查询词典 stoma

We studied the optimum medium and hormone combination of callus induction from cotyledons, subculture of callus, shoot regeneration from callus, shoot-extension induction, root induction and identified the chromosome number of the plantlet. The results showed that: MS+2,4-D 2.0mg/L+KT 0.5mg/L, MS＋2,4-D 2.5mg/L＋KT 0.5mg/L, MS+2,4-D 0+KT 1.0mg/L, MS+KT 0.5 mg/L and basal MS medium. One plantlet among twenty two was determined as a tetraploidy based on the plant morphology, observation of the leaf stoma and chromosome number of the root, other two plantlets represented morphological variation.

结果表明，诱导章丘大葱子叶产生愈伤组织、愈伤组织的继代培养、愈伤组织芽分化、芽点的伸长及诱导生根的最佳培养基及激素配比分别为：MS+2，4-D 2.0mg/L+KT 0.5mg/L、MS＋2，4-D 2.5mg/L＋KT 0.5mg/L、MS+2，4-D 0+KT 1.0mg/L、MS+KT 0.5mg/L和MS基本培养基；试管苗经驯化移栽后，共有22株成活，成活率为92%，对成活的再生植株进行形态学、叶片气孔及根尖染色体鉴定表明，共有3株发生变异，其中2株为外部形态上的变异，而另一株为染色体的加倍变异。

Each stoma is surrounded by two crescent-shaped GUARD CELLS, attached to each other at their ends, which regulate the opening and closing of the pore by changes in their turgidity.

保卫细胞可以因为自身紧张度的改变而规律性的开闭。

Although some people can be lucky the enroach on that escapes whelk, but the acne problem that produces because of skin metabolism, or it is male friend's general wool stoma bulky symptom, do not have a law to let a person stand by a bit scrutiny really your face.

有些人虽然能幸运躲过青春痘的侵害，但是因肌肤新陈代谢所产生的粉刺问题，或是男性朋友普遍的毛细孔粗大症状，确实没法让人靠近一点细看你的脸。

This paper made a systematic research on Lonicerafulvotomentosa Hsu et S.C. Cheng, which grows well inkarst areas, from its biological characteristics, such asmorphology, growth and physiology. The main conclusions asfollows:(1)From the viewpoint of morphological anatomy, it hastypical xerophyte structures such as well-developed epidermisand tissues that transport water effectively, small leaf area,dense floss under the leaf surface, high stoma density, thesmall opening degree, thick cuticle, well-developed xylem andpalisade tissues, etc. The pollen of L. fulvotomentosa isseems to be spherical, and has 3 grooves, much bulge on theepidermis evenly. The shape of pollen is an important featureon taxonomy. The ripe fruit has from 1 to 18 seeds, some fruitbranch has 135 berry, its diameter is up to 0.8 centimeter.(2)From the viewpoint of growth, L.

本文从形态解剖、生长发育的节律、光合生理特性以及种子萌发生理等生物学特性方面对喀斯特适生经济植物黄褐毛忍冬进行了较为系统的研究，得出以下结论：(1)在形态解剖上，黄褐毛忍冬根茎中含有发育良好的周皮和输导组织，导管密度大，横截面宽，周皮的形成具有节制蒸腾、通气作用和保护组织免受外界环境影响的作用，宽的导管对水分的输导效率高；叶片密被绒毛，面积较小，气孔密度大、开度小，厚的角质层和发育良好的木质部和栅栏组织等是典型的旱生结构；黄褐毛忍冬花粉近球形，具3 孔沟，表面具均匀分布的小刺，刺间具网状纹理。

The surgically created stoma, which for example allows the evacuation of urine or faeces, should also be considered as abody orifice.

外科 遗留下来的孔道，比如，排尿，排粪孔也可以被视为是属于这条规则所定义的人体孔道。

The results show that the leaf of Alnus cremastogyne is typical of bifacial leaf, the structural parameters of leaf among clones are very significant difference (P.01), of which the cuticle thickness varies most and the stoma density takes the second place, but cell tense ratio and spongy ratio and vein protuberant degree are comparatively stable.

