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Molecules

Title:		Characterization of Volatile Organic Compounds of Healthy and Huanglongbing-Infected Navel Orange and Pomelo Leaves by HS-GC-IMS
Author(s):		Cao S; Sun J; Yuan X; Deng W; Zhong B; Chun J;
Address:		"National Navel Orange Engineering Research Center, College of Life Sciences, Gannan Normal University, Ganzhou 341000, China"
Journal Title:		Molecules
Year:		2020
Volume:		20200909
Issue:		18
Page Number:		-
DOI:		10.3390/molecules25184119
ISSN/ISBN:		1420-3049 (Electronic) 1420-3049 (Linking)
Abstract:		"The Asian citrus psyllid (ACP), Diaphorina citri Kuwayama, is the only natural vector of bacteria responsible for Huanglongbing (HLB), a worldwide destructive disease of citrus. ACP reproduces and develops only on the young leaves of its rutaceous host plants. Olfactory stimuli emitted by young leaves may play an important role in ACP control and HLB detection. In this study, volatile organic compounds (VOCs) from healthy and HLB-infected young leaves of navel orange and pomelo were analyzed by headspace-gas chromatography-ion mobility spectrometry (HS-GC-IMS). A total of 36 compounds (including dimers or polymers) were identified and quantified from orange and 10 from pomelo leaves. Some compounds showed significant differences in signal intensity between healthy and HLB-infected leaves and may constitute possible indicators for HLB infection. Principal component analysis (PCA) clearly discriminated healthy and HLB-infected leaves in both orange and pomelo. HS-GC-IMS was an effective method to identify VOCs from leaves. This study may help develop new methods for detection of HLB or find new attractants or repellents of ACP for prevention of HLB"
Keywords:		"Animals Bacteria Chromatography, Gas Citrus/*chemistry/classification Fruit Hemiptera Ion Mobility Spectrometry Plant Diseases/*microbiology Plant Leaves/*chemistry Principal Component Analysis Software Volatile Organic Compounds/*analysis Hs-gc-ims Huang;"
Notes:		"MedlineCao, Shan Sun, Jingyu Yuan, Xiaoyong Deng, Weihui Zhong, Balian Chun, Jiong eng 31960549/National Natural Science Foundation of China/ KJLD14079/Foundation of Jiangxi Province Educational Committee/ 20181BBF60030/Natural Science Foundation of Jiangxi Province/ Switzerland 2020/09/13 Molecules. 2020 Sep 9; 25(18):4119. doi: 10.3390/molecules25184119"