Protective role of β-sitosterol or gibberellic acid to Lycopersicum Esculentum cultivars under temperature stress [electronic resource]
Language: English Summary language: Arabic Description: p. 233-248Other title:- دور كلا من بيتا-سيتوستيرول او حمض الجبريليك في وقاية اصناف نبات الطماطم (Lycopersicum Esculentum) المزروعة تحت الاجهاد الحراري [Added title page title]
- Egyptian journal of botany, 2018 v. 58 (2) [electronic resource]
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Articles
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Main | ART EJB V58 No2 8 (Browse shelf(Opens below)) | Available |
Includes bibliographic reference
THIS STUDY investigate the efficacy of ?-sitosterol (10-3, 10-5 and 10-7 molar) or gibberellic acid (100ppm) on alleviating harmful effects
of temperature stress (10oC and 45oC) on three cultivars of Lycopersicum esculentum Mill., mainly Fayrouz, Aziza and N23-48 to the purpose the
activities of some antioxidant enzymes, protein patterns and DNA finger print in order to focus on the role of ?-sitosterol or gibberellic acid for
enhancing plant tolerance against temperature stress. It was found that, temperature stress (10oC and 45oC) decreased the activities of catalase and
peroxidase, while ?-sitosterol (10-3, 10-5 and 10-7 molar) or gibberellic acid (100ppm) enhanced these enzymes activity. The electrophoresis studies
showed that some new protein bands and DNA finger print were observed probably to increase plant tolerance against temperature stress. These results
give a positive indication of the use of ?-sitosterol specially 10-5 molar or gibberellic acid in field application to ameliorate the toxic effects
of temperature on tomato plants.
Summary in Arabic
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