JUPA, Radek, Lenka PLAVCOVÁ, Vít GLOSER and Steven JANSEN. Linking xylem water storage with anatomical parameters in five temperate tree species. Tree Physiology. Oxford Journals, vol. 36, No 6, p. 756-769. ISSN 0829-318X. doi:10.1093/treephys/tpw020. 2016.
Other formats:   BibTeX LaTeX RIS
Basic information
Original name Linking xylem water storage with anatomical parameters in five temperate tree species
Authors JUPA, Radek (203 Czech Republic, guarantor, belonging to the institution), Lenka PLAVCOVÁ (203 Czech Republic), Vít GLOSER (203 Czech Republic, belonging to the institution) and Steven JANSEN (56 Belgium).
Edition Tree Physiology, Oxford Journals, 2016, 0829-318X.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 30105 Physiology
Country of publisher United Kingdom of Great Britain and Northern Ireland
Confidentiality degree is not subject to a state or trade secret
Impact factor Impact factor: 3.653
RIV identification code RIV/00216224:14310/16:00090049
Organization unit Faculty of Science
Doi http://dx.doi.org/10.1093/treephys/tpw020
UT WoS 000381283600008
Keywords in English branch xylem; capacitance; embolism; parenchyma; root xylem; sapwood; water potential; wood density
Tags AKR, rivok
Tags International impact, Reviewed
Changed by Changed by: RNDr. Radek Jupa, Ph.D., učo 269230. Changed: 22/11/2017 14:14.
Abstract
In this study, we measured sapwood capacitance (C) in terminal branches and roots of five temperate tree species (Fagus sylvatica L., Picea abies L., Quercus robur L., Robinia pseudoacacia L., Tilia cordata Mill.). Capacitance was calculated separately for water released mainly from capillary (CI; open vessels, tracheids, fibres, intercellular spaces and cracks) and elastic storage compartments (CII; living parenchyma cells), corresponding to two distinct phases of the moisture release curve. We found that C was generally higher in roots than branches, with CI being 3–11 times higher than CII. Sapwood density and the ratio of dead to living xylem cells were most closely correlated with C. In addition, the magnitude of CI was strongly correlated with fibre/tracheid lumen area, whereas CII was highly dependent on the thickness of axial parenchyma cell walls. Our results indicate that water released from capillary compartments predominates over water released from elastic storage in both branches and roots, suggesting the limited importance of parenchyma cells for water storage in juvenile xylem of temperate tree species. Contrary to intact organs, water released from open conduits in our small wood samples significantly increased CI at relatively high water potentials. Linking anatomical parameters with the hydraulic capacitance of a tissue contributes to a better understanding of water release mechanisms and their implications for plant hydraulics.
PrintDisplayed: 19/4/2024 13:47