You Position: Home > Paper
PHYSIOLOGICAL AND BIOCHEMICAL RESPONSE OF Al-SENSITIVE AND Al-TOLERANT WHEAT TO ALUMINUM
( views:168, downloads:2 )
- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF APPLIED & ENVIRONMENTAL BIOLOGY
- Issue:
- 5
- DOI:
- 10.3321/j.issn:1006-687X.2004.05.004
- Key Word:
- 小麦;铝胁迫;酸沉降;生理生化反应
Abstract： 研究了冬小麦Triticum aestivum L.铝抗性品系T202和铝敏感品系T105幼苗经0,50 μmol L-1,75 μmol L-1,100 μmol L-1和150 μmol L-1铝处理后根部的生理生化变化.结果表明:小麦根生长被严重抑制;酸性磷酸酶活性增强,磷代谢激活;硝酸还原酶受到一定程度的抑制;葡萄糖-6-磷酸脱氢酶对铝浓度极其敏感;葡萄糖含量下降;而膜脂过氧化产物丙二醛(MDA)含量上升,超氧化物歧化酶(SOD)的活性升高和还原型谷胱甘肽(GSH)的含量下降. 证实:铝胁迫造成了氧化伤害,激活了植物体内的抗氧化系统.分析还表明,T202耐铝的各项指标优于T105,前者的代谢酶活性对铝胁迫的反应更为迅捷,并有良好的能量储备和调动机制来抵御铝胁迫及由此产生的胁迫. 图8 参14
- [1].Effects of Copper, Manganese and Ph on the Growth and Several Enzyme Activities of Mycorrhizal Fungus Cenococcum Geophilum Fr.[J].1996,(4).
- [2]Kucukakyuz K,Rincon Zachary M,Samuels TD.Al partitioning patterns and root growth as related to Al sensitivity and Al tolerance in wheat.[J].1997,113(2).
- [3]O, Hankinson,D J, Cove.Regulation of the pentose phosphate pathway in the fungus Aspergillus nidulans. The effect of growth with nitrate.[J].1974,249.
- [4]C D Foy,R L Chaney,M C White.The Physiology of Metal Toxicity in Plants[J].1978,29.
- [5]T, Boller,H, Kende.Hydrolytic enzymes in the central vacuole of plant cells.[J].1979,63.
- [6]张承圭等著.生物化学仪器分析及技[M].1990.