PS Seminar Series: Towards Understanding the Mechanisms of the Tomato Lethal Disease Caused by the Infection of a Non-coding Viral RNA

schedule Date & time
Date/time
26 Jul 2019 4:30pm - 26 Jul 2019 5:30pm
person Speaker

Speakers

Prof Ping Xu, Shanghai Normal University Shanghai, China
next_week Event series
contact_support Contact

Content navigation

Description

Abstract - I will talk about our recent progress in understanding of the genetic and molecular mechanisms underlying a tomato lethal disease caused by the infection of Cucumber mosaic virus (CMV) associated with D satellite RNA (CMV/D satRNA).  Previous work has shown that CMV/D satRNA induces programmed cell death in developing vascular cells which leads to rapid systemic necrosis and plant death. The necrogenicity is determined by three nucleotides near the 3’ end of DsatRNA. The lethal disease only occurs in tomato and its close wild relatives.  I will further report the results from the analysis of small RNA (sRNA) profiling and degradome in the infected plants and discuss the role of RDR6 and SGS3 in D satRNA-induced rapid plant death.

Biography - coming soon

Location

Eucalyptus Room (S2.05), Level 2, RN Robertson Building (46), ANU

Upcoming events in this series

Jack Wess
1 Aug 2025 | 1pm

Fungal diseases are among the most significant causes of wheat yield loss globally and pose a serious threat to food security.

View the event
Distinguished Prof Natalia Dudareva, Purdue University
11 Aug 2025 | 1 - 2pm

Plants synthesize an amazing diversity of volatile organic compounds (VOCs) that facilitate interactions with their environment, ranging from attracting pollinators and seed dispersers to protecting themselves from pathogens, parasites, and herbivores.

View the event
Natalie Tsang
15 Aug 2025 | 3:30pm

Hydrogen peroxide (Hâ‚‚Oâ‚‚) is a key retrograde signal in plants, linking chloroplast-derived stress cues to nuclear gene expression.

View the event