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The effects of different nutritional condition on the growth and antioxidant enzyme activity of submerged macrophytes Myriophyllum spicatum L, Hydrilla verticillata L and Ceratophyllum demersum L. were investigated in this study.

模拟研究了沉水植物狐尾藻Myriophyllum spicatum L、轮叶黑藻Hydrilla verticillata L和金鱼藻Ceratophyllum demersum L在中、富两种营养水平下的生长及生理特性。

PKC and PKA activity assays showed that 0.03μmol/L of 20-HETE increased PKC and PKA activity in isolated cardiomyocytes, while chelerythrine (5μmol/L) and H-89 (5μmol/L) inhibited these effects.

PKC和PKA活性测定的结果表明20-HETE(0.03μmol/L)增加心肌细胞PKC和PKA的活性，并且白屈菜赤碱(5μmol/L)和H-89(5μmol/L)抑制该效应。

Conclusion］ By comprehensive comparison,the fresh-keeping effect of 1% Sugar+200 mg/L 8-HQS+ 25 mg/L AgNO3 +50 mg/L Al2(SO4)3 is best,its vase life reaches 22 days,which is 10 and 3 d longer than control and chrysal,respectively; moreover,it can nicely keep leaf color and prevent petals falling.

结论］综合比较，以1%蔗糖+200 mg/L 8-HQS +25 mg/L AgNO3 +50 mg/L Al2(SO4)3保鲜效果最佳，瓶插期达22 d，分别比对照和可利鲜延长了10和3 d；而且能较好地保持其叶色并不掉花瓣。

The results showed that attached Cladophora oligoclona grew quite well and had high removal rates of N and P in the eutrophic lake water at the concentrations of TN 10.512mg/L, NH4-N 8.563mg/L, TP 0.856mg/L and PO4-P 0.573mg/L.

结果显示，刚毛藻在原始浓度总氮10.512mg/L和总磷0.856mg/L的富营养化湖水中能维持正常的生长代谢，并能有效去除水体中的N、P养分。

With C.praecox var concolor as the tested material, 3 kinds of medicaments as Penicillin (700, 900, 1 100 mg/L), AgNO3 (102, 136, 170 mg/L) and 8-HQ (50, 70, 90, 200 mg/L) were used to make the orthogonal test, the fresh-keeping formula that was suitable for cutting-flower of C. praecox was screened and 5 indexes of fresh weight of flower shoots, water balance, blooming rate, soluble sugar content and protein content of C. praecox were determined.

方法］以素心腊梅为试材，以青霉素(700、900、1 100 mg/L)、硝酸银(102、136、170 mg/L)8-羟基喹啉(50、70、90、200 mg/L)3种药剂不同浓度进行正交试验，筛选适于切花腊梅保鲜剂配方，测定切花腊梅的花枝鲜重、水分平衡值、开花率、糖及蛋白质含量5个指标。

Result Based on the line graph of C.praecox var concolor and the data analysis on 5 groups of fresh weight of flower shoots, water balance, blooming rate, soluble sugar content and protein content, among 9 formula treatments in the orthogonal test, the formula of A2B2C3(900 mg/L penicillin+136 mg/L AgNO3+90 mg/L 8-HQ) had obvious effect of postponing the senescence of cutting-flower of C.praecox, which could keep the freshness of C. praecox var concolor for 15 d in winter and prolong the ornamental life by 6-7 d compared with CK.

结果］根据素心腊梅的折线图和花枝鲜重、糖含量、蛋白质含量、水分平衡值、开花率5组数据分析，在正交试验的9个处理中，以A2B2C3（青霉素900 mg/L+硝酸银136 mg/L+8-羟基喹咛90 mg/L）对延缓切花腊梅的衰老有明显的效果，在冬季条件下素心腊梅保鲜可达15 d，同时比对照延长观赏寿命67 d。

Sorghum, sudenese grass and orchard-grass (Dactylis glomerata L.), and the application of MeJA for the flowering synchronization of male sterile and restorer lines was investigated in seed production of hybrid rice.

