skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Radiocarbon Suggests the Hemiparasitic Annual Melampyrum Lineare Desr. May Acquire Carbon from Stressed Hosts

Journal Article · · Radiocarbon
DOI:https://doi.org/10.1017/rdc.2017.97· OSTI ID:1538921

Abstract Hemiparasitic plants obtain water and solutes from their hosts, but much remains to be learned about these transfers. We used a forest girdling experiment to investigate how leaf gas exchange, carbon and nitrogen cycling in the root hemiparasiteMelampyrum lineareDesr. responded to disturbance and changes in physiology of potential host trees. By preventing belowground C allocation by 35% of the canopy, girdling decreased the starch and soluble sugar contents of bulk forest floor fine roots. Photosynthetic rates ofM. linearewere statistically significantly lower in the girdled plot, but their hypothesized drivers (foliar N, stomatal conductance and transpiration) had no statistically significant differences between girdled and non-girdled plots. However,M. linearein the girdled plot had higher foliar C concentrations and Δ14C than in the control plot, suggesting possible photosynthetic down-regulation in the girdled plot due to influx of older (e.g., host-derived) C into the leaves ofM. lineare. Within the girdled plot (but not the control plot),M. linearefoliar C concentrations were positively correlated with foliar Δ14C and δ15N, suggesting thatM. linearemay respond to changes in both C and N biogeochemistry during the decline of dominant canopy species.

Research Organization:
Michigan Technological Univ., Houghton, MI (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
DOE Contract Number:
FC02-06ER64158
OSTI ID:
1538921
Journal Information:
Radiocarbon, Vol. 60, Issue 1; ISSN 0033-8222
Publisher:
Cambridge University Press
Country of Publication:
United States
Language:
English

References (54)

