Agrawal, Manju ; Kumar, H. D. (1978) Effect of 7-azatryptophan on heterocyst differentiation in Anabaena doliolum Bharadwaja Proceedings of the Indian Academy of Sciences, Section B, 87 (1). pp. 31-39. ISSN 0370-0097
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Official URL: http://www.ias.ac.in/j_archive/procb/87a/vol87acon...
Abstract
The effect of DL-7-azatryptophan, an analogue of tryptophan, has been studied on the heterocyst spacing pattern and the probability of proheterocyst regression inAnabaena doliolum. 7-azatryptophan suppressed growth and induced heterocyst differentiation in nitrogen-free medium. In ammonium (1 mM), nitrite (2 mM) and nitrate (2 mM) supplemented media, it caused proheterocyst regression with a frequency of 100%, 35% and 10% respectively. The role of azatryptophan in nitrogen metabolism has been discussed in relation to ammonia-uptake study.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Indian Academy of Sciences. |
| Keywords: | 7-azatryptophan; Heterocyst; Differentiation; Anabaena doliolum |
| ID Code: | 90555 |
| Deposited On: | 10 May 2012 12:40 |
| Last Modified: | 10 May 2012 12:40 |
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