木质部在维管束植物中的起支撑作用和输水作用的组织，主要由管胞和管道组成；
The supporting and water-conducting tissue of vascular plants, consisting primarily of tracheids and vessels; woody tissue.
栅栏组织富含含盐液泡泡，维管束鞘明显。
Palisade tissue is rich in saliferous vacuoles, while vascular bundle sheath is obvious.
包括根或茎的维管组织及相关薄壁组织，若有维管束鞘和内皮包被则这二者也属于中柱结构。
Stele the vascular tissue and associated parenchyma tissue and (if present) the surrounding pericycle and endodermis of a stem or root.
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