2018_Functions OF Betaine to Reduce The Detrimental Effects of Water And Salt Stresses on Morphology And Physiology of Arabidopsis thaliana
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| date | 2018-12-29 |
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| person | Noor Naimah Syafiqah Binti Nokman |
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| spelling | 15611 https://intelek.unisza.edu.my/intelek/pages/view.php?ref=15611 https://intelek.unisza.edu.my/intelek/pages/search.php?search=!collection3 General Document Malaysia Library Staff (Top Management) Library Staff (Management) Library Staff (Support) Terengganu Faculty of Bio-resources & Food Industry English application/pdf 1.5 Server storage Scanned document Universiti Sultan Zainal Abidin UniSZA Private Access UNIVERSITI SULTAN ZAINAL ABIDIN SAMBox 2.3.4; modified using iTextSharp™ 5.5.10 ©2000-2016 iText Group NV (AGPL-version) 229 Copyright©PWB2025 2018-12-29 15611_166d3e37d794384.pdf Noor Naimah Syafiqah Binti Nokman 2018_Functions OF Betaine to Reduce The Detrimental Effects of Water And Salt Stresses on Morphology And Physiology of Arabidopsis thaliana Water and salinity stresses commonly known as an abiotic stresses that affects plant productions by reducing morphology and physiology characteristics of the plant. Betaine is compatible solutes which can be applied exogenously to the plants and provide resist mechanism under stress condition. The objective of this study are to determine the effects of exogenous application of betaine on morphology and physiology changes of Arabidopsis thaliana under different water levels and different salinity concentrations. In the first experiment, four different water levels [W1 (1cm flooding); W2 (saturated); W3 (alternative 1cm flooding) and W4 (alternative saturated)] were applied to the plants. While in the second experiment, five different salinity concentrations, [S0 (0 dS/m); S1 (2 dS/m); S2 (4 dS/m); S3 (6 dS/m) and S4 (8 dS/m)] were applied to the plants. Betaine was applied with (50mM) or without (0mM) on both experiments. Some of morphology and physiology parameters were observed and determined as per guidelines for both experiment. The treatments in both experiment were laid out as a completely randomized design (CRD) with three-time replications. The first experiment showed the different water level treatments affected morphological and physiological of Arabidopsis plant. Betaine was significantly increasing the leaf area, root length, FW and DW of shoot and root, increased in chlorophyll content in the leaf, stomatal conductance, stomatal aperture and seed weight of Arabidopsis compared to betaine-untreated plant. However, betaine was found not significantly increased the leaf number, plant height, root-shoot ratio, chlorophyll fluorescence and others related parameters, percentage of RWC, leaf temperature, total weight loss and seed number. Meanwhile, in the second experiment, plant morphology and physiology of plant was affected by different salinity concentrations. Betaine under salinity stress showed significantly effects especially under treatment S3 (6 dS/m NaCl) and S4 (8 dS/m NaCl) compared to others treatment. However, only leaf area, FW and DW of plant, chlorophyll content, and non-photochemical quenching activities of Arabidopsis showed significantly increment under betaine-treated plant compared to betaine-untreated. Meanwhile, no significant increment was revealed on leaf number, plant height, chlorophyll fluorescence, photochemical quenching activities, leaf temperature and percentage of RWC under betaine-treated Arabidopsis. In conclusion, this study suggests that exogenous application of betaine improves certain physiological and morphological parameters of Arabidopsis thaliana plant to sustain under water and salinity stresses. Therefore, ensuring the plant to sustain yield and production under limited water resources and moderate salinity stress. Betaine Betaine Dissertations, Academic Sila masukkan subject wajib Dissertations, Academic untuk semua tesis.. Terima kasih Organic Compounds Water Stress In Plants Thesis |
| spellingShingle | 2018_Functions OF Betaine to Reduce The Detrimental Effects of Water And Salt Stresses on Morphology And Physiology of Arabidopsis thaliana |
| state | Terengganu |
| subject | Betaine Dissertations, Academic |
| summary | Water and salinity stresses commonly known as an abiotic stresses that affects plant productions by reducing morphology and physiology characteristics of the plant. Betaine is compatible solutes which can be applied exogenously to the plants and provide resist mechanism under stress condition. The objective of this study are to determine the effects of exogenous application of betaine on morphology and physiology changes of Arabidopsis thaliana under different water levels and different salinity concentrations. In the first experiment, four different water levels [W1 (1cm flooding); W2 (saturated); W3 (alternative 1cm flooding) and W4 (alternative saturated)] were applied to the plants. While in the second experiment, five different salinity concentrations, [S0 (0 dS/m); S1 (2 dS/m); S2 (4 dS/m); S3 (6 dS/m) and S4 (8 dS/m)] were applied to the plants. Betaine was applied with (50mM) or without (0mM) on both experiments. Some of morphology and physiology parameters were observed and determined as per guidelines for both experiment. The treatments in both experiment were laid out as a completely randomized design (CRD) with three-time replications. The first experiment showed the different water level treatments affected morphological and physiological of Arabidopsis plant. Betaine was significantly increasing the leaf area, root length, FW and DW of shoot and root, increased in chlorophyll content in the leaf, stomatal conductance, stomatal aperture and seed weight of Arabidopsis compared to betaine-untreated plant. However, betaine was found not significantly increased the leaf number, plant height, root-shoot ratio, chlorophyll fluorescence and others related parameters, percentage of RWC, leaf temperature, total weight loss and seed number. Meanwhile, in the second experiment, plant morphology and physiology of plant was affected by different salinity concentrations. Betaine under salinity stress showed significantly effects especially under treatment S3 (6 dS/m NaCl) and S4 (8 dS/m NaCl) compared to others treatment. However, only leaf area, FW and DW of plant, chlorophyll content, and non-photochemical quenching activities of Arabidopsis showed significantly increment under betaine-treated plant compared to betaine-untreated. Meanwhile, no significant increment was revealed on leaf number, plant height, chlorophyll fluorescence, photochemical quenching activities, leaf temperature and percentage of RWC under betaine-treated Arabidopsis. In conclusion, this study suggests that exogenous application of betaine improves certain physiological and morphological parameters of Arabidopsis thaliana plant to sustain under water and salinity stresses. Therefore, ensuring the plant to sustain yield and production under limited water resources and moderate salinity stress. |
| title | 2018_Functions OF Betaine to Reduce The Detrimental Effects of Water And Salt Stresses on Morphology And Physiology of Arabidopsis thaliana |
| title_full | 2018_Functions OF Betaine to Reduce The Detrimental Effects of Water And Salt Stresses on Morphology And Physiology of Arabidopsis thaliana |
| title_fullStr | 2018_Functions OF Betaine to Reduce The Detrimental Effects of Water And Salt Stresses on Morphology And Physiology of Arabidopsis thaliana |
| title_full_unstemmed | 2018_Functions OF Betaine to Reduce The Detrimental Effects of Water And Salt Stresses on Morphology And Physiology of Arabidopsis thaliana |
| title_short | 2018_Functions OF Betaine to Reduce The Detrimental Effects of Water And Salt Stresses on Morphology And Physiology of Arabidopsis thaliana |
| title_sort | 2018_functions of betaine to reduce the detrimental effects of water and salt stresses on morphology and physiology of arabidopsis thaliana |