root hairs造句
例句與造句
- the root hair cell wall invaginates at the point of contact .
在接觸點(diǎn)上，根毛細(xì)胞壁內(nèi)凹。 - the specialized epidermal area of the roots from which the root hairs arise is termed the piliferous layer
根毛出現(xiàn)在根表皮的特化區(qū)域，稱為根毛層。 - on the condition of flooding, the root hair of vetiver was decreased significantly and the color of root system became black
淹水條件下，香根草根毛顯著減少，根系顏色隨淹水深度增加而變深。 - the elongation cell afterwardsstarts to split up, forms the root hair, the drive pipe and so on thedifferent structure, thereupon plant's root then grew maturely
伸長(zhǎng)的細(xì)胞隨后開始分化，形成根毛、導(dǎo)管等不同結(jié)構(gòu)，于是植物的根便發(fā)育成熟了。 - absorption 1 . the uptake of liquid by cells and organs . in plants, water and mineral salts are absorbed mainly by the root hairs, just behind the root tips
吸收（作用）:1通過細(xì)胞或器官吸收液體。在植物中，水和礦質(zhì)元素主要是通過位于根尖后方位置的根毛吸收的。 - It's difficult to find root hairs in a sentence. 用root hairs造句挺難的
- the percentage of rooted leaf explants was 92.5 % 21 days after infection, but the inducing frequency of hairy roots was 53.8 % . hairy roots were highly branched and had a plenty of white root hairs
其中轉(zhuǎn)化毛狀根的頻率為53.8，毛狀根呈密集叢生狀、多分枝，被大量白色細(xì)絨毛。 - at concentration of 10mg / l, the root of k . candel seedling were wide and short, had few or no root hairs . especially for n ap, above 70 % of roots turned rotten and black, others were half rotten
暴污60d后，在10mgl濃度組，幼苗根系粗而短，根毛稀少或沒有，尤其是nap處理的幼苗70以上根發(fā)生腐爛發(fā)黑，其余亦處半腐爛狀況。 - we have observed the following characteristics of anatomical structure and development : ( 1 ) the primary roots belong to archetype and the lateral roots occur in the position toward the xylem of the vascular cylinder; ( 2 ) the root endodermis consists of thicken casparian strips, and there are from two lo four layers parenchyma cells near the pericycle; ( 3 ) the pith and resins canals are absent in the toots; ( 4 ) secondary structure occurs in the root hair zone, and vascular cambium is formed from the parenchyma cells between the primary xylem and primary phloem; ( 5 ) tanning materials are abundant in pericycle cells and phelloderm cells; ( 6 ) sclereids are found in secondary phloem, and rays are rather rich in secondary xylem
結(jié)果表明：氣生不定根具有以下結(jié)構(gòu)特征和發(fā)育特點(diǎn)：(1)根為二原型，側(cè)根正對(duì)著木質(zhì)部發(fā)生；(2)幼根內(nèi)皮層細(xì)胞具凱氏帶加厚，維管柱內(nèi)緊挨中柱鞘內(nèi)側(cè)具有2~4層大型薄壁細(xì)胞；(2)根中無髓和樹脂道；(4)次生結(jié)構(gòu)發(fā)生于根毛區(qū)，維管形成層由初生木質(zhì)部和初生韌皮部之間的薄壁細(xì)胞轉(zhuǎn)化形成；(5)中柱鞘和栓內(nèi)層細(xì)胞富含單寧類物質(zhì)；(6)次生韌皮部有石細(xì)胞，次生木質(zhì)部射線發(fā)達(dá)。