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J. Sonsin, P. Gasson, C. Barros, C. Marcati (2012)
A comparison of the wood anatomy of 11 species from two cerrado habitats (cerrado s.s. and adjacent gallery forest)Botanical Journal of the Linnean Society, 170
R. Aloni, M. Zimmermann (1983)
The control of vessel size and density along the plant axis: a new hypothesisDifferentiation, 24
S. Lev-Yadun, R. Aloni (1991)
Natural and Experimentally Induced Dispersion of Aggregate Rays in Shoots of Quercus ithaburensis Decne. and Q. calliprinos WebbAnnals of Botany, 68
S. Lev-Yadun, R. Aloni (2008)
Differentiation of the ray system in woody plantsThe Botanical Review, 61
(2010)
Biostatistical analysis
U. Hacke, J. Sperry, James Wheeler, L. Castro (2006)
Scaling of angiosperm xylem structure with safety and efficiency.Tree physiology, 26 6
M. Tyree, F. Ewers (1991)
The hydraulic architecture of trees and other woody plantsNew Phytologist, 119
M. Press, S. Smith, G. Stewart (1991)
Carbon Acquisition and Assimilation in Parasitic PlantsFunctional Ecology, 5
R. Aloni (2015)
Ecophysiological implications of vascular differentiation and plant evolutionTrees, 29
T. Terrazas, T. Wendt (1995)
Systematic wood anatomy of the genus Tapirira Aublet (Anacardiaceae)— a numerical approachBrittonia, 47
G. Ellmore, F. Ewers (1986)
Fluid flow in the outermost xylem increment of a ring-porous tree, Ulmus americanaAmerican Journal of Botany, 73
J. Bauch, A. Shigo, M. Starck (1980)
Wound Effects in the Xylem of Acer and Betula Species, 34
J. Kraus, Marcos Arduin (1997)
Manual básico de métodos em morfologia vegetal
K. McCulloh, J. Sperry, B. Lachenbruch, F. Meinzer, P. Reich, S. Voelker (2010)
Moving water well: comparing hydraulic efficiency in twigs and trunks of coniferous, ring-porous, and diffuse-porous saplings from temperate and tropical forests.The New phytologist, 186 2
R. Ackroyd, J. Graves (1997)
The Regulation of the Water Potential Gradient in the Host and Parasite Relationship between Sorghum bicolor and Striga hermonthicaAnnals of Botany, 80
L. Musselman (1987)
Parasitic Flowering PlantsEconomic Botany, 41
Estelle Arbellay, P. Fonti, M. Stoffel (2012)
Duration and extension of anatomical changes in wood structure after cambial injury.Journal of experimental botany, 63 8
N. Holbrook, E. Ahrens, M. Burns, M. Zwieniecki (2001)
In vivo observation of cavitation and embolism repair using magnetic resonance imaging.Plant physiology, 126 1
In prep . Modifications in wood hydraulic conductivity and embolism increase in Tipuana tipu parasitized by Struthanthus vulgaris
S. Salleo, M. Gullo, P. Trifilò, A. Nardini (2004)
New evidence for a role of vessel‐associated cells and phloem in the rapid xylem refilling of cavitated stems of Laurus nobilis L.Plant Cell and Environment, 27
G. Franklin (1945)
Preparation of Thin Sections of Synthetic Resins and Wood-Resin Composites, and a New Macerating Method for WoodNature, 155
S. Lev-Yadun (1994)
Experimental evidence for the autonomy of ray differentiation in Ficus sycomorus L.The New phytologist, 126 3
M. Press, G. Phoenix (2005)
Impacts of parasitic plants on natural communities.The New phytologist, 166 3
C. Calvin (1997)
Host-Formed Tyloses in Vessels of the Mistletoe Phoradendron (Viscaceae)Iawa Journal, 18
Estelle Arbellay, M. Stoffel, M. Bollschweiler (2010)
Wood anatomical analysis of Alnus incana and Betula pendula injured by a debris-flow event.Tree physiology, 30 10
L. Cohen (1954)
THE ANATOMY OF THE ENDOPHYTIC SYSTEM OF THE DWARF MISTLETOE, ARCEUTHOBIUM CAMPYLOPODUMAmerican Journal of Botany, 41
Viviane Jono, G. Locosselli, G. Ceccantini (2013)
The Influence of tree size and Microenvironmental changes on the wood Anatomy of Roupala RhombifoliaIawa Journal, 34
T. Anfodillo, V. Carraro, M. Carrer, Claudio Fior, S. Rossi (2006)
Convergent tapering of xylem conduits in different woody species.The New phytologist, 169 2
(2011)
diffuse porous saplings from temperate and tropical forests. New Phytol
G. West, James Brown, B. Enquist (1999)
A general model for the structure and allometry of plant vascular systemsNature, 400
S. Lev-Yadun (2002)
The Distance to Which Wound Effects Influence the Structure of Secondary Xylem of Decapitated Pinus pineaJournal of Plant Growth Regulation, 21
