期刊
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
卷 277, 期 1684, 页码 995-1002出版社
ROYAL SOC
DOI: 10.1098/rspb.2009.1857
关键词
Isoptera; neotenic secondary reproductives; primer pheromones; fertility signal; caste regulation; MALDI-TOF
资金
- Grant Agency of the Academy of Sciences of the Czech Republic [A600550614]
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Prague [Z4 055 0506]
In 1959, P. Karlson and M. Luscher introduced the term 'pheromone', broadly used nowadays for various chemicals involved in intraspecific communication. To demonstrate the term, they depicted the situation in termite societies, where king and queen inhibit the reproduction of nest-mates by an unknown chemical substance. Paradoxically, half a century later, neither the source nor the chemical identity of this 'royal' pheromone is known. In this study, we report for the first time the secretion of polar compounds of proteinaceous origin by functional reproductives in three termite species, Prorhinotermes simplex, Reticulitermes santonensis and Kalotermes flavicollis. Aqueous washes of functional reproductives contained sex-specific proteinaceous compounds, virtually absent in non-reproducing stages. Moreover, the presence of these compounds was clearly correlated with the age of reproductives and their reproductive status. We discuss the putative function of these substances in termite caste recognition and regulation.
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