| Research progress on drought stress response of Chinese prickly ash |
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| DOI：10.7606/j.issn.1000-7601.2023.05.32 |
| Key Words: Chinese prickly ash drought resistance phenotype drought resistance physiology drought resistance genetic engineering drought resistance evaluation |
| Author Name | Affiliation | | JI Yuanzu | Gansu Academy of Forestry Sciences, Lanzhou, Gansu 730070, China | | ZHANG De | Gansu Academy of Forestry Sciences, Lanzhou, Gansu 730070, China | | ZHAO Junying | Gansu Academy of Forestry Sciences, Lanzhou, Gansu 730070, China | | ZHAO Tong | Gansu Academy of Forestry Sciences, Lanzhou, Gansu 730070, China | | ZHANG Guangzhong | Gansu Academy of Forestry Sciences, Lanzhou, Gansu 730070, China | | ZHANG Luhe | Gansu Academy of Forestry Sciences, Lanzhou, Gansu 730070, China |
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| Abstract: |
| Chinese prickly ash is an important oil plant and cash crop in China, which is widely distributed in arid and semi\|arid areas. In recent years, with the intensification of global warming, the situation of water shortage has become more severe, and drought has become the main environmental factor affecting the production of Chinese prickly ash. In this paper, the research status of drought resistance of Chinese prickly ash was reviewed from three aspects of growth morphological characteristics, physiological and biochemical changes, and drought resistance molecular mechanisms. The methods for evaluating drought resistance of Chinese prickly ash were analyzed. The results showed that Chinese prickly ash achieved morphological drought resistance mainly through changes in root, stem, and leaf characteristics. The physiological drought resistance were improved by maintaining a high photosynthetic pigment content and adjusting the stomatal opening to maintain a high photosynthetic efficiency, accumulating more osmotic substances to enhance the water holding capacity of leaves and the osmotic adjustment performance of cells, and maintaining a high antioxidant enzyme activity to reduce the damage of reactive oxygen species to cells. Long chain non\|coding RNA (IncRNA) and ZbWRKY transcription factors played an important role in the drought resistance process of Chinese prickly ash, which responded to drought stress by regulating metabolic pathways, synthesizing metabolites and producing plant hormones. The membership function method, principal component analysis method, cluster analysis method, and grey correlation analysis method were used as the main methods for evaluating the drought resistance of Chinese prickly ash. In the future, it is necessary to continue to strengthen the physiological research on drought resistance of Chinese prickly ash and establish a systematic identification and evaluation system for drought resistance. At the same time, multiple omics methods should be used to cultivate excellent drought resistant varieties to provide reference for the study of stress resistance of Chinese prickly ash. |
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