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Insect vector interactions with persistently transmitted viruses.
- S. Hogenhout, E. Ammar, A. Whitfield, M. Redinbaugh
- BiologyAnnual Review of Phytopathology
- 4 August 2008
Progress made in research on vector interactions of the more than 200 plant viruses that are transmitted by hemipteroid insects beginning a few hours or days after acquisition and for up to the life of the insect, i.e., in a persistent-circulative or persistent-propagative mode.
Asian citrus psyllid, Diaphorina citri, vector of citrus huanglongbing disease
An updated review of ACP and HLB is presented with an emphasis on the problem in Florida, where the geographic range of the disease is expanding, threatening citrus industries in new areas.
Phytoplasmas: bacteria that manipulate plants and insects.
- S. Hogenhout, K. Oshima, E. Ammar, S. Kakizawa, Heather N. Kingdom, S. Namba
- Biology, MedicineMolecular plant pathology
- 1 July 2008
Phytoplasma can increase fecundity and survival of insect vectors, and may influence flight behaviour and plant host preference of their insect hosts, but generally do not negatively affect the fitness of their major insect vectors.
Drosophila melanogaster Mounts a Unique Immune Response to the Rhabdovirus Sigma virus
- C. Tsai, E. McGraw, E. Ammar, R. Dietzgen, S. Hogenhout
- BiologyApplied and Environmental Microbiology
- 31 March 2008
The nature of the Drosophila innate immune response to SIGMAV infection is revealed by quantitative reverse transcription-PCR analysis of differentially expressed genes identified by microarray analysis and the immune response of the host with respect to two nonenveloped viruses is compared.
AY-WB phytoplasma secretes a protein that targets plant cell nuclei.
- Xiaodong Bai, V. R. Correa, T. Toruño, E. Ammar, S. Kamoun, S. Hogenhout
- BiologyMolecular Plant-Microbe Interactions
This work shows that AY-WB phy toplasma produces a protein that targets the nuclei of plant host cells; this protein is a potential phytoplasma effector that may alter plant cell physiology.
Cellular and molecular aspects of rhabdovirus interactions with insect and plant hosts.
- E. Ammar, Chi-Wei Tsai, A. Whitfield, M. Redinbaugh, S. Hogenhout
- BiologyAnnual Review of Entomology
An overview of plant rhabdovirus interactions with their insect hosts and of how these interactions compare with those of vertebrates, invertebrates, and plants is provided and cellular and molecular aspects of vector/host specificity, transmission barriers, and virus receptors in the vectors are focused on.
Mutations in the potyvirus helper component protein: effects on interactions with virions and aphid stylets.
It is shown that HC of potato virus C (PVC), a naturally occurring variant of Potato virus Y (PVY) that has the K --> E mutation, lacks the ability to be retained in stylets, whereas PVY HC is retained.
Acquisition, Replication and Inoculation of Candidatus Liberibacter asiaticus following Various Acquisition Periods on Huanglongbing-Infected Citrus by Nymphs and Adults of the Asian Citrus Psyllid
The results strongly suggest that Las multiplies in both nymphs and adults of D. citri but attains much higher levels in a shorter period of time post-acquisition when acquired by nymphS than when acquisition by adults, and that adults may require longer access to infected plants compared tonymphs for Las to reach higher levels on the vector.
Plant and animal rhabdovirus host range: a bug's view.
Leafhopper and planthopper transmission of plant viruses.
Plant diseases formerly thought to be caused by hopper transmitted viruses have subsequently been shown to be associated with phloem-limited, rickettsial ike organisms or xylem-limited bacteria.