MuhrMessierDelagrangeEtAl2016

Référence

Muhr, J., Messier, C., Delagrange, S., Trumbore, S., Xu, X., Hartmann, H. (2016) How fresh is maple syrup? Sugar maple trees mobilize carbon stored several years previously during early springtime sap-ascent. New Phytologist, 209(4):1410-1416. (Scopus )

Résumé

While trees store substantial amounts of nonstructural carbon (NSC) for later use, storage regulation and mobilization of stored NSC in long-lived organisms like trees are still not well understood. At two different sites with sugar maple (Acer saccharum), we investigated ascending sap (sugar concentration, δ13C, Δ14C) as the mobilized component of stored stem NSC during early springtime. Using the bomb-spike radiocarbon approach we were able to estimate the average time elapsed since the mobilized carbon (C) was originally fixed from the atmosphere and to infer the turnover time of stem storage. Sites differed in concentration dynamics and overall δ13C, indicating different growing conditions. The absence of temporal trends for δ13C and Δ14C indicated sugar mobilization from a well-mixed pool with average Δ14C consistent with a mean turnover time (TT) of three to five years for this pool, with only minor differences between the sites. Sugar maple trees hence appear well buffered against single or even several years of negative plant C balance from environmental stress such as drought or repeated defoliation by insects. Manipulative investigations (e.g. starvation via girdling) combined with Δ14C measurements of this mobilized storage pool will provide further new insights into tree storage regulation and functioning. See also the Commentary by Gessler and Treydte. © 2016 New Phytologist Trust.

Format EndNote

Vous pouvez importer cette référence dans EndNote.

Format BibTeX-CSV

Vous pouvez importer cette référence en format BibTeX-CSV.

Format BibTeX

Vous pouvez copier l'entrée BibTeX de cette référence ci-bas, ou l'importer directement dans un logiciel tel que JabRef .

@ARTICLE { MuhrMessierDelagrangeEtAl2016,
    AUTHOR = { Muhr, J. and Messier, C. and Delagrange, S. and Trumbore, S. and Xu, X. and Hartmann, H. },
    TITLE = { How fresh is maple syrup? Sugar maple trees mobilize carbon stored several years previously during early springtime sap-ascent },
    JOURNAL = { New Phytologist },
    YEAR = { 2016 },
    VOLUME = { 209 },
    PAGES = { 1410-1416 },
    NUMBER = { 4 },
    NOTE = { cited By },
    ABSTRACT = { While trees store substantial amounts of nonstructural carbon (NSC) for later use, storage regulation and mobilization of stored NSC in long-lived organisms like trees are still not well understood. At two different sites with sugar maple (Acer saccharum), we investigated ascending sap (sugar concentration, δ13C, Δ14C) as the mobilized component of stored stem NSC during early springtime. Using the bomb-spike radiocarbon approach we were able to estimate the average time elapsed since the mobilized carbon (C) was originally fixed from the atmosphere and to infer the turnover time of stem storage. Sites differed in concentration dynamics and overall δ13C, indicating different growing conditions. The absence of temporal trends for δ13C and Δ14C indicated sugar mobilization from a well-mixed pool with average Δ14C consistent with a mean turnover time (TT) of three to five years for this pool, with only minor differences between the sites. Sugar maple trees hence appear well buffered against single or even several years of negative plant C balance from environmental stress such as drought or repeated defoliation by insects. Manipulative investigations (e.g. starvation via girdling) combined with Δ14C measurements of this mobilized storage pool will provide further new insights into tree storage regulation and functioning. See also the Commentary by Gessler and Treydte. © 2016 New Phytologist Trust. },
    AUTHOR_KEYWORDS = { Bomb-radiocarbon approach; Nonstructural carbon (NSC) pool; Reserve carbon (C) mobilization; Springtime sap production; Sugar maple (Acer saccharum) },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1111/nph.13782 },
    KEYWORDS = { Acer; Acer saccharum; Hexapoda },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-84969376988&partnerID=40&md5=1ecd73507b895f7e403a72ff127813f7 },
}

********************************************************** ***************** Facebook Twitter *********************** **********************************************************

Abonnez-vous à
l'Infolettre du CEF!

********************************************************** ***************** Pub - Mycorhizes_2019 ****************** **********************************************************

********************************************************** ***************** Pub - Symphonies_Boreales ****************** **********************************************************

********************************************************** ***************** Boîte à trucs *************** **********************************************************

CEF-Référence
La référence vedette !

Jérémie Alluard (2016) Les statistiques au moments de la rédaction 

  • Ce document a pour but de guider les étudiants à intégrer de manière appropriée une analyse statistique dans leur rapport de recherche.

Voir les autres...