土菖菖树叶蜡:对昆虫胎生中若虫产卵的短程引诱剂和刺激剂

IF 1.6 3区 环境科学与生态学 Q4 BIOCHEMISTRY & MOLECULAR BIOLOGY
Paroma Mitra, Swati Das, Anandamay Barik
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引用次数: 17

摘要

菖蒲是亚洲、欧洲和非洲重要的脉脉作物。蚜虫(半翅目:蚜虫科)的侵害导致植物生长迟缓,减少种子产量。雌性在L. sativus的叶子和花上产卵。因此,研究两个品种(biol212 Ratan (BIO)和Nirmal B-1 (NIR))叶蜡化合物(长链烷烃和游离脂肪酸)对蚜虫产卵的短程引诱和刺激作用具有重要意义。通过薄层色谱(TLC)、气相色谱-质谱(GC-MS)和气相色谱- fid分析,发现两个品种叶片正己烷提取物中含有18种正构烷烃(n-C15 ~ n-C36)和14种游离脂肪酸(C12:0 ~ C22:0)。正构烷烃中以正戊烷为主。棕榈油酸和五酸分别是BIO和NIR叶蜡中主要的游离脂肪酸。用y管嗅探法测定,两种品种的雌蜂均被叶蜡所吸引,而对照溶剂为正己烷。在一片等效的BIO蜡中含有数量相近的十五烷、三烷酸和亚油酸的合成混合物,或在一片等效的NIR蜡中含有数量相近的十五烷、十二烷、五烷、七烷、三康烷和亚油酸的合成混合物,作为短程引诱剂,刺激雌性产卵。但后一种杂交比前一种杂交更具吸引力,能刺激雌虫产卵更多,因此,后一种杂交可用于害虫防治策略中诱饵陷阱的开发。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Leaf waxes from Lathyrus sativus: short-range attractant and stimulant for nymph laying in a viviparous insect

Leaf waxes from Lathyrus sativus: short-range attractant and stimulant for nymph laying in a viviparous insect

Lathyrus sativus L. (Fabaceae) is an important pulse crop of Asia, Europe, and Africa. Infestation by the aphid, Aphis craccivora Koch (Hemiptera: Aphididae) causes stunted growth of plants and reduces seed production. Females lay nymphs on the leaves and flowers of L. sativus. Hence, it is relevant to study the importance of leaf wax compounds (long-chain alkanes and free fatty acids) from two cultivars [BIO L 212 Ratan (BIO) and Nirmal B-1 (NIR)] of L. sativus as short-range attractant and stimulant for nymph laying in the aphid. The TLC, GC-MS and GC-FID analyses of n-hexane extracts from leaves of two cultivars revealed 18 n-alkanes from n-C15 to n-C36 and 14 free fatty acids from C12:0 to C22:0. Pentadecane was predominant among n-alkanes in both cultivars. Palmitoleic acid and pentadecanoic acid were predominant free fatty acids in leaf waxes of BIO and NIR, respectively. Females were attracted towards leaf waxes of both cultivars compared to the control solvent (n-hexane) in Y-tube olfactometer bioassays. A synthetic blend of either pentadecane, tridecanoic acid, and linoleic acid at similar amounts present in one leaf equivalent wax of BIO, or pentadecane, docosane, pentacosane, heptacosane, tritriacontane, and linoleic acid at similar amounts present in one leaf equivalent wax of NIR acted as short-range attractant and stimulated females to lay nymphs. But, the latter blend was more attractive and stimulated females to lay more nymphs than the former blend, and hence, this latter blend could be employed in the development of baited traps in pest management strategies.

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来源期刊
Chemoecology
Chemoecology 环境科学-生化与分子生物学
CiteScore
4.20
自引率
0.00%
发文量
11
审稿时长
>36 weeks
期刊介绍: It is the aim of Chemoecology to promote and stimulate basic science in the field of chemical ecology by publishing research papers that integrate evolution and/or ecology and chemistry in an attempt to increase our understanding of the biological significance of natural products. Its scopes cover the evolutionary biology, mechanisms and chemistry of biotic interactions and the evolution and synthesis of the underlying natural products. Manuscripts on the evolution and ecology of trophic relationships, intra- and interspecific communication, competition, and other kinds of chemical communication in all types of organismic interactions will be considered suitable for publication. Ecological studies of trophic interactions will be considered also if they are based on the information of the transmission of natural products (e.g. fatty acids) through the food-chain. Chemoecology further publishes papers that relate to the evolution and ecology of interactions mediated by non-volatile compounds (e.g. adhesive secretions). Mechanistic approaches may include the identification, biosynthesis and metabolism of substances that carry information and the elucidation of receptor- and transduction systems using physiological, biochemical and molecular techniques. Papers describing the structure and functional morphology of organs involved in chemical communication will also be considered.
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