ArticleJournal of Zhejiang University. Science. B2013
Influence of heat stress on leaf ultrastructure, photosynthetic performance, and ascorbate peroxidase gene expression of two pear cultivars (Pyrus pyrifolia).
Article in Journal of Zhejiang University. Science. B, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 17 citations in OpenAlex.
- Advances in Physiological and Molecular Mechanisms of Heat Stress in Apple and Pear.Plants (Basel, Switzerland) · 2026Review
- Dynamic Regulation of Grapevine's microRNAs in Response to Mycorrhizal Symbiosis and High Temperature.Plants (Basel, Switzerland) · 2023Article
- The Δ1-pyrroline-5-carboxylate synthetase family performs diverse physiological functions in stress responses in pear (Frontiers in plant science · 2022Article
- Response of Mycorrhizal 'Touriga Nacional' Variety Grapevines to High Temperatures Measured by Calorespirometry and Near-Infrared Spectroscopy.Plants (Basel, Switzerland) · 2020Article
- Ascorbic Acid-The Little-Known Antioxidant in Woody Plants.Antioxidants (Basel, Switzerland) · 2019Review
- Selection and validation of suitable reference genes for qRT-PCR analysis in pear leaf tissues under distinct training systems.PloS one · 2018Article
- Response of linear and cyclic electron flux to moderate high temperature and high light stress in tomato.Journal of Zhejiang University. Science. B · 2017Article
- Evaluation of yeasts from Tibetan fermented products as agents for biocontrol of blue mold of Nashi pear fruits.Journal of Zhejiang University. Science. B · 2015Article
- Nitric oxide induced by polyamines involves antioxidant systems against chilling stress in tomato (Lycopersicon esculentum Mill.) seedling.Journal of Zhejiang University. Science. BArticle
Corrections and comments
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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
Plants encounter a variety of stresses in natural environments. One-year-old pot-grown trees of pear (Pyrus pyrifolia Nakai cv. Cuiguan and Wonhwang) were exposed to two heat stress regimes. Under constant short-term heat stress, chloroplasts and mitochondria were visibly damaged. Relative chlorophyll content and maximum photochemical efficiency of photosystem II were significantly decreased, which indicated that the leaf photosynthetic capability declined. Under chronic heat stress, mesophyll cell ultrastructure was not obviously damaged, but leaf photosynthetic capability was still restrained. As chronic heat stress was a simulation of the natural environment in summer, further study of the responses under this stress regime was undertaken. Ascorbate peroxidase (APX) activity was increased in 'Cuiguan', but not in 'Wonhwang'. Inducible expression of PpAPX genes in the cytoplasm, chloroplasts and peroxisomes was consistent with increased APX activity in 'Cuiguan', whereas only weak induction of PpAPX genes was observed in 'Wonhwang'. The isoenzymes cytosolic APX1 (cAPX1) and stromal APX (sAPX) were confirmed to be localized in the cytoplasm and chloroplasts, respectively.
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