Transcriptome Profiles of During the Early Infection of Resistant and Susceptible Maize Isogenic Lines

Overview

Journal J Fungi (Basel)

Date 2021 Mar 6

PMID 33669631

Citations 4

Authors

Boqi Zhang

Nan Zhang

Qianqian Zhang

Qianya Xu

Tao Zhong

Kaiyue Zhang

Mingliang Xu

Affiliations

Soon will be listed here.

Abstract

The biotrophic fungus causes destructive head smut disease in maize ( L.). To explore the pathogenicity arsenal of this fungus, we tracked its transcriptome changes during infection of the maize seedling mesocotyls of two near-isogenic lines, HZ4 and HZ4R, differing solely in the disease resistance gene . Parasitic growth of resulted in thousands of differentially expressed genes (DEGs) compared with growth in axenic culture. The protein synthesis and energy metabolism of were predominantly enriched with down-regulated DEGs, consistent with the arrested hyphal growth observed following colonization. Nutrition-related metabolic processes were enriched with both up- and down-regulated DEGs, which, together with activated transmembrane transport, reflected a potential transition in nutrition uptake of once it invaded maize. Notably, genes encoding secreted proteins of were mostly up-regulated during biotrophy. -mediated resistance to head smut disease reduced the number of DEGs of , particularly those related to the secretome. These observations deepen our understanding of the mechanisms underlying pathogenicity and -induced innate immunity.

Citing Articles

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