본문 바로가기
HOME> 논문 > 논문 검색상세

논문 상세정보

Ecotoxicology and environmental safety v.147, 2018년, pp.382 - 393   SCI SCIE
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

Modulation of antioxidative defense expression and osmolyte content by co-application of 24-epibrassinolide and salicylic acid in Pb exposed Indian mustard plants

Kaur Kohli, Sukhmeen (Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar 143005, India ) ; Handa, Neha (Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar 143005, India ) ; Bali, Shagun (Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar 143005, India ) ; Arora, Saroj (Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar 143005, India ) ; Sharma, Anket (Department of Botany, DAV University, Sarmastpur, Jalandhar 144012, India ) ; Kaur, Ravdeep (Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar 143005, India ) ; Bhardwaj, Renu (Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar 143005, India ) ;
  • 초록  

    Abstract The study focuses on potential of combined pre-soaking treatment of 24-Epibrassinolide (EBL) and Salicylic acid (SA) in alleviating Pb phytotoxicity in Brassica juncea L. plants. The seeds after treatment with combination of both the hormones were sown in mixture of soil, sand and manure (3:1:1) and were exposed to Pb concentrations (0.25mM, 0.50mM and 0.75mM). After 30 days of growth, the plants were harvested and processed, for quantification of various metabolites. It was found that pre-sowing of seeds in combination of EBL and SA, mitigated the adverse effects of metal stress by modulating antioxidative defense response and enhanced osmolyte contents. Dry matter content and heavy metal tolerance index were enhanced in response to co-application of EBL and SA. The levels of superoxide anions, hydrogen peroxide and malondialdehyde were lowered by the combined treatment of hormones. Enhancement in activities of guaiacol peroxidase, catalase, glutathione reductase and glutathione-s-transferase were recorded. Contents of glutathione, tocopherol and ascorbic acid were also enhanced in response to co-application of both hormones. Expression of POD, CAT, GR and GST1 genes were up-regulated whereas SOD gene was observed to be down-regulated. Contents of proline, trehalose and glycine betaine were also reported to be elevated as a result of treatment with EBL+SA. The results suggest that co-application of EBL+SA may play an imperative role in improving the antioxidative defense expression of B. juncea plants to combat the oxidative stress generated by Pb toxicity. Highlights Seed presowing treatment with combination of EBL+SA results in alteration of antioxidative defense system. Gene expression of SOD , POD , CAT , GR , GST 1 genes was up-regulated in response to EBL+SA combined treatments. EBL+SA combined treatment led to enhancement in contents of osmolytes. EBL+SA combined treatment was able to combat ill-effects of Pb toxicity.


  • 주제어

    Antioxidative defense expression .   24-Epibrassinolide .   Lead toxicity .   Osmolytes .   Oxidative damage .   Salicylic acid.  

 활용도 분석

  • 상세보기

    amChart 영역
  • 원문보기

    amChart 영역

원문보기

무료다운로드
  • 원문이 없습니다.

유료 다운로드의 경우 해당 사이트의 정책에 따라 신규 회원가입, 로그인, 유료 구매 등이 필요할 수 있습니다. 해당 사이트에서 발생하는 귀하의 모든 정보활동은 NDSL의 서비스 정책과 무관합니다.

원문복사신청을 하시면, 일부 해외 인쇄학술지의 경우 외국학술지지원센터(FRIC)에서
무료 원문복사 서비스를 제공합니다.

NDSL에서는 해당 원문을 복사서비스하고 있습니다. 위의 원문복사신청 또는 장바구니 담기를 통하여 원문복사서비스 이용이 가능합니다.

이 논문과 함께 출판된 논문 + 더보기