« Previous AbstractEvolution of the bipolar mating system of the mushroom Coprinellus disseminatus from its tetrapolar ancestors involves loss of mating-type-specific pheromone receptor function    Next AbstractIndividual adsorption of low volatility pheromones: Amphiphilic molecules on a clean water-air interface »

ACS Cent Sci

Title:		How Adsorption of Pheromones on Aerosols Controls Their Transport
Author(s):		Jami L; Zemb T; Casas J; Dufreche JF;
Address:		"ICSM, CEA, CNRS, ENSCM, Univ Montpellier, Marcoule, 30207 Bagnols-sur-Ceze, France. Institut de Recherche sur la Biologie de l'Insecte, UMR 7261, CNRS-Universite de Tours, 37200 Tours, France"
Journal Title:		ACS Cent Sci
Year:		2020
Volume:		20200812
Issue:		9
Page Number:		1628 - 1638
DOI:		10.1021/acscentsci.0c00892
ISSN/ISBN:		2374-7943 (Print) 2374-7951 (Electronic) 2374-7943 (Linking)
Abstract:		"We propose a general transport theory for pheromone molecules in an atmosphere containing aerosols. Many pheromones are hydrophobic molecules containing polar groups. They are low volatile and have some properties similar to those of hydrotropes. They therefore form a nonsoluble film at the water-air interface of aerosols. The fate of a small pheromone puff in air is computed through reaction-diffusion equations. Partitioning of pheromones between the gas and the aerosol surface over time is studied for various climate conditions (available aerosol surface) and adsorption affinities (energy of adsorption). We show that, for adsorption energy above 30 k (B) T per molecule, transport of pheromones on aerosols dominates over molecular transport typically 10 s after pheromone emission, even when few adsorbing aerosols are present. This new communication path for airborne chemicals leads to distinctive features including enhanced signal sensibility and increased persistence of pheromone concentration in the air due to slow diffusion of aerosols. Each aerosol droplet has the ability to adsorb thousands of pheromones to the surface, keeping a 'history' of the atmospheric content between emission and reception. This new mechanism of pheromone transport leads to dramatic consequences on insect sensing revisiting the way we figure the capture of chemical signals"
Keywords:
Notes:		"PubMed-not-MEDLINEJami, Ludovic Zemb, Thomas Casas, Jerome Dufreche, Jean-Francois eng 2020/10/02 ACS Cent Sci. 2020 Sep 23; 6(9):1628-1638. doi: 10.1021/acscentsci.0c00892. Epub 2020 Aug 12"