AI Article Synopsis
- Ethylene-responsive factors (ERFs) are important transcription factors in plants known for their role in defense responses, but their function in potatoes is less understood compared to Arabidopsis.
- Overexpressing the CaPF1 gene from pepper in potato plants enhances their tolerance to various stresses like freezing, heat, and heavy metals.
- Additionally, while CaPF1 leads to increased stress tolerance, it also delays the formation of microtubers in these potato plants.
Article Abstract
Ethylene-responsive factors (ERFs) are plant-specific transcription factors, many of which have been linked to plant defense responses. However, little is known about the functional significance of ERF genes in potato plants compared to the model plant species Arabidopsis. We show here that overexpression of CaPF1, an ERF/AP2-type pepper transcription factor gene, effectively increased tolerance to freezing, heat, heavy metal, and oxidative stress in potatoes. Interestingly, CaPF1 was involved in tuber formation in potato plants. The time course of microtuber formation was significantly retarded in potato plants that overexpressed CaPF1 compared with wild-type potato plants. Overall, the results of the present study indicate that the pepper transcription factor gene, CaPF1, is involved in promotion of multiple stress tolerance and retardation of in vitro tuberization in potato plants.
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| http://dx.doi.org/10.1007/s00425-008-0782-5 | DOI Listing |
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