Transmission of potato spindle tuber viroid by aphids

  title={Transmission of potato spindle tuber viroid by aphids},
  author={J. A. de Bokx and Paul G. M. Piron},
  journal={Netherlands Journal of Plant Pathology},
Aulacorthum solani (Kaltenbach),Macrosiphum euphorbiae (Thomas) andMyzus persicae (Sulzer) were used for transmission experiments in laboratory and glasshouse. As inoculum served PSTV-containing tomato foliage and artificial diets containing purified PSTV. It is concluded thatM. euphorbiae can transmit PSTV in a non-persistent way.SamenvattingAardappelspindelknolviroïde (PSTV) wordt tot een vrij ‘nieuwe’ groep van pathogenen, de viroïden, gerekend. De ziekte, die er door wordt veroorzaakt… Expand
Transmission by aphids of potato spindle tuber viroid encapsidated by potato leafroll luteovirus particles
The results indicate that PLRV can assist PSTVd in its transmission by M. persicae and that the viroid was not detected by dot-blotting in any plant of P. floridana and D. stramonium in this experiment. Expand
Assessment of pospiviroid transmission by myzus persicae, macrolophus pygmaeus and bombus terrestris
It is believed that the use of pollinating insects and biological control agents in greenhouses does not imply a major phytosanitary risk for viroid dispersal. Expand
The discovery and eradication of potato spindle tuber viroid in Canada
With the recognition of pathogenic nature of viroid, specific detection methodologies were developed, which enabled detection of PSTVd in seed-potato tubers prior to their planting in the field, and thus PSTVD was prevented from spreading the disease. Expand
Viroid-insect-plant interactions in view of transmission routes
A first goal was to investigate the role of weeds as potential reservoirs for pospiviroids, and the transmission pathway of “transencapsidation” in the luteovirus Potato leafroll virus (PLRV) was investigated for two Pospiviroid species. Expand
Identification and epidemiology of pospiviroids
Phylogenetic studies provided evidence that the PSTVd isolates from tomato originated from vegetatively propagated, solanaceous host plants, and several experiments showed that mechanical inoculation is a likely way of pospiviroid transmission between these crops. Expand
Rasta Disease of Tomato in Ghana is Caused by the Pospiviroids Potato spindle tuber viroid and Tomato apical stunt viroid.
PSTVd and TASVd isolates from Ghana induced rasta symptoms in the highly susceptible tomato cultivar Early Pak 7 and mild or no symptoms in Glamour, and symptomless infections in a number of other solanaceous species. Expand
Viroid–insect–plant interactions
Examination of plant-infecting viroids that, similar to plant viruses, can depend upon insect vectors to inoculate plant hosts, with an emphasis on insect vectors is examined. Expand
Studies on Viroids Occurring in India
Several viroids infecting citrus, tomato, apple, ornamentals, rubber and grapes have been characterized from India and their sequences have been deposited in the sequence database. Expand
Euphresco Final Report Detection and Epidemiology of Pospiviroids 2 ( DEP 2 )
Pospiviroids are plant pathogens, composed only of infectious circular RNA molecules, which are both latent on many ornamentals and harmful for cultivated plant species like tomato, potato, sweetExpand
Viroids: New and Continuing Risks for Horticultural and Agricultural Crops.
Identification of viroid-infected plants can be accomplished by either symptomatology on indicator hosts, a classical method still used in many certification programs, or by molecular methods such as nucleic acid hybridization or polymerase chain reaction. Expand


Detection of chrysanthemum stunt and potato spindle tuber viroids by polyacrylamide gelelectrophoresis
Stunt viroid can be detected in chrysanthemums with the polyacrylamide gelectrophoresis (PAGE) method developed by Morris and Smith (1977) for potato spindle tuber viroid. The time of sampleExpand
The effects of temperature and light on the symptom expression and viroid concentration in tomato of a severe strain of potato spindle tuber viroid
Indexing on tomato of dilution series prepared from young tomato seedlings infected with a severe strain of potato spindle tuber viroid indicated that viroid concentration rose more quickly in tomato at 31°C than at 23°C at various light intensities. Expand
Potato spindle tuber "virus". IV. A replicating, low molecular weight RNA.
It is shown that the infectious RNA occurs in the form of several species with molecular weights ranging from 2.5 × 10 4 to 1.1 × 10 5 daltons, and the term “viroid” is proposed to designate potato spindle tuber “virus” RNA and other RNAs with similar properties. Expand
Potato Spindle Tuber Virus: A Plant Virus with Properties of a Free Nucleic Acid
Infectious entities, extractable, with phosphate buffer, from tissue infected with potato spindle tuber virus and inciting symptoms on tomato that are typical of this virus, have propertiesExpand
Experiments with a newly developed continuous‐flow artificial feeding apparatus for aphids showed that a nutritionally imbalanced diet may indeed favour wing production in case such a diet stimulates restlessness of the aphids. Expand
The effects of temperature and light on the symptom
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