| association of insects and ergot (claviceps purpurea) in kentucky bluegrass seed production fields. | insects in kentucky bluegrass seed production fields in oregon, idaho, and washington were sampled just before harvest and their association with ergot conidia of claviceps purpurea fr. (tul.) was evaluated during 1996-1998. a diversity of insects was observed at all three locations. the most abundant beneficial insects collected with sweep nets were nysium spp., nabis spp., ichneumonid wasps, and hippodamia spp. the cranberry girdler, chrysoteuchia topiaria (zeller), was the only important pest ... | 2001 | 11777051 |
| glutamic decarboxyiase of ergot, claviceps purpurea. | anderson, john a. (oregon state university, corvallis), vernon h. cheldelin, and tsoo e. king. glutamic decarboxylase of ergot, claviceps purpurea. j. bacteriol. 82:354-358. 1961.-l-glutamic acid is the only naturally occurring amino acid which can be decarboxylated by cell-free extracts of claviceps purpurea. this decarboxylase was partially purified and the properties of the enzyme studied. the specific activity of the purified preparation was 111 muliters per 10 min per mg of protein. the pro ... | 1961 | 13683214 |
| the role of the oregon state university endophyte service laboratory in diagnosing clinical cases of endophyte toxicoses. | the oregon state university colleges of veterinary medicine and agricultural sciences instituted the endophyte service laboratory to aid in diagnosing toxicity problems associated with cool-season grasses in livestock. the endophyte (neotyphodium coenophalum) present in tall fescue (festuca arundinacea) produces ergopeptine alkaloids, of which ergovaline is the molecule used to determine exposure and toxicity thresholds for the vasoconstrictive conditions "fescue foot" and "summer slump". anothe ... | 2014 | 25017309 |