Chemistry and applications of mealybug sex pheromones
Chemistry and applications of mealybug sex pheromones
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粉蚧性信息素的化学及应用
DOI：
10.1021/bk-2005-0906.ch002
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发表时间：
2005
期刊：
影响因子：
--
通讯作者：
W. Bentley
中科院分区：
文献类型：
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作者：
J. Millar;K. Daane;J. Mcelfresh;J. Moreira;W. Bentley
藤蔓粉蚧的性信息素(S)-lavandulyl senecioate 2a是一种单一成分。雄虫对(S)-2a和外消旋2a的吸引力相同，这表明非天然对映体不会抑制雄虫的行为反应。雌性粉蚧也产生(S)-lavandulol 1，但外消旋体1与外消旋体2a的混合物对雄性粉蚧的吸引力不如单独外消旋体2a。在田间试验中，用100 μg剂量的外消旋2a诱捕雄鼠至少12周。从更广泛的角度，讨论了四种粉蚧和五种相关蚧虫的信息素化学和生物学方面的问题。所有的信息素都是萜类酯，除了一种外，所有的信息素都以异戊二烯单位之间不寻常的连接为特征。此外，每个物种产生独特的结构，以至于没有两个物种甚至产生相同基本骨架的立体异构形式。这些昆虫的生物学方面也讨论了它们的信息素在监测昆虫种群中的实际应用，以及基于信息素的控制策略。
The sex pheromone of the vine mealybug Planococcus ficus has been identified as a single component, (S)-lavandulyl senecioate 2a. Males were equally attracted to either (S)-2a or racemic 2a, indicating that the unnatural enantiomer does not inhibit male behavioral responses. Female mealybugs also produced (S)-lavandulol 1, but mixtures of racemic 1 with racemic 2a were less attractive to male mealybugs than racemic 2a alone. In field trials, lures loaded with 100 μg doses of racemic 2a attracted males for at least 12 wk. From a broader perspective, aspects of the pheromone chemistry and biology of four mealybug and five related scale insect species are discussed. The pheromones are all terpenoid esters, and all but one are characterized by an unusual linkage between isoprene units. In addition, each species produces unique structures, to the extent that no two species even produce stereoisomeric forms of the same basic skeleton. Aspects of the biology of these insects also are discussed in relation to practical applications of their pheromones for monitoring insect populations, and for pheromone-based control strategies.