Transcriptome Analysis Reveals Underlying Immune Response Mechanism of Fungal (Penicillium Oxalicum) Disease in Gastrodia Elata Bl. F. Glauca S. Chow (Orchidaceae)

Overview

Journal BMC Plant Biol

Publisher Biomed Central

Specialty Biology

Date 2020 Sep 30

PMID 32993485

Citations 9

Authors

Yanhua Wang

Yugang Gao

Pu Zang

Yue Xu

Affiliations

Soon will be listed here.

Abstract

Background: Gastrodia elata Bl. f. glauca S. Chow is a medicinal plant. G. elata f. glauca is unavoidably infected by pathogens in their growth process. In previous work, we have successfully isolated and identified Penicillium oxalicum from fungal diseased tubers of G. elata f. glauca. As a widespread epidemic, this fungal disease seriously affected the yield and quality of G. elata f. glauca. We speculate that the healthy G. elata F. glauca might carry resistance genes, which can resist against fungal disease. In this study, healthy and fungal diseased mature tubers of G. elata f. glauca from Changbai Mountain area were used as experimental materials to help us find potential resistance genes against the fungal disease.

Results: A total of 7540 differentially expressed Unigenes (DEGs) were identified (FDR < 0.01, log2FC > 2). The current study screened 10 potential resistance genes. They were attached to transcription factors (TFs) in plant hormone signal transduction pathway and plant pathogen interaction pathway, including WRKY22, GH3, TIFY/JAZ, ERF1, WRKY33, TGA. In addition, four of these genes were closely related to jasmonic acid signaling pathway.

Conclusions: The immune response mechanism of fungal disease in G. elata f. glauca is a complex biological process, involving plant hormones such as ethylene, jasmonic acid, salicylic acid and disease-resistant transcription factors such as WRKY, TGA.

Citing Articles

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