根条件

The dissertation focuses on the breeding of Rhizopus chinensis 12# producing a fibrinolytic enzyme, optimization of solid-...

本论文对产纤溶酶的菌株根霉12#进行了诱变育种，优化了根霉12#产纤溶酶的固态发酵和液态发酵条件，建立了根霉纤溶酶制备分离纯化的方法并进行了优化，研究了根霉纤溶酶的性质。

At the 80% field capacity, root cutting did not significantly affect WUE for grain yield of millet; at the 50% field capacity early moderate root cutting significantly improved the WUE for grain yield, while the late root cutting did not show obvious improvement.

在高水条件下，伤根处理对谷子籽粒产量WUE影响不显著；而在低水分条件下，前期适度伤根能使谷子籽粒产量WUE显著提高，而后期伤根处理的籽粒产量WUE提高不显著。

The results showed that "Green Drought Resistance agent NO.1, NO.2 and NO.3" harmonized ear number, spike number and 1000-seed weight of winter wheat in dry land, they have good yield-improving effects. The drought-enduring experimentation showed that with the raising of the PEG density, the restrain that burgeon and rootage got on each treatment were more obvious. The drought resist of burgeon ratio, length of bud, rootage ratio, number of root and length of root treated by GDR1 was better than check's.

结果表明：GDR1号、GDR2号和GDR3号抗旱剂较好地协调了旱地冬小麦的穗数、穗粒数、千粒重，具有较好的产量效应；耐旱性试验表明，随着PEG浓度的增高，各处理发芽和生根受到抑制作用越明显，GDR1号处理的发芽率、芽长、生根率、根数和根长的抗旱性优于对照；不同土壤水分条件下绿色抗旱剂GDR1号的出苗率、幼苗和根系生长与不同PEG浓度条件下的处理结果相一致。

In the low B condition of the soilless culture, rapeseed seedlings were short of B, the seedlings were short and the leaves were malformed and the weight of the shoots decreased, the branch roots were fewer and snuff color, the weight of roots decreased, and the length of root and the ratio of shoot/root decreased, too. However, the high B- efficiency type of rapeseed had the a great ability to the low B stress, the growth of shoots and roots were better than the low efficiency, and the B concentration range of the rapeseed varieties which responded to the B scarce was 0.001 mg/L to 0.01 mg/L.

营养液培养条件下，苗期缺硼，甘蓝型油菜植株瘦小，叶片皱缩，地上部生长量下降；侧根少且呈现黄褐色，根重、根体积、根长以及根冠比下降；高效品种具有较强的耐低硼胁迫的能力，表现为同等缺硼条件下，对高效品种地上部和根系生长的抑制作用都相对较小，且品种间对缺硼反应差异最大的硼浓度范围为0.001mg／L—0.01mg／L。

That is, the appropriate electric field should be a uniform electric field in the strength of 1.0V/cm with the reversal time interval of 10 min in rhizosPHere soil; while the appropriate electric field should be a uniform electric field in the strength of 1.5V/cm in non-rhizosPHere soil.

施加均匀场1.0V/cm的同时，每隔10min切换极性，是土壤根际微生物群落在电场作用下比较合适的电场条件；而对土壤非根际微生物来说，施加均匀场1.5v/cm是相对比较合适的电场条件。

In addition, AM fungi from a wide range of environmental conditions (originally isolated from north, central and south China) were used to study the ecological adaptability of AM fungi and the influence of edaphic conditions on AM fungal growth and metabolic activity.

丛枝菌根共生体由宿主植物和真菌共同组成，菌根真菌的生长、代谢活性、菌丝分布以及生态适应性等特征不但与菌根效应、菌根真菌的生态功能密切相关，而且受到宿主植物和土壤条件的影响。

This conclusion is based on three groups of experiments with detached root tips of wheat seedlings: By following the time course changes of NO synthase , superoxide synthase and ABA accumulation under dehydration stress, we found that ABA accumulation was preceeded by the changes of NOS and superoxide synthase. ABA accumulation induced by dehydtrion stress and osmotic stress can be blocked by NO scanvegers and NOS inhibitors, while only dehydration stress-induced ABA accumulation can be blocked by ROS scanvegers. Exogenous applied NO or ROS induced ABA accumulation in root tips of wheat seedlings, and synergistic effects were found between NO and NO. The in planta expereiments also proved that ROS and NO are involved in water stress-induced ABA accumulation.Ⅱ.

证据主要来自以离体根尖为材料的实验：(1)通过检测干旱胁迫下小麦根尖NOS活性、O〓合成酶活性和ABA积累的时间变化进程，发现ABA积累滞后于ROS和NO的变化；(2)抑制剂实验表明，NO清除剂和NOS抑制剂可以抑制自然干旱胁迫及渗透胁迫诱导的小麦根尖ABA积累，ROS清除剂抑制自然干旱胁迫诱导的ABA积累而不抑制渗透胁迫诱导的小麦根尖ABA积累；(3)在非胁迫条件下施加外源的ROS或NO可以诱导小麦根尖积累ABA，ROS和NO之间具有协同作用。

METHODS: Forty extracted teeth with single straight canals and completed foramina were selected.

选择根尖孔发育完成的单根管离体牙40个，在生理盐水琼脂模型上，分别在根管内灌注25g/L次氯酸钠液、生理盐水、170g/LEDTA、30mL/L过氧化氢液和蒸馏水，在根管干燥条件下，用Root ZX测量牙齿操作长度，分析根管内容物对Root ZX测量值的影响。

The results showed that there were significant differences among fungal species or ecotypes in all above index,which varied with soil types.First,six fungi could colonize maize root on three soils,and the fungal colonization rate was higher on soil collected in the region that had been screened for cinnamon soil and brown soil.

结果表明，6种菌株在上述指标上存在显著的种间或生态型差异，土壤与菌株间存在显著的交互作用。6种菌株在3种土壤上都能与玉米形成菌根，在褐土和棕壤上大多数菌株在分离地所在地区土壤类型上的菌根侵染率较高，说明其对该土壤条件的适应性较强；在红壤强酸性土壤条件抑制了菌根真菌的侵染。

Study on the ecological effect of rice rhizosphere microbes under three water regimes and two nitrogen application levels was conducted in 2005 in pot experiment.

研究了3种水分模式（干旱交替型，浅水层连续灌溉型和控水模式）及分次施氮条件下，施氮对水稻根际土壤微生物生态效应的影响，结果表明：水稻根际土壤微生物生态效应，不仅仅受到水分条件和施氮的影响，还受到水分条件和施氮的交叉影响。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。