Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Does Fungal Endophyte Infection Improve Tall Fescue’s Growth Response to Fire and Water Limitation?

Journal Article · · PLoS ONE
 [1];  [2];  [3];  [2]
  1. University of Kentucky, Lexington, KY (United States); Kentucky State University, Frankfort, KY (United States); OSTI
  2. University of Kentucky, Lexington, KY (United States)
  3. Kentucky State University, Frankfort, KY (United States)

Invasive species may owe some of their success in competing and co-existing with native species to microbial symbioses they are capable of forming. Tall fescue is a cool-season, non-native, invasive grass capable of co-existing with native warm-season grasses in North American grasslands that frequently experience fire, drought, and cold winters, conditions to which the native species should be better-adapted than tall fescue. We hypothesized that tall fescue’s ability to form a symbiosis with Neotyphodium coenophialum, an aboveground fungal endophyte, may enhance its environmental stress tolerance and persistence in these environments. We used a greenhouse experiment to examine the effects of endophyte infection (E+ vs. E-), prescribed fire (1 burn vs. 2 burn vs. unburned control), and watering regime (dry vs. wet) on tall fescue growth. We assessed treatment effects for growth rates and the following response variables: total tiller length, number of tillers recruited during the experiment, number of reproductive tillers, tiller biomass, root biomass, and total biomass. Water regime significantly affected all response variables, with less growth and lower growth rates observed under the dry water regime compared to the wet. The burn treatments significantly affected total tiller length, number of reproductive tillers, total tiller biomass, and total biomass, but treatment differences were not consistent across parameters. Overall, fire seemed to enhance growth. Endophyte status significantly affected total tiller length and tiller biomass, but the effect was opposite what we predicted (E->E+). The results from our experiment indicated that tall fescue was relatively tolerant of fire, even when combined with dry conditions, and that the fungal endophyte symbiosis was not important in governing this ecological ability. The persistence of tall fescue in native grassland ecosystems may be linked to other endophyte-conferred abilities not measured here (e.g., herbivory release) or may not be related to this plant-microbial symbiosis.

Research Organization:
University of Kentucky, Lexington, KY (United States)
Sponsoring Organization:
USDOE; US Department of Agriculture (USDA); University of Kentucky
OSTI ID:
1904040
Journal Information:
PLoS ONE, Journal Name: PLoS ONE Journal Issue: 1 Vol. 9; ISSN 1932-6203
Publisher:
Public Library of ScienceCopyright Statement
Country of Publication:
United States
Language:
English

References (60)

