Evaluation of antioxidatant potential in medical plants under UV-B-irradiation

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Abstract


The UV-B irradiation action (6 -36,9 dg/m2) on medical plants Artemisia lerchiana L., Nigella sativa L., Ocimum basilicum L., grown in water culture, was studying. In plant leaves and roots the content of malondialdehyde, pigments, phenols, flavonoids, proline, and activities of antioxidant enzymes were determined. Investigated plants were able to resist to action of UV-B-irradiation (low and middle dose) without any power input for increasing of biosynthesis of low and high molecular component of antioxidant defense system. The damage level under stress conditions was low. At first hours plants used the constitutive level of antioxidants and after 24 h it was needed the antioxidant pool refilling. Carotinoids, flavonoids and proline were used by plants in 4 h after irradiation, the antocian synthesis increased after 12 h.

W IM Toaima

Russian People's Friendship University

Кафедра ботаники, физиологии, патологии растений и агробиотехнологии; Российский университет дружбы народов; Russian People's Friendship University

N L Radyukina

Timirjazev Institute of Plant Physiology

Институт физиологии растений им. К.А. Тимирязева РАН; Timirjazev Institute of Plant Physiology

G A Dmitrieva

Russian People's Friendship University

Кафедра ботаники, физиологии, патологии растений и агробиотехнологии2Институт физиологии растений им. К.А. Тимирязева РАНул. Ботаническая, 35, Москва, Россия, 127276; Российский университет дружбы народов; Russian People's Friendship University

Vl V Kuznetsov

Russian People's Friendship University

1Кафедра ботаники, физиологии, патологии растений и агробиотехнологии2Институт физиологии растений им. К.А. Тимирязева РАНул. Ботаническая, 35, Москва, Россия, 127276; Российский университет дружбы народов; Russian People's Friendship University

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Copyright (c) 2009 Тоайма В.И., Радюкина Н.Л., Дмитриева Г.А., Кузнецов В.В.

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