Free proline content in Astragalus species
2002
Niknam, V. (Tehran Univ. (Iran) Dept. of Biology) | Ebrahimzadeh, H.
Free proline content was determined in roots and leaflets of 23 species of Astragalus collected from different regions of Iran. The content of free proline in roots and leaflets varied from 0.09-1.23 and 0.04-0.95% dry weight, respectively. In a number of species proline content was higher in leaflets than in roots, whereas in some other species proline content in roots was higher than in leaflets. The accumulation of free proline in different organs of different species can be attributed to the osmotic conditions of the plants which could represent differences in their mode of adjustment to the environmental condition. The habitat of the species can also affect the organ of proline accumulation. In the present paper, the proline content in roots and leaflets of various species of Astragalus is reported for the first time.
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