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

MM
23 Sep 2025 | 2pm

Mitochondrial biogenesis in plants is a complex and tightly regulated process crucial for cellular energy production, metabolic regulation, and stress responses.

View the event
Sareena Sahab
31 Oct 2025 | 12pm

This presentation will explore the application of precision gene editing technologies for trait enhancement in grain crops, with a focus on the integrated platform capabilities developed at Agriculture Victoria (AgVic).

View the event
James Nix
14 Nov 2025 | 3:30pm

Cyclic electron flow (CEF) around PSI is essential for balancing ATP/NADPH supply and protecting photosystems under fluctuating light.

View the event
John Kean
1 Dec 2025 | 12pm

This talk will revisit and contextualise the invasion predicted by Cellarius within a framework of biosecurity risk assessment.

View the event