Explosive Backpacks in Old Termite Workers

  title={Explosive Backpacks in Old Termite Workers},
  author={Jan {\vS}obotn{\'i}k and Thomas Bourguignon and R Hanus and Zuzana Demianov{\'a} and Jana Pytelkov{\'a} and Monica Mareş and Pavla Foltynova and Jan Preisler and Josef Cva{\vc}ka and Jana Krasulov{\'a} and Yves Roisin},
  pages={436 - 436}
As Neocapritermes taracua termites age, they develop a suicidal toxic apparatus that bursts during aggressive encounters. By nature, defensive behavior is risky. In social insects, such behavior is more likely to occur in individuals whose potential for other tasks is diminished. We show that workers of the termite Neocapritermes taracua develop an exceptional two-component suicidal apparatus consisting of copper-containing protein crystals, stored in external pouches, and internal salivary… 
Molecular Mechanism of the Two-Component Suicidal Weapon of Neocapritermes taracua Old Workers.
This work identifies both components of this activated defense system and describes the molecular basis responsible for the toxicity of N. taracua worker autothysis, a sticky and toxic cocktail harmful to opponents.
Worker Defensive Behavior Associated with Toxins in the Neotropical Termite Neocapritermes braziliensis (Blattaria, Isoptera, Termitidae, Termitinae)
The morphology, mechanisms of action, and proteomics of the salivary weapon in workers of this species, which due to the autothysis of theSalivary glands causes their body rupture, in turn releasing a defensive secretion, observed during aggressiveness bioassays, are described.
Involvement of the Salivary Glands in the Suicidal Defensive Behavior of Workers in Neocapritermes opacus (Blattaria, Isoptera, Termitidae)
The suicidal mechanism in workers of the Neotropical termite Neocapritermes opacus, which involves salivary gland autothysis followed by body cuticle rupture and the release of a defensive secretion, was investigated.
Age-dependent changes in ultrastructure of the defensive glands of Neocapritermes taracua workers (Isoptera, Termitidae).
The defensive device of N. taracua is truly exceptional as it involves a new gland and a previously undescribed function for parietal cells, being a remarkable example of evolution of morphological innovation.
Ecology of Termites
Termites show a structured social life, provisioned with work-based divisions, i.e., king, queen, workers, and soldiers. Ecologically, termites interact with living and nonliving surroundings and
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The results highlight the dual role of labial gland secretion, i.e. the defensive role in soldiers and workers of several termite species, and the digestive function in workers.
The labral gland in termite soldiers
This study is the first to provide a comprehensive picture of the structure of the labral gland in soldiers across all Termite taxa, and suggests that thelabral gland is involved in communication rather than defence as previously suggested.
Soldiers of the termite Nasutitermes corniger (Termitidae: Nasutitermitinae) increase the ability to exploit food resources
The role of soldiers in N. corniger increases the efficiency of termite groups in the exploration and exploitation of food resources and promotes a faster exploitation of the environment that allows them to encounter more food sources simultaneously.
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The data suggest that the ancestral form of the frontal gland is epithelial with reservoir, as found in Rhinotermitaceae, Serritermitidae, and basal Termitidae.
Dehiscent organs used for defensive behavior of kamikaze termites of the genus Ruptitermes (Termitidae, Apicotermitinae) are not glands.
The results showed that the dehiscent organs do not exhibit the typical characteristics of the exocrine glandular cells class I, II or III of insects, suggesting that they constitute a new type of defensive organ, which seems to be a specialized fat body that is peculiar and exclusive of Ruptitermes termites.


Structure and function of defensive glands in soldiers of Glossotermes oculatus (Isoptera: Serritermitidae)
The structure and function of defensive glands in Glossotermes oculatus soldiers aiming to understand their use in combat are investigated and it is hypothesized that this self-sacrifice is an efficient way of blocking a gallery under attack.
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This text aims to fill the gap of the past 25 years and overview all of the relevant primary sources about the chemistry of termite defense along with related biological aspects, such as the anatomy of defensive glands and their functional mechanisms, alarm communication, and the evolutionary significance of these defensive elements.
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An overview of the self-destructive defense mechanisms that eusocial insects have evolved is provided and avenues for future research into this form of altruism are discussed.
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Feeding ecology and phylogenetic structure of a complex neotropical termite assemblage, revealed by nitrogen stable isotope ratios
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Cleavage of Structural Proteins during the Assembly of the Head of Bacteriophage T4
Using an improved method of gel electrophoresis, many hitherto unknown proteins have been found in bacteriophage T4 and some of these have been identified with specific gene products. Four major
Off-line coupling of capillary electrophoresis to substrate-assisted laser desorption inductively coupled plasma mass spectrometry.
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