root hair [植] 根毛 ; 根须
root hair zone 根毛区 ; 根毛层
root-hair region [植] 根毛区
root hair formation 根毛形成
old root hair 老的根毛
hair root [组织] 毛根 ; 须根 ; [植保] 发根 ; 毛状根
The number of the root hair of the legume had no close relation to the nodulation.
2．根毛的多少与豆科植物是否结瘤没有十分密切的关系。
参考来源 - 豆科树种根部解剖结构和化学物质与结瘤的关系The Rhizobium lipochitooligosaccharide nod factors are external signals which elicit various physiological responses on the roots of host plants, such as root hair cells deforming, cortical cells redividing to form nodule primodium.
结瘤因子是根瘤菌分泌的寡糖，它作为外在信号，诱发宿主植物根部各种生理反应，引起根毛变形，诱导皮层细胞分裂，形成根瘤原基。
参考来源 - 根瘤菌结瘤因子的结构和功能·2,447,543篇论文数据，部分数据来源于NoteExpress
以上来源于: WordNet
N any of the hollow hairlike outgrowths of the outer cells of a root, just behind the tip, that absorb water and salts from the soil 根毛
But the more vacuolation of epidermis and cortex appeared in root-hair region.
但表皮和皮层细胞直到根毛区才高度液泡化。
These produce oil which flows along the length of the hair and the health of the root determines the overall health of the strand of hair.
这些会分泌油脂，油脂顺着头发流动，而发根的健康程度决定了该缕毛发的总体健康。
As you can see, along the length of the hair, there are three main parts called the bulb, the root and the shaft.
如你们所见，顺着头发的长度可以分为三个主要部分，分别是毛囊、毛根和毛干。
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