Haskins, F.A. and Gorz, H.J. and Vogel, K.P. (1979) Cyanogenesis in Indiangrass Seedlings. Crop Science, 19 (6). pp. 761-765.
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Abstract
In a study of seedlings of 72 entries representing 39 species, 14 genera, and 2 tribes of grasses, only entries of the genus Sorghastrum were found to contain the cyanogenic glucoside, dhurrin [(S)-p-hydroxymandelonitrile β-D-glucopyranoside], Dhurrin was found in seedlings of each of the 10 entries of indiangrass [Sorghastrum nutans (L.) Nash] and the three entries of S. pellitum. Seedlings of five indiangrass cultivars were assayed for dhurrin concentration. Levels expressed as HCN potential (HCN-p) ranged from about 900 ppm for ‘Holt’ to about 1,200 ppm for ‘Llano’ and ‘Oto’.Further studies with Oto seedlings indicated that first leaves were higher and more uniform in HCN-p than were other portions of the shoot, but all shoot portions contained dhurrin. Seedling roots also contained dhurrin, but the HCN-p of roots was appreciably lower than that of shoots. Spectral evidence indicated that dhurrin was present in extracts of leaves of tillers harvested from field-grown plants. Dhurrin was not detected in all such tillers, however. Indiangrass tiller extracts contained more interfering substances than seedling extracts, in agreement with previous observations on Sorghum seedlings
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Dhurrin, Prussic acid, Cyanide, Sorghastrum nutans (L.) Nash. |
| Author Affiliation: | University of Nebraska,Lincoln(USA) |
| Subjects: | Crop Improvement > Seed Technology |
| Divisions: | Sorghum |
| Depositing User: | Mr B Krishnamurthy |
| Date Deposited: | 05 Jan 2012 10:53 |
| Last Modified: | 05 Jan 2012 10:53 |
| Official URL: | http://dx.doi.org/10.2135/cropsci1979.0011183X0019... |
| URI: | http://eprints.icrisat.ac.in/id/eprint/2915 |
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