Denis M. Persley

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The detection, distribution, molecular and biological properties, vector relations and control of tospoviruses present in Australia, including Tomato spotted wilt virus (TSWV), Capsicum chlorosis virus (CaCV) and Iris yellow spot virus (IYSV), are reviewed. TSWV occurs throughout Australia where it has caused serious sporadic epidemics since itwas first(More)
Electronicdeliveryofcropprotection information has takena leapforward withthe release ofthefirst module of the Crop Protection Compendium in January 1997. The module is part ofan ambitious programby CABInternational toproduce aneffective, global pestmanagement database oncompact disc and isduefor completion in 1999. Module one of the Compendium presents(More)
A previously undescribed tospovirus infecting tomato, capsicum and chilli in Queensland was characterised. The virus reacted with antibodies to serogroup IV tospoviruses, and the complete nucleotide sequence of its nucleocapsid protein gene indicated that it was a new tospovirus species. Sequence identities at the nucleotide and amino acid levels were <85%(More)
Papaya ringspot virus (PRSV), which has recently been identified inAustralia, is the major limiting factor in papaya production worldwide. In thispaper we report the development of two Australian papaya cultivars that areimmune to infection with PRSV. Papaya somatic embryos were transformed viamicroprojectile bombardment using a construct containing an(More)
In 2002 at Virginia, South Australia, capsicum cultivars having the Tsw resistance gene against Tomato spotted wilt virus (TSWV) developed symptoms typical of TSWV infection and several glasshouse-grown crops were almost 100% infected. Samples reacted with TSWV antibodies in ELISA. Virus isolates from infected plants induced severe systemic symptoms, rather(More)
Candidatus Phytoplasma australiense (Ca. P. australiense) is associated with the plant diseases strawberry lethal yellows (SLY), strawberry green petal (SGP), papaya dieback (PDB), Australian grapevine yellows (AGY) and Phormium yellow leaf (PYL; New Zealand). Strawberry lethal yellows disease is also associated with a rickettsia-like-organism (RLO) or(More)