Meta-Analysis of the Effects of Overexpressed bZIP Transcription Factors in Plants under Drought Stress
Author:
Tao Ran1, Liu Yaqiu1, Chen Su2ORCID, Shityakov Sergey3ORCID
Affiliation:
1. College of Computer and Control Engineering, Northeast Forestry University, Harbin 150040, China 2. State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin 150040, China 3. Laboratory of Chemoinformatics, Infochemistry Scientific Center, ITMO University, Saint-Petersburg 191002, Russia
Abstract
The bZIP (basic leucine zipper) transcription factors have been identified as key regulators of plant responses to drought stress, which limits plant growth and yield. Overexpression of bZIP genes has shown potential in enhancing drought tolerance in various plant species. However, the constrained types of individual studies and inconsistencies among experimental approaches has resulted in a lack of statistical significance and limited the extrapolation of bZIP transcription factor overexpression for plant improvement. We conducted a meta-analysis to evaluate ten measured parameters of drought tolerance in bZIP transcription factor-expressing plants as well as moderators affecting the performance of transgenic plants. The results showed that seven parameters, including survival rate as well as the content of regulatory substances (proline accumulation, H2O2 concentration, CAT activity, POD activity, SOD activity and MDA accumulation), were most affected while the impact on physiological status indicators is not significant. In addition, donor/recipient species, treatment medium, duration and methods of simulating drought stress all significantly impacted the degree of drought stress tolerance in plants to some extent among the considered moderators. The findings underscore the potential of bZIP transcription factors as key targets for genetic engineering approaches aimed at improving plant resilience to water scarcity.
Funder
Fundamental Research Funds for the Central Universities
Subject
Plant Science,Ecology,Ecology, Evolution, Behavior and Systematics
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