Terahertz Spectroscopy in Assessing Temperature-Shock Effects on Citrus
Rapid assessment of physiological status is a precondition for addressing biological stress in trees so that they may recover. Environmental stress can cause water deficit in plants, while terahertz (THz) spectroscopy is sensitive to changes in aqueous solutions within organisms. This has given the...
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MDPI AG
2024-11-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/24/22/7315 |
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| author | Junbo Wang Ziyi Zang Xiaomei Li Dongyun Tang Qi Xiao Mingkun Zhang Shihan Yan |
| author_facet | Junbo Wang Ziyi Zang Xiaomei Li Dongyun Tang Qi Xiao Mingkun Zhang Shihan Yan |
| author_sort | Junbo Wang |
| collection | DOAJ |
| description | Rapid assessment of physiological status is a precondition for addressing biological stress in trees so that they may recover. Environmental stress can cause water deficit in plants, while terahertz (THz) spectroscopy is sensitive to changes in aqueous solutions within organisms. This has given the THz sensor a competitive edge for evaluating plant phenotypes, especially under similar environmental stress, if there are existing differences in the corresponding THz information. In this study, we utilized THz technology in association with traditional weighing methods to explore physiological changes in citrus leaves under different temperature, duration, and stress treatment conditions. It was found that the higher the temperature and the longer the exposure duration, the more severe the reduction in the relative absorption coefficient. There was a positive correlation between the trends and the increase in the ion permeability of cells. In addition, based on the effective medium theory, THz spectral information can be transformed into information on free water and bound water in the leaves. Under different treatment conditions, water content shows different trends and degrees of change on the time scale, and accuracy was verified by traditional weighing methods. These findings revealed that characteristics of THz information can serve as a simple and clear indicator for judging a plant’s physiological status. |
| format | Article |
| id | doaj-art-b0356bd83af74f4685185daf4af10fa3 |
| institution | OA Journals |
| issn | 1424-8220 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
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| series | Sensors |
| spelling | doaj-art-b0356bd83af74f4685185daf4af10fa32025-08-20T02:04:44ZengMDPI AGSensors1424-82202024-11-012422731510.3390/s24227315Terahertz Spectroscopy in Assessing Temperature-Shock Effects on CitrusJunbo Wang0Ziyi Zang1Xiaomei Li2Dongyun Tang3Qi Xiao4Mingkun Zhang5Shihan Yan6Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, ChinaAerospace Times FeiHong Technology Company Limited, Beijing 100094, ChinaChongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, ChinaChongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, ChinaWanzhou Institute for Food and Drug Control, Chongqing Key Laboratory of Development and Utilization of Genuine Medicinal Materials in Three Gorges Reservoir Area, Chongqing 404000, ChinaChongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, ChinaChongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, ChinaRapid assessment of physiological status is a precondition for addressing biological stress in trees so that they may recover. Environmental stress can cause water deficit in plants, while terahertz (THz) spectroscopy is sensitive to changes in aqueous solutions within organisms. This has given the THz sensor a competitive edge for evaluating plant phenotypes, especially under similar environmental stress, if there are existing differences in the corresponding THz information. In this study, we utilized THz technology in association with traditional weighing methods to explore physiological changes in citrus leaves under different temperature, duration, and stress treatment conditions. It was found that the higher the temperature and the longer the exposure duration, the more severe the reduction in the relative absorption coefficient. There was a positive correlation between the trends and the increase in the ion permeability of cells. In addition, based on the effective medium theory, THz spectral information can be transformed into information on free water and bound water in the leaves. Under different treatment conditions, water content shows different trends and degrees of change on the time scale, and accuracy was verified by traditional weighing methods. These findings revealed that characteristics of THz information can serve as a simple and clear indicator for judging a plant’s physiological status.https://www.mdpi.com/1424-8220/24/22/7315THz spectroscopysensorplanthigh temperaturewater deficit |
| spellingShingle | Junbo Wang Ziyi Zang Xiaomei Li Dongyun Tang Qi Xiao Mingkun Zhang Shihan Yan Terahertz Spectroscopy in Assessing Temperature-Shock Effects on Citrus Sensors THz spectroscopy sensor plant high temperature water deficit |
| title | Terahertz Spectroscopy in Assessing Temperature-Shock Effects on Citrus |
| title_full | Terahertz Spectroscopy in Assessing Temperature-Shock Effects on Citrus |
| title_fullStr | Terahertz Spectroscopy in Assessing Temperature-Shock Effects on Citrus |
| title_full_unstemmed | Terahertz Spectroscopy in Assessing Temperature-Shock Effects on Citrus |
| title_short | Terahertz Spectroscopy in Assessing Temperature-Shock Effects on Citrus |
| title_sort | terahertz spectroscopy in assessing temperature shock effects on citrus |
| topic | THz spectroscopy sensor plant high temperature water deficit |
| url | https://www.mdpi.com/1424-8220/24/22/7315 |
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