Transmission of Phloem-Limited Viruses to the Host Plants by Their Aphid Vectors

2020 ◽  
pp. 357-382
Author(s):  
Jaime Jiménez ◽  
Aránzazu Moreno ◽  
Alberto Fereres
Keyword(s):  
Host Plants ◽  
Aphid Vectors

Serological detection of plant viruses in their aphid vectors and host plants in Tunisia

EPPO Bulletin ◽  
2002 ◽  
Vol 32 (3) ◽  
pp. 495-498 ◽  
Author(s):  
F. Raboudi ◽  
A. Ben Moussa ◽  
H. Makni ◽  
M. Marrakchi ◽  
M. Makni
Keyword(s):  
Host Plants ◽  
Plant Viruses ◽  
Serological Detection ◽  
Aphid Vectors

scholarly journals Plant Viruses Transmitted in Two Different Modes Produce Differing Effects on Small RNA-Mediated Processes in Their Aphid Vector

2019 ◽  
Vol 3 (1) ◽  
pp. 71-81 ◽  
Author(s):  
Patricia V. Pinheiro ◽  
Jennifer R. Wilson ◽  
Yi Xu ◽  
Yi Zheng ◽  
Ana Rita Rebelo ◽  
...  
Keyword(s):  
Small Rna ◽  
Myzus Persicae ◽  
Host Plants ◽  
Potato Virus Y ◽  
Plant Viruses ◽  
Buchnera Aphidicola ◽  
Antiviral Immune Response ◽  
Aphid Vectors ◽  
Transcriptional Gene Regulation ◽  
Leafroll Virus

Transmission of plant viruses by aphids involves multitrophic interactions among host plants, aphid vectors, and plant viruses. Here, we used small RNA (sRNA) sequencing to visualize the sRNA response of Myzus persicae to two plant viruses that M. persicae transmits in different modes: the nonpersistent Potato virus Y (PVY) versus the persistent Potato leafroll virus (PLRV). Aphids exposed to PLRV produced significantly less 22 mers aligned to the aphid genome, and an abundance of 26 to 27 mers, many of which were predicted to be piRNA. Additionally, expression of Buchnera aphidicola tRNA-derived sRNAs was influenced by PLRV and, to a lesser extent, PVY, suggesting that plant viruses alter the aphid-endosymbiont relationship. Finally, aphids exposed to PLRV-infected plants generated an abundance of unusually long sRNAs and a reduced number of 22 mers against an aphid virus, Myzus persicae densovirus (MpDNV) and had higher MpDNV titer. Expression of the PLRV silencing suppressor P0 in plants recapitulated the increase in MpDNV titer in the absence of PLRV infection. Our results show that plant viruses transmitted in two different modes cause distinct effects on their vector with regards to post-transcriptional gene regulation, symbiosis with Buchnera, and the antiviral immune response of aphids to an aphid-infecting densovirus.

scholarly journals Host Plants Indirectly Influence Plant Virus Transmission by Altering Gut Cysteine Protease Activity of Aphid Vectors

2016 ◽  
Vol 16 (4 suppl 1) ◽  
pp. S230-S243 ◽  
Author(s):  
Patricia V. Pinheiro ◽  
Murad Ghanim ◽  
Mariko Alexander ◽  
Ana Rita Rebelo ◽  
Rogerio S. Santos ◽  
...  
Keyword(s):  
Cysteine Protease ◽  
Protease Activity ◽  
Plant Virus ◽  
Host Plants ◽  
Virus Transmission ◽  
Cysteine Protease Activity ◽  
Aphid Vectors

scholarly journals POTATO VIRUS Y: AN EVOLVING PATHOGEN OF POTATO WORLDWIDE

2017 ◽  
Vol 29 (1) ◽  
pp. 187 ◽  
Author(s):  
Khalid Naveed ◽  
Amjad Abbas ◽  
Luqman Amrao
Keyword(s):  
Potato Virus ◽  
Host Plants ◽  
Potato Virus Y ◽  
Disease Diagnosis ◽  
Growth Stages ◽  
Initial Growth ◽  
Yield Losses ◽  
Recent Past ◽  
Potato Plants ◽  
Aphid Vectors

Potato virus Y (PVY) is one of the important diseases of potato throughout the world wherever potatoes are grown. Yield losses in potato due to PVY are upto 70% if infection occurs at initial growth stages of plants. More than eight PVY strains have been reported worldwide which differ from each other based on symptoms they produce in the infected host plants and at their genetic makeup. In recent past years, new necrotic strains of PVY have emerged which are more damaging as they produce necrotic rings and arms on the tubers of infected plants. With increasing aphid population during last decade, incidence of PVY epidemics has increased worldwide. Managing PVY is difficult as some strains do not produce symptoms on infected potato plants and disease diagnosis becomes difficult. In Pakistan, work on strain differentiation of PVY and their aphid vectors are lacking and there is need of molecular research to identify PVY strains which are present in Pakistan.

Yellow Brazilian Pepper-tree Leaf Galler (suggested common name) Calophya latiforceps Burckhardt (Insecta: Hemiptera: Calophyidae: Calophyinae)

EDIS ◽  
2017 ◽  
Vol 2017 (6) ◽  
Author(s):  
James P. Cuda ◽  
Patricia Prade ◽  
Carey R. Minteer-Killian
Keyword(s):  
Biological Control ◽  
North America ◽  
Natural Enemies ◽  
Host Plants ◽  
Classical Biological Control ◽  
Biological Control Agents ◽  
Pepper Tree ◽  
Brazilian Pepper ◽  
Close Relatives ◽  
Tree Leaf

In the late 1970s, Brazilian peppertree, Schinus terebinthifolia Raddi (Sapindales: Anacardiaceae), was targeted for classical biological control in Florida because its invasive properties (see Host Plants) are consistent with escape from natural enemies (Williams 1954), and there are no native Schinus spp. in North America. The lack of native close relatives should minimize the risk of damage to non-target plants from introduced biological control agents (Pemberton 2000). [...]

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