Physiological and biochemical response of wheat seedlings to organic pollutant 1, 2, 4-trichlorobenzene
文献类型: 外文期刊
作者: Zhang, B. 2 ; Chu, G. 2 ; Wei, C. 2 ; Ye, J. 2 ; Lei, B. 3 ; Li, Z. 2 ; Liang, Y. 1 ;
作者机构: 1.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Key Lab Crop Nutr & Fertilizat, Minist Agr, Beijing 100193, Peoples R China
2.Shihezi Univ, Coll Agr, Key Lab Oasis Ecoagr, Shihezi, Peoples R China
3.Xinjiang Acad Agr Sci, Inst Nucl & Biol Technol, Urumqi, Peoples R China
关键词: antioxidant enzymes;membrane permeability;non-enzymatic antioxidants;1, 2, 4-trichlorobenzene;wheat
期刊名称:NEW ZEALAND JOURNAL OF CROP AND HORTICULTURAL SCIENCE ( 2020影响因子:1.154; 五年影响因子:1.424 )
ISSN: 0114-0671
年卷期: 2012 年 40 卷 2 期
收录情况: SCI
摘要: The growth and antioxidant defence responses in wheat (Triticum aestivum L.) seedlings grown hydroponically with 0 (control), 10, 20, 40 and 80 mg L-1 of 1, 2, 4-trichlorobenzene (TCB) were examined to better understand plant physiological and biochemical responses to chlorinated benzenes. Fresh and dry shoot weight, chlorophyll and soluble protein contents decreased significantly with increasing TCB concentration. In contrast, the rate of production of O-2(-) in the roots increased at lower TCB concentrations but decreased at higher concentrations. In addition, foliar electrolyte leakage and antioxidant defence activities increased linearly with increasing TCB concentration but were suppressed at higher concentrations in the roots. Taken together, the results support the hypothesis that antioxidant defence responses are an important component of plant responses to TCB, and oxidative damage appears to be a major factor leading to growth suppression in wheat exposed to higher TCB concentrations.
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