外源MeJA强烈诱导稻、高粱、苏丹草和果园草等禾本科植物的颖花开放：早稻297的离体穗在经40μmol/L，400μmol/L和4mmol/L的MeJA溶液浸穗 2min处理后80min，在对照颖花开放尚未启动时，平均每穗颖花开放率分别达 7.5％，22.7％和44.5％；杂交稻安湘S-株173的连穗经4mmol/L的MeJA溶液浸穗2min处理后80min，开颖率达32.5％；不育系也能响应MeJA的诱导，经1mmol/L MeJA处理后，80min时开颖率达42.9±6.1％。

The results indicated the best medium for supension co-culture with Daucus carota and Daucus carota is MS, 2, 4-D 2 mg/L, NAA 1 mg/L and KT 0.2 mg/L, after 25 d the polysaccharide content of co-culture reaches the highest level 0.203 mg/g, and the saponin content of co-culture is 1.85mg/g, higher 3.35% than saponin of Panax ginseng culture.

结果表明，人参与胡萝卜悬浮混合培养的最佳基质为MS、2，4-D2mg/L、NAA1mg/L、KT0.2mg/L，在培养25d时混合培养物的多糖含量达到最高，浓度达到0.203mg/g，混合培养物的皂苷含量为1.85mg/g，比人参悬浮培养物皂苷含量高出3.35%。

Result: At most up to 500 mg·L-1, tetrahydropalmatine showed no sinificant effect on the cell viability, while dehydrocorydaline, berberine and palmatine significantly decreased the cell viability, exceeding 6.3, 0.6 and 6.3 mg·L-1, respectively（ P .05 or P .01）. Tetrahydropalmatine, dehydrocorydaline, berberine and palmatine significantly inhibited LDH leakage induced by anoxia-reoxia injury, at concentrations of 50-100, 1.25-5, 4 and 30 mg·L-1, respectively（ P .05 or P .01）. None of the four compounds showed significant effect on the hydrogen peroxide injury.

结果：多至500 mg·L-1的延胡索乙素对细胞活力无任何影响，脱氢紫堇碱、黄连素、巴马汀分别在质量浓度大于6.3， 0.6，6.3 mg·L-1时，显著降低细胞活力（ P 。05， P 。01）；延胡索乙素、脱氢紫堇碱、黄连素和巴马汀分别在质量浓度为50～100， 1.25～5， 4，30 mg·L-1时，显著抑制缺氧复氧导致的LDH漏出（ P 。05， P 。01）；4种单体对过氧化氢损伤无显著的保护作用。

Result: At most up to 500 mg·L-1, tetrahydropalmatine showed no sinificant effect on the cell viability; while dehydrocorydaline, berberine and palmatine significantly decreased the cell viability, exceeding 6.3, 0.6 and 6.3 mg·L-1, respectively（ P .05 or 0.01）. Tetrahydropalmatine, dehydrocorydaline, berberine and palmatine significantly inhibited LDH leakage induced by anoxia-reoxia injury, at concentrations of 50-100, 1.25-5, 4 and 30 mg·L-1, respectively（ P .05 or 0.01）. None of the four compounds showed significant effect on the hydrogen peroxide injury.

结果：多至500 mg·L-1的延胡索乙素对细胞活力无任何影响，脱氢紫堇碱、黄连素、巴马汀分别在质量浓度大于6.3， 0.6，6.3 mg·L-1时，显著降低细胞活力（ P 。05或0.01）；延胡索乙素、脱氢紫堇碱、黄连素和巴马汀分别在质量浓度为50～100， 1.25～5， 4，30 mg·L-1时，显著抑制缺氧复氧导致的LDH漏出（ P 。05或0.01）；4种单体对过氧化氢损伤无显著的作用。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。