Osmotic and elastic adjustments in cold desert shrubs differing in rooting depth: coping with drought and subzero temperatures

Fabian G. Scholz; Sandra J. Bucci; Nadia Arias; Frederick Meinzer; Guillermo Goldstein

Treesearch

Osmotic and elastic adjustments in cold desert shrubs differing in rooting depth: coping with drought and subzero temperatures

Formally Refereed

Authors:

Fabian G. Scholz, Sandra J. Bucci, Nadia Arias, Frederick Meinzer, Guillermo Goldstein

Year:

2012

Type:

Scientific Journal

Station:

Pacific Northwest Research Station

Source:

Oecologia. 170: 885-897

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Abstract

Physiological adjustments to enhance tolerance or avoidance of summer drought and winter freezing were studied in shallow- to deep-rooted Patagonian cold desert shrubs. We measured leaf water potential, osmotic potential, tissue elasticity, stem hydraulic characteristics, and stomatal conductance across species throughout the year, and assessed tissue damage by subzero temperatures during winter.

Keywords

elastic modulus, hydraulic conductivity, stomatal conductance, tissue injury, water relationships

Citation

Scholz, Fabian G.; Bucci, Sandra J.; Arias, Nadia; Meinzer, Frederick C.; Goldstein, Guillermo. 2012. Osmotic and elastic adjustments in cold desert shrubs differing in rooting depth: coping with drought and subzero temperatures. Oecologia. 170: 885-897.