Index Catalog // ScholarsArchive@OSU

Traits, properties, and performance: how woody plants combine hydraulic and mechanical functions in a cell, tissue, or whole plant

Creator:: Lachenbruch, Barbara and McCulloh, Katherine A.
Abstract:: This review presents a framework for evaluating how cells, tissues, organs, and whole plants perform both hydraulic and mechanical functions. The morphological alterations that affect dual functionality are varied: individual cells can have altered morphology; tissues can have altered partitioning to functions or altered cell alignment; and organs and whole...
Resource Type:: Article
Full Text:: Lachenbruch, B., & McCulloh, K. A. (2014). Traits, properties, and performance: how woody plants combine

Evidence for xylem embolism as a primary factor in dehydration-induced declines in leaf hydraulic conductance

Creator:: Johnson, Daniel M., McCulloh, Katherine A., Woodruff, David R., and Meinzer, Frederick C.
Abstract:: Hydraulic conductance of leaves (K[subscript leaf]) typically decreases with increasing water stress and recent studies have proposed different mechanisms responsible for decreasing K[subscript leaf]. We measured K[subscript leaf] concurrently with ultrasonic acoustic emissions (UAEs) in dehydrating leaves of several species to determine whether declining K[subscript leaf] was associated with xylem...
Resource Type:: Article
Full Text:: , KATHERINE A. MCCULLOH2, DAVID R. WOODRUFF3 & FREDERICK C. MEINZER3 1Nicholas School of the Environment

Do Ray Cells Provide a Pathway for Radial Water Movement in the Stems of Conifer Trees?

Creator:: Barnard, David M., Lachenbruch, Barbara, McCulloh, Katherine A., Kitin, Peter, and Meinzer, Frederick C.
Abstract:: • Premise of the study: The pathway of radial water movement in tree stems presents an unknown with respect to whole-tree hydraulics. Radial profi les have shown substantial axial sap fl ow in deeper layers of sapwood (that may lack direct connection to transpiring leaves), which suggests the existence of...
Resource Type:: Article
Full Text:: depth) and radial water transport conductivity ( k s-rad ; kg·m −1 ·s −1 ·MPa −1 ), as well as changes

An Annual Pattern of Native Embolism in Upper Branches of Four Tall Conifer Species

Creator:: McCulloh, Katherine A., Johnson, Daniel M., Meinzer, Frederick C., and Lachenbruch, Barbara
Abstract:: Premise of the study: The Pacific Northwest of North America experiences relatively mild winters and dry summers. For the tall coniferous trees that grow in this region, we predicted that loss in the hydraulic conductivity of uppermost branches would be avoided because of difficulty reversing accumulated emboli in xylem that...
Resource Type:: Article
Full Text:: River Canopy Crane Research Facility, particularly M. Schroeder. M. McCord, K. Anlauf, R. Johnson, and

McCullohKatherineForestryDynamicPipelineHydraulic.pdf

Creator:: McCulloh, Katherine A., Johnson, Daniel M., Meinzer, Frederick C., and Woodruff, David R.
Abstract:: Recent work has suggested that plants differ in their relative reliance on structural avoidance of embolism versus maintenance of the xylem water column through dynamic traits such as capacitance, but we still know little about how and why species differ along this continuum. It is even less clear how or...
Full Text:: hydraulic safety in four tall conifer species McCulloh, K. A., Johnson, D. M., Meinzer, F. C. and Woodruff

Hydraulic safety margins and embolism reversal in stems and leaves: Why are conifers and angiosperms so different?

