| Changes of phenotype and soluble protein content in wheat seedlings under four kinds of abiotic stress |
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| DOI：10.7606/j.issn.1000-7601.2018.02.17 |
| Key Words: wheat seedling abiotic stress phenotype soluble protein stress-resistance physiology |
| Author Name | Affiliation | | WANG Xiao-yu | College of Life Sciences/State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling, Shaanxi 712100, China | | ZHANG Yan-e | College of Life Sciences/State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling, Shaanxi 712100, China | | ZHANG Lin-sheng | College of Life Sciences/State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling, Shaanxi 712100, China |
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| Abstract: |
| The changes in phenotype and total soluble protein content were determined of roots, stems and leaves of wheat seedlings by exposing to different abiotic stresses, such as low temperature (4℃), high temperature (42℃), high salinity (800 mM NaCl) and drought (20% PEG). Stresses caused inhibition in growth at different extent. Desiccation of plants occurred due to high temperature, high salinity and drought whereas low temperature resulted undersized individuals. The average length of root was about 5 cm which was 8～9 cm shorter than the wild type under high temperature. On the contrary, it is 6 cm shorter when treated with low temperature, high salinity and drought. Moreover, the total soluble protein content of experimental parts increased due to stresses. According to results, root was sensitive to stresses and it lad much lower protein content than stems and leaves. The protein content of root, stem reached 3.918 μg·mg-1 and 15 μg·mg-1 for high temperature at 12 h and 24 h, respectively, while in leaves it kept increasing till 72 h. |
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