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Olfactory sensitivity for six amino acids: a copmarative study in CD-1 mice and spider monkeys
Linköping University, Department of Physics, Chemistry and Biology, Biology. Linköping University, The Institute of Technology.
Linköping University, Department of Physics, Chemistry and Biology, Biology. Linköping University, The Institute of Technology.
Instituto de Neuro-Etologia, Universidad Veracruzana, Xalapa, Veracruz, Mexico.
Linköping University, Department of Physics, Chemistry and Biology, Zoology. Linköping University, The Institute of Technology.ORCID iD: 0000-0001-5583-2697
2012 (English)In: Amino Acids, ISSN 0939-4451, E-ISSN 1438-2199, Vol. 42, no 4, 1475-1485 p.Article in journal (Refereed) Published
Abstract [en]

Using a conditioning paradigm, the olfactorysensitivity of five CD-1 mice for the L- and D-forms ofcysteine, methionine, and proline was investigated. With allsix stimuli, the animals discriminated concentrationsB0.1 ppm (parts per million) from the odorless solvent, andwith three of the six stimuli the best-scoring animals wereeven able to detect concentrations\0.1 ppb (parts per billion).Three spider monkeys tested in parallel were found todetect the same six stimuli at concentrations\1 ppm, andwith four of the six stimuli the best-scoring animalsdetected concentrations B1 ppb. Both CD-1 mice and spidermonkeys displayed a higher olfactory sensitivity withthe L- and D-forms of cysteine and methionine than with theprolines, suggesting an important role of the sulfur-containingfunctional groups for detectability. Accordingly, theacross-odorant patterns of detection thresholds obtainedwith mice and spider monkeys showed a significant positivecorrelation. A comparison of the detection thresholdsbetween the two species tested here and those obtained inhuman subjects suggests that neither the number of functionalolfactory receptor genes nor the absolute or the relativesize of the olfactory bulbs reliably predicts a species’olfactory sensitivity for amino acids.

Place, publisher, year, edition, pages
Springer, 2012. Vol. 42, no 4, 1475-1485 p.
Keyword [en]
Olfactory detecion thresholds, Cysteine, Methionine, Proline
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:liu:diva-75575DOI: 10.1007/s00726-011-0951-xISI: 000301181400039OAI: oai:DiVA.org:liu-75575DiVA: diva2:508347
Note
funding agencies|Consejo Nacional de Ciencia y Tecnologia (CONACYT Mexico)| J-51435-IV |Available from: 2012-03-08 Created: 2012-03-08 Last updated: 2017-12-07

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Wallén, HelenaLaska, Matthias

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