Final answer:
In plants, transcription factors like WRKY, AP2/ERF, bZIP, MYC, MYB, and NAC play key roles in regulating the immune response by modulating gene expression in response to biotic stress.
Step-by-step explanation:
The transcription factors required for immune response in plants are from various families, including WRKY, AP2/ERF, bZIP, MYC, MYB, and NAC. These transcription factors interact with different proteins to regulate gene expression in response to environmental stressors like pathogens. These interactions can lead to either activation or repression of defense mechanisms, ultimately determining the presence and abundance of proteins related to defense in a plant cell.