@article{fdi:010072451,
  title = {{T}he labral gland in termite soldiers},
  author = {{P}alma-{O}netto, {V}. and {H}oskova, {K}. and {K}rizkova, {B}. and {K}rejcirova, {R}. and {P}flegerova, {J}. and {B}ubenickova, {F}. and {P}larre, {R}. and {D}ahlsjo, {C}. {A}. {L}. and {S}ynek, {J}. and {B}ourguignon, {T}. and {S}illam-{D}uss{\`e}s, {D}avid and {S}obotnik, {J}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he evolutionary success of termites has been driven largely by a complex communication system operated by a rich set of exocrine glands. {A}s many as 20 different exocrine organs are known in termites. {W}hile some of these organs are relatively well known, only anecdotal observations exist for others. {O}ne of the exocrine organs that has received negligible attention so far is the labral gland. {I}n this study, we examined the structure and ultrastructure of the labrum in soldiers of 28 termite species. {W}e confirm that the labral gland is present in all termite species, and comprises two secretory regions located on the ventral side of the labrum and the dorso-apical part of the hypopharynx. {T}he labrum of {N}eoisoptera has a hyaline tip, which was secondarily lost in {N}asutitermitinae, {M}icrocerotermes and species with snapping soldiers. {T}he epithelium of the gland generally consists of class 1 secretory cells, with an addition of class 3 secretory cells in some species. {A} common feature of the secretory cells is the abundance of smooth endoplasmic reticulum, an organelle known to produce lipidic and often volatile secretions. {O}ur observations suggest that the labral gland is involved in communication rather than defence as previously suggested. {O}ur study is the first to provide a comprehensive picture of the structure of the labral gland in soldiers across all termite taxa.},
  keywords = {exocrine gland ; hypopharynx ; labrum ; {T}ermitoidae ; ultrastructure ; {I}soptera},
  booktitle = {},
  journal = {{B}iological {J}ournal of the {L}innean {S}ociety},
  volume = {123},
  numero = {3},
  pages = {535--544},
  ISSN = {0024-4066},
  year = {2018},
  DOI = {10.1093/biolinnean/blx162},
  URL = {https://www.documentation.ird.fr/hor/fdi:010072451},
}