Poster: Hormones
Abs #
628: Brassinosteroids regulated heavy metals uptake in Brassica campestris L.
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Presenter: |
Kaur, Sukhbir , sukhi369@yahoo.com |
Authors | Kaur, Sukhbir (A) Bhardwaj, Renu (A) | | Affiliations: |
(A): Guru Nanak Dev. University
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Brassinosteroids have strong influence on plant growth and possess an exclusive combination of properties, which are very promising their economic value (Maugh, 1981) in agriculture and horticulture. The stress protective and immunomodulatory effects of these phytochemicals had put them successfully on commercial level application. The continuous use of pesticides, fungicides and bactericides and cultivation of crops in the soils rich in heavy metal contents have magnified the accumulation of heavy metals in these plants. The accumulated metals thus find their entry in the animal system and being non- degradable in nature, keep on cycling from abiotic to biotic components and back. Brassinosteroids application to crops and plants promises a lowered uptake and accumulation of such elements. Present work has been proposed to study heavy metals stress protective properties of brassinosteroids different concentrations (0.0001M, 0.001M and 0.01 M) of heavy metals (Cu, Ni, and Co) with combination of 24- epibrassinolide (10-5, 10-7 and -10-9 M) were applied to Brassica seedlings grown in petri plates. On studying the uptake of heavy metals by seedlings it was observed that brassinosteroids treatments to plants lowered the uptake of these metals as compared to control. On comparing various treatments of epibrassinolide (10-5, 10-7 and -10-9 M) it was observed that 10-7M metal concentrations could effectively block the uptake (Cu) as compared with other treatments (10-5 and 10-9 M). For Ni uptake, the treatment with 10-9 M epibrassinolide was effective. Similarly for Co the uptake was influenced maximum by 10-7 M concentration of BRs as compared to other concentrations.
