Dual Role of Acid Rain and <i>Pyricularia oryzae</i> on Growth, Photosynthesis and Chloroplast Ultrastructure in Rice Seedlings
Rice is widely planted and serves as staple food in the world, but it is often exposed to acid rain and rice blast (<i>Pyricularia oryzae</i>). In this work, we analyzed the effects of co-exposure to simulated acid rain (SAR) and <i>P. oryzae</i> on the photosynthetic growth...
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MDPI AG
2022-02-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/12/3/567 |
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| author | Hongru Li Qiuyuan Xu Chao Li Jiaen Zhang Qi Wang Huimin Xiang Yiliang Liu Hui Wei Zhong Qin |
| author_facet | Hongru Li Qiuyuan Xu Chao Li Jiaen Zhang Qi Wang Huimin Xiang Yiliang Liu Hui Wei Zhong Qin |
| author_sort | Hongru Li |
| collection | DOAJ |
| description | Rice is widely planted and serves as staple food in the world, but it is often exposed to acid rain and rice blast (<i>Pyricularia oryzae</i>). In this work, we analyzed the effects of co-exposure to simulated acid rain (SAR) and <i>P. oryzae</i> on the photosynthetic growth of rice seedlings. We found that the growth, photosynthesis, and chloroplast ultrastructure of rice seedlings were damaged under single treatments of <i>P. oryzae</i> and strong acid rain (pH 2.0) but increased under medium acidity acid rain (pH 4.0). Similarly, when plants were exposed to both <i>P. oryzae</i> and acid rain, pH 4.0 mitigated the changes of growth, photosynthetic characteristics, and chloroplast ultrastructure induced by <i>P. oryzae</i>, but pH 2.0 aggravated these changes. In addition, we found that significant differences in chlorophyll content (chlorophyll a and chlorophyll b) correlated with transpiration rate (Tr) under the combined stress of acid rain and <i>P. oryzae</i> at pH 4.0 and pH 2.0. Medium-acidity acid rain alleviated the harm caused by <i>P. oryzae</i> on rice growth by enhancing synergistic regulatory mechanisms of photosynthetic traits to increase plant resistance tolerance. The effect of <i>P. oryzae</i> on photosynthetic traits of rice was regulated by acidity of acid rain. |
| first_indexed | 2024-03-09T20:13:25Z |
| format | Article |
| id | doaj.art-3d073b7a87a549fba8724ec079e53634 |
| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-09T20:13:25Z |
| publishDate | 2022-02-01 |
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| record_format | Article |
| series | Agronomy |
| spelling | doaj.art-3d073b7a87a549fba8724ec079e536342023-11-24T00:07:03ZengMDPI AGAgronomy2073-43952022-02-0112356710.3390/agronomy12030567Dual Role of Acid Rain and <i>Pyricularia oryzae</i> on Growth, Photosynthesis and Chloroplast Ultrastructure in Rice SeedlingsHongru Li0Qiuyuan Xu1Chao Li2Jiaen Zhang3Qi Wang4Huimin Xiang5Yiliang Liu6Hui Wei7Zhong Qin8Guangdong Provincial Key Laboratory of Eco-Circular Agriculture, South China Agricultural University, Guangzhou 510642, ChinaCollege of Architecture and Urban Planning, Fujian University of Technology, Fuzhou 350118, ChinaGuangdong Provincial Key Laboratory of Eco-Circular Agriculture, South China Agricultural University, Guangzhou 510642, ChinaGuangdong Provincial Key Laboratory of Eco-Circular Agriculture, South China Agricultural University, Guangzhou 510642, ChinaGuangdong Provincial Key Laboratory of Eco-Circular Agriculture, South China Agricultural University, Guangzhou 510642, ChinaGuangdong Provincial Key Laboratory of Eco-Circular Agriculture, South China Agricultural University, Guangzhou 510642, ChinaGuangdong Provincial Key Laboratory of Eco-Circular Agriculture, South China Agricultural University, Guangzhou 510642, ChinaGuangdong Provincial Key Laboratory of Eco-Circular Agriculture, South China Agricultural University, Guangzhou 510642, ChinaGuangdong Provincial Key Laboratory of Eco-Circular Agriculture, South China Agricultural University, Guangzhou 510642, ChinaRice is widely planted and serves as staple food in the world, but it is often exposed to acid rain and rice blast (<i>Pyricularia oryzae</i>). In this work, we analyzed the effects of co-exposure to simulated acid rain (SAR) and <i>P. oryzae</i> on the photosynthetic growth of rice seedlings. We found that the growth, photosynthesis, and chloroplast ultrastructure of rice seedlings were damaged under single treatments of <i>P. oryzae</i> and strong acid rain (pH 2.0) but increased under medium acidity acid rain (pH 4.0). Similarly, when plants were exposed to both <i>P. oryzae</i> and acid rain, pH 4.0 mitigated the changes of growth, photosynthetic characteristics, and chloroplast ultrastructure induced by <i>P. oryzae</i>, but pH 2.0 aggravated these changes. In addition, we found that significant differences in chlorophyll content (chlorophyll a and chlorophyll b) correlated with transpiration rate (Tr) under the combined stress of acid rain and <i>P. oryzae</i> at pH 4.0 and pH 2.0. Medium-acidity acid rain alleviated the harm caused by <i>P. oryzae</i> on rice growth by enhancing synergistic regulatory mechanisms of photosynthetic traits to increase plant resistance tolerance. The effect of <i>P. oryzae</i> on photosynthetic traits of rice was regulated by acidity of acid rain.https://www.mdpi.com/2073-4395/12/3/567acid rain<i>Pyricularia oryzae</i>photosynthesischlorophyll fluorescencechloroplast ultrastructure |
| spellingShingle | Hongru Li Qiuyuan Xu Chao Li Jiaen Zhang Qi Wang Huimin Xiang Yiliang Liu Hui Wei Zhong Qin Dual Role of Acid Rain and <i>Pyricularia oryzae</i> on Growth, Photosynthesis and Chloroplast Ultrastructure in Rice Seedlings Agronomy acid rain <i>Pyricularia oryzae</i> photosynthesis chlorophyll fluorescence chloroplast ultrastructure |
| title | Dual Role of Acid Rain and <i>Pyricularia oryzae</i> on Growth, Photosynthesis and Chloroplast Ultrastructure in Rice Seedlings |
| title_full | Dual Role of Acid Rain and <i>Pyricularia oryzae</i> on Growth, Photosynthesis and Chloroplast Ultrastructure in Rice Seedlings |
| title_fullStr | Dual Role of Acid Rain and <i>Pyricularia oryzae</i> on Growth, Photosynthesis and Chloroplast Ultrastructure in Rice Seedlings |
| title_full_unstemmed | Dual Role of Acid Rain and <i>Pyricularia oryzae</i> on Growth, Photosynthesis and Chloroplast Ultrastructure in Rice Seedlings |
| title_short | Dual Role of Acid Rain and <i>Pyricularia oryzae</i> on Growth, Photosynthesis and Chloroplast Ultrastructure in Rice Seedlings |
| title_sort | dual role of acid rain and i pyricularia oryzae i on growth photosynthesis and chloroplast ultrastructure in rice seedlings |
| topic | acid rain <i>Pyricularia oryzae</i> photosynthesis chlorophyll fluorescence chloroplast ultrastructure |
| url | https://www.mdpi.com/2073-4395/12/3/567 |
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