Analysis of Heat Shock Protein Family and Identification of Their Functions in Rice Quality and Yield.International journal of molecular sciences · 2024Article
- Article
- Transcriptome sequencing of garlic reveals key genes related to the heat stress response.Scientific reports · 2024Article
- Calcium Signaling and the Response to Heat Shock in Crop Plants.International journal of molecular sciences · 2023Review
- A starch- and ROS-regulating heat shock protein helps maintain male fertility in heat-stressed rice plants.Plant physiology · 2023Article
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Authors and funding
11 authors at 3 institutions in 3 countries.
Funding
Abstract
Heat stress has a deleterious effect on male fertility in rice (Oryza sativa), but mechanisms to protect against heat stress in rice male gametophytes are poorly understood. Here, we have isolated and characterized a heat-sensitive male-sterile rice mutant, heat shock protein60-3b (oshsp60-3b), that shows normal fertility at optimal temperatures but decreasing fertility as temperatures increase. High temperatures interfered with pollen starch granule formation and reactive oxygen species (ROS) scavenging in oshsp60-3b anthers, leading to cell death and pollen abortion. In line with the mutant phenotypes, OsHSP60-3B was rapidly upregulated in response to heat shock and its protein products were localized to the plastid. Critically, overexpression of OsHSP60-3B enhanced the heat tolerance of pollen in transgenic plants. We demonstrated that OsHSP60-3B interacted with FLOURY ENDOSPERM6(FLO6) in plastids, a key component involved in the starch granule formation in the rice pollen. Western blot results showed that FLO6 level was substantially decreased in oshsp60-3b anthers at high temperature, indicating that OsHSP60-3B is required to stabilize FLO6 when temperatures exceed optimal conditions. We suggest that in response to high temperature, OsHSP60-3B interacts with FLO6 to regulate starch granule biogenesis in rice pollen and attenuates ROS levels in anthers to ensure normal male gametophyte development in rice.
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