Vascular cambium The ring of CAMBIUM formed by the activity of the interfascicular cambium and the intrafascicular cambium that gives rise to secondary xylem and secondary phloem.

由于维管束内形成层和束间形成层的活动产生的环状形成层结构，它的分裂活动可以形成次生木质部和次生韧皮部。

The callus originated from several parts, but mainly from cambium .

愈伤组织是多起源的，但主要源于形成层。

The callus originated from several parts , but mainly from cambium.

愈伤组织是多起源的, 但主要源于形成层.

The callus originated from several parts , but mainly from cambium .

愈伤组织是多起源的， 但主要源于形成层。

The part of the VASCULAR CAMBIUM within the vascular between the xylem and phloem.

是位于木质部和韧皮部构成的维管束内的一部分维管形成层。

Results identified that the adventitious root primordia originated from the vascular cambium cells.

结果表明：试管苗不定根的根原基发生于形成层。

The secondary xylem of root is well developed, and there is supernumerary cambium around the vessels.

块根的次生木质部发达, 导管周围存在额外形成层.

Interfascicular cambium A single layer of actively dividing cells between the vascular bundles in stems.

束间形成层是位于茎的维管束间的具有旺盛分裂能力的一层细胞。

After vascular cambium cells divide, the progeny cells on the interior side become xylem parental cell.

维管形成层细胞分裂后，在内侧分裂出来的细胞成为木质部的母细胞。

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

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.