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In vitro monitoring of Artemisia afra using a non-invasive phenotyping system based on VOCs tracking
Durenne, Bastien; Geerts, Pascal; Fauconnier, Marie-Laure
2018Greensys 2019 - International Symposium on Advanced Technologies and Management for Innovative Greenhouses
 

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Keywords :
volatile organic compounds; phenotyping; high-throughput; Artemisa afra
Abstract :
[en] Secondary metabolites such as volatile organic compounds (VOCs) can be emitted by plants constitutively, with differentiation among and within species, or after de novo synthesis induced by different stresses. VOC emissions could therefore represent an innovative tool as non-invasive marker of abiotic stress and, in particular to monitor phenotypic dynamics.1 We have compared the blend of volatiles emitted by several accessions of 21-day old Artemisia afra plantlets thanks to a laboratory, high-throughput and homemade glass chambers system.2 A. afra is one of the most widely used herbs in traditional medicines in the Asian and African region especially and, has attracted worldwide attention for its possible use in modern diseases in developed countries.The plantlets were propagated in vitro using axillary branching and cultivated under sterile and controlled conditions in a growth chamber equipped with new technology of LED lighting. The VOCs were trapped during 24 hours on Tenax® TA absorbent cartridges with a dynamic headspace sampling method and, were analysed using a thermal desorption unit and using gas chromatography‐mass spectrometry (TD‐GC/MS). Finally, the VOC detection was performed using a quadrupole‐type mass spectrometer (Agilent Technologies). We found very interesting results showing qualitative differences in VOC profiles among the several accessions of A. Afra. Monoterpenoids, sesquiterpenes and artemisia ketone were the major components analysed from chromatograms. In conclusion, this high-throughput and non-invasive system has a wide potential to detect small amounts of emitted VOCs, to discriminate plant genotypes and to monitor plant fitness under both biotic and abiotic stress. Moreover, the volatiles profiling could be also interesting in agricultural research related to other vegetable crops.
Disciplines :
Phytobiology (plant sciences, forestry, mycology...)
Author, co-author :
Durenne, Bastien ;  Université de Liège - ULiège > Doct. sc. agro. & ingé. biol. (Paysage)
Geerts, Pascal;  CRA-W
Fauconnier, Marie-Laure  ;  Université de Liège - ULiège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Chimie des agro-biosystèmes
Language :
English
Title :
In vitro monitoring of Artemisia afra using a non-invasive phenotyping system based on VOCs tracking
Publication date :
2018
Event name :
Greensys 2019 - International Symposium on Advanced Technologies and Management for Innovative Greenhouses
Event organizer :
Agrocampus Ouest
Centre Technique Interprofessionnel des Fruits et Légumes
Institut national de la recherche agronomique
Event place :
Angers, France
Event date :
du 16 au 20 juin 2019
Audience :
International
Available on ORBi :
since 14 December 2018

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