Arabidopsis F-box proteins D5BF1 and D5BF2 negatively regulate Agrobacterium-mediated transformation and tumorigenesis.

Autor: Hu Q; State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, China.; Institute of Future Agriculture, Northwest A&F University, Yangling, Shaanxi, China., Li X; State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, China.; Institute of Future Agriculture, Northwest A&F University, Yangling, Shaanxi, China., Xi W; State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, China.; Institute of Future Agriculture, Northwest A&F University, Yangling, Shaanxi, China., Xu J; State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, China.; Institute of Future Agriculture, Northwest A&F University, Yangling, Shaanxi, China., Xu C; State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, China.; Institute of Future Agriculture, Northwest A&F University, Yangling, Shaanxi, China., Ausin I; State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, China.; Institute of Future Agriculture, Northwest A&F University, Yangling, Shaanxi, China., Wang Y; State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, China.; Institute of Future Agriculture, Northwest A&F University, Yangling, Shaanxi, China.
Jazyk: angličtina
Zdroj: Molecular plant pathology [Mol Plant Pathol] 2024 Sep; Vol. 25 (9), pp. e70006.
DOI: 10.1111/mpp.70006
Abstrakt: The pathogen Agrobacterium tumefaciens is known for causing crown gall tumours in plants. However, it has also been harnessed as a valuable tool for plant genetic transformation. Apart from the T-DNA, Agrobacterium also delivers at least five virulence proteins into the host plant cells, which are required for an efficient infection. One of these virulence proteins is VirD5. F-box proteins, encoded in the host plant genome or the Ti plasmid, and the ubiquitin/26S proteasome system (UPS) also play an important role in facilitating Agrobacterium infection. Our study identified two Arabidopsis F-box proteins, D5BF1 and D5BF2, that bind VirD5 and facilitate its degradation via the UPS. Additionally, we found that Agrobacterium partially suppresses the expression of D5BF1 and D5BF2. Lastly, stable transformation and tumorigenesis efficiency assays revealed that D5BF1 and D5BF2 negatively regulate the Agrobacterium infection process, showing that the plant F-box proteins and UPS play a role in defending against Agrobacterium infection.
(© 2024 The Author(s). Molecular Plant Pathology published by British Society for Plant Pathology and John Wiley & Sons Ltd.)
Databáze: MEDLINE
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