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Title: Embolism spread in the primary xylem of Polystichum munitum : implications for water transport during seasonal drought

Journal Article · · Plant, Cell and Environment
DOI:https://doi.org/10.1111/pce.12618· OSTI ID:1401393
 [1];  [2];  [3];  [4]
  1. School of Forestry and Environmental Studies Yale University New Haven CT 06511 USA
  2. Pioneer Hi‐Bred International Inc. Woodland CA 95695 USA
  3. Universidad Central de Venezuela Facultad de Agronomía, Instituto de Botánica Agrícola Maracay 2101 Venezuela
  4. Department of Ecology and Evolutionary Biology University of California Santa Cruz CA 95064 USA

Abstract Xylem network structure and function have been characterized for many woody plants, but less is known about fern xylem, particularly in species endemic to climates where water is a limiting resource for months at a time. We characterized seasonal variability in soil moisture and frond water status in a common perennial fern in the redwood understory of a costal California, and then investigated the consequences of drought‐induced embolism on vascular function. Seasonal variability in air temperature and soil water content was minimal, and frond water potential declined slowly over the observational period. Our data show that Polystichum munitum was protected from significant drought‐induced hydraulic dysfunction during this growing season because of a combination of cavitation resistant conduits (Air‐seeding threshold (ASP) = −1.53 MPa; xylem pressure inducing 50% loss of hydraulic conductivity ( P 50 ) = −3.02 MPa) and a soil with low moisture variability. High resolution micro‐computed tomography (MicroCT) imaging revealed patterns of embolism formation in vivo for the first time in ferns providing insight into the functional status of the xylem network under drought conditions. Together with stomatal conductance measurements, these data suggest that P . munitum is adapted to tolerate drier conditions than what was observed during the growing season.

Sponsoring Organization:
USDOE
Grant/Contract Number:
DE‐AC02‐05CH11231
OSTI ID:
1401393
Journal Information:
Plant, Cell and Environment, Journal Name: Plant, Cell and Environment Vol. 39 Journal Issue: 2; ISSN 0140-7791
Publisher:
Wiley-BlackwellCopyright Statement
Country of Publication:
United Kingdom
Language:
English
Citation Metrics:
Cited by: 8 works
Citation information provided by
Web of Science

References (35)

Patterns and consequences of differential vascular sectoriality in 18 temperate tree and shrub species journal April 2006
Consequences of widespread tree mortality triggered by drought and temperature stress journal September 2012
Genotypic Variability in Vulnerability of Leaf Xylem to Cavitation in Water-Stressed and Well-Irrigated Sugarcane journal October 1992
Hydraulic properties of fern sporophytes: Consequences for ecological and evolutionary diversification journal December 2010
Global convergence in the vulnerability of forests to drought journal November 2012
Tree die-off in response to global change-type drought: mortality insights from a decade of plant water potential measurements journal May 2009
Automated analysis of three-dimensional xylem networks using high-resolution computed tomography journal May 2011
Rare pits, large vessels and extreme vulnerability to cavitation in a ring-porous tree species journal December 2011
How do trees die? A test of the hydraulic failure and carbon starvation hypotheses: How do trees die? journal June 2013
Fog in the California redwood forest: ecosystem inputs and use by plants journal December 1998
Polystichum munitum (Dryopteridaceae) varies geographically in its capacity to absorb fog water by foliar uptake within the redwood forest ecosystem journal July 2010
Structure and function of bordered pits: new discoveries and impacts on whole-plant hydraulic function journal February 2008
The Structure and Function of Xylem in Seed-Free Vascular Plants: An Evolutionary Perspective book January 2015
Xylem Transport Safety and Efficiency Differ among Fynbos Shrub Life History Types and between Two Sites Differing in Mean Rainfall journal June 2012
Mechanism of Water Stress-Induced Xylem Embolism journal November 1988
Differential summer water use by Pinus edulis and Juniperus osteosperma reflects contrasting hydraulic characteristics journal December 2007
The Dynamics of Embolism Repair in Xylem: In Vivo Visualizations Using High-Resolution Computed Tomography journal September 2010
Cavitation Resistance in Seedless Vascular Plants: The Structure and Function of Interconduit Pit Membranes journal April 2014
Leaf hydraulic architecture and water relations of three ferns from contrasting light habitats journal January 2010
Fog Water and Ecosystem Function: Heterogeneity in a California Redwood Forest journal February 2009
Use of centrifugal force in the study of xylem cavitation journal March 1997
The physiological implications of primary xylem organization in two ferns: Fern xylem and physiology journal May 2012
A method for measuring hydraulic conductivity and embolism in xylem journal January 1988
In Vivo Visualizations of Drought-Induced Embolism Spread in Vitis vinifera journal March 2013
Hydraulic integration and shrub growth form linked across continental aridity gradients journal August 2008
The physiological resilience of fern sporophytes and gametophytes: advances in water relations offer new insights into an old lineage journal January 2013
Origin and evolution of the Mediterranean vegetation and climate in Europe journal February 1984
Phenotypic Plasticity and Interactions Among Plants journal May 2003
Xylem water potentials and hydraulic conductances in eight species of ferns journal March 1985
Drought resistance in early and late secondary successional species from a tropical dry forest: the interplay between xylem resistance to embolism, sapwood water storage and leaf shedding: Drought resistance of tropical dry forest species journal August 2012
Ferns in an Angiosperm World: Cretaceous Radiation into the Epiphytic Niche and Diversification on the Forest Floor journal July 2012
Evolution, origin and age of lineages in the Californian and Mediterranean floras journal July 2009
Structure-function constraints of tracheid-based xylem: a comparison of conifers and ferns journal July 2011
Constraints and trade-offs in Mediterranean plant communities: The case of holm oak-Aleppo pine forests journal January 2000
Sustained and significant negative water pressure in xylem journal December 1995

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