叶状体
- 与 叶状体 相关的网络例句 [注:此内容来源于网络,仅供参考]
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It contains quadratic photosynthetic chamber and columned soil fixing body, wherein soil fixing body of canopy leaf chamber bottom set with knob basal portion being corrugation notch, capable of easy inserting amboceptor in soil to form inclosed canopy leaf chamber, amboceptor upper port inosculation with photosynthetic chamber lower wall round opening to make canopy leaf chamber intracavity forming one integral, photosynthetic chamber upper wall sealed by two side glue and photosynthetic film to ensure photosynthetic chamber steady light permeability, photosynthetic chamber sidewall installed one small size fan controlled by external battery and switch, fan capable of rapid making canopy leaf chamber gaseous reaching equalization.
本发明涉及一种用于测定植物冠层群体光合作用的冠层叶室,由正方形的光合室和圆柱状的土壤固定体两部分结合而成,冠层叶室下部土壤固定体设有把手,基部为波纹状切口,可以很容易地把固定体插入土壤中形成密闭的冠层叶室,固定体上口与光合室底壁的圆形开口吻合,使冠层叶室的内腔形成一个整体;光合室顶壁用双面胶和光合薄膜密封,以保证光合室稳定的透光性能;光合室侧壁内安装一个小型风扇,由装在侧壁外的电池和开关控制,风扇可使冠层叶室内的气体迅速达到平衡。
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Secondly, according to the stem and leaf anatomy, leaf epidermis, pollen morphology and floral development, it is found that there are no close relations between Acorus and Typhales, especially in the aspect of floral development. In the course of floral development of A. calamus, neither bracteloe primordium nor common primordium occurs in the whole course. Early development of the flower is strongly unidirectional. Three shield carpels develop into a pistil. In Sparganium fallax, each female flower has a bracteole. The bracteole primordium and the floral primordium originate from a complex structure. A single saccate carpel develops into a pistil. In staminate flowers, petal and stamen primordia initiate spirally.
菖蒲属与香蒲目的茎叶解剖特征、叶表皮特征、花粉特征及花器官发生特点等亦存在着明显区别,特别是花器官发生特点差异尤为显著,如菖蒲属花器官发生过程中,没有苞片原基,也不存在任何形式的复合原基,花被与雄蕊原基均以单向性方式发生,雌蕊由3心皮发育而成,具有"盾状心皮"的特点等,黑三棱属则有苞片原基发生,且苞片原基与雌花原基起源于共同的复合结构,雄花的花被原基和雄蕊原基均以螺旋状方式发生,雌蕊由单心皮发育而成,未发现有2或3个心皮原基或其痕迹的现象,体现出"囊状心皮"的特点。
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Cytopathological study on leaves of pumpkin infected with PRSV-W, WMV showed that there were large amount of inclusion in shape of pinwheel, lamina, and braid in the cells, and there were many linear virus particles fascicled or scattered in the cytoplasm, causing the cytopathological characters which was similar to typical potato virus Y .
对PRSV-W、WMV侵染的南瓜病叶的细胞病理学观察结果表明,在感病细胞中有大量的风轮状、片层状和条带状内含体,线状病毒粒体呈束状或散布在细胞质中,具有典型的马铃薯Y病毒属侵染寄主引起的细胞病理特征。
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The embryogenic cell first divided into multicellular proembryos,then globular embryoid,pearshaped embryoid,long embryoid,scutiform embryoid and mature embryoid.
胚性细胞继续分裂形成多细胞原胚,经球形胚、梨形胚、长形胚、子叶分化期到成熟胚,其发生的胚状体与单子叶合子胚形成具有相似的过程。
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Hornworts; liverworts having a thalloid gametophyte; in some classification systems included in the class Hepaticopsida.
