Publications by authors named "C R Voisey"

Article Synopsis
  • Asexual endophytic fungi help certain grass plants survive tough conditions and can pass from parent plants to their seeds, but not all seeds get infected.
  • Researchers looked at how different types of perennial ryegrass transmitted these fungi, finding that some plants did better than others.
  • The study found that plants that didn't transmit the fungi as well were better at fighting off the fungi, as their defense genes were more active, leading to lower amounts of the fungi in their seeds.
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var. and sp. TG-3 are filamentous fungal endophytes of perennial ryegrass () that have a substantial impact on New Zealand's agricultural economy by conferring biotic advantages to the host grass.

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Grazing ruminants contribute to global climate change through enteric methane and nitrous oxide emissions. However, animal consumption of the plant polyphenolics, proanthocyanidins, or condensed tannins (CTs) can decrease both methane emissions and urine nitrogen levels, leading to reduced nitrous oxide emissions, and concomitantly increase animal health and production. CTs are largely absent in the foliage of important temperate pasture legumes, such as white clover (), but found in flowers and seed coats.

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Condensed tannins (CT) are highly desirable in forage as they sequester dietary protein and reduce bloat and methane emissions in ruminants. However, the widely used forage legume white clover () only produces CTs in flowers and trichomes and at levels too low to achieve therapeutic effects. Genetic transformation with transcription factor from was effective in inducing CTs to 0.

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Vertical transmission of symbiotic endophytes from host grasses into progeny seed is the primary mechanism by which the next generation of plants is colonized. This process is often imperfect, resulting in endophyte-free seedlings which may have poor ecological fitness if the endophyte confers protective benefits to its host. In this study, we investigated the influence of host genetics and environment on the vertical transmission of var.

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