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Exp Appl Acarol

Title:		Spider mites adaptively learn recognizing mycorrhiza-induced changes in host plant volatiles
Author(s):		Patino-Ruiz JD; Schausberger P;
Address:		"Group of Arthropod Ecology and Behavior, Division of Plant Protection, Department of Crop Sciences, University of Natural Resources and Life Sciences, Peter Jordanstrasse 82, 1190, Vienna, Austria"
Journal Title:		Exp Appl Acarol
Year:		2014
Volume:		20140806
Issue:		4
Page Number:		455 - 463
DOI:		10.1007/s10493-014-9845-4
ISSN/ISBN:		1572-9702 (Electronic) 0168-8162 (Linking)
Abstract:		"Symbiotic root micro-organisms such as arbuscular mycorrhizal fungi commonly change morphological, physiological and biochemical traits of their host plants and may thus influence the interaction of aboveground plant parts with herbivores and their natural enemies. While quite a few studies tested the effects of mycorrhiza on life history traits, such as growth, development and reproduction, of aboveground herbivores, information on possible effects of mycorrhiza on host plant choice of herbivores via constitutive and/or induced plant volatiles is lacking. Here we assessed whether symbiosis of the mycorrhizal fungus Glomus mosseae with common bean plants Phaseolus vulgaris influences the response of the two-spotted spider mite Tetranychus urticae to volatiles of plants that were clean or infested with spider mites. Mycorrhiza-naive and -experienced spider mites, reared on mycorrhizal or non-mycorrhizal bean plants for several days before the experiments, were subjected to Y-tube olfactometer choice tests. Experienced but not naive spider mites distinguished between constitutive volatiles of clean non-mycorrhizal and mycorrhizal plants, preferring the latter. Neither naive nor experienced spider mites distinguished between spider mite-induced volatiles of mycorrhizal and non-mycorrhizal plants. Learning the odor of clean mycorrhizal plants, resulting in a subsequent preference for these odors, is adaptive because mycorrhizal plants are more favorable host plants for fitness of the spider mites than are non-mycorrhizal plants"
Keywords:		Animals Choice Behavior Female Linear Models Mycorrhizae/*physiology Olfactometry Phaseolus/chemistry/*parasitology Symbiosis/physiology Tetranychidae/*physiology Volatile Organic Compounds;
Notes:		"MedlinePatino-Ruiz, J David Schausberger, Peter eng Research Support, Non-U.S. Gov't Netherlands 2014/08/07 Exp Appl Acarol. 2014 Dec; 64(4):455-63. doi: 10.1007/s10493-014-9845-4. Epub 2014 Aug 6"