Leafhopper Vectors and the Plant Disease Agents They Transmit in Australia

Grylls, NE

doi:10.1016/b978-0-12-470280-6.50009-x

Cited by 31 publications

(13 citation statements)

References 35 publications

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“…Austroagallia torrida is a known vector of viral and bacterial plant diseases (Grylls 1979) but we could find no literature indicating the vector status of this leafhopper for TBB or any other phytoplasma. Austroagallia torrida as well as B. angustatus have, however, both been suggested as possible vectors of Australian grapevine yellows (Osmelak et al .…”

Section: Introductionmentioning

confidence: 91%

Vector status of three leafhopper species for Australian lucerne yellows phytoplasma

Pilkington

Gurr

Fletcher

et al. 2004

Australian Journal of Entomology

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The leafhoppers Orosius argentatus (Evans), Austroagallia torrida (Evans) and Batracomorphus angustatus (Osborn) were used in transmission tests to determine their vector status for the phytoplasma associated with Australian lucerne yellows (ALuY). Caged, seed-grown lucerne plants were monitored for foliar symptom expression after feeding by leafhoppers transferred from ALuY symptomatic lucerne plants. Twelve of 25 plants developed phytoplasma disease-like symptoms including stunting and yellowing. The most pronounced foliar symptoms were displayed by five plants that had been fed on by O. argentatus and four plants that had been fed on by A. torrida. One plant, fed on by O. argentatus , showed the distinctive root symptoms of ALuY . A phytoplasma was identified by electron microscopy in two plants fed on by O. argentatus and one by A. torrida. For each group of plants that had been fed on by a single leafhopper species, one plant was phytoplasma positive as determined by the polymerase chain reaction (PCR) using universal primers. The phytoplasma detected by PCR in the plant fed on by A. torrida was identified by restriction fragment length polymorphism (RFLP) analysis as the tomato big bud (TBB) phytoplasma. The PCR product from two plants fed on by B. angustatus and O. argentatus were too faint for RFLP analysis. PCR assays were conducted on DNA extracted from the head and thorax of each leafhopper species from transmission tests and from field-collected insects, but no phytoplasma DNA was detected. These findings suggest O. argentatus is a vector of the ALuY pathogen and A. torrida is a vector of the TBB phytoplasma.

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Section: Introductionmentioning

confidence: 91%

Vector status of three leafhopper species for Australian lucerne yellows phytoplasma

Pilkington

Gurr

Fletcher

et al. 2004

Australian Journal of Entomology

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“…9c) (Aulacorthum) 6 -Inner faces of tubercles convergent (Fig. see Grylls, 1979). They are small, most species being 2-9 mm long, phytophagous insects with piercing mouthparts, sensoriated antennal pedicels, facial carinae, a characteristic large movable spur on the hind tibia and a collar-like pronotum deeply indented on the posterior edge.…”

Section: Hemipteramentioning

confidence: 99%

The free‐living pterygote insects of Gough Island, South Atlantic Ocean

Jones

Chown

Webb

et al. 2003

Systematics and Biodiversity

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“…S . furcifera is the only vector reported for PaSV (Driven & van Hoof, 1960) and, although this delphacid has been recorded from tropical Australia (Grylls, 1979), it is not common in south-east Queensland. However, Sogatella kolophon (Kirk.)…”

Section: Introductionmentioning

confidence: 93%

Transmission of pangola stunt virus by Sogatella kolophon

Greber¹,

Gowanlock²,

Hicks³

et al. 1988

Annals of Applied Biology

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A fijivirus causing minor enations, stunting, leaf notching, seed head deformity and excess tillering of Digitaria spp. was transmitted from naturally infected Digitaria ciliaris to D. ciliaris, D. decumbens and Urochloa panicoides by the planthopper Sogatella kolophon; 40 -70% of insects transmitted after an incubation period of 15 -21 days, and continued to transmit for up to 30 more days until death. Symptoms developed in test plants 30 -50 days after inoculation. Sogatella longifurcifera failed to transmit the virus under similar conditions. Virus particles were present in roots, stems and leaves of infected plants, and particles were found in regular arrays and random aggregates in fat body cells of transmitting insects. Viroplasm and tubular structures were associated with these particles. Extracts from infective insects contained 10-segment dsRNA when analysed by polyacrylamide gel electrophoresis. Virus survives over winter in planthoppers and D. ciliaris seedlings in frost-free areas of coastal Queensland, but infected plants have debilitated root systems and compete poorly with healthy plants.

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Leafhopper Vectors and the Plant Disease Agents They Transmit in Australia

Cited by 31 publications

References 35 publications

Vector status of three leafhopper species for Australian lucerne yellows phytoplasma

Vector status of three leafhopper species for Australian lucerne yellows phytoplasma

The free‐living pterygote insects of Gough Island, South Atlantic Ocean

Transmission of pangola stunt virus by Sogatella kolophon

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