Nature Communications (Apr 2021)

Non-structural carbohydrates mediate seasonal water stress across Amazon forests

  • Caroline Signori-Müller,
  • Rafael S. Oliveira,
  • Fernanda de Vasconcellos Barros,
  • Julia Valentim Tavares,
  • Martin Gilpin,
  • Francisco Carvalho Diniz,
  • Manuel J. Marca Zevallos,
  • Carlos A. Salas Yupayccana,
  • Martin Acosta,
  • Jean Bacca,
  • Rudi S. Cruz Chino,
  • Gina M. Aramayo Cuellar,
  • Edwin R. M. Cumapa,
  • Franklin Martinez,
  • Flor M. Pérez Mullisaca,
  • Alex Nina,
  • Jesus M. Bañon Sanchez,
  • Leticia Fernandes da Silva,
  • Ligia Tello,
  • José Sanchez Tintaya,
  • Maira T. Martinez Ugarteche,
  • Timothy R. Baker,
  • Paulo R. L. Bittencourt,
  • Laura S. Borma,
  • Mauro Brum,
  • Wendeson Castro,
  • Eurídice N. Honorio Coronado,
  • Eric G. Cosio,
  • Ted R. Feldpausch,
  • Letícia d’Agosto Miguel Fonseca,
  • Emanuel Gloor,
  • Gerardo Flores Llampazo,
  • Yadvinder Malhi,
  • Abel Monteagudo Mendoza,
  • Victor Chama Moscoso,
  • Alejandro Araujo-Murakami,
  • Oliver L. Phillips,
  • Norma Salinas,
  • Marcos Silveira,
  • Joey Talbot,
  • Rodolfo Vasquez,
  • Maurizio Mencuccini,
  • David Galbraith

DOI
https://doi.org/10.1038/s41467-021-22378-8
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 9

Abstract

Read online

The role of non-structural carbohydrates (NSC) in mediating the impacts of drought in tropical trees is unclear. Here, the authors analyse leaf and branch NSC in 82 Amazon tree species across a Basin-wide precipitation gradient, finding that allocation of leaf NSC to soluble sugars is higher in drier sites and is coupled to tree hydraulic status.