Dwarf shrub hydraulics: two Vaccinium species (Vaccinium myrtillus, Vaccinium vitis‐idaea) of the European Alps compared. Issue 4 (4th March 2015)
- Record Type:
- Journal Article
- Title:
- Dwarf shrub hydraulics: two Vaccinium species (Vaccinium myrtillus, Vaccinium vitis‐idaea) of the European Alps compared. Issue 4 (4th March 2015)
- Main Title:
- Dwarf shrub hydraulics: two Vaccinium species (Vaccinium myrtillus, Vaccinium vitis‐idaea) of the European Alps compared
- Authors:
- Ganthaler, Andrea
Mayr, Stefan - Abstract:
- Abstract : Vaccinium myrtillus and Vaccinium vitis‐idaea are two dwarf shrubs widespread in the European Alps. We studied the hydraulics of these species hypothesizing that (1) the hydraulic architecture of dwarf shrubs differs from trees, (2) hydraulic properties reflect the species' ecological amplitude and (3) hydraulic properties vary spatially and seasonally. Key hydraulic parameters (osmotic potential, turgor loss point, xylem hydraulic conductivity, vulnerability to drought‐induced embolism, stomata closure, drought‐induced cell damage and embolism repair) and related wood anatomical traits (conduit diameter and conduit wall reinforcement) were analyzed at four sites in Tyrol, Austria. Both species exhibited low hydraulic safety as well as low hydraulic efficiency. Fifty percentage embolism accumulated at −2.08 ( V. myrtillus ) and −1.97 MPa ( V. vitis‐idaea ), 88% stomata closure was at −2.19 and −2.35 MPa, respectively. After drought, both species showed embolism repair on re‐watering. Site‐specific variation within species was low, while seasonal changes in embolism resistance and turgor loss point were observed. Results indicate that studied Vaccinium species have a high risk for embolism formation. This is balanced by refilling capacities, which are probably based on the small growth height of dwarf shrubs. V. vitis‐idaea, which occurs on drier sites, showed more efficient repair and a lower turgor loss point than V. myrtillus .
- Is Part Of:
- Physiologia plantarum. Volume 155:Issue 4(2015:Dec.)
- Journal:
- Physiologia plantarum
- Issue:
- Volume 155:Issue 4(2015:Dec.)
- Issue Display:
- Volume 155, Issue 4 (2015)
- Year:
- 2015
- Volume:
- 155
- Issue:
- 4
- Issue Sort Value:
- 2015-0155-0004-0000
- Page Start:
- 424
- Page End:
- 434
- Publication Date:
- 2015-03-04
- Subjects:
- Plant physiology -- Periodicals
571.2 - Journal URLs:
- http://www.blackwellpublishing.com/journal.asp?ref=0031-9317&site=1 ↗
http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1399-3054 ↗
http://onlinelibrary.wiley.com/ ↗ - DOI:
- 10.1111/ppl.12333 ↗
- Languages:
- English
- ISSNs:
- 0031-9317
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 6484.000000
British Library DSC - BLDSS-3PM
British Library STI - ELD Digital store - Ingest File:
- 335.xml