Transcriptomes of the Parasitic Plant Family Orobanchaceae Reveal Surprising Conservation of Chlorophyll Synthesis journal December 2011
The evolution of parasitism in plants journal April 2010
Integrating ecology and physiology of root-hemiparasitic interaction: interactive effects of abiotic resources shape the interplay between parasitism and autotrophy journal September 2014
Discussion Reporting of 14 C Data journal January 1977
Leaf carbon isotope discrimination and nitrogen content for riparian trees along elevational transects journal February 1997
Growth, gas exchange and water use efficiency of the facultative hemiparasite Rhinanthus minor associated with hosts differing in foliar nitrogen concentration journal September 1993
The interplay between Pinus sylvestris , its root hemiparasite, Melampyrum pratense , and ectomycorrhizal fungi: Influences on plant growth and reproduction journal January 2000
Kinetics of nitrogen uptake by Populus tremuloides in relation to atmospheric CO2 and soil nitrogen availability journal March 2000
Seasonal dynamics and age of stemwood nonstructural carbohydrates in temperate forest trees journal November 2012
Seasonal changes in starch and sugar content of poplar (Populus deltoides x nigra cv. Dorskamp) and the impact of stem girdling on carbohydrate allocation to roots journal June 2010
Decomposition of Sub-Arctic Plants with Differing Nitrogen Economies: a Functional role for Hemiparasites journal December 2003
Carbon Isotope Ratios Demonstrate Carbon Flux from C 4 Host to C 3 Parasite journal December 1987
Nitrogen Uptake by Trees and Mycorrhizal Fungi in a Successional Northern Temperate Forest: Insights from Multiple Isotopic Methods journal January 2013
Gas exchange in leaves of the root hemiparasitemelampyrum arvense L. before and after attachment to the host plant journal March 1996
Defoliation increases risk of carbon starvation in root systems of mature aspen journal October 2011
Atmospheric Radiocarbon for the Period 1950–2010 journal January 2013
Forests losing large quantities of nitrogen have elevated 15N:14N ratios journal September 1990
Nitrogen isotopes link mycorrhizal fungi and plants to nitrogen dynamics journal August 2012
Growth of autotrophic and root-hemiparasitic understory plants under elevated CO2 and increased N deposition journal January 1997
Seasonal changes in the utilization and turnover of assimilation products in 8-year-old Scots pine (Pinus sylvestris L.) trees journal May 1994
Whole-ecosystem labile carbon production in a north temperate deciduous forest journal September 2009
Seasonal Course of Photosynthesis, Respiration, and Distribution of 14 C in Young Pinus resinosa Trees as Related to Wood Formation journal October 1968
Regulation of Photosynthesis by End-Product Accumulation in Leaves of Plants Storing Starch, Sucrose, and Hexose Sugars journal August 1992
Selective Advantages to Hemi-Parasitic Annuals, Genus Melampyrum, of a Seed-Dispersal Mutualism Involving Ants: I. Favorable Nest Sites journal June 1993
Ecological interpretations of nitrogen isotope ratios of terrestrial plants and soils journal June 2015
Studies of Melampyrum lineare journal July 1963
Phylogeny of the parasitic plant family Orobanchaceae inferred from phytochrome A journal July 2006
Attack on all fronts: functional relationships between aerial and root parasitic plants and their woody hosts and consequences for ecosystems journal January 2011
Wood net primary production resilience in an unmanaged forest transitioning from early to middle succession journal June 2010
Disturbance and the resilience of coupled carbon and nitrogen cycling in a north temperate forest journal January 2011
Catalyst and binder effects in the use of filamentous graphite for AMS
  • Vogel, John S.; Southon, John R.; Nelson, D. Erle
  • Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 29, Issue 1-2 https://doi.org/10.1016/0168-583X(87)90202-3
journal November 1987
Parasitic plants: parallels and contrasts with herbivores journal May 2002
Green plants that feed on fungi: facts and questions about mixotrophy journal February 2009
Role of Nitrogen in Resistance to Striga Parasitism of Maize journal January 1993
Variation in ruminants' preference for tall fescue hays cut either at sundown or at sunup. journal January 1999
Changes in soil nitrogen cycling in a northern temperate forest ecosystem during succession journal July 2014
The legacy of harvest and fire on ecosystem carbon storage in a north temperate forest journal September 2007
Review of Tropospheric Bomb 14 C Data for Carbon Cycle Modeling and Age Calibration Purposes journal January 2004
Initial characterization of processes of soil carbon stabilization using forest stand-level radiocarbon enrichment journal September 2005
The Physiology and Biochemistry of Parasitic Angiosperms journal June 1990
C3 grasses have higher nutritional quality than C4 grasses under ambient and elevated atmospheric CO2 journal September 2004
From tropics to tundra: Global convergence in plant functioning journal December 1997
Carbon Acquisition and Metabolism in a Root Hemiparasitic Angiosperm, Thesium humile (Santalaceae) Growing on Wheat (Triticum vulgare) journal January 1993
Mixotrophy everywhere on land and in water: the grand écart hypothesis journal December 2016
Influence of the host on three sub-Arctic annual facultative root hemiparasites. I. Growth, mineral accumulation and above-lground dry-matter partitioning journal September 1993
Convergence of soil nitrogen isotopes across global climate gradients journal February 2015
An ecosystem-scale radiocarbon tracer to test use of litter carbon by ectomycorrhizal fungi journal May 2006
Carbohydrate storage and use in an alpine population of the perennial herb, Oxytropis sericea journal August 1999
Sink regulation of photosynthesis journal July 2001
Carbon isotope dynamics of free-air CO2-enriched cotton and soils journal September 1994
Sustained carbon uptake and storage following moderate disturbance in a Great Lakes forest journal July 2013
Impacts of parasitic plants on natural communities: Tansley review journal February 2005
Influence of the host on three sub-Arctic annual facultative root hemiparasites. II. Gas exchange characteristics and resource use-efficiency journal May 1994
Interactions between hemiparasitic plants and their hosts: The importance of organic carbon transfer journal September 2010