金鱼藻;有叶状配偶体的地钱;在有些分类中,被归于苔纲中。
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Inflorescence branches, pedicels, hypanthia, and sepals sparsely subsessile glandular
花序分枝,花梗,管状体和萼片疏生近无柄具腺 2 B。 crassifolia 厚叶岩白菜
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When aborted rats in group E were treated with the dose of 50 IU/g IFN-γ, expression of TNF-αin this group was compared with the other four groups, the results were as follows: Compared with group A, the nucleus pre-opticus medialis, nucleus pre-opticus mango celluaris, nucleus periventricularis hypothalami, nucleus ventromedialis hypothalami, nucleus dorsomedialis hypothalami, nucleus arcuatus hypothalami and pars intermedia had a highly expression of TNF-α, in the other nuclei of hypothalamus, neurohypophsis and adenohypophysis, the change was not significantly, the expression of TNF-αin follicle and corpus luteum were decreased distinctly, the variation in uterus was slight and no difference was exsited; Compared with group B, the expression of TNF-αin nucleus nucleus lateralis hypothalami, nucleus ventromedialis hypothalami, nucleus arcuatus hypothalami, adenohypophysis and uterus presented a remarkable enhancement, conversely, the TNF-αexpression in the nucleus pre-opticus medialis, nucleus pre-opticus suprachiasmaticus, nucleus supra-opticus, nucleus pre-opticus mango celluaris, nucleus periventricularis hypothalami, nucleus paraventricularis hypothalami, neurohypophsis, follicle and corpus luteum had been significantly decreased; Compared with group C, the nucleus pre-opticus medialis, nucleus ventromedialis hypothalami, nucleus dorsomedialis hypothalami, nucleus arcuatus hypothalami, adenohypophysis, pars intermedia and uterus had upregulated the expression of TNF-α, however, it was decreased in the nucleus periventricularis hypothalami and corpus luteum; When compared with group D, the expression of TNF-αin nucleus lateralis hypothalami, nucleus dorsomedialis hypothalami, nucleus ventromedialis hypothalami, pituitary, follicle and ovary stroma were obviously enhanced, while in the nucleus supra-opticus and nucleus arcuatus hypothalami, the situation was definitely opposite, in the other parts, the change was not significant.
外源腹腔注射50 IU/g IFN-γ后,同A组相比:E组TNF-α免疫阳性产物在下丘脑视前内侧核、视前大细胞核、室周核、腹内侧核、背内侧核、弓状核、垂体中间部显著增高,在下丘脑其它核团、神经垂体、垂体前叶较A组差异不显著,在卵泡、黄体中阳性产物表达均较A组显著降低,在子宫中表达较A组变化不明显;同B组相比:E组TNF-α免疫阳性产物在下丘脑外侧核、腹内侧核、弓状核、垂体前叶、子宫均显著增高,在视前内侧核、视交叉上核、视上核、视前大细胞核、室周核、室旁核、神经垂体、卵泡、黄体中阳性物质表达均显著降低;同C组相比:E组下丘脑视前内侧核、腹内侧核、背内侧核、弓状核、垂体前叶与中间部、子宫均显著增高,在室周核、黄体中均显著降低;同D组相比:E组下丘脑外侧核、背内侧核、腹内侧核、垂体各部、卵泡、卵巢基质均显著增高,在视上核、弓状核显著降低,在其它部位表达变化差异不显著。
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Plants often densely pubescent, rarely glabrescent; leaf and calyx trichomes short-stalked, forked, mixed with simple ones
密被短柔毛的植株通常,很少脱落无毛;短茎,分叉的叶和花萼毛状体,与单的混合 2 L。
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The top of tumour-body formed shoot apex from bud primordium, and differentiated growing point, leaf primordium.
瘤状体顶端由芽原基形成苗端,分化出生长点、原基、叶和腋芽原基。
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This is the group of flatworms that cause schistosomiasis.
这是一团引起血吸虫病的叶状软体蜗虫。
- 推荐网络例句
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The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.
主要做了如下几个方面的工作:对伸臂位于顶部的单层框架—筒体模型进行分析,提出了等效转动约束的概念和转动约束刚度的表达式。
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Male cats normally do not need aftercare with the exception of the night after the anesthetic.
男猫通常不需要善后除了晚上的麻醉。
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Its advantage is that it can be used in smaller units.
其优点在于可以在较小的单位中应用。