Abstract
Activity of the antioxidant system is one of the mechanisms for the protection of plants against adverse environmental factors. Catalase - a primary antioxidant enzymes. Her change may serve as an indicator of plant resistance to stress. Studied catalase activity in tomato plants of different varieties under the action of low temperatures and cytokinin 6-BAP preparation. The object of investigation used 24- and 27-day-old tomato plant varieties Podarochnyi, Patrice, Volgogradskyi. Found that under the action of low temperatures, the decrease in positive catalase activity: 10-30% at 10 C and 40-60% at a temperature of 3 C as compared with non-refrigerated plants. Less resistant to hyperthermia were plant varieties Patrice. With increasing length of vegetation at a temperature of 25 C in 27-day-old tomato plants resulted in a minor increase in the activity of the enzyme. After the end of the cooling observed recovery of enzyme activity only at grades Podarochnyi and Patrice. This indicates that the indicated tomato varieties possess a high ability to restore metabolic processes. Using 6-regulator cytokinin BAP increased catalase activity in tomato plants as prolonged or momentary cooling. Especially responsive to the drug were plant varieties Patrice and Volgogradskyi. And 6-BAP helped repair catalase activity in 27-day-old plants in the aftereffect of cold stress. Were more sensitive plant varieties Podarochnyi.
Highlights
This article discusses the pollution of soils with heavy metals in the vicinity of railways
Due to the close proximity of agricultural lands to railroad tracks is important to take into account the contamination of soils by heavy metals in the bends of the Railways
Many heavy metals can accumulate in plants and, to be involved in the system «plant — man; plant — animal — man», which contributes to the deteriorating health of the population
Summary
Investigated pollution with heavy metals of tap railroad Kuibyshev railway. The studied area of the Kuibyshev railway station 1004 km to the station Obsharovka direction Samara-Syzran on the contents in the soils of tap railroad 4 heavy metals: Fe, Сu, Мn, Cг. УДК 577.175.1:582.926.2 ВЛИЯНИЕ 6-БАП НА АКТИВНОСТЬ КАТАЛАЗЫ РАСТЕНИЙ ТОМАТА В УСЛОВИЯХ ТЕМПЕРАТУРНОГО СТРЕССА Изучали активность каталазы у растений томата разных сортов при действии пониженных температур и цитокининового препарата 6-БАП.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
