Behavioral and neurophysiological responses of an insect to changing ratios of constituents in host plant-derived volatile mixtures

Abstract

There was an error published in J. Exp. Biol. 213,[3388][3389][3390][3391][3392][3393][3394][3395][3396][3397] In the text of this paper, the proportions of two compounds in the plant-derived volatile mixture tested, i.e. (E)-2-hexenal and benzaldehyde, were inadvertently exchanged.In the second paragraph of the 'Chemicals and mixtures' section on p. 3389, it is stated that the mixture mimicking bioactive peach shoot volatiles was composed of (Z)-3-hexenyl acetate, (Z)-3-hexen-1-ol, (E)-2-hexenal, benzaldehyde and benzonitrile, at ratios of 69.74:14.62:13.24:2.25:0.15 vol./vol., respectively. The proportions of the compounds in the mixture should read: 69.74:14.62:2.25:13.24:0.15 vol./vol.The authors apologize for this error but confirm that the correct proportions of compounds were used throughout the study and therefore results and conclusions remain unaffected.

Season-Long Volatile Emissions from Peach and Pear Trees In Situ, Overlapping Profiles, and Olfactory Attraction of an Oligophagous Fruit Moth in the Laboratory

“…These five compounds were emitted by the attractive peach and pear growth stages at similar relative ratios. Female oriental fruit moths have been shown to tolerate certain modulations of the ratios among the essential constituents in a volatile blend without losing their positive behavioral response (Najar-Rodriguez et al 2010. Thus, our findings suggest that these aldehydes might essentially contribute to the successful peach and pear host location by oriental fruit moth females.…”

“…Water was provided ad libitum. Under these conditions, over 98 % of all females are expected to be mated within 2 d (Najar-Rodriguez et al 2010).…”

“…One way to deal with variations in plant volatile blends is to respond to a specific set of compounds common to all host plants (Rajapakse et al 2006;Leppik and Frérot 2012). Female insects are expected to tolerate a certain modulation of the ratios of these common compounds within distinct threshold values, as recently shown for two tortricid moth species (Cha et al 2010;Najar-Rodriguez et al 2010.…”

Three floral volatiles contribute to differential pollinator attraction in monkeyflowers (Mimulus)

“…How do pollinators discriminate between the different floral species, and which subset of volatiles in the floral bouquet is necessary and sufficient for mediating the differential pollinator visitation? For insects, mixtures of volatiles emitted from flowers are especially critical for eliciting behavior (Miyake and Yafuso, 2003;Riffell et al, 2009a;Riffell et al, 2009b), with specific volatile identities and ratios necessary for perception of the scent (Wright et al, 2005;Piñero et al, 2008;Najar-Rodriguez et al, 2010). Moreover, the individual chemical constituents of the floral bouquet rarely show the same potency as the complete bouquet or a synthetic mixture of a key subset of floral volatiles (Riffell et al, 2009a;Riffell et al, 2009b;Stökl et al, 2010).…”

Comparison of Volatile Blends and Nucleotide Sequences of Two Beauveria Bassiana Isolates of Different Virulence and Repellency Towards the Termite Macrotermes Michealseni

“…Detection of enemy-specific signals such as volatile chemicals at a distance and avoidance of an enemy is a key part of the defensive behavior of many insect orders, including isoptera (Gripenberg, et al, 2010;Najar-Rodriguez et al, 2010;Rohlfs and Churchill, 2011;Turcotte et al, 2012). Several authors have recognized that pathogenic fungal isolates can be repellent to termites, which may affect their effective deployment as mycoinsecticides (Milner, 2000;Cheragi et al, 2012;Chouvenc and Su, 2012).…”