查询词典 callus

The results of the physiological and biochemical indexes in callus tissue of Poncirus trifoliata tested under calcium carbonate(CaCO3) stress indicated that except total iron content, the negative correlations among CaCO3 concentration and peroxidase activity, superoxide dismutase activity, catalase activity, active iron content, soluble protein content and callus growth were recorded.

提要测定碳酸钙(CaCO3)胁迫下枳壳愈伤组织的某些生理生化指标的结果表明：除全 Fe 含量外，CaCO3浓度与过氧化物酶活性、超氧化物歧化酶活性、过氧化氢酶活性、活性Fe含量、可溶性蛋白质含量、愈伤组织增重均呈显著或极显著负相关，与培养液pH值呈显著正相关；随着培养的进程， POD活性、活性Fe和可溶性蛋白质含量、愈伤组织增重呈降低趋势， SOD和CAT活性先升后降，含高浓度CaCO3的培养液 pH值仅在20日左右略有降低。

The friable embryogenic callus with small grains and without proembryo formation was screened in the process of continuous subcultures for 4~6 times on the medium with low content of sucrose from embryogenic cultures induced from immature embryos in litchi (Litchi chinensis Soon.). The well-scattered embryogenic cell suspensions could be rapidly established from the friable embryogenic callus in 2 liquid initial MS media respectively supplemented with 2,4-D 2 mg/L or 2,4-D 2 mg/L, KT1 mg/L and AgNO3 5 mg/L shaking at 100~120 r/min within 10-14 days.

荔枝幼胚诱导的胚性培养物在低糖条件下连续继代4~6次左右，可筛选到颗粒细小、不含原胚的松散型胚性愈伤组织；以这种松散的胚性愈伤组织作为起始材料，在附加2，4-D 2mg/L或2，4-D 2mg/L、KT1 mg/L、AgNO3 5mg/L的MS液体启动培养基上振荡培养（100~120 r/min）10~14 d，即可建立起分散性良好的胚性悬浮细胞系。

The germination test of Sporocarps of Microlepia hancei prantl had been done, the callus can be induced from the delicate stem of Microlepia hancei prantl; The inducement and proliferation medium of callus was MS＋6-BA2 mg/L+NAA0.2 mg/L;the optimal combination of hormones of buds differentiation was MS+6-BA 0.4 mg/L; the effect of MS medium in radication culture was better than 1/2MS, the roots of plants were all efficiently induced in MS medium without reference to adding IBA、NAA or IBA＋NAA, the rate of radication was high; the effect of seedling cultured in the mixture of perlite and turf soil was better than perlite、garden soil and river sands.the mixture of perlite and turf soil has the excellences such as ventilate、water conservation 、nourishment and so on,the survival rate was higher and seedling substance was also hale.

试验进行了华南鳞盖蕨孢子果的萌发试验，并利用幼嫩茎段进行诱导愈伤组织；愈伤组织的诱导与增殖培养基为MS＋6-BA2 mg/L+NAA0.2 mg/L；其芽分化最佳激素组合为MS+6-BA 0.4 mg/L；生根培养中MS基本培养基比1/2MS效果好，MS基本培养基不论附加生长素IBA、NAA或IBA＋NAA，均能有效地诱导植株生根，生根率高；假植以珍珠岩和泥炭土的混合物为基质效果优于珍珠岩、菜园土和河沙，具有通气、保水、营养等优点，假植成活率高，苗势健壮。

Histologically,the activity of cell division in scutellar epithelium and callus cluster derived from it was higher in cultivar Aikoku than Moritawase.Moreover different types of differentiation in the epithelial callus were observed,the rootlike structures and globular cell clusters with epidermislike structure were found in the calli of cultivar Moritawase and Aikoku respectively.

组织学的观察表明，Aikoku的种胚盾片上皮组织以及由上皮细胞起源的愈伤组织的细胞分裂活性高于Moritawase；而且在上述2个品种中还观察到不同的细胞分化类型，在Aikoku的愈伤组织中观察到了带有表皮状结构的圆形细胞块，而在Moritawase的愈伤组织中却观察到了根状结构。

The study on the reducing browning of callus induced from Aloe saponaria Haw indicated that: pretreatment before inoculation was useful for reducing callus browning.

对降低皂质芦荟诱导愈伤组织褐化情况的研究表明，外植体接种前进行预处理对控制诱导愈伤组织的褐化有一定的帮助。

The callus in culture with 0.5 mg/L,1 mg/L, 2 mg/L 6-BAP can only synthetize RA, while the callus with 3mg/L 6-BAP only sythetize SS.

在含有不同浓度6-BAP的培养基中培养2个月的愈伤组织都能够合成糖苷，但所合成糖苷的组分不同。

Supplemented with 5% coconut milk or 0.2% tryptone in the medium markedly promoted the hypocotyl callus growth, while 0.2% yeast extract had no important effect. Supplemented with 10% coconut milk, 2% tryptone or 2% yeast extract all inhibited the hypocotyl callus growth.

添加5％椰子乳和0.2％胰蛋白胨显著地促进生长，添加0.2％酵母提取液则未表现出显著的促进作用，而10％椰子乳、2％胰蛋白胨和2％酵母提取液均抑制愈伤组织的生长。

The study on callus of A. crenata indicated that the nitrogen source was the most important factor influencing bergenin accumulation in the same kind of callus.

对朱砂根的愈伤组织研究表明，对于同种植物的相同外植体愈伤组织，各种因素中以氮源浓度对愈伤组织中岩白菜素积累的影响最大。

Histochemical assays of GUS gene showed those resistant callus and roots from transgenic plants cultured under light were no blue-stained with X-gluc, but callus and roots after 24 h treatment of darknees and then incubated with X-gluc could present blue. Fluorimetric enzyme quantitative analyses indicated GUS expression in transgenic plants was organ specificity.

转基因抗性愈伤和转基因植株根的组织化学GUS活性检测表明，光照培养下的抗性愈伤和转基因植株根不能使X-gluc显色，而暗处理24 h后的抗性愈伤和定植后转基因植株的根能使X-gluc显色。

RESULTS:① Gross observation: At 2 weeks, there were no differences between the two groups, and the materials were connected to bone bed with fibrous tissues. At 4 and 8 weeks, there was more new callus in biologic active bone group than in biologic bone group. At 12 weeks, some bionic biphasic ceramic-like biologic active bone were absorbed and new bone regenerated in biologic active bone group, being similar to appearance of host bone, but there were few callus in biologic bone group.

结果：①大体观察：生物活性骨组和生物骨组术后2周时无明显差别，材料与骨床间为纤维组织连接。4周及8周可见生物活性骨组断端周围新生骨痂较多，将材料包绕，12周时可见材料部分吸收，新生骨长入，修复段塑型较好，基本接近宿主骨外形。12周时，生物骨组仅在骨折端有少量骨痂连接。

Continuously improve the production mechanism, to provide customers with better quality products and services.

不断的完善生产机制，给客户提供更优质的产品及服务。

B:Yes, he was the very prize-winner in the court tennis ten years ago?

是的，他是十年前的世界网球冠军。