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Influence of the Potato leafroll virus and virus-infected plants on the arrestment of the aphid, Myzus persicae.

Mowry TM, Ophus JD - J. Insect Sci. (2006)

Bottom Line: In only two out of 36 tests were there significantly more aphids settled on sachets containing the virus.In an experiment using excised Physalis floridana leaves, twice as many M. persicae settled on virus-infected leaves as on noninfected control leaves.Taken together, the results indicate that arrestment of M. persicae on potato leaf roll virus-infected plants may be due to enhanced nutritional qualities resulting from disease, but not from direct encounter with or detection of the virus.

View Article: PubMed Central - PubMed

Affiliation: Department of Plant, Soil and Entomological Sciences, University of Idaho, Parma, ID 83660-6699, USA. tmowry@uidaho.edu

ABSTRACT
A series of experiments was conducted using membrane sachets containing MP148 diet or phosphate-buffered sucrose with and without purified Potato leafroll virus to determine if direct encounter with the virus would arrest the aphid, Myzus persicae (Sulzer) (Homoptera: Aphididae). In only two out of 36 tests were there significantly more aphids settled on sachets containing the virus. In all other tests, there were either significantly fewer aphids on sachets containing virus or there were no differences between virus treatments and control sachets without virus. In an experiment using excised Physalis floridana leaves, twice as many M. persicae settled on virus-infected leaves as on noninfected control leaves. Taken together, the results indicate that arrestment of M. persicae on potato leaf roll virus-infected plants may be due to enhanced nutritional qualities resulting from disease, but not from direct encounter with or detection of the virus.

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Arrestment of Myzus persicae on Physalis floridana L. leaves either infected with Potato leafroll virus or noninfected. The experiment was conducted as a dual-treatment test with both leaves presented simultaneously. Bars within clone having the same letter are not significantly different according to ANOVA and Tukey’s HSD test.
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i1536-2442-6-22-1-f03: Arrestment of Myzus persicae on Physalis floridana L. leaves either infected with Potato leafroll virus or noninfected. The experiment was conducted as a dual-treatment test with both leaves presented simultaneously. Bars within clone having the same letter are not significantly different according to ANOVA and Tukey’s HSD test.

Mentions: In the experiment in which excised, PLRV-infected P. floridana leaves served as the virus source for both clones, the mean number of aphids settled on the treatment leaves or not settled differed significantly in the test with clone OUR (F = 103.24, df = 2, P < 0.0001) and in the test with clone BP23 (F = 73.94, df = 2, P < 0.0001) after 24 h (Figure 3). Tukey’s HSD test revealed that significantly more aphids were settled on the PLRV-infected leaves in the clone OUR test (P < 0.0001) and in the clone BP23 test (P < 0.0001).


Influence of the Potato leafroll virus and virus-infected plants on the arrestment of the aphid, Myzus persicae.

Mowry TM, Ophus JD - J. Insect Sci. (2006)

Arrestment of Myzus persicae on Physalis floridana L. leaves either infected with Potato leafroll virus or noninfected. The experiment was conducted as a dual-treatment test with both leaves presented simultaneously. Bars within clone having the same letter are not significantly different according to ANOVA and Tukey’s HSD test.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2990310&req=5

i1536-2442-6-22-1-f03: Arrestment of Myzus persicae on Physalis floridana L. leaves either infected with Potato leafroll virus or noninfected. The experiment was conducted as a dual-treatment test with both leaves presented simultaneously. Bars within clone having the same letter are not significantly different according to ANOVA and Tukey’s HSD test.
Mentions: In the experiment in which excised, PLRV-infected P. floridana leaves served as the virus source for both clones, the mean number of aphids settled on the treatment leaves or not settled differed significantly in the test with clone OUR (F = 103.24, df = 2, P < 0.0001) and in the test with clone BP23 (F = 73.94, df = 2, P < 0.0001) after 24 h (Figure 3). Tukey’s HSD test revealed that significantly more aphids were settled on the PLRV-infected leaves in the clone OUR test (P < 0.0001) and in the clone BP23 test (P < 0.0001).

Bottom Line: In only two out of 36 tests were there significantly more aphids settled on sachets containing the virus.In an experiment using excised Physalis floridana leaves, twice as many M. persicae settled on virus-infected leaves as on noninfected control leaves.Taken together, the results indicate that arrestment of M. persicae on potato leaf roll virus-infected plants may be due to enhanced nutritional qualities resulting from disease, but not from direct encounter with or detection of the virus.

View Article: PubMed Central - PubMed

Affiliation: Department of Plant, Soil and Entomological Sciences, University of Idaho, Parma, ID 83660-6699, USA. tmowry@uidaho.edu

ABSTRACT
A series of experiments was conducted using membrane sachets containing MP148 diet or phosphate-buffered sucrose with and without purified Potato leafroll virus to determine if direct encounter with the virus would arrest the aphid, Myzus persicae (Sulzer) (Homoptera: Aphididae). In only two out of 36 tests were there significantly more aphids settled on sachets containing the virus. In all other tests, there were either significantly fewer aphids on sachets containing virus or there were no differences between virus treatments and control sachets without virus. In an experiment using excised Physalis floridana leaves, twice as many M. persicae settled on virus-infected leaves as on noninfected control leaves. Taken together, the results indicate that arrestment of M. persicae on potato leaf roll virus-infected plants may be due to enhanced nutritional qualities resulting from disease, but not from direct encounter with or detection of the virus.

Show MeSH
Related in: MedlinePlus