它们达到复杂的形态，出现分枝，管状突起。
They attain complex morphology, appearing as branched, tubular processes.
根毛是植物特化的表皮细胞上的一些管状突起。
Root hairs are long tubular outgrowths that form on the surface of specialized epidermal cells.
根毛是由特异表皮细胞形成的管状突起，其发生发育经历三个阶段：细胞命运决定，根毛起始和尖端生长。
Root hairs are long tubular outgrowths that form on the surface of specialized epidermal cells. Their development occurs in three phases: cell fate specification, initiation and subsequent tip growth.
根毛是由特异表皮细胞形成的管状突起，其发生发育经历三个阶段：细胞命运决定，根毛起始和尖端生长。
Root hairs are long tubular outgrowths that form on the surface of specialized epidermal cells. Their development occurs in three phases: cell fate specification, initiation and subsequent tip growth.
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