H. Dean, J. Kuijt (1969)
The Biology of Parasitic Flowering PlantsBioScience
T. Anfodillo, G. Petit, A. Crivellaro (2013)
AXIAL CONDUIT WIDENING IN WOODY SPECIES: A STILL NEGLECTED ANATOMICAL PATTERNIawa Journal, 34
F. Lens, J. Sperry, Mairgareth Christman, B. Choat, D. Rabaey, S. Jansen (2011)
Testing hypotheses that link wood anatomy to cavitation resistance and hydraulic conductivity in the genus Acer.The New phytologist, 190 3
(2000)
Cellular patterns in dicotyledonous woods : their regulation
M. Zwieniecki, N. Holbrook (2009)
Confronting Maxwell's demon: biophysics of xylem embolism repair.Trends in plant science, 14 10
(1992)
the role of wounding in the differentiation of vascular rays
(1961)
Relation of dwarf mistletoe ( Arceuthobium ) to the xylem tissues of conifers . II . Effect of the parasite on the xylem anatomy of the host
Ana Gonzalez, J. Mauseth (2010)
Morphogenesis Is Highly Aberrant in the Vegetative Body of the Holoparasite Lophophytum leandrii (Balanophoraceae): All Typical Vegetative Organs Are Absent and Many Tissues Are Highly ModifiedInternational Journal of Plant Sciences, 171
J. Marshall, J. Ehleringer (1990)
Are xylem-tapping mistletoes partially heterotrophic?Oecologia, 84
R. Aloni, M. Zimmermann (1984)
Length, Width, and Pattern of Regenerative Vessels along Strips of Vascular TissueBotanical Gazette, 145
A. Nardini, M. Gullo, S. Salleo (2011)
Refilling embolized xylem conduits: is it a matter of phloem unloading?Plant science : an international journal of experimental plant biology, 180 4
J. Sperry, F. Meinzer, K. McCulloh (2008)
Safety and efficiency conflicts in hydraulic architecture: scaling from tissues to trees.Plant, cell & environment, 31 5
(1941)
Plant MicrotechniqueNature, 147
M. Amaral, G. Ceccantini (2011)
The endoparasite Pilostyles ulei (Apodanthaceae – Cucurbitales) influences wood structure in three host species of MimosaIawa Journal, 32
C. Calvin (1967)
Anatomy of the Endophytic System of the Mistletoe, Phoradendron flavescensBotanical Gazette, 128
S. Lev-Yadun, R. Aloni (1993)
Effect of wounding on the relations between vascular rays and vessels in Melia azedarach L.The New phytologist, 124 2
Parasitic plants are capable of causing a variety of effects to their hosts, including alterations in the process of wood formation. However, the majority of studies dealing with parasitic plant anatomy have focused on the host–parasite interface and the direct action of the haustorium, which is the organ responsible for attaching the parasite to the host. Considering this gap, we studied the anatomical and functional effects caused by a mistletoe species, Phoradendron crassifolium (Santalaceae), on the wood anatomy of the host tree Tapirira guianensis (Anacardiaceae). Both parasitized and non-parasitized branches were collected from host trees. Traditional wood anatomy procedures were employed, along with functionality experiments using the ascent of safranin solution through the xylem. Prior to the analysis, all sampled branches were divided in “upstream” and “downstream” portions, considering the direction of xylem sap flow inside the plant body. This design was chosen in order to avoid biased results derived from normal ontogeny-related wood anatomical and functional changes. Our results showed that infested wood expressed a higher density of embolized vessels, narrower vessel lumen diameter, higher vessel density, taller and wider rays, and fibers with thinner cell walls. All these responses were most conspicuous in the downstream sections of the parasitized branches. We propose that the wood anatomical and functional alterations were induced by the combination of water stress caused by water use by the parasite and consequent low turgor in differentiating cambial derivates; by unbalanced auxin/cytokinin concentrations originating at the infestation region due to phloem disruptions caused by the parasite’s penetration and action; and by higher than usual ethylene levels. Further analysis of hydraulic conductivity and hormonal changes in host branches are necessary to test this hypothesis.
IAWA Journal – Brill
Published: May 20, 2015
Keywords: Parasitic plants; mistletoe; ecological wood anatomy; wood hydraulics; Santalales; haustorium
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