Article (Scientific journals)
Highlighting a New Morphospecies within the Dialium Genus Using Leaves and Wood Traits
Doucet, Robin; Bibang Bengono, Gaël; Ruwet, Marius et al.
2022In Forests, 13 (8), p. 1339
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Keywords :
Forestry; new species; chemometrics; wood; leaves; wood chemistry; morphospecies; dialium; gabon
Abstract :
[en] During inventories of lesser-known timber species in eastern Gabon, a new Dialium morphospecies was discovered. To discriminate it from the two other 2–5 leaflets Dialium species, 25 leaf traits were measured on 45 trees (16 Dialium pachyphyllum, 14 Dialium lopense, 15 Dialium sp. nov.). Nine wood chemical traits, as well as infrared spectra, were also examined on harvestable trees (four Dialium pachyphyllum and four Dialium sp. nov.). This study revealed seven discriminant leaf traits that allowed to create a field identification key. Nine significant differences (five in sapwood and four in heartwood) in terms of wood composition were highlighted. The use of the PLS-DA technique on FT-IR wood spectra allowed to accurately identify the new morphospecies. These results provide strong support for describing a new species in this genus. Implications for sustainable management of its populations are also discussed.
Disciplines :
Phytobiology (plant sciences, forestry, mycology...)
Author, co-author :
Doucet, Robin   ;  Université de Liège - ULiège > TERRA Research Centre
Bibang Bengono, Gaël  ;  Université de Liège - ULiège > Gembloux Agro-Bio Tech > Form. doct. sc. agro. & ingé. biol. (paysage)
Ruwet, Marius 
Van De Vreken, Isabelle ;  Université de Liège - ULiège > Département GxABT > Smart Technologies for Food and Biobased Products (SMARTECH)
Lecart, Brieuc ;  Université de Liège - ULiège > TERRA Research Centre
Doucet, Jean-Louis  ;  Université de Liège - ULiège > TERRA Research Centre > Gestion des ressources forestières et des milieux naturels
Fernandez Pierna, Juan Antonio
Lejeune, Philippe  ;  Université de Liège - ULiège > TERRA Research Centre > Gestion des ressources forestières et des milieux naturels
Jourez, Benoît ;  Université de Liège - ULiège > Département GxABT
Souza, Alain
Richel, Aurore  ;  Université de Liège - ULiège > TERRA Research Centre > Smart Technologies for Food and Biobased Products (SMARTECH)
 These authors have contributed equally to this work.
Language :
English
Title :
Highlighting a New Morphospecies within the Dialium Genus Using Leaves and Wood Traits
Publication date :
22 August 2022
Journal title :
Forests
ISSN :
1999-4907
Publisher :
MDPI AG
Special issue title :
The Diversity of Wood and Non-Wood Forest Products: Anatomical, Physical and Chemical Properties, and Potential Applications
Volume :
13
Issue :
8
Pages :
1339
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
Essence à Haut Potentiel de Valorisation (EHPval
Funders :
Programme de promotion de l’exploitation certifiée des forêts
Available on ORBi :
since 15 September 2022

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