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Leaf isoprene and monoterpene emission distribution across hyperdominant tree genera in the Amazon basin.
Jardine, Kolby J; Zorzanelli, Raquel F; Gimenez, Bruno O; Oliveira Piva, Luani Rosa de; Teixeira, Andrea; Fontes, Clarissa G; Robles, Emily; Higuchi, Niro; Chambers, Jeffrey Q; Martin, Scot T.
Afiliación
  • Jardine KJ; Earth and Environmental Science Area, Lawrence Berkeley National Laboratory, One Cyclotron Rd, building 64-241, Berkeley, CA, 94720, USA; National Institute for Amazon Research (INPA), Department of Forest Management, Ave. Andre Araujo, 2936, Manaus, AM, 69.080-97, Brazil. Electronic address: kjjard
  • Zorzanelli RF; Federal University of Espírito Santo (UFES), Ave. Governador Lindemberg, nº 316, Centro, Jerônimo, Monteiro, ES, 29.550-000, Brazil.
  • Gimenez BO; National Institute for Amazon Research (INPA), Department of Forest Management, Ave. Andre Araujo, 2936, Manaus, AM, 69.080-97, Brazil.
  • Oliveira Piva LR; Department of Forest Sciences, Federal University of Paraná, Curitiba, PR, Brazil.
  • Teixeira A; National Institute for Amazon Research (INPA), Department of Forest Management, Ave. Andre Araujo, 2936, Manaus, AM, 69.080-97, Brazil.
  • Fontes CG; College of Biological Sciences, University of Minnesota, 100 Ecology 1987 Upper Buford Circle, St. Paul, MN, 55108, USA.
  • Robles E; Earth and Environmental Science Area, Lawrence Berkeley National Laboratory, One Cyclotron Rd, building 64-241, Berkeley, CA, 94720, USA; College of Natural Resources, University of California Berkeley, 260 Mulford Hall, Berkeley, CA, 94720, USA.
  • Higuchi N; National Institute for Amazon Research (INPA), Department of Forest Management, Ave. Andre Araujo, 2936, Manaus, AM, 69.080-97, Brazil.
  • Chambers JQ; Earth and Environmental Science Area, Lawrence Berkeley National Laboratory, One Cyclotron Rd, building 64-241, Berkeley, CA, 94720, USA; Department of Geography, University of California Berkeley, 507 McCone Hall #4740, Berkeley, CA, 94720, USA.
  • Martin ST; School of Engineering and Applied Sciences and Department of Earth and Planetary Sciences, Harvard University, Cambridge, MA, 02138, USA.
Phytochemistry ; 175: 112366, 2020 Jul.
Article en En | MEDLINE | ID: mdl-32278887
Tropical forests are acknowledged to be the largest global source of isoprene (C5H8) and monoterpenes (C10H16) emissions, with current synthesis studies suggesting few tropical species emit isoprenoids (20-38%) and do so with highly variable emission capacities, including within the same genera. This apparent lack of a clear phylogenetic thread has created difficulties both in linking isoprenoid function with evolution and for the development of accurate biosphere-atmosphere models. Here, we present a systematic emission study of "hyperdominant" tree species in the Amazon Basin. Across 162 individuals, distributed among 25 botanical families and 113 species, isoprenoid emissions were widespread among both early and late successional species (isoprene: 61.9% of the species; monoterpenes: 15.0%; both isoprene and monoterpenes: 9.7%). The hyperdominant species (69) across the top five most abundant genera, which make up about 50% of all individuals in the Basin, had a similar abundance of isoprenoid emitters (isoprene: 63.8%; monoterpenes: 17.4%; both 11.6%). Among the abundant genera, only Pouteria had a low frequency of isoprene emitting species (15.8% of 19 species). In contrast, Protium, Licania, Inga, and Eschweilera were rich in isoprene emitting species (83.3% of 12 species, 61.1% of 18 species, 100% of 8 species, and 100% of 12 species, respectively). Light response curves of individuals in each of the five genera showed light-dependent, photosynthesis-linked emission rates of isoprene and monoterpenes. Importantly, in every genus, we observed species with light-dependent isoprene emissions together with monoterpenes including ß-ocimene. These observations support the emerging view of the evolution of isoprene synthases from ß-ocimene synthases. Our results have important implications for understanding isoprenoid function-evolution relationships and the development of more accurate Earth System Models.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Hemiterpenos Tipo de estudio: Prognostic_studies Idioma: En Revista: Phytochemistry Año: 2020 Tipo del documento: Article Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Hemiterpenos Tipo de estudio: Prognostic_studies Idioma: En Revista: Phytochemistry Año: 2020 Tipo del documento: Article Pais de publicación: Reino Unido