Volatile monoterpene 'fingerprints' of resinous Protium tree species in the Amazon rainforest.

Autor: Piva LRO; Department of Forest Sciences, Federal University of Paraná, Curitiba, PR, Brazil. Electronic address: luanipiva@yahoo.com.br., Jardine KJ; Department of Forest Management, National Institute for Amazon Research, Manaus, AM, Brazil; Climate and Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA. Electronic address: kjjardine@lbl.gov., Gimenez BO; Department of Forest Management, National Institute for Amazon Research, Manaus, AM, Brazil. Electronic address: bruno.oliva.gimenez@gmail.com., de Oliveira Perdiz R; Department of Botany, National Institute for Amazon Research, Manaus, AM, Brazil. Electronic address: ricoperdiz@gmail.com., Menezes VS; Department of Forest Management, National Institute for Amazon Research, Manaus, AM, Brazil. Electronic address: valdiek.menezes@gmail.com., Durgante FM; Department of Forest Management, National Institute for Amazon Research, Manaus, AM, Brazil. Electronic address: flaviamdflorestal@gmail.com., Cobello LO; Department of Forest Management, National Institute for Amazon Research, Manaus, AM, Brazil. Electronic address: cobelloleticia@gmail.com., Higuchi N; Department of Forest Management, National Institute for Amazon Research, Manaus, AM, Brazil. Electronic address: higuchi.niro@gmail.com., Chambers JQ; Climate and Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA; Department of Geography, University of California Berkeley, Berkeley, CA, USA. Electronic address: jchambers@lbl.gov.
Jazyk: angličtina
Zdroj: Phytochemistry [Phytochemistry] 2019 Apr; Vol. 160, pp. 61-70. Date of Electronic Publication: 2019 Feb 01.
DOI: 10.1016/j.phytochem.2019.01.014
Abstrakt: Volatile terpenoid resins represent a diverse group of plant defense chemicals involved in defense against herbivory, abiotic stress, and communication. However, their composition in tropical forests remains poorly characterized. As a part of tree identification, the 'smell' of damaged trunks is widely used, but is highly subjective. Here, we analyzed trunk volatile monoterpene emissions from 15 species of the genus Protium in the central Amazon. By normalizing the abundances of 28 monoterpenes, 9 monoterpene 'fingerprint' patterns emerged, characterized by a distinct dominant monoterpene. While 4 of the 'fingerprint' patterns were composed of multiple species, 5 were composed of a single species. Moreover, among individuals of the same species, 6 species had a single 'fingerprint' pattern, while 9 species had two or more 'fingerprint' patterns among individuals. A comparison of 'fingerprints' between 2015 and 2017 from 15 individuals generally showed excellent agreement, demonstrating a strong dependence on species identity, but not time of collection. The results are consistent with a previous study that found multiple divergent copies of monoterpene synthase enzymes in Protium. We conclude that the monoterpene 'fingerprint' database has important implications for constraining Protium species identification and phylogenetic relationships and enhancing understanding of physiological and ecological functions of resins and their potential commercial applications.
(Copyright © 2019 The Authors. Published by Elsevier Ltd.. All rights reserved.)
Databáze: MEDLINE
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