Moreover , 400 mmol / l nacl stress did not reduce k + content markedly compared with 100 mmol / l nacl stress whether under low k4 concentration or under high k + concentration . this is very different from the nonhalophytes 而且，在根中，无论是在低k “浓度条件还是在高k “浓度条件下， 400m mol lnaci胁迫与100mmol几naci胁迫相比，并没有使减蓬根中的k “含量明显下降。
It needed only 5 - 10min to activate at ph2 . 0 , 30min at ph3 . 0 . but the activated chymosin was n ' t somewhat stable enough at the lower ph value . the activated speed was improved by the increasing salt concentration 0时需要30min ，在较低ph下激活，己激活酶不稳定，易失活；随着缓冲液中naci浓度的增加，激活速度随之加快；在5下激活速度非常缓慢， 25以上激活速度明显加快。
So the ability of scavenging reactive oxygen species ( ros ) was enhanced and the injury caused by ros was alleviated . on the contrary , under na2co3 stress , the activity of sod decreased which made the ros can not be scavenged timely 在ndsco3胁迫下，玉米叶片内的v h “ atpase和v h ” ppase的水解活性虽然也增加，但增幅小于naci处理的，这就限制了玉米na十区域化能力的提高。
The proper solidified temperature is 170 , and the time is 20min . by this course , the magnets will have a coat which thickness is 30um . the magnets will have little increasing weight in the corrosive environment after 96 hours 以此电泳工艺涂层后的粘结ndfeb磁体，涂层厚度在30 m左右，四川大学硕士学位论文放置于t二35 、 5 %的naci中型盐雾中，间隙式喷雾% h后，磁体的腐蚀增重仅为zmgo
1 oomm nacl induced the open stomata of wild type close effectively , while the effects of nacl on stomatal aperture of ios5 were not significant ; 1 oomm naci and loum aba effectively induced stomatal closure of both wild type and ios5 100mmnacl可有效诱导野生型开放的气孔关闭，而对los5气孔开度的影响不很明显： 100mmnacl与10 m的aba共处理时，野生型及los5气孔开度均明显减小，且幅度类似。
The former parameter values are km = 14 . 87 umol / l , vmax = 28 . 85 umol / gdw / h and k = 1 . 21 for the high and low affinity systems respectively . it proved that naci stress could induce the high affinity system of k + uptake and enhanced the affinity of the high affinity system for k + 另一个是不饱和的低亲和k ~ +吸收系统，其一级反应常数k为1 . 21 ，这说明nacl胁迫下，碱蓬的低亲和k ~ +吸收系统受到抑制。
2 . 2 effect of salt treatment on osmotic potential of cell sap of leaves 2 . 2 . 1 effect of naci treatment on osmotic potential of cell sap of leaves due to plants " obtaining a great deal of ions , the osmotic potential of naci treatment decreased with the increase of nacl concentration in medium 2 . 2盐处理对碱蓬幼苗叶片细胞汁液渗透势的影响2 . 2 . 1naci处理对碱蓬幼苗叶片细胞汁液渗透势的影响naci处理下，植物吸收了大量的无机离子，使叶片细胞汁液的渗透势迅速下降，并随着盐浓度的升高下降的程度逐渐增大。
These results indicated that 30 mm 3 - at is sufficient to inhibit leaky expression from hiss , and the dual reporter strains could be used to assay the interaction between gcc box and its relevant factors . ( 2 ) in order to analyze the interactions between gcc box and jerp1 / 2 / 3 / 4 , four different pb42ad ( separately containing jerf1 / 2 / 3 / 4 cdna ) were transformed in the dual r （ ） naci对jerfi 2的诱导表达与meja和et有相同的增强趋势，但naci对jerfi的诱导表达逐渐增强，在维持几小时的高水平稳定表达后逐渐下降；而jerfz在1小时后就维持长时间的高水平表达，表明两者在番茄体内的应答干旱刺激方面作用可能有差异。
Effects of diverse environmental factors on the growth rate ( od4oo ) and nitrogenase activity ( ara ) of the strain w12 hi nitrogen - free culture were investigated in our experiments . the results implied that the strain w12 could easily adapt to different cultural conditions : it could use various carbon sources ( especially glucose , sucrose , malic acid , mannitol ) , propagate quickly and fix nitrogen at a temperature range of 15 ? to 40 ? and at 25 - 35 ? for optimum , at a ph range of 4 to 8 . 5 , at a saline concentration range of 0 . 01 % to 1 . 5 % ; low nlv " concentration had little effect on its nitrogenase activity . ara could also be detected when it grow in the culture media with 5mmol / l ntv " W12菌株对环境因子的适应性研究：无氮培养条件下，测定温度、碳源、酸碱度、渗透压对w12生长及固氮能力的影响，结果表明，在15 - 40下均能生长并表达固氮酶活性，其最适生长及固氮的温度为25 - 35 ；能利用葡萄糖、蔗糖、苹果酸、甘露醇等多种碳源生长并固氮，当培养基中同时存在蔗糖和苹果酸时，细菌生长和固氮活性最强；在偏酸和偏碱的条件下( ph4 . 5 - 8 . 5 )均能保持较强的生长势和较高的固氮酶活性，并能通过调节自身代谢平衡并适应环境的酸、碱性变化，使培养液趋于中性：能耐受较高的渗透压，培养液中卜、 5 naci浓度对其生长和固氮酶活性影响不大，当naci浓度升至2时，菌株的生长势及固氮酶活性才有所下降：低浓度的铰对其固氮酶活性影响不大，在0
Through the flux / retention experiments it was shown that when the applied pressure rises , both volume flux and rejection increase , too ; and that the higher the feed salt concentration , the lower rejection and volume flux . the charged mosaic membranes could permeate mono - valent and bi - valent inorganic salts , but reject the low - molecular - weight organics . furthermore , sem was used to observe the surface and the cross section of the composite membrane 另外，膜性能表征结果显示:随着操作压力的增加，膜通量及膜对电解质的截留率均趋增加;而随着原料液浓度的增加，通量和截留率都有所降低;膜对低分子有机物和无机电解质混合体系(如:亚硝基红盐与naci混合体系;蔗糖与nazso ;混合体系等)的选择性较高，能实现其有效分离。
