Please use this identifier to cite or link to this item:
https://hdl.handle.net/10356/179874
Title: | Salt tolerance in Machilus faberi: elucidating growth and physiological adaptations to saline environments | Authors: | Mo, Qiong Liu, Yang Wei, Haohui Jiang, Liyuan Wu, En Lin, Ling Yang, Qihong Yu, Xiaoying Yan, Lihong Li, Yanlin |
Keywords: | Medicine, Health and Life Sciences | Issue Date: | 2024 | Source: | Mo, Q., Liu, Y., Wei, H., Jiang, L., Wu, E., Lin, L., Yang, Q., Yu, X., Yan, L. & Li, Y. (2024). Salt tolerance in Machilus faberi: elucidating growth and physiological adaptations to saline environments. Biology, 13(2), 75-. https://dx.doi.org/10.3390/biology13020075 | Journal: | Biology | Abstract: | Adversity stress is the main environmental factor limiting plant growth and development, including salt and other stress factors. This study delves into the adaptability and salt tolerance mechanisms of Machilus faberi Hemsl, a species with potential for cultivation in salinized areas. We subjected the plants to various salt concentrations to observe their growth responses and to assess key physiological and biochemical indicators. The results revealed that under high salt concentrations (500 and 700 mmol-1/L), symptoms such as leaf yellowing, wilting, and eventual death were observed. Notably, plant height and shoot growth ceased on the 14th day of exposure. Chlorophyll content (a, b, total a + b, and the a/b ratio) initially increased but subsequently decreased under varying levels of salt stress. Similarly, the net photosynthetic rate, stomatal conductance, leaf water content, and root activity significantly declined under these conditions. Moreover, we observed an increase in malondialdehyde levels and relative conductivity, indicative of cellular damage and stress. The activity of superoxide dismutase and ascorbate peroxidase initially increased and then diminished with prolonged stress, whereas peroxidase activity consistently increased. Levels of proline and soluble protein exhibited an upward trend, contrasting with the fluctuating pattern of soluble sugars, which decreased initially but increased subsequently. In conclusion, M. faberi exhibits a degree of tolerance to salt stress, albeit with growth limitations when concentrations exceed 300 mmol-1/L. These results shed light on the plant's mechanisms of responding to salt stress and provide a theoretical foundation for its cultivation and application in salt-affected regions. | URI: | https://hdl.handle.net/10356/179874 | ISSN: | 2079-7737+ | DOI: | 10.3390/biology13020075 | Schools: | School of Biological Sciences | Rights: | © 2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/). | Fulltext Permission: | open | Fulltext Availability: | With Fulltext |
Appears in Collections: | SBS Journal Articles |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
biology-13-00075.pdf | 3.07 MB | Adobe PDF | View/Open |
SCOPUSTM
Citations
50
2
Updated on Nov 5, 2024
Page view(s)
78
Updated on Nov 11, 2024
Download(s)
8
Updated on Nov 11, 2024
Google ScholarTM
Check
Altmetric
Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.