Does Endophyte Influence Regrowth of Tall Fescue? journal October 1996
Inherited fungal symbionts enhance establishment of an invasive annual grass across successional habitats journal August 2010
Endophytic fungi (Neotyphodium coenophialum) affect the growth and mineral uptake, transport and efficiency ratios in tall fescue (Festuca arundinacea) journal May 2005
Does endophyte influence resource acquisition and allocation in defoliated tall fescue as a function of microsite conditions? journal May 2008
Use of a Rat Model To Evaluate Tall Fescue Seed Infected with Introduced Strains of Neotyphodium coenophialum journal August 2002
Evolution of herbicide resistance in weeds: vertically transmitted fungal endophytes as genetic entities journal September 2003
Endophyte infection accelerates morpho‐physiological responses to water deficit in tall fescue journal October 2006
Evolutionary Origins and Ecological Consequences of Endophyte Symbiosis with Grasses journal October 2002
Summer Dormancy in Perennial Temperate Grasses journal August 2006
Incidence and Distribution of the Tall Fescue Endophyte in the United States journal January 1987
Growth and water relations of field-grown tall fescue as influenced by drought and endophyte journal December 1996
Effects ofNeotyphodiumendophytes on growth, reproduction and drought-stress tolerance of threeLolium perenneL. genotypes journal December 2003
Symbioses of Grasses with Seedborne Fungal Endophytes journal June 2004
Performance Comparisons of Co-Occurring Native and Alien Invasive Plants: Implications for Conservation and Restoration journal November 2003
Scale-Dependent Interaction of fire and Grazing on Community Heterogeneity in Tallgrass Prairie journal August 2006
A fungus among us: broad patterns of endophyte distribution in the grasses journal June 2009
Effect of the Tall Fescue Endophyte on Plant Response to Environmental Stress journal January 1989
Tall Fescue Development in Response to Acremonium coenophialum and Soil Acidity journal January 1995
Effect of Topographic Position and Fire on Species Composition in Tallgrass Prairie in Northeast Kansas journal April 1987
Endophyte Infection Levels of Native and Naturalized Fescues in Illinois and England journal January 2001
Harvest Frequency and Burning Effects on Vigor of Native Grasses journal January 1998
Encroachment of Endophyte-infected on Endophyte-free Tall Fescue journal April 1998
Endophyte Effect on Drought Tolerance in Diverse Festuca Species book January 1997
Involvement of Neotyphodium Coenophialum in Phosphorus Uptake by Tall Fescue (Festuca Arundinacea Schreb.) book January 1997
An Invasive Grass Increases Live Fuel Proportion and Reduces Fire Spread in a Simulated Grassland journal November 2012
Endophyte symbiosis with tall fescue: how strong are the impacts on communities and ecosystems? journal May 2007
Evolution of herbicide resistance in weeds: vertically transmitted fungal endophytes as genetic entities journal September 2003
Soil biota and exotic plant invasion journal February 2004
Effects of elevated CO2, nitrogen and fungal endophyte-infection on tall fescue: growth, photosynthesis, chemical composition and digestibility journal March 2003
The role of fungal endophyte infection in the evolution of Lolium multiflorum resistance to diclofop-methyl journal June 2001
Naturalization and invasion of alien plants: concepts and definitions journal March 2000
Prescribed Fire and Herbicide Effects on Soil Processes During Barrens Restoration journal December 2002
Morphological and physiological effects of water deficit and endophyte infection on contrasting tall fescue cultivars journal March 2000
Incidence and Distribution of the Tall Fescue Endophyte in the United States journal January 1987
A Fungal Endophyte of Tall Fescue: Evaluation of Control Methods journal January 1984
Alkaloids may not be responsible for endophyte-associated reductions in tall fescue decomposition rates journal February 2010
Managing plant symbiosis: fungal endophyte genotype alters plant community composition journal April 2010
Tall Fescue Adaptation to Low Nitrogen Fertilization in Relation to Germplasm Type and Endophyte Infection journal June 2008
Interactions between infection by endophytic fungi and nutrient limitation in the grasses Lolium perenne and Festuca arundinacea journal January 1989
Physiological responses of Festuca arundinacea to fungal endophyte infection journal August 1996
Restoration of Native Perennials in a California Annual Grassland after Prescribed Spring Burning and Solarization journal December 2005
Fire as a Restoration Tool: A Decision Framework for Predicting the Control or Enhancement of Plants Using Fire journal April 2010
Restoration of Native Warm Season Grassland Species in a Tall Fescue Pasture Using Prescribed Fire and Herbicides journal December 2010
Effects of endophytic fungi on some drought tolerance mechanisms of tall fescue in a hydroponics culture journal June 2009
Microbially Mediated Plant Functional Traits journal December 2011
Response of Pratylenchus spp. in tall fescue infected with different strains of the fungal endophyte Neotyphodium coenophialum journal January 2005
Strategies to Convert Exotic Grass Pastures to Tall Grass Prairie Communities1 journal December 2004
Control of Invasive Weeds with Prescribed Burning journal June 2006
Scale-Dependent Interaction of fire and Grazing on Community Heterogeneity in Tallgrass Prairie journal August 2006
Texas Wintergrass and Buffalograss Response to Seasonal Fires and Clipping journal March 2007
Long-Term Response Patterns of Tallgrass Prairie to Frequent Summer Burning journal September 2008
Stand Persistence and Animal Performance for Tall Fescue Endophyte Combinations in the South Central USA journal September 2006
Endophyte Parasitism of Tall Fescue journal January 1988
Tall Fescue Development in Response to Acremonium coenophialum and Soil Acidity journal January 1995
Changes in Neotyphodium coenophialum Infestation Levels in Tall Fescue Pastures Due to Different Grazing Pressures journal January 1998
Comparative Demography of Three Graminoids Infected by Systemic, Clavicipitaceous Fungi journal April 1990
Fire Effects on Community Structure, Composition, and Diversity in a Dry Sandstone Barrens journal July 2003
FORAGES AND PASTURES SYMPOSIUM: Fungal endophytes of tall fescue and perennial ryegrass: Pasture friend or foe?12 journal May 2013
Using Herbicides to Rehabilitate Native Grasslands journal January 2007
A fungus among us: broad patterns of endophyte distribution in the grasses collection January 2016

Similar Records

Effects of multiple climate change factors on the tall fescue-fungal endophyte symbiosis: infection frequency and tissue chemistry.
Journal Article · Fri Dec 31 23:00:00 EST 2010 · New Phytologist · OSTI ID:1001725

Ecophysiological Responses of Tall Fescue Genotypes to Fungal Endophyte Infection, Elevated Temperature, and Precipitation
Journal Article · Sun Nov 01 00:00:00 EDT 2015 · Crop Science · OSTI ID:1582107

Influence of Tall Fescue Epichloë Endophytes on Rhizosphere Soil Microbiome
Journal Article · Tue Aug 31 00:00:00 EDT 2021 · Microorganisms · OSTI ID:1817946