The PopbZIP2‐PopMYB4 regulatory module enhances disease resistance in poplars by modulating proanthocyanidin accumulation

New Phytologist, Год журнала: 2025, Номер unknown

Опубликована: Фев. 13, 2025

Summary Anthracnose, caused by Colletotrichum gloeosporioides , is a significant fungal disease that affects poplar trees globally, leading to reduced yields and substantial economic losses. Proanthocyanidins (PAs) play key role in resistance pathogens; however, the mechanisms which PAs mediate anthracnose remain poorly understood. In this study, we identified PopbZIP2 transcription factor‐encoding gene was initially expressed infected leaves subsequently uninfected response C. infection. As transcriptional activator, can bind promoters of target genes PopGRF3 PopAPA1 increasing proanthocyanidin levels cells enhance defense against pathogens. It noteworthy protein directly inhibit pathogen growth. We further demonstrated PopMYB4 interact with PopbZIP2, reducing its promoter binding activity thereby inhibiting expression PopAPA1. Overexpression led sensitivity gloeosporiodes . Under normal conditions, soluble insoluble contents transgenic plants were significantly lower compared control. The dual regulation immune responses PopMYB4‐PopbZIP2 module unveils novel regulatory mechanism Populus enhancing our understanding complex networks governing responses.

Язык: Английский

Genome-Wide Association Study on Cowpea seed coat color using RGB images

Molecular Breeding, Год журнала: 2024, Номер 44(12)

Опубликована: Ноя. 19, 2024

Язык: Английский