[Correlation between higher plants and bacteria in synthetic rhizosphere. 3. The development of rhizobia in N-free nutrient media in mixed culture with non-specific host plants].
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Investigation of the alkaloidal constituents of Heliotropium digynum resulted in the isolation of four alkaloids viz. heliotrine, europine, lasiocarpine and 7-angelylheliotrine. Moreover, HPLC and GLC showed the probable presence of heliotridine and some other unidentified minor constituents. A summary of the pharmacotoxicity and biological activity of the ethanolic extract, total alkaloids with special reference to heliotrine is presented.
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