Mairgareth A Christman
Affiliation: University of Utah
- Testing the 'rare pit' hypothesis for xylem cavitation resistance in three species of AcerMairgareth A Christman
Department of Biology, University of Utah, Salt Lake City, UT 84025, USA
New Phytol 182:664-74. 2009..Adjustments in membrane properties and extent of pitting per vessel apparently combine to influence cavitation resistance across species...
- Magnitude of nighttime transpiration does not affect plant growth or nutrition in well-watered ArabidopsisMairgareth A Christman
Department of Land, Airand Water Resources, University of California, Davis, CA 95616, USA
Physiol Plant 136:264-73. 2009..The N treatment had no effect on g(night). Thus, higher E(night) did not provide a nutrient or growth benefit to Arabidopsis, even when the plants were N-limited...
- Single-vessel flow measurements indicate scalariform perforation plates confer higher flow resistance than previously estimatedMairgareth A Christman
Department of Biology, University of Utah, 257 South 1400 East, Salt Lake City, UT 84112, USA
Plant Cell Environ 33:431-43. 2010..In summary, we found scalariform plates of diverse morphology essentially double lumen flow resistance, impeding xylem flow much more than previously estimated...
- Vulnerability curves by centrifugation: is there an open vessel artefact, and are 'r' shaped curves necessarily invalid?John S Sperry
Biology Department, University of Utah, 257 S 1400 E, Salt Lake City, UT 84112, USA
Plant Cell Environ 35:601-10. 2012..Nevertheless, confirming curves with native embolism and dehydration data is recommended...
- Rare pits, large vessels and extreme vulnerability to cavitation in a ring-porous tree speciesMairgareth A Christman
Institute for Ecohydrology Research, 1111 Kennedy Place Ste 4, Davis, CA 95616, USA
New Phytol 193:713-20. 2012..22 MPa. • The results confirm the rare pit prediction that a significant fraction of large vessels in Q. gambelii experience high probability of failure by air-seeding...
- Genetic variation in Arabidopsis thaliana for night-time leaf conductanceMairgareth A Christman
Department of Land, Air and Water Resources, University of California, Davis, CA 95616, USA
Plant Cell Environ 31:1170-8. 2008..Further characterization of genetic variation in g(night) within and among populations and species, and of associations with other traits and native habitats will be needed to understand g(night) as a putatively adaptive trait...
- Structure-function constraints of tracheid-based xylem: a comparison of conifers and fernsJarmila Pittermann
Department of Ecology and Evolutionary Biology, University of California, Santa Cruz, CA 95064, USA
New Phytol 192:449-61. 2011..We suspect that it is the arrangement of the primary xylem, in addition to the intrinsic traits of the conduits themselves, that may help explain the broad range of cavitation resistance in ferns...