Cell-to-cell Movement of Potato Virus X Proteins in Different Plant Species

Heppler, Marty; Verchot, Jeanmarie

doi:10.1017/s1431927604882655

Cited by 1 publication

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“…Potato virus X (PVX) is a positive-strand RNA virus that infects potatoes, although primarily studied in model hosts, Nicotiana benthamiana and Arabidopsis. In N. benthamiana leaves inoculated with the PVX infectious clone containing the green fluorescent protein (GFP) gene [ 1 , 2 , 3 ], the primary infection occurs in foci that expand radially by cell-to-cell movement in all directions. PVX-GFP fluorescent foci typically appear at a macroscopic level within the first 2 or 3 days post-inoculation (dpi).…”

Section: Introductionmentioning

confidence: 99%

Transcriptional Regulatory Networks Associate with Early Stages of Potato Virus X Infection of Solanum tuberosum

Herath

Verchot

2021

IJMS

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Potato virus X (PVX) belongs to genus Potexvirus. This study characterizes the cellular transcriptome responses to PVX infection in Russet potato at 2 and 3 days post infection (dpi). Among the 1242 differentially expressed genes (DEGs), 268 genes were upregulated, and 37 genes were downregulated at 2 dpi while 677 genes were upregulated, and 265 genes were downregulated at 3 dpi. DEGs related to signal transduction, stress response, and redox processes. Key stress related transcription factors were identified. Twenty-five pathogen resistance gene analogs linked to effector triggered immunity or pathogen-associated molecular pattern (PAMP)-triggered immunity were identified. Comparative analysis with Arabidopsis unfolded protein response (UPR) induced DEGs revealed genes associated with UPR and plasmodesmata transport that are likely needed to establish infection. In conclusion, this study provides an insight on major transcriptional regulatory networked involved in early response to PVX infection and establishment.

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Section: Introductionmentioning

confidence: 99%