筛胞

The pores are lined with callose, and allow cytoplasmic strands to pass from one sieve cell to the next.

孔与孔之间列成直线由胼胝质联系，其内允许细胞质细流从一个筛胞通向另一个。

The immunoblotting of hexose transporter detected a 52 kD polypeptide for hexose transporter, and moreover, the apparent amount of hexose transporter also increased with fruit development.

载体蛋白可能是在具有完整细胞功能的伴胞中合成的，而后通过胞间连丝运输到去核的筛分子中。

Different biological and ecological characteristics, virulence, sporulation, conidia bourgeon, Protea-Bse activity leve and colony growth of 6 strains of Beauveria bassiana were measured respectively. The results were calculated by grey relational analysis and the optimum sequence was built from the professional comparison of each strain's characteristics. Two strain's have a potential of appling in mass production, BD-B015 and BD-B038 were abtained. The revisory mortality to Laphygma exigua Hubner were 88.33% and 86.70%.The infected rate were 86.67% and 85.27%.

测定初筛获得的6个球孢白僵菌菌株的毒力、产孢量、萌发率、胞外蛋白酶活性及菌株生长速度等多个生物、生态学指标，从专业角度构建最优序列，经灰色分析和不同菌株毒力效价显著性比较，筛选出了两株具有较大生产潜力的优良菌株BD-B015和BD-B038，对甜菜夜蛾的校正死亡率分别为88.33%和86.70%，僵虫率分别为86.67%和85.27%。

Then one bacteria and one fungus were identified. The results showed that the bacteria is Cellulomonas, named LBT2-8 and the fungus is Trichoderma, named MJ1. The degradation ratio of LBT2-8,MJ1 and Trichoderma viride3.3711 were determined.

对获得的细菌和活力最高的霉菌进行鉴定，所筛细菌属于纤维单胞菌属，命名为 LBT2-8；霉菌属于木霉属，为绿色木霉，命名为 MJ1。

Then one bacteria and one fungus were identified. The results showed that the bacteria is Cellulomonas, named LBT2-8 and the fungus is Trichoderma, named MJ1. The degradation ratio of LBT2-8,MJ1 and Trichoderma viride3.3711 were determined.

对获得的细菌和酶活力最高的霉菌进行鉴定，所筛细菌属于纤维单胞菌属，命名为 LBT2-8；霉菌属于木霉属，为绿色木霉，命名为 MJ1。

Six bacteria and five mildews have been separated from 119 strains, wliich grew well on the culture media contained lignin. The result of taxonomic identification is that XI, X2 and X3 belong to Pseudomonas, X4 and X5 belong to Xanihomonas, X6 belongs to Mycoplana. A preliminary study has been carried out on the capacity of lignin degradation of the 6strains of bacteria, and strains X2 and X4 were chose to carry out the experiments. The most favorable temperature for the 2 strains is 30癈, and the pH is 7; After being treated by ultraviolet rays, activity of all the three kinds of lignin-degrading enzyme produced by the strains can be increased greatly, the bacteria increasing rate is remarkably improved.

从119个菌株中分离筛选出了6株细菌和5株霉菌，它们可以在含有木质素的培养基上良好生长：细菌分类学鉴定结果为X1、X2和X3：假单胞菌属，X4和X5：黄单胞杆菌属，X6：枝动杆菌属；对6株细菌降解木质素性能进行了初步的研究，选定X2和X4为实验用菌种，两株菌适宜的生长温度为30℃，最适初始pH值为7；经紫外线照射诱变法处理，可使它们产生的三种木素分解酶活性均有明显的提高，细菌增长速率比诱变前明显提高。

These two mutants were prototrophic type and could cause hypersensitive reaction on tobacco leaves.However,their virulence decreased greatly in comparison with wild type.

经SDS-PAGE电泳，筛选出2个胞外蛋白减少9种的突变株PM2644和PM239，其可以引起烟草叶片典型的过敏性反应，致病力比野生型菌株显著降低，皆为原养型菌株。

A wild lipase-producing strain was isolated from the soil pretreated by Jatropha curcas seed powder with Jatropha oil as sole carbon source and identified as Pseudomonas sp.

以麻疯树油为唯一碳源，从以粉碎的麻疯树种子处理过的土壤中分离筛选出1株脂肪酶活性较高的菌株，初步鉴定为假单胞菌属。

The MSDs assemble to form a low conductance (6-10pS) anion-selective pore with deep intracellular and shallow extracellular vestibules separated by a selectivity filter.

MSDs构成一个低电导(6~12pS)的阴离子选择性孔道，其形状如同不对称的沙漏，胞外小胞内大，狭窄部分为离子筛。

One strain Bacillus badius was identified from oil-containing wastewater. Our studies provide a basis for investigating the role of Bacillus badius in oil degradation and its mechanisms as well.

从含油脂废水中筛选出1株栗褐芽胞杆菌，为下一步实验证实其分解油脂的作用和机制奠定了基础。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。