Analysis of Leaf Volatiles of Crabapple (Malus sp.) Individuals in Different Aphids’ Resistance

Rong Wang, Xiang Shen, Chao Wang, Rui Ge, Zhen Zhang, Xiaojing Guo

College of Horticulture Science and Engineering, Shandong Agricultural University/State Key Laboratory for Crop Biology Tai’an 271018, Shandong, China.

DOI: 10.4236/ajps.2014.521344                

Abstract

The aim of this experiment was to analyze the leaf volatiles of crabapple (Malus sp.) individuals at different aphid’s resistance, to ascertain the particular ingredients which has lure or aversion effects on aphid, and to provide reference for finding out a simple method to control effectively aphids. Volatiles of leaves from twenty-one different crabapple individuals were evaluated with the method of head space-solid phase micro-extraction and gas chromatography-mass spectrometry (HS-SPME-GC-MS). Volatiles profiles of them were then compared. There are one hundred eighty-six kinds of volatiles were detected with varied contents found in different individuals. And all plants contain eight kinds of common components: 3-Hexen-1-ol, acetate, (Z)-, 4-Hexen-1-ol, (Z)-, n-Decanal, n-Tetradecane, .alpha.-Farnesene, Diethyl Phthalate, Oxime-, methoxy-phenyl- and Dibenzofuran-, wherein the relative content of higher have 3-Hexen-1-ol, acetate, (Z)- and 4-Hexen-1-ol, (Z)-. Specific volatile substances in high resistance plants contain 3-Hexenal, (Z)- and 2-Hexenal, (E)-. Leaf volatiles differ in twenty-one crabapple individuals. High resistance plants specific volatile substances contains 3-Hexenal, (Z)-, 2-Hexenal, (E)- and other small molecular volatile substances, and no-resistance plants all have .beta.-Farnesene.

Keywords

Crabapple (Malus sp.), Volatiles (VOCs), Aphids

Conflicts of Interest

The authors declare no conflicts of interest.

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