The biochemical correlation between the epicuticular wax of upland cotton (Gossypium hirsutum L.) and the wax of different mealybug species
The biochemical correlation between the epicuticular wax of upland cotton (Gossypium hirsutum L.) and the wax of different mealybug species
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DOI：
10.1007/s12600-018-0656-8
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发表时间：
2018-04-01
期刊：
影响因子：
1.4
通讯作者：
Prakash, Arkalgud Hiriyannaiah
中科院分区：
文献类型：
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作者：
Arunkumar, Nagarathinam;Banu, Jainullabudeen Gulsar;Prakash, Arkalgud Hiriyannaiah
本研究的目的是通过先进的分析研究，找出棉花和粉蚧昆虫表皮蜡之间可能存在的差异。对高地棉叶蜡的生化组成进行了研究。采用气相色谱-质谱联用技术（GC-MS）对不同种类粉蚧（Phenacoccus solenopsis Tinsley、Ferrisia virgata Cockerell、Paracoccus marginatus威廉姆斯和Granara de Willink）和芒果履蚧（Drosicha mangiferae绿色）的表皮蜡进行了详细分析。结果表明，棉蜡中主要是六碳烷烃，而粉蚧蜡中是五碳烷烃和六碳烷烃的混合物。除此之外，还鉴定了常见的十六烷、二十烷和二十一烷，不常见的乙烷、环丁酮、癸烷和环十二烷，以及粉蚧特有的肉豆蔻醇、喹啉、二十六烷和二十五烷，并详细列出了它们的保留时间。本研究的结果将有助于开发针对粉蚧蜡质角质层的害虫管理技术，而不妨碍棉花作物的正常生理和生长。
The study aimed to find the possible differences, existing between the cuticular waxes of cotton and mealybug insects, using advanced analytical studies. The biochemical composition of the leaf wax of upland cotton (Gossypium hirsutum L.) and the cuticular wax of the different mealybug species, including Phenacoccus solenopsis Tinsley, Ferrisia virgata Cockerell, Paracoccus marginatus Williams and Granara de Willink, and Drosicha mangiferae Green were analyzed in detail by Gas Chromatography-Mass Spectrometry (GC-MS). The results clearly confirmed that the cotton wax is dominated by the six-carbon alkanes, while the mealybug wax is a mixture of both the five-carbon alkanes and the six-carbon alkanes. Apart from these differences, the common hydrocarbons such as hexadecane, icosane, and heneicosane, the uncommon hydrocarbons such as ethane, cyclobutanone, decane, and cyclododecane, the species-specific compounds of mealybugs such as myristyl alcohol, quinoline, hexacosane, and pentacosane were also identified and their retention times (RT) were listed out in detail. The outcome of this study will be useful to develop pest management techniques targeting the waxy cuticle of mealybugs without obstructing the normal physiology and growth of the cotton crop.