Creator:: Johnson, Daniel M., McCulloh, Katherine A., Woodruff, David R., and Meinzer, Frederick C.
Abstract:: Angiosperm and coniferous tree species utilize a continuum of hydraulic strategies. Hydraulic safety margins (defined as differences between naturally occurring xylem pressures and pressures that would cause hydraulic dysfunction, or differences between pressures resulting in loss of hydraulic function in adjacent organs (e.g., stems vs. leaves) tend to be much...
Resource Type:: Article
Full Text:: a A R R A A K P X E C V N C 1 p m m s 0 h Plant Science 195 (2012) 48– 53 Contents lists

A comparison of the hydraulic efficiency of a palm species (Iriartea deltoidea) with other wood types

Creator:: Renninger, Heidi J., McCulloh, Katherine A., and Phillips, Nathan
Abstract:: Palms are an important component of tropical ecosystems, living alongside dicotyledonous trees, even though they have a very different growth pattern and vascular system. As monocots, vessels in palms are located within vascular bundles and, without a vascular cambium that many dicotyledonous trees possess, palms cannot add additional vessels to...
Resource Type:: Article
Full Text:: Heidi J. Renninger 1* , Katherine A. McCulloh 2 , Nathan Phillips 1 1 Boston University

Contrasting Hydraulic Strategies in Two Tropical Lianas and Their Host Trees

Creator:: Johnson, Daniel M., Domec, Jean-Christophe, Woodruff, David R., McCulloh, Katherine A., and Meinzer, Frederick C.
Abstract:: • Premise of the Study: Tropical liana abundance has been increasing over the past 40 yr, which has been associated with reduced rainfall. The proposed mechanism allowing lianas to thrive in dry conditions is deeper root systems than co-occurring trees, although we know very little about the fundamental hydraulic physiology...
Resource Type:: Article
Full Text:: . WOODRUFF 4 , KATHERINE A. MCCULLOH 5 , AND FREDERICK C. MEINZER 4 2

Impacts of tree height on leaf hydraulic architecture and stomatal control in Douglas-fir

Creator:: Woodruff, David R., McCulloh, Katherine A., Warren, Jeffrey M., Meinzer, Frederick C., and Lachenbruch, Barbara
Abstract:: This study investigated the mechanisms involved in the regulation of stomatal closure in Douglas-fir and evaluated the potential impact of compensatory adjustments in response to increasing tree height upon these mechanisms. In the laboratory, we measured leaf hydraulic conductance (Kleaf) as leaf water potential (Yl) declined for comparison with in...
Resource Type:: Article
Full Text:: Douglas-fir DAVID R. WOODRUFP2, KATHERINE A. MCCULLOH23, JEFFREY M. WARREN', FREDERICK C. MEINZER1

A comparison of daily water use estimates derived from constant-heat sap-flow probe values and gravimetric measurements in pot-grown saplings.

Creator:: McCulloh, Katherine A., Winter, Klaus, Meinzer, Frederick C., Garcia, Milton, Aranda, Jorge, and Lachenbruch, Barbara
Abstract:: Use of Granier-style heat dissipation sensors to measure sap flow is common in plant physiology, ecology and hydrology. There has been concern that any change to the original Granier design invalidates the empirical relationship between sap flux density and the temperature difference between the probes. Here, we compared daily water...
Resource Type:: Article
Full Text:: -heat sap-flow probe values and gravimetric measurements in pot-grown saplings KATHERINE A. MCCULLOH

ScholarsArchive@OSU

Traits, properties, and performance: how woody plants combine hydraulic and mechanical functions in a cell, tissue, or whole plant

Evidence for xylem embolism as a primary factor in dehydration-induced declines in leaf hydraulic conductance

Do Ray Cells Provide a Pathway for Radial Water Movement in the Stems of Conifer Trees?

An Annual Pattern of Native Embolism in Upper Branches of Four Tall Conifer Species

McCullohKatherineForestryDynamicPipelineHydraulic.pdf

Hydraulic safety margins and embolism reversal in stems and leaves: Why are conifers and angiosperms so different?

A comparison of the hydraulic efficiency of a palm species (Iriartea deltoidea) with other wood types

Contrasting Hydraulic Strategies in Two Tropical Lianas and Their Host Trees

Impacts of tree height on leaf hydraulic architecture and stomatal control in Douglas-fir

A comparison of daily water use estimates derived from constant-heat sap-flow probe values and gravimetric measurements in pot-grown saplings.

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