Murdoch University Research Repository

Welcome to the Murdoch University Research Repository

The Murdoch University Research Repository is an open access digital collection of research
created by Murdoch University staff, researchers and postgraduate students.

Learn more

Low root-to-root transmission of a tobamovirus, yellow tailflower mild mottle virus, and resilience of its virions

Koh, S.H., Li, H., Sivasithamparam, K., Admiraal, R., Jones, M.G.K.ORCID: 0000-0001-5002-0227 and Wylie, S.J.ORCID: 0000-0002-5639-7460 (2018) Low root-to-root transmission of a tobamovirus, yellow tailflower mild mottle virus, and resilience of its virions. Plant Pathology, 67 (3). pp. 651-659.

PDF - Authors' Version
Download (1MB) | Preview
Link to Published Version:
*Subscription may be required


Tobamoviruses are serious pathogens because they have extremely stable virions, they are transmitted by contact, and they often induce severe disease in crops. Knowledge of the routes of transmission and resilience of tobamovirus virions is essential in understanding the epidemiology of this group of viruses. We used an isolate of the tobamovirus yellow tailflower mild mottle virus (YTMMV) to examine root-to-root transmission in soil and in a hydroponic growth environment. Root-to-root transmission occurred rarely, and when it occurred plants did not exhibit systemic movement of the virus from the roots to the shoots over a 30-day period. The resilience of YTMMV virions was tested in dried leaf tissue over time periods from one hour to one year under temperatures ranging from -80°C to 160°C. Infectivity was maintained for at least a year when incubated at -80°C, 22°C or at fluctuating ambient temperatures of 0.8°C to 44.4°C, but incubation under dry conditions at 160°C for >4 days eliminated infectivity. Exposure of virions to 0.1 M sodium hydroxide or 20% w/v skim milk solution for 30 min, treatments recommended for tobamovirus inactivation, did not abolish infectivity of YTMMV.

Item Type: Journal Article
Murdoch Affiliation(s): School of Engineering and Information Technology
Publisher: Wiley-Blackwell
Copyright: © 2017 British Society for Plant Pathology
Item Control Page Item Control Page


Downloads per month over past year