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Tytuł pozycji:

Mapping the Gene Expression Spectrum of Mediator Subunits in Response to Viroid Infection in Plants

Tytuł :
Mapping the Gene Expression Spectrum of Mediator Subunits in Response to Viroid Infection in Plants
Autorzy :
Nath, Vishnu Sukumari
Shrestha, Ankita
Awasthi, Praveen
Mishra, Ajay Kumar
Kocábek, Tomáš
Matoušek, Jaroslav
Sečnik, Andrej
Jakše, Jernej
Radišek, Sebastjan
Hallan, Vipin
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Temat :
Communication
differential expression
hop
mediator complex
Nicotiana benthamiana
Nicotiana tabacum
pathogen
quantitative reverse transcription PCR
viroid
Źródło :
International Journal of Molecular Sciences
Wydawca :
MDPI, 2020.
Rok publikacji :
2020
Oryginalny identyfikator :
pmc: PMC7177877
pmid: 32260277
Język :
English
ISSN :
1422-0067
DOI :
10.3390/ijms21072498
The mediator (MED) represents a large, conserved, multi-subunit protein complex that regulates gene expression through interactions with RNA polymerase II and enhancer-bound transcription factors. Expanding research accomplishments suggest the predominant role of plant MED subunits in the regulation of various physiological and developmental processes, including the biotic stress response against bacterial and fungal pathogens. However, the involvement of MED subunits in virus/viroid pathogenesis remains elusive. In this study, we investigated for the first time the gene expression modulation of selected MED subunits in response to five viroid species (Apple fruit crinkle viroid (AFCVd), Citrus bark cracking viroid (CBCVd), Hop latent viroid (HLVd), Hop stunt viroid (HSVd), and Potato spindle tuber viroid (PSTVd)) in two model plant species (Nicotiana tabacum and N. benthamiana) and a commercially important hop (Humulus lupulus) cultivar. Our results showed a differential expression pattern of MED subunits in response to a viroid infection. The individual plant MED subunits displayed a differential and tailored expression pattern in response to different viroid species, suggesting that the MED expression is viroid- and plant species-dependent. The explicit evidence obtained from our results warrants further investigation into the association of the MED subunit with symptom development. Together, we provide a comprehensive portrait of MED subunit expression in response to viroid infection and a plausible involvement of MED subunits in fine-tuning transcriptional reprogramming in response to viroid infection, suggesting them as a potential candidate for rewiring the defense response network in plants against pathogens.

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