器官

32P isotope tracing technique was used in this study,and the results indicated that phosphorus stored or pre-existed in roots would be remobilized in maize under phosphorus deficiency from root cortical cells with lysis to shoot mostly rather than root apex during aerenchyma formation.

Kraus等的试验表明玉米根系从土壤中吸收的32P可在根皮层内保留15 d，之后逐渐减少[2]。这意味着与叶片的情形相似，根内也进行着磷的活化和再运转。当植物处于磷胁迫下时，根系吸收的磷素远不能满足植物各器官生长发

The results showed that it adapted to saltmorphic circumstances through the following characters: A lot of aerenchyma existed in the vegetative organs;Phellem highly expanded in roots;thick cuticula;more mucilage cells and aleurone grains in parenchyma of roots and stems;A lot of water storing...

结果表明，不同生态环境中生长的马齿苋解剖结构显著不同，盐生马齿苋具有适应盐渍环境的结构特征，这些特征表现为：营养器官通气组织发达；根的次生结构中木栓发达；根、茎的薄壁组织中含有大量的黏液细胞和糊粉粒；叶片表皮的角质膜厚；叶肉中含晶细胞、叶绿体及贮水组织丰富；而这些特征是黑土地上生长的马齿苋所不具备的。

During the process of long-time adaptive evolution, wetland plants adopted a series of special strategies to acclimate to salt stress. The main strategies are: 1 life history adjustment, e. g., to adjust seed germination time, implement seed dormancy and viviparity, and change reproductive manner to escape from direct salt stress, 2 morphological adjustment, e. g., to adjust biomass allocation pattern, age stem, defoliate, and carnify vegetative organs to isolate the redundant Na(superscript +) to the inactive-metabolism shoots or exclude the Na(superscript +)from tissues; 3 anatomic adjustment, e. g., to sink stoma, develop aerenchyma, and thicken cuticle and phellogen to maintain normal photosynthesis and respiration; 4 physiological and biochemical adjustment, e. g., to exclude and excrete salt, compartmentalize ions, adjust osmosis, do selective absorption, regulate hormones, and induce antioxidative enzymes to maintain the osmotic equilibrium and eliminate the active oxygen in cell; and 5 molecular level adjustment, e. g., to start up many salt-induced genes to regulate the metabolic responses to salt stress.

在长期的适应进化过程中，湿地植物形成了多种适应盐胁迫的策略，主要有：1生活史方面，植物可通过种子萌发时间的调整、种子体眠、胎生、繁殖方式的改变等逃避盐度的直接伤害；2形态学方面，植物可通过生物量分配模式的调整、茎的老化、落叶及营养器官的肉质化等将多余的Na隔离到代谢不活跃的茎中或将其排出体外；3解剖学方面，植物可通过气孔下陷、发达的通气组织、增加细胞木栓层、角质层及栅栏组织的厚度等以维持植物正常的光合作用和呼吸作用；4生理生化方面，植物可通过离子区隔化、拒盐、泌盐、选择性吸收、渗透调节、激素调节及抗氧化物酶的诱导等来维持细胞内正常的渗透压，清除胞内活性氧分子；5分子水平方面，植物可通过多种与盐胁迫相关的基因来调控细胞内的多种代谢反应。

Oxidative damage to body tissues and organs is thought to be one of the major causes of ageing.

对身体组织和器官的氧化损伤被认为是衰老的最主要原因之一。

The change in the aggregate amount of iodine, thus the change in tissue perfusion amount.

其变化反映的是对比剂在该器官中浓度的变化，即碘聚集量的变化，从而反映了组织灌注量的变化。

The heart,liver,spleen,lung,kidney,stomach and intestines of one agonal Cistoclemmys flavomarginatas were examined under transmission electron microscope.The results showed that a kind of short-stick bacteria were detected in heart,liver,spleen and kidney.

利用电子显微镜，对一只濒死黄缘盒龟的心、肝、脾、肺、肾、胃和肠道进行了检查，在心、肝、脾、肾均发现一种短杆状细菌感染，受染器官均出现明显的病理变化，如线粒体、高尔基体和内质网均肿大变形。

Biology An air-filled sac or structure that aids in the flotation of an aquatic organism.Also called air bladder , air vesicle

气囊：水生动植物器官中用来帮助飘浮用的充满气体的囊或结构也作 air bladder ， air vesicle

It is capable of air-breathing, thanks to an auxiliary respiratory organ, and can withstand very poor water conditions, making it an easy fish to keep in the aquarium.

它有空气呼吸的能力，因为有能辅助呼吸的器官，并能承受恶劣水环境，使它成为一个容易生活在在水族馆的鱼。

An air-filled sac or structure that aids in the flotation of an aquatic organism.

气囊水生动植物器官中用来帮助飘浮用的充满气体的囊或结构

In albuminous seed s, it remains as a permanent storage organ of the mature seed

在有胚乳的种子中，它保留作为成熟种子中的永久贮藏器官。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。