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2008 | 30 | 1 |
Tytuł artykułu

Improved al tolerance of saffron (Crocus sativus L.) by exogenous polyamines

Autorzy
Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The aluminum (Al) tolerance of saffron (Crocus sativus L.) in hydroponics and the method of improving Al tolerance were investigated. Compared with the Al-free control, saffron root elongation was decreased by 59.3 and 75% at 0.05 and 0.2 mM Al stress, respectively. At 0.5 mM Al stress, the root elongation was inhibited completely. Addition of 1 mM polyamines improved saffron root growth markedly at 0.2 mM Al stress. Putrescine (Put) showed better amelioration effect than spermidine (Spd) and spermine (Spm). The root elongation in Put treatment was only 15% lower than that of Al-free control. The alleviation of Al rhizotoxicity by polyamines might be attributed to lower Al content in the root tips, and subsequent less lipid peroxidation and oxidative stress. Higher ctivities of amine oxidases and Hydrogen peroxide (H2O2) content might decrease the effects of Spd and Spm on alleviating oxidative damage compared with that of Put.
Słowa kluczowe
Wydawca
-
Rocznik
Tom
30
Numer
1
Opis fizyczny
p.121-127,fig.,ref.
Twórcy
autor
  • State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, P.O. Box 353, 100080 Beijing, People's Republic of China
  • Graduate School of Chinese Academy of Sciences, Beijing, People's Republic of China
autor
  • State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, P.O. Box 353, 100080 Beijing, People's Republic of China
  • Graduate School of Chinese Academy of Sciences, Beijing, People's Republic of China
autor
  • State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, P.O. Box 353, 100080 Beijing, People's Republic of China
autor
  • State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, P.O. Box 353, 100080 Beijing, People's Republic of China
autor
  • State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, P.O. Box 353, 100080 Beijing, People's Republic of China
Bibliografia
  • Abdullaev FI, Espinosa-Aguirre JJ (2004) Biomedical properties of saffron and its potential use in cancer therapy and chemoprevention trials. Cancer Detect Prev 28:426–432
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  • Cona A, Cenci F, Cervelli M, Federico R, Mariottini P, Moreno S, Angelini R (2003) Polyamine Oxidase, a hydrogen peroxideproducing enzyme, is up-regulated by light and down-regulated by auxin in the outer tissues of the maize mesocotyl1. Plant Physiol 131:803–813
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  • Papadakis AK, Roubelakis-Angelakis KA (2005) Polyamines inhibit NADPH oxidase-mediated superoxide generation and putrescine prevents programmed cell death induced by polyamine oxidasegenerated hydrogen peroxide. Planta 220:826–837
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  • Tang W, Newton RJ (2005) Polyamines reduce salt-induced oxidative damage by increasing the activities of antioxidant enzymes and decreasing lipid peroxidation in Virginia pine. Plant Growth Regul 46:31–43
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  • Yamamoto Y, Kobayashi Y, Matusmoto H (2001) Lipid peroxidation is an early symptom triggered by aluminum, but not the primary cause of elongation inhibition in pea roots. Plant Physiol 125:199–208
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Bibliografia
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