2007
DOI: 10.1016/s1672-6308(08)60005-0
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Effects of 1,2,4-Trichlorobenzene and Mercury Ion Stress on Ca2+ Fluxion and Protein Phosphorylation in Rice

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Cited by 3 publications
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“…It is well established that organic contaminants can inhibit plant growth (de Araujo et al 2006;Ge et al 2007;Liu et al 2009). In the present study, wheat growth was significantly inhibited by the addition of TCB as indicated by the observed decline in fresh and dry shoot weight (Fig.…”
Section: Discussionmentioning
confidence: 99%
“…It is well established that organic contaminants can inhibit plant growth (de Araujo et al 2006;Ge et al 2007;Liu et al 2009). In the present study, wheat growth was significantly inhibited by the addition of TCB as indicated by the observed decline in fresh and dry shoot weight (Fig.…”
Section: Discussionmentioning
confidence: 99%
“…(MDA)含量 [31] , 单位为 nmol g -1 FW; 用羟氨氧化法 [32] 测 诱导表达, 导致其受到的毒害作用小于宁粳 1 号。 TCB 对水稻苗期株高 [24] 、地上部生物量 [24] 和成 熟期有效分蘖数 [37] 光系统 PSII 的潜在活性(F v /F o )、 光化学猝灭系数(q P ) 及非光化学猝灭系数(q N )呈递减趋势; 杜青平、张 波等 [5,38] 发现水稻和小麦幼苗叶片中叶绿素 a、b 和 叶绿素总含量均随 TCB 浓度的增加而呈降低趋势。 本研究表明, 低浓度 TCB 使分蘖盛期宁粳 1 号叶 绿素含量比对照降低 3.4%, 而对扬辐粳 8 号却增加 0.2%。中高浓度的 TCB 胁迫使水稻光合器官受到伤 害 [26] , 对两品种分蘖盛期的叶绿素含量均有极显著 的抑制作用, 从而引起光合作用减弱, 干物重降低。 蛋白质是植物生长发育、新陈代谢过程中的重 要物质。已有研究表明 TCB 能诱导水稻和小麦幼苗 蛋白质的表达 [23,39] , 主要包括解毒酶、细胞壁物质、 激素、原初或次生代谢与调节等的相关酶, 进而导 致植株体内蛋白质含量的增加 [25] 活性有所降低, 根系受到的伤害明显大于叶片 [5,25] 。 张国良等 [22] 认为小麦敏感品种根系的SOD、POD活 性在低浓度TCB胁迫下有所升高, 而CAT活性却显著 降低。刘宛等 [20][21] 到诱导表达 [36] , 有利于清除活性氧和有毒物质、维 持细胞结构的稳定, 进而增强植株的抗逆能力;…”
Section: 常被用作化学合成(农药、染料)的中间体、溶剂、卫unclassified