次生组织

匍匐茎中的维管组织仅在先端约1mm处，为分离的束状结构，很快连接成环状，类似次生维管组织。

The vascular tissue of stolon on top only about 1 mm is seperated bundles . It forms quickly as circular , look like secondary vascular tissue .

根次生维管组织发达。

The secondary vascular tissues of its roots appeared well developed .

次生维管组织发达，且多具异常结构；

Transmitting tissue was well developed ;

次生维管组织为大黄多糖贮藏和积累的主要组织。

The secondary vascular tissues are the chief tissues that accumulate and store rhubarb polysaccharide in rhizome .

次生维管组织由维管形成层发育而来，仅存在于有次生加厚的植物中。

Secondary vascular tissue , found only in plants with secondary thickening , develops from the vascular cambium .

处在酸性垒的原植物次生木质部组织被二氧化硅替换而成硅化木。

The secondary xylem of the original plants in local acidic environment was replaced by silica and turned into fossil woods .

结果表明：不同直径大小的横走侧根均由周皮、次生维管组织和四原型的初生木质部构成。

The results showed that all the cross branch roots of different sizes consisted of periderm , secondary vascular tissue and tetrarch primary xylem .

众所周知，树木次生维管组织的发育具有内在的节律性，与此同时维管组织的细胞内含物也会发生动态变化。

It is well known that the developmental inherent rhythm occurs during the development of secondary vascular tissue . Synchronously , the cell ergastic substance shows dynamic changes .

但在以后的发育过程中，木栓形成层产生了多层栓内层薄壁细胞，维管形成层则产生了大量高度薄壁组织化的次生维管组织，从而形成了肉质膨大的块根。

The main cause of root tuber expanding is that phellogen produces many layers of phelloderm parenchyma cells and vascular cambium produces a lot of secondary vascular tissue that consists of parenchyma .

热带落叶树降香黄檀次生韧皮部薄壁组织细胞超微结构的季节变化

Seasonal Ultrastructural Changes of Secondary Phloem Parenchyma Cells in a Tropical Tree , Dalbergia odorifera

具有次生结构，次生保护组织为周皮。

It had secondary structure and the secondary protective tissue was periderm .

华北地区上古生代煤系有机质热演化与二次生烃探讨丹参次生代谢物的组织化学定位及生物运转探讨

Discussion on thermal evolution and secondary hydrocarbon generation of organic matter from Upper Paleozoic coal measures in Huabei area

根的次生结构包括周皮和次生维管组织两部分。

The secondary structure included periderm and secondary vascular tissue .

次生生长后产生周皮、皮孔和次生维管组织。

Periderm , lenticelle and secondary vascular tissue in the gynophore are produced due to its secondary growth .

结果表明：桤木茎的次生构造从外至内由周皮、皮层和次生维管组织3部分组成。

The results show that the secondary structure of alder stems were composed of three parts from periphery to center on the cross section , e.

因此，北柴胡根的次生结构从外到内由周皮、中柱鞘薄壁细胞环和次生维管组织组成。

Therefore , the secondary structure included periderm , pericyclic parenchyma tissue and secondary vascular tissue from the outside to the inside of taproots of Bupleurum chinense DC .