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不同玫瑰（蔷薇属）品种对臭氧浓度升高的生理和分子响应

Physiological and molecular responses of different rose ( L.) cultivars to elevated ozone levels.

作者信息

Wang Hua, Li Maofu, Yang Yuan, Sun Pei, Zhou Shuting, Kang Yanhui, Xu Yansen, Yuan Xiangyang, Feng Zhaozhong, Jin Wanmei

机构信息

Institute of Forestry and Pomology Beijing Academy of Agriculture and Forestry Sciences Beijing China.

Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China) Ministry of Agriculture and Rural Affairs Beijing China.

出版信息

Plant Direct. 2023 Jul 20;7(7):e513. doi: 10.1002/pld3.513. eCollection 2023 Jul.

DOI:10.1002/pld3.513
PMID:37484545
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10359767/
Abstract

The increasing ground-level ozone (O) pollution resulting from rapid global urbanization and industrialization has negative effects on many plants. Nonetheless, many gaps remain in our knowledge of how ornamental plants respond to O. Rose ( L.) is a commercially important ornamental plant worldwide. In this study, we exposed four rose cultivars ("Schloss Mannheim," "Iceberg," "Lüye," and "Spectra") to either unfiltered ambient air (NF), unfiltered ambient air plus 40 ppb O (NF40), or unfiltered ambient air plus 80 ppb O (NF80). Only the cultivar "Schloss Mannheim" showed significant O-related effects, including foliar injury, reduced chlorophyll content, reduced net photosynthetic rate, reduced stomatal conductance, and reduced stomatal apertures. In "Schloss Mannheim," several transcription factor genes-, , and genes-were upregulated by O exposure, and their expression was correlated with that of , , /, and , which are related to ABA biosynthesis and signaling. These results suggest that HSF, WRKY, and MYB transcription factors and ABA are important components of the plant response to O stress, suggesting a possible strategy for cultivating O-tolerant rose varieties.

摘要

全球快速城市化和工业化导致地面臭氧（O）污染日益严重，对许多植物产生负面影响。尽管如此，我们对观赏植物如何应对臭氧的了解仍存在许多空白。玫瑰（蔷薇属）是全球一种具有重要商业价值的观赏植物。在本研究中，我们将四个玫瑰品种（“施洛斯曼海姆”、“冰山”、“绿萼”和“光谱”）暴露于未过滤的环境空气（NF）、未过滤的环境空气加40 ppb臭氧（NF40）或未过滤的环境空气加80 ppb臭氧（NF80）中。只有“施洛斯曼海姆”品种表现出与臭氧相关的显著影响，包括叶片损伤、叶绿素含量降低、净光合速率降低、气孔导度降低和气孔孔径减小。在“施洛斯曼海姆”中，几个转录因子基因——HSF、WRKY和MYB基因——在臭氧暴露下上调，它们的表达与参与脱落酸（ABA）生物合成和信号传导的NCED、AAO3、PP2C和SnRK2基因的表达相关。这些结果表明，热激转录因子（HSF）、WRKY和MYB转录因子以及脱落酸（ABA）是植物对臭氧胁迫响应的重要组成部分，这为培育耐臭氧玫瑰品种提供了一种可能的策略。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fd5b/10359767/b59483a72724/PLD3-7-e513-g004.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fd5b/10359767/b59483a72724/PLD3-7-e513-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fd5b/10359767/259837684f94/PLD3-7-e513-g001.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fd5b/10359767/075209402b5a/PLD3-7-e513-g007.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fd5b/10359767/b59483a72724/PLD3-7-e513-g004.jpg

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