SEASONAL VARIATION IN THE CYANIDE POTENTIAL OF ARROWGRASS (TRIGLOCHIN MARITIMA)

Autor:	J. W. Hall, Ruth E. McDiarmid, Walter Majak, A. L. van Ryswyk
Rok vydání:	1980
Předmět:	biology Cyanogen Cyanide Hydrogen cyanide Growing season Plant Science Horticulture Seasonality biology.organism_classification medicine.disease chemistry.chemical_compound chemistry Agronomy Cyanogenic Glucoside Triglochin maritima Aquatic plant medicine Agronomy and Crop Science
Zdroj:	Canadian Journal of Plant Science. 60:1235-1241
ISSN:	1918-1833 0008-4220
DOI:	10.4141/cjps80-176
Popis:	The cyanide potential of arrowgrass (Triglochin maritima) was monitored during the growing season for 2 yr (1978 and 1979) to determine periods of peak toxicity. Arrowgrass samples from various sites were collected about every 2 wk, ground in dry ice and incubated to release hydrogen cyanide which was trapped in alkali. The highest concentration of the cyanogenic glucoside triglochinin, was revealed in new growth of leaves and spikes in spring. Saline habitats yielded arrowgrass with lower triglochinin levels than non-saline sites. Cyanogen levels in leaves were elevated substantially when severe moisture deficits prevailed on rangelands during the latter part of the growing season in 1979. The results of this survey provide a basis for predicting arrowgrass toxicity to ruminants.
Databáze:	OpenAIRE
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