root hair中文什么意思

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用"root hair"造句

根毛

root: vi. 〔美俚〕应援，声援；支持，赞助；欢呼，喝彩。
hair: n. 1.〔集合词〕毛发，头发，汗毛。 2.毛状物；毛状 ...
hair root: 毛根; 须根
average root hair length: 根毛平均长
bending or curling of the root hair: 根毛卷曲

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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
其中转化毛状根的频率为53 . 8 ，毛状根呈密集丛生状、多分枝，被大量白色细绒毛。
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10mg l浓度组，幼苗根系粗而短，根毛稀少或没有，尤其是nap处理的幼苗70以上根发生腐烂发黑，其余亦处半腐烂状况。
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
结果表明：气生不定根具有以下结构特征和发育特点： ( 1 )根为二原型，侧根正对着木质部发生； ( 2 )幼根内皮层细胞具凯氏带加厚，维管柱内紧挨中柱鞘内侧具有2 ~ 4层大型薄壁细胞； ( 2 )根中无髓和树脂道； ( 4 )次生结构发生于根毛区，维管形成层由初生木质部和初生韧皮部之间的薄壁细胞转化形成； ( 5 )中柱鞘和栓内层细胞富含单宁类物质； ( 6 )次生韧皮部有石细胞，次生木质部射线发达。