Volatile compound secretion coincides with modifications of the olfactory organ in mantellid frogs

Nowack, Christine; Peram, Pardha Saradhi; Wenzel, Sigrid; Rakotoarison, Andolalao; Glaw, Frank; Poth, Dennis; Schulz, Stefan; Vences, Miguel

doi:10.1111/jzo.12467

Cited by 20 publications

(23 citation statements)

References 33 publications

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“…phoracantholide J ( 4 ),[1,2] gephyromantolide A ( 1 ),[1] mantidactolides ( 5 , 6 ),[3] or other macrolides with even larger rings ( 2 ). [4,5] Further studies have provided evidence that macrolactones can actually be perceived by the olfactory system of mantellids[6] and that these frogs contain species-specific mixtures of volatiles despite occasional large variations within species. [2,6]…”

Section: Introductionmentioning

confidence: 99%

Frogolide – An Unprecedented Sesquiterpene Macrolactone from Scent Glands of African Frogs

et al. 2018

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Some amphibians use chemical signals in addition to optical and acoustical signals to transmit information. Males of mantellid frogs from Madagascar and hyperoliid frogs from Africa emit complex, species- and sex-specific bouquets of volatiles from their femoral or gular glands. We report here on the identification, synthesis, and determination of the absolute configuration of a macrocyclic lactone occurring in several species of both families, ()-3,7,11-dodec-6,10-dien-12-olide (-, frogolide). Macrolides are a preferred compound class of frog volatiles. Nevertheless, frogolide is the first macrocyclic lactone obviously derived from the terpene pathway, in contrast to known frog macrolides that are usually formed via the fatty acid biosynthetic pathway.

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Section: Introductionmentioning

confidence: 99%

Frogolide – An Unprecedented Sesquiterpene Macrolactone from Scent Glands of African Frogs

et al. 2018

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“…The morphology of the olfactory system in adult stages has been studied in great detail in ranids (Døving, Trotier, Rosin, & Holley, ; Gaupp, ; McCotter, ; Tsui, ), in basal anurans (Benzekri & Reiss, ; Stephenson, ; Wagner, ), and in pipids (Dittrich, Kuttler, Hassenklöver, & Manzini, ; Hansen et al, ; Paterson, ; Reiss & Burd, , among others), as well as in surveys across anurans (Helling, ; Jurgens, ). These studies have shown that the general morphology and organization of this system are shared by the majority of anurans, with the exception of the pipids and ascaphids, in which certain morphological peculiarities have been described as related to the aquatic habits of adults (Paterson, ; Reiss & Eisthen, ), and in the recently described deviant anatomy of the mantellid Mantidactylus betsileanus (Junk et al, ; Nowack & Vences, ), where the functional significance appears to relate to perception of femoral gland pheromone secretions (Nowack et al, ). The analysis of the adult morphology of the nose in ceratophryid frogs also reveals a somewhat deviant morphology in adult stages of the aquatic Lepidobatrachus spp.…”

Section: Discussionmentioning

confidence: 99%

The ontogeny of the olfactory system in ceratophryid frogs (Anura, Ceratophryidae)

Quinzio

Reiss

2017

Journal of Morphology

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The aquatic-to-terrestrial shift in the life cycle of most anurans suggests that the differences between the larval and adult morphology of the nose are required for sensory function in two media with different physical characteristics. However, a better controlled test of specialization to medium is to compare adult stages of terrestrial frogs with those that remain fully aquatic as adults. The Ceratophryidae is a monophyletic group of neotropical frogs whose diversification from a common terrestrial ancestor gave rise to both terrestrial (Ceratophrys, Chacophrys) and aquatic (Lepidobatrachus) adults. So, ceratophryids represent an excellent model to analyze the morphology and possible changes related to a secondary aquatic life. We describe the histomorphology of the nose during the ontogeny of the Ceratophryidae, paying particular attention to the condition in adult stages of the recessus olfactorius (a small area of olfactory epithelium that appears to be used for aquatic olfaction) and the eminentia olfactoria (a raised ridge on the floor of the principal cavity correlated with terrestrial olfaction). The species examined (Ceratophrys cranwelli, Chacophrys pierottii, Lepidobatrachus laevis, and L. llanensis) share a common larval olfactory organ composed by the principal cavity, the vomeronasal organ and the lateral appendix. At postmetamorphic stages, ceratophryids present a common morphology of the nose with the principal, middle, and inferior cavities with characteristics similar to other neobatrachians at the end of metamorphosis. However, in advanced adult stages, Lepidobatrachus laevis presents a recessus olfactorius with a heightened (peramorphic) development and a rudimentary (paedomorphic) eminentia olfactoria.Thus, the adult nose in Lepidobatrachus laevis arises from a common developmental€terrestrial €path-way up to postmetamorphic stages, when its ontogeny leads to a distinctive morphology related to the evolutionarily derived, secondarily aquatic life of adults of this lineage. K E Y W O R D Sanurans, Lepidobatrachus, nose, recessus olfactorius, secondary aquatic life | I N TR ODU C TI ONWe examine the larval and adult morphology of the peripheral olfactory system in a clade of South American frogs, a clade that includes genera with terrestrial adults (Ceratophrys and Chacophrys) and with secondarily aquatic adults (Lepidobatrachus). The primary question we ask is whether this major difference in lifestyle is correlated with morphological changes in the peripheral olfactory system, and if so, which?We also seek to determine the overall pattern of olfactory ontogeny in the species of the clade, and how it differs among them.Although direct development has evolved at least ten times independently among the anurans (Heinicke et al., 2009), the majority of anuran species are characterized by a biphasic life cycle. In such life cycles, there are larval and adult phases, distinct in their morphology, physiology, and ecology, and united in ontogeny by the set of cellular and systemic changes t...

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“…Dichloromethane was used as solvent to extract out the skin gland secretion ( Nowack et al, 2017 ). The dissected skin samples (n = 3) were separately kept in dichloromethane for 48 h. Thereafter, the skin was trashed and the dichloromethane was filtered to remove the debris ( Poth et al, 2012 , Poth et al, 2013 ) and injected to GC MS. Gas chromatography/mass spectrometry analysis was done on Agilent Technologies 7890A GC (Germany) with Column db5 MS (30 m 0.25 mm I.D., 0.25 µm), flow rate 1.5 mL/min and helium as carrier gas.…”

Section: Methodsmentioning

confidence: 99%

An insight into the skin glands, dermal scales and secretions of the caecilian amphibian Ichthyophis beddomei

Arun

Sandhya

Akbarsha

et al. 2020

Saudi Journal of Biological Sciences

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Volatile compound secretion coincides with modifications of the olfactory organ in mantellid frogs

Cited by 20 publications

References 33 publications

Frogolide – An Unprecedented Sesquiterpene Macrolactone from Scent Glands of African Frogs

Frogolide – An Unprecedented Sesquiterpene Macrolactone from Scent Glands of African Frogs

The ontogeny of the olfactory system in ceratophryid frogs (Anura, Ceratophryidae)

An insight into the skin glands, dermal scales and secretions of the caecilian amphibian Ichthyophis beddomei

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