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

被引:18
作者
Chen, Wenhao
Xu, Chunming
Zhao, Bing
Wang, Xiaodong
Wang, Yuchun
机构
[1] Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100080, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing, Peoples R China
关键词
aluminum tolerance; Crocus sativus L; polyamines;
D O I
10.1007/s11738-007-0100-z
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
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 activities 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.
引用
收藏
页码:121 / 127
页数:7
相关论文
共 21 条
[1]   Biomedical properties of saffron and its potential use in cancer therapy and chemoprevention trials [J].
Abdullaev, FI ;
Espinosa-Aguirre, JJ .
CANCER DETECTION AND PREVENTION, 2004, 28 (06) :426-432
[2]  
BAKER CJ, 1994, PLANT CELL TISS ORG, V39, P7, DOI 10.1007/BF00037585
[3]   Polyamines and environmental challenges: recent development [J].
Bouchereau, A ;
Aziz, A ;
Larher, F ;
Martin-Tanguy, J .
PLANT SCIENCE, 1999, 140 (02) :103-125
[4]   Morphological and structural responses of plant roots to aluminium at organ, tissue, and cellular levels [J].
Ciamporová, M .
BIOLOGIA PLANTARUM, 2002, 45 (02) :161-171
[5]   Polyamine oxidase, a hydrogen peroxide-producing enzyme, is up-regulated by light and down-regulated by auxin in the outer tissues of the maize mesocotyl [J].
Cona, A ;
Cenci, F ;
Cervelli, M ;
Federico, R ;
Mariottini, P ;
Moreno, S ;
Angelini, R .
PLANT PHYSIOLOGY, 2003, 131 (02) :803-813
[6]   Functions of amine oxidases in plant development and defence [J].
Cona, A ;
Rea, G ;
Angelini, R ;
Federico, R ;
Tavladoraki, P .
TRENDS IN PLANT SCIENCE, 2006, 11 (02) :80-88
[7]   Behaviour of antioxidant defense system in the adaptive response to salt stress in Helianthus annuus L. cells [J].
Davenport, SB ;
Gallego, SM ;
Benavides, MP ;
Tomaro, ML .
PLANT GROWTH REGULATION, 2003, 40 (01) :81-88
[8]   ALUMINUM TOXICITY AND TOLERANCE IN PLANTS [J].
DELHAIZE, E ;
RYAN, PR .
PLANT PHYSIOLOGY, 1995, 107 (02) :315-321
[9]  
GONG ZT, 1999, CHINESE SOIL TAXONOM, P861
[10]   Polyamines as protectors against cadmium or copper-induced oxidative damage in sunflower leaf discs [J].
Groppa, MD ;
Tomaro, ML ;
Benavides, MP .
PLANT SCIENCE, 2001, 161 (03) :481-488