Chemical Identification and Ethological Function of Soldier-Specific Secretion in Japanese Subterranean Termite<i>Reticulitermes speratus</i>(Rhinotermitidae)

Nguyen, Tuan; Kanaori, Kenji; Hojo, Masaru; Kawada, T.; Yamaoka, Ryohei; Akino, Toshiharu

doi:10.1271/bbb.110372

Cited by 9 publications

(5 citation statements)

References 37 publications

(46 reference statements)

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“…This study confirmed β-selinene not only in Rss [10] but also in Rsk, Rk, and Ro. This suggests that β-selinene would be a characteristic terpenoid compound in the Japanese Reticulitermes species, and it might be a key component to discriminate the Japanese Reticulitermes species from the European and American Reticulitermes.…”

Section: Resultssupporting

confidence: 80%

Soldier - S pecific Terpenoid Compounds of t he Japanese Reticulitermes (Isoptera, Rhinotermitidae)

2014

Can Chem Trans

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Terpenoid secretions specific to termite soldiers were analyzed in Reticulitermes speratus speratus (Rss), R. speratus kyushuensis (Rsk), R. kanmonensis (Rk) and R. okinawanus (Ro), and 3 quantitatively major compounds were successfully identified. All these species possessed β-selinene whose content was high in soldiers of Rss and Rsk. While δ-cadinene was detected only in Ro, (S)-(+)-(E,E)-geranyllinalool was first detected in the other species. Both soldiers of Rk and Rsk contained a large amount of this compound. Except for Ro, the soldier-specific terpenoids were identical among Rss, Rsk and Rk.

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Section: Resultssupporting

confidence: 80%

Soldier - S pecific Terpenoid Compounds of t he Japanese Reticulitermes (Isoptera, Rhinotermitidae)

2014

Can Chem Trans

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“…In intermediate termites, defensive secretions are released from the frontal gland and combined with mechanical defense-mandibular opening and biting. Soldiers, and often also the workers, are attracted by the volatiles from the soldier frontal gland and perform a series of alarm behaviors Nguyen et al 2011). In Reticulitermes grassei, the alarm reaction is elicited by the sesquiterpene hydrocarbon γ-cadinene, in R. banyulensis by the diterpene alcohol geranyllinalool, in R. flavipes by the monoterpene hydrocarbons α-pinene, β-pinene and limonene, and diterpene alcohols geranyllinalool and geranylgeraniol, and finally in R. lucifugus by the sesquiterpene hydrocarbons germacrene A, germacrene C, β-selinene, γ-selinene, γ-cadinene and the diterpene alcohol geranyllinalool .…”

Section: Communication In Defense and Alarm Behaviormentioning

confidence: 99%

Communication and Social Regulation in Termites

Bagnères

Hanus

2015

Social Recognition in Invertebrates

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Communication and social regulation are among the distinguishing features of termites: they are part of all basic aspects of termite biology, from ontogeny and caste differentiation to social behavior and cooperation. As in other highly social taxa, communication in termites predominantly relies on a complex network of chemical signals, which are complemented by vibration-based signals. In contrast to other social taxa, the role of visual cues is negligible. In this chapter, we review the recent literature on the different components that make up termite communication and social regulation systems by tracing termite evolution and examining the role played by different factors, such as sex and caste, and different behaviors, such as those related to defense, nestmate recognition, egg and brood care, foraging, and nest building, among others. The main characteristics of termites are compared to those of other social insects in the introduction. In the first section, we review the most important researches on termite communication and social regulation that are related to social activities in the basal phylogenetic lineages, and in the Termitidae (higher termites), the most advanced and diversified family. The abundant literature on the best studied genera, Reticulitermes, Coptotermes, and Heterotermes, which are considered for the purposes of this chapter to be intermediate termites, is reviewed and discussed separately in the second section. By using this approach, we seek to describe communication and social regulation systems in basal and primitive termites and illustrate how they have evolved to become more complex in intermediate and higher termites.

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“…However, these candidate pheromone substances were not detected from some populations of the focal species, suggesting that the synthesis of these substances depends on populations and/or seasons (Perdereau et al, 2010). In addition to these, β-selinene was identified as a major compound in the soldier head extracts in R. speratus acting as an aggregation pheromone for colony members (Nguyen et al, 2011). They suggested that this substance might be involved in the inhibition of soldier differentiation from workers because the interactions among colony members might be accelerated by aggregation.…”

Section: Primer Pheromones Mediating Social Interactionsmentioning

confidence: 99%

Social interactions affecting caste development through physiological actions in termites

et al. 2014

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A colony of social insects is not only an aggregation of individuals but also a functional unit. To achieve adaptive social behavior in fluctuating environmental conditions, in addition to coordination of physiological status in each individual, the whole colony is coordinated by interactions among colony members. The study on the regulation of social-insect colonies is termed “social physiology.” Termites, a major group of social insects, exhibit many interesting phenomena related to social physiology, such as mechanisms of caste regulation in a colony. In their colonies, there are different types of individuals, i.e., castes, which show distinctive phenotypes specialized in specific colony tasks. Termite castes comprise reproductives, soldiers and workers, and the caste composition can be altered depending on circumstances. For the regulation of caste compositions, interactions among individuals, i.e., social interactions, are thought to be important. In this article, we review previous studies on the adaptive meanings and those on the proximate mechanisms of the caste regulation in termites, and try to understand those comprehensively in terms of social physiology. Firstly, we summarize classical studies on the social interactions. Secondly, previous studies on the pheromone substances that mediate the caste regulatory mechanisms are overviewed. Then, we discuss the roles of a physiological factor, juvenile hormone (JH) in the regulation of caste differentiation. Finally, we introduce the achievements of molecular studies on the animal sociality (i.e., sociogenomics) in terms of social physiology. By comparing the proximate mechanisms of social physiology in termites with those in hymenopterans, we try to get insights into the general principles of social physiology in social animals.

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Chemical Identification and Ethological Function of Soldier-Specific Secretion in Japanese Subterranean TermiteReticulitermes speratus(Rhinotermitidae)

Cited by 9 publications

References 37 publications

Soldier - S pecific Terpenoid Compounds of t he Japanese Reticulitermes (Isoptera, Rhinotermitidae)

Soldier - S pecific Terpenoid Compounds of t he Japanese Reticulitermes (Isoptera, Rhinotermitidae)

Communication and Social Regulation in Termites

Social interactions affecting caste development through physiological actions in termites

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