结果表明，桤木叶为典型的异面叶，各无性系间叶片结构指标均存在极显著差异，其中角质层厚度变异最大，气孔密度次之，而叶片组织结构紧密度、叶片组织结构疏松度和叶脉突起度等比较稳定。

The new progresses:(1)the anatomic studies on the leaves, stems and cones of 25 species Late Mesozoic conifers, particularly those very similar to the living genera, such as Athrotaxites, Torreya, Taxus, Cephalotaxopsis, Cunninghamia and the cheirolepidaceous conifers, such as Brachyphyllum and Psudofrenelopsis;(2) the distribution and evolution of the Late Mesozoic conifers, the relationship between the concentration of CO2 of the atmosphere and the stoma index of the gymnosperms during the Middle Jurassic and Early Cretaceous;(3) the characters, compositions and ages of the Jurassic floras of Yabula Basin, and Erlian Basin of Inner Mongolia and the Early Cretaceous floras and Jiuquan basin and Beishan Area of Gansu.

对12属25种中生代松柏类的枝叶、球果及茎干化石进行了解剖研究，特别是对与现生松柏类相似的Athrotaxites， Torreya， Taxus， Cephalotaxopsis， Cunninghamia及可能属于掌鳞杉科的Brachyphyllum， Psudofrenelopsis等的研究较为深入，发现了4个新种；总结了中国晚中生代松柏类的特点及分布，讨论了重点属的起源和演化问题；研究了中侏罗世、早白垩世及现代裸子植物包括松柏类气孔与大气CO2浓度关系，发现气

Results:The clinical manifestation of postoperative gastroparesis was abdominal distention,vomit,no obvious celiodynia and normal gas discharge by anus in majority patients,weak enterocinsia was shown by barium meal X-ray of alimentary canal opacification,and unobstructed anastomotic stoma shown by gastroscopy.52 patients relieved from gastrointestinal decompression,nutrition support,water-electrolyte metabolism balance,gastrointestinal motility medicine and combined integrated traditional chinese medicine and western medicien treament.

结果：术后胃瘫的临床表现主要为腹胀、呕吐、无明显腹痛，大多数患者排气正常，消化道X-ray钡餐造影提示胃蠕动差，胃镜检查吻合口通畅。52例患者进行胃肠减压、营养支持、维持水电解质代谢平衡治疗，并应用促进胃肠蠕动的药物及中西医结合治疗等非手术治疗后，均缓解。

Results:the clinical manifestation of postoperative gastroparesis was abdominal distention,vomit,no obvious celiodynia and normal gas discharge by anus in majority patients,weak enterocinsia was shown by barium meal x-ray of alimentary canal opacification,and unobstructed anastomotic stoma shown by gastroscopy.52 patients relieved from gastrointestinal decompression,nutrition support,water-electrolyte metabolism balance,gastrointestinal motility medicine and combined integrated traditional chinese medicine and western medicien treament.conclusion: diagnosis of postoperative gastroparesis mainly depends on clinical manifestation,gastroscopy has significant value in diagnosis of grastroparesis.when mechanical is excluded,non-surgical treatment way should be adopted and would have satisfactory therapeutic effect.

结果：术后胃瘫的临床表现主要为腹胀、呕吐、无明显腹痛，大多数患者排气正常，消化道x-ray钡餐造影提示胃蠕动差，胃镜检查吻合口通畅。52例患者进行胃肠减压、营养支持、维持水电解质代谢平衡治疗，并应用促进胃肠蠕动的药物及中西医结合治疗等非手术治疗后，均缓解。结论：手术后胃瘫的诊断主要依据临床表现；胃镜检查有其重要价值；排除机械性梗阻后，采取非手术治疗，可取得满意疗效。

The changeable regularity and adaptation in different stages of photosynthetic rate, stoma conductance and intercellular CO2 concentration of Cynanchum komarovii that was planted in PVC tube were studied under water stress.

采用PVC管种植模拟土壤干旱的方法，研究了牛心朴子在水分胁迫下光合速率、气孔导度、胞间CO2浓度、叶绿素荧光的变化规律及不同生育期适应性表现。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。