Excretion of loline alkaloids in urine and faeces of sheep dosed with meadow fescue (Festuca pratensis) seed containing high concentrations of loline alkaloids

2012 ◽  
Vol 60 (3) ◽  
pp. 176-182 ◽  
Author(s):  
SR Gooneratne ◽  
BJ Patchett ◽  
M Wellby ◽  
LR Fletcher
Keyword(s):  
Festuca Pratensis ◽  
Meadow Fescue ◽  
Loline Alkaloids ◽  
High Concentrations

scholarly journals Root loline concentration in endophyteinfected meadow fescue (Festuca pratensis) is increased by grass grub (Costelytra zealandica) attack

2008 ◽  
Vol 61 ◽  
pp. 210-214 ◽  
Author(s):  
B.J. Patchett ◽  
R.B. Chapman ◽  
L.R. Fletcher ◽  
S.R. Gooneratne
Keyword(s):  
New Zealand ◽  
Festuca Pratensis ◽  
Meadow Fescue ◽  
Costelytra Zealandica ◽  
Loline Alkaloids ◽  
Insect Attack

The larvae of New Zealand grass grub are economically important subterranean pests of pastures Some endophyteinfected meadow fescues contain loline alkaloids in the roots which can protect the plant from insect attack Loline concentrations in the roots of meadow fescue ecotypes in autumn were similar to concentrations in shoots of the same line Loline concentrations in the roots of the meadow fescue ecotypes exposed to grass grub were significantly higher (P

Influence of nitrogen fertilization on growth and loline alkaloid production of meadow fescue (Festuca pratensis) associated with the fungal symbiont Neotyphodium uncinatum

Botany ◽  
2014 ◽  
Vol 92 (5) ◽  
pp. 370-376 ◽  
Author(s):  
Anja G. Bylin ◽  
David E. Hume ◽  
Stuart D. Card ◽  
Wade J. Mace ◽  
Catherine M. Lloyd-West ◽  
...  
Keyword(s):  
Biomass Production ◽  
Nitrogen Fertilization ◽  
Plant Performance ◽  
Total Biomass ◽  
Festuca Pratensis ◽  
Meadow Fescue ◽  
Growing Seasons ◽  
Significant Difference ◽  
Loline Alkaloids ◽  
Different Levels

In a field study during two growing seasons in northern Sweden, we assessed meadow fescue (Festuca pratensis Huds.) with and without Neotyphodium uncinatum to determine whether the endophyte affects plant performance regarding tiller and biomass production. In addition, we measured loline alkaloids produced in infected grasses. Approximately 1000 plants grew at two different levels of nitrogen fertilization: the normal amount applied in this region and one-half that amount. Increasing the amount of nitrogen increased the total number of tillers on the plants. Endophyte-infected plants produced more tillers per plant than plants without the endophyte; there was, however, no significant difference in proportion of reproductive tillers, winter survival, or total biomass production between endophyte-infected and noninfected plants. Infected plants produced loline alkaloids in different quantities without indication of being influenced by different nitrogen fertilization levels.

scholarly journals Endophyteinfected Festuca pratensis containing loline alkaloids deters feeding by Listronotus bonariensis

2008 ◽  
Vol 61 ◽  
pp. 205-209 ◽  
Author(s):  
B.J. Patchett ◽  
R.B. Chapman ◽  
L.R. Fletcher ◽  
S.R. Gooneratne
Keyword(s):  
Field Experiment ◽  
Festuca Pratensis ◽  
Meadow Fescue ◽  
Listronotus Bonariensis ◽  
Loline Alkaloids

Meadow fescue Festuca pratensis infected with Neotyphodium uncinatum contains loline alkaloids that may deter attack from pasture insects In a field experiment conducted in Canterbury high leaf loline alkaloid concentration reduced damage by Argentine stem weevil (ASW; Listronotus bonariensis) adults to 12 unique endophyteinfected meadow fescue ecotypes at four assessment times (DecApr; R2adj 489 P

scholarly journals Response of black beetle and redheaded pasture cockchafer larvae to loline alkaloids in meadow fescue roots

2010 ◽  
Vol 63 ◽  
pp. 219-223 ◽  
Author(s):  
R.H. Bryant ◽  
N.E. Cameron ◽  
G.R. Edwards
Keyword(s):  
Festuca Pratensis ◽  
Meadow Fescue ◽  
Loline Alkaloids

Meadow fescue (Festuca pratensis) infected with Neotyphodium uncinatum endophyte was used to investigate the response of redheaded pasture cockchafer (Adoryphorus coulonii) and black beetle (Heteronychus arator) larvae to loline alkaloids Root material of meadow fescue genotypes varying in loline alkaloid concentration were fed to individual larvae in a nochoice bioassay Total root loline concentrations ranged from 500 to 3000 g/g DM Growth of second instar cockchafer larvae was significantly reduced under treatments with highest loline concentrations (P

scholarly journals The effect of endophyte (Neotyphodium uncinatum) in meadow fescue on grass grub larvae

2003 ◽  
Vol 56 ◽  
pp. 123-128 ◽  
Author(s):  
A.J. Popay ◽  
R.J. Townsend ◽  
L.R. Fletcher
Keyword(s):  
Weight Gain ◽  
Population Density ◽  
Field Trial ◽  
Toxic Effects ◽  
Larval Feeding ◽  
Festuca Pratensis ◽  
Larval Weight ◽  
Meadow Fescue ◽  
Costelytra Zealandica ◽  
Pot Trials

Grass grub (Costelytra zealandica) population density mean larval weight and visible damage were lower in meadow fescue (Festuca pratensis) infected with the endophyte Neotyphodium uncinatum (E) than in uninfected meadow fescue (E) in an unreplicated field trial In two bioassays third instar grass grubs ate all meadow fescue E roots but significantly less of the E roots Larvae fed E roots lost weight at the same rate as unfed control larvae Larvae given a choice between maize and either E or E meadow fescue in a pot trial consumed 33 more of the maize in the E treatment than in the E treatment Weight gain of larvae in E treatments was significantly less than in E in both the choice and nochoice pot trials but survival was the same It was concluded that meadow fescue infected with N uncinatum deters grass grub larval feeding but has no major toxic effects

Storage and Remobilization of Carbohydrates in Meadow Fescue (Festuca pratensis Huds.)

1987 ◽  
Vol 130 (2-3) ◽  
pp. 101-109 ◽  
Author(s):  
Hans Peter Bucher ◽  
Felix Mächler ◽  
Josef Nösberger
Keyword(s):  
Festuca Pratensis ◽  
Meadow Fescue
Sign in / Sign up

Export Citation Format

Share Document