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A Plasma Membrane Protein from Zea mays Binds with the Herbivore Elicitor Volicitin

“…Insect wounding also induces the emission of volatile terpenes in a wide range of plant taxa (Paré and Tumlinson, 1999), including Z. mays, and studies have implicated a role for JA in triggering plant VOC emissions. Indeed the exogenous application of JA to intact (Schmelz et al, 2001) or excised plants (Dicke et al, 1999) triggers elevated VOC emissions. In some cases, endogenous increases of JA with insect damage either parallel or precede VOC emissions.…”

Novel S-adenosyl-l-methionine:salicylic acid carboxyl methyltransferase, an enzyme responsible for biosynthesis of methyl salicylate and methyl benzoate, is not involved in floral scent production in snapdragon flowers

“…It is also released from leaves of some plant species in response to herbivore damage [23][24][25][26]. Since exogenously applied salicylic acid induces the same set of genes that are activated systemically upon TMV infection [27], and jasmonic acid activates the natural defense response of plants and also induces the same chemicals that are associated with herbivore damage [23,[28][29][30], we used salicylic and jasmonic acids to test if these compounds induce the SAMT gene in snapdragon. Plants were sprayed with jasmonic or salicylic acids once per day for two consecutive days; total RNA was isolated from petal tissue as well as from leaves 24 and 48 h after the last treatment and analyzed by RT-PCR.…”

Visual, vibratory, and olfactory cues affect interactions between the red spider mite Tetranychus evansi and its predator Phytoseiulus longipes

“…Semiochemical-mediating prey/predator interactions have been investigated previously in several tritrophic interactions such as predator/herbivore/plant and parasitoid/herbivore/plant interactions (Agelopoulos and Keller 1994;Blaakmeer et al 1994;Turlings et al 1995;Dicke et al 1998Dicke et al , 1999Du et al 1998;Shiojiri et al 2001). In spider mite/predator interactions, previous studies have identified predator attractants as volatile blends emitted from spider mite-infested plants.…”