Use of Actinomadura AC 170 antibiotics in the treatment of some cultivated plant diseases [electronic resource].

Includes reference.

The influence of antibiotics of Actinomadura AC170 (Actinomycetales) on the expression of chocolate spot diseases and the Ascochyta fabae infection of broad bean and on the Fusarium wilt of flax was studied. The antibiotics were produced on solid medium GYEA (glucose-yeast extract-agar), extracted with n-butanol and purified on column of Sephadex LH 20 and by preparative thin-layer chromatography. A HPLC analysis allowed to obtain two antibiotics noted 170A and l70B. These antibiotics reduced the foliar diseases but 170A was the most effective. However, these antibiotics did not cause any reduction of the Fusarium wilt of flax nor of the population of F. o. lini in the soil. 170A reduced the density of fungi only with large amount and in sterilized sandy soil. The antibiotics of Actinomadura did not show any inhibitory effect, even with large amount, on the growth of plants.

Summary in Arabic.

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