A LlWRKY33-LlHSFA4-LlCAT2 module confers resistance to Botrytis cinerea in lily.

ABSTRACT: Gray mold caused by Botrytis cinerea is one of the major threats in lily production. However, limited information is available about the underlying defense mechanism against B. cinerea in lily. Here, we characterized a nuclear-localized class A heat stress transcription factor (HSF)-LlHSFA4 from lily (Lilium longiflorum), which positively regulated the response to B. cinerea infection. LlHSFA4 transcript and its promoter activity were increased by B. cinerea infection in lily, indicating its involvement in the response to B. cinerea. Virus-induced gene silencing (VIGS) of LlHSFA4 impaired the resistance of lily to B. cinerea. Consistent with its role in lily, overexpression of LlHSFA4 in Arabidopsis (Arabidopsis thali

SUBMITTER: Ding L 

PROVIDER: S-EPMC10809907 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature