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Plant-feeding and non-plant feeding phytoseiids: Differences in behavior and cheliceral morphology
Year:
2012
Source of publication :
Experimental and Applied Acarology
Authors :
Doron, Noam
;
.
Palevsky, Eric
;
.
Volume :
58
Co-Authors:
Adar, E., Department of Entomology, Newe-Ya'ar Research Center, Agricultural Research Organization (ARO), Bet-Dagan, Israel, Department of Evolutionary and Environmental Biology, University of Haifa, Haifa, Israel
Inbar, M., Department of Evolutionary and Environmental Biology, University of Haifa, Haifa, Israel
Gal, S., Department of Entomology, Newe-Ya'ar Research Center, Agricultural Research Organization (ARO), Bet-Dagan, Israel
Doron, N., Department of Entomology, Newe-Ya'ar Research Center, Agricultural Research Organization (ARO), Bet-Dagan, Israel
Zhang, Z.-Q., Landcare Research, 231 Morrin Road, Auckland, New Zealand
Palevsky, E., Department of Entomology, Newe-Ya'ar Research Center, Agricultural Research Organization (ARO), Bet-Dagan, Israel
Facilitators :
From page:
341
To page:
357
(
Total pages:
17
)
Abstract:
In previous studies plant feeding behavior of plant- and non-plant feeding phytoseiids was never examined directly. Moreover, in these studies the cheliceral morphology of phytoseiids was not associated with their ability to feed on plants. In the present study, we monitored the plant-feeding behavior of Euseius scutalis and Amblyseius swirskii. Only E. scutalis was observed penetrating the leaf surface with the movable digit and feeding. Second, using a dye and coloring the gut as an indicator for feeding, we found that E. scutalis pierced an artificial membrane and fed whereas A. swirskii did not. Finally, to identify morphological characteristics typical of plant feeders versus non-plant feeders, we used scanning electron microscopy to examine the adaxial (inner) profile of the chelicerae in 13 phytoseiid species. The only parameter that distinguished between plant- and non-plant feeders was the ratio of the dorsal perimeter length of the fixed digit to the ventral perimeter length of the movable digit. Plant-feeders were characterized by ratio values greater than one whereas the values for non plant-feeders were lower than one. We suggest that a shorter and less curved movable digit, expressed by a high ratio, will facilitate the penetration of the leaf surface. Cheliceral traits proposed here as typical of plant feeders, were observed for five genera, indicating that plant-feeding may be more common in the Phytoseiidae than previously reported. We propose that the ability to feed on plants be added as a cross type trait of phytoseiid life-style types. © 2012 Springer Science+Business Media B.V.
Note:
Related Files :
Acari
Animal
Animals
herbivory
interspecific variation
life history trait
plant
Plants
ultrastructure
Show More
Related Content
More details
DOI :
10.1007/s10493-012-9589-y
Article number:
0
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
31226
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 01:00
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Scientific Publication
Plant-feeding and non-plant feeding phytoseiids: Differences in behavior and cheliceral morphology
58
Adar, E., Department of Entomology, Newe-Ya'ar Research Center, Agricultural Research Organization (ARO), Bet-Dagan, Israel, Department of Evolutionary and Environmental Biology, University of Haifa, Haifa, Israel
Inbar, M., Department of Evolutionary and Environmental Biology, University of Haifa, Haifa, Israel
Gal, S., Department of Entomology, Newe-Ya'ar Research Center, Agricultural Research Organization (ARO), Bet-Dagan, Israel
Doron, N., Department of Entomology, Newe-Ya'ar Research Center, Agricultural Research Organization (ARO), Bet-Dagan, Israel
Zhang, Z.-Q., Landcare Research, 231 Morrin Road, Auckland, New Zealand
Palevsky, E., Department of Entomology, Newe-Ya'ar Research Center, Agricultural Research Organization (ARO), Bet-Dagan, Israel
Plant-feeding and non-plant feeding phytoseiids: Differences in behavior and cheliceral morphology
In previous studies plant feeding behavior of plant- and non-plant feeding phytoseiids was never examined directly. Moreover, in these studies the cheliceral morphology of phytoseiids was not associated with their ability to feed on plants. In the present study, we monitored the plant-feeding behavior of Euseius scutalis and Amblyseius swirskii. Only E. scutalis was observed penetrating the leaf surface with the movable digit and feeding. Second, using a dye and coloring the gut as an indicator for feeding, we found that E. scutalis pierced an artificial membrane and fed whereas A. swirskii did not. Finally, to identify morphological characteristics typical of plant feeders versus non-plant feeders, we used scanning electron microscopy to examine the adaxial (inner) profile of the chelicerae in 13 phytoseiid species. The only parameter that distinguished between plant- and non-plant feeders was the ratio of the dorsal perimeter length of the fixed digit to the ventral perimeter length of the movable digit. Plant-feeders were characterized by ratio values greater than one whereas the values for non plant-feeders were lower than one. We suggest that a shorter and less curved movable digit, expressed by a high ratio, will facilitate the penetration of the leaf surface. Cheliceral traits proposed here as typical of plant feeders, were observed for five genera, indicating that plant-feeding may be more common in the Phytoseiidae than previously reported. We propose that the ability to feed on plants be added as a cross type trait of phytoseiid life-style types. © 2012 Springer Science+Business Media B.V.
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