Exogenous calcium-induced physiological and biochemical changes in tree peony (Paeonia section Moutan DC.) under drought stress
Tree peony (Paeonia section Moutan DC.) is an excellent ornamental plant, of which Paeonia ostii (P. ostii) has a high oil value. It is widely cultivated in China, but severe drought affects its growth. In this study, the effects of exogenous calcium on drought-induced damage of P. ostii were studie...
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| Format: | Article |
| Language: | English |
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Academy of Sciences of the Czech Republic, Institute of Experimental Botany
2019-11-01
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| Series: | Photosynthetica |
| Subjects: | |
| Online Access: | https://ps.ueb.cas.cz/artkey/phs-201904-0030_exogenous-calcium-induced-physiological-and-biochemical-changes-in-tree-peony-paeonia-section-moutan-dc-unde.php |
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| author | X.Y. ZHANG Z.W. FANG H.N. LIU D.Q. ZHAO J. TAO |
| author_facet | X.Y. ZHANG Z.W. FANG H.N. LIU D.Q. ZHAO J. TAO |
| author_sort | X.Y. ZHANG |
| collection | DOAJ |
| description | Tree peony (Paeonia section Moutan DC.) is an excellent ornamental plant, of which Paeonia ostii (P. ostii) has a high oil value. It is widely cultivated in China, but severe drought affects its growth. In this study, the effects of exogenous calcium on drought-induced damage of P. ostii were studied. The results showed that under drought stress, leaf water content showed a downward trend, while reactive oxygen species (ROS), relative electrical conductivity (REC), proline (Pro) content, and related antioxidant enzymes increased significantly. Spraying CaCl2 could effectively slow leaf wilting and water loss, induced an increase in enzyme activity of the antioxidant enzyme system, and reduced the accumulation of ROS caused by drought stress. Simultaneously, REC and Pro content could be alleviated, and the degree of cell membrane damage could be reduced. In addition, CaCl2 improved photosynthetic characteristics and chlorophyll fluorescence parameters. These results indicated that CaCl2 reduced the harmful effects of drought stress on the growth of P. ostii by regulating infiltration, activating photosynthesis, and enhancing the antioxidant system. These findings suggested that CaCl2 can be used to manage drought stress in P. ostii cultivation. |
| first_indexed | 2024-12-13T12:35:16Z |
| format | Article |
| id | doaj.art-d9126a2453064878a8ef3466efef1e18 |
| institution | Directory Open Access Journal |
| issn | 0300-3604 1573-9058 |
| language | English |
| last_indexed | 2024-12-13T12:35:16Z |
| publishDate | 2019-11-01 |
| publisher | Academy of Sciences of the Czech Republic, Institute of Experimental Botany |
| record_format | Article |
| series | Photosynthetica |
| spelling | doaj.art-d9126a2453064878a8ef3466efef1e182022-12-21T23:45:53ZengAcademy of Sciences of the Czech Republic, Institute of Experimental BotanyPhotosynthetica0300-36041573-90582019-11-0157490491110.32615/ps.2019.108phs-201904-0030Exogenous calcium-induced physiological and biochemical changes in tree peony (Paeonia section Moutan DC.) under drought stressX.Y. ZHANG0Z.W. FANG1H.N. LIU2D.Q. ZHAO3J. TAO4Jiangsu Key Laboratory of Crop Genetics and Physiology, College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, ChinaJiangsu Key Laboratory of Crop Genetics and Physiology, College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, ChinaJiangsu Key Laboratory of Crop Genetics and Physiology, College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, ChinaJiangsu Key Laboratory of Crop Genetics and Physiology, College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, ChinaJiangsu Key Laboratory of Crop Genetics and Physiology, College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, ChinaTree peony (Paeonia section Moutan DC.) is an excellent ornamental plant, of which Paeonia ostii (P. ostii) has a high oil value. It is widely cultivated in China, but severe drought affects its growth. In this study, the effects of exogenous calcium on drought-induced damage of P. ostii were studied. The results showed that under drought stress, leaf water content showed a downward trend, while reactive oxygen species (ROS), relative electrical conductivity (REC), proline (Pro) content, and related antioxidant enzymes increased significantly. Spraying CaCl2 could effectively slow leaf wilting and water loss, induced an increase in enzyme activity of the antioxidant enzyme system, and reduced the accumulation of ROS caused by drought stress. Simultaneously, REC and Pro content could be alleviated, and the degree of cell membrane damage could be reduced. In addition, CaCl2 improved photosynthetic characteristics and chlorophyll fluorescence parameters. These results indicated that CaCl2 reduced the harmful effects of drought stress on the growth of P. ostii by regulating infiltration, activating photosynthesis, and enhancing the antioxidant system. These findings suggested that CaCl2 can be used to manage drought stress in P. ostii cultivation.https://ps.ueb.cas.cz/artkey/phs-201904-0030_exogenous-calcium-induced-physiological-and-biochemical-changes-in-tree-peony-paeonia-section-moutan-dc-unde.phpascorbate peroxidase; gas exchange; physiological index; relative water content; superoxide dismutase; water stress. |
| spellingShingle | X.Y. ZHANG Z.W. FANG H.N. LIU D.Q. ZHAO J. TAO Exogenous calcium-induced physiological and biochemical changes in tree peony (Paeonia section Moutan DC.) under drought stress Photosynthetica ascorbate peroxidase; gas exchange; physiological index; relative water content; superoxide dismutase; water stress. |
| title | Exogenous calcium-induced physiological and biochemical changes in tree peony (Paeonia section Moutan DC.) under drought stress |
| title_full | Exogenous calcium-induced physiological and biochemical changes in tree peony (Paeonia section Moutan DC.) under drought stress |
| title_fullStr | Exogenous calcium-induced physiological and biochemical changes in tree peony (Paeonia section Moutan DC.) under drought stress |
| title_full_unstemmed | Exogenous calcium-induced physiological and biochemical changes in tree peony (Paeonia section Moutan DC.) under drought stress |
| title_short | Exogenous calcium-induced physiological and biochemical changes in tree peony (Paeonia section Moutan DC.) under drought stress |
| title_sort | exogenous calcium induced physiological and biochemical changes in tree peony paeonia section moutan dc under drought stress |
| topic | ascorbate peroxidase; gas exchange; physiological index; relative water content; superoxide dismutase; water stress. |
| url | https://ps.ueb.cas.cz/artkey/phs-201904-0030_exogenous-calcium-induced-physiological-and-biochemical-changes-in-tree-peony-paeonia-section-moutan-dc-unde.php |
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