Results 71 to 80 of about 1,492 (187)

Epichloë fungal endophytes – a vital component for perennial ryegrass survival in New Zealand

open access: yesNew Zealand Journal of Agricultural Research, Volume 67, Issue 4, Page 451-468, August 2024.
ABSTRACT Pastoral agriculture underpins the New Zealand economy. Its success in generating export income is due to a mild and moist temperate climate, productive soils, innovative farmers supported by an effective research and development system, and an energy efficient production system based on year‐round grazing.
John R. Caradus
wiley   +1 more source

Using Condensed Tannin to Mitigate Tall Fescue Toxicosis [PDF]

open access: yes, 2022
Endophyte-infected (Neotyphodium coenophialum) tall fescue, [Schedonorus arundinaceus (Shreb.)] produces ergot alkaloids. Condensed tannins could bind to ergot alkaloids and render them ineffective.
Grote, Ally Jo
core   +1 more source

The growth promotion in endophyte symbiotic plants does not penalise the resistance to herbivores and bacterial microbiota

open access: yesPlant, Cell &Environment, Volume 47, Issue 8, Page 2865-2878, August 2024.
Abstract A trade‐off between growth and defence against biotic stresses is common in plants. Fungal endophytes of the genus Epichloë may relieve this trade‐off in their host grasses since they can simultaneously induce plant growth and produce antiherbivore alkaloids that circumvent the need for host defence. The Epichloë ability to decouple the growth‐
Wei Zhang   +6 more
wiley   +1 more source

Physiological Effects of Ergot Alkaloid and Indole-Diterpene Consumption on Sheep under Hot and Thermoneutral Ambient Temperature Conditions

open access: yesAnimals, 2016
A controlled feeding study was undertaken to determine the physiological and production effects of consuming perennial ryegrass alkaloids (fed via seed) under extreme heat in sheep. Twenty-four Merino ewe weaners (6 months; initial BW 30.8 ± 1.0 kg) were
Michelle L. E. Henry   +3 more
doaj   +1 more source

Endophytes and heat tolerance in lambs grazing perennial ryegrass [PDF]

open access: yes, 1994
Paper presented at the 56th New Zealand Grassland Association Conference, 17-20 October 1994, Hanmer Springs.Endophytes in perennial ryegrass protect their hosts against attack by Argentine stem weevil but cause adverse affects, including heat stress, in
Fletcher, LR, Markham, LJ, White, SR
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Serotonin receptor‐mediated vasorelaxation occurs primarily through 5‐HT4 activation in bovine lateral saphenous vein

open access: yesPhysiological Reports, Volume 12, Issue 13, July 2024.
Abstract To better understand mechanisms of serotonin‐ (5‐HT) mediated vasorelaxation, isolated lateral saphenous veins from cattle were assessed for vasoactivity using myography in response to increasing concentrations of 5‐HT or selective 5‐HT receptor agonists.
Ronald J. Trotta   +2 more
wiley   +1 more source

Molecular characterisation of the HMG CoA reductase gene from Neotyphodium Lolii : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Molecular Genetics at Massey University, Palmerston North, New Zealand [PDF]

open access: yes, 1997
3-Hydroxy-3-methylglutaryl Coenzyme A reductase (Hmg) catalyses the conversion of HMG CoA to mevalonic acid: the first step of the isoprenoid biosynthetic pathway.
Dobson, Joanne Margaret
core  

Determination of ergovaline in tall fescue by a specific monoclonal antibody [PDF]

open access: yesFood and Agricultural Immunology, 1998
A monoclonal antibody (EV5B3) was developed using a conjugate of ergovaline and bovine serum albumin linked at the indole N(1) of the ergovaline molecule. This resulted in an antibody specific for the distal cyclol peptide moiety of ergovaline. As a result the antibody was specific for ergot peptide alkaloids having an isopropyl group at the C(5 ...
Richard A. Shelby   +3 more
openaire   +1 more source

Stability and purity of selected ryegrass Epichloë endophytes in New Zealand dairy pastures

open access: yesGrassland Research, Volume 3, Issue 2, Page 113-122, June 2024.
Ryegrass tiller sampling is performed to determine Epichloë fungal endophyte infection and strain of Epichloë, to ensure that sown selected endophytes are delivering pasture production, animal health, and productivity benefits for New Zealand dairy farmers.
David E. Hume   +6 more
wiley   +1 more source

Effects of fescue toxicosis on growth and thermoregulation of rats [abstract] [PDF]

open access: yes, 2004
only availableFaculty Mentor: Don Spiers, Animal SciencesTall fescue (Festuca arundinacia), a cool season forage grass, has been utilized by many farmers for over fifty year to feed livestock.
Bearden, Kendra, Spiers, Donald E.
core  

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