bundle-sheath

常见例句

Bundle sheath The ring of parenchymatous or sclerenchymatous tissue, usually one cell thick, that surrounds the vascular bundle in an angiosperm leaf.
维管束鞘：在被子植物叶中，围绕维管束的通常是一层薄壁或厚壁细胞。
The micrib belonging to bicollateral bundle is well developed.The bundle sheath is composed of idioblasts.
主脉发达，有异细胞组成的维管束鞘，具双生韧皮部。
The vascular bundle consists of vascular bundle sheath,xylem,phloem and big parenchymatous cells.
维管束由维管束鞘、木质部、韧皮部和大型薄壁细胞组成。
Palisade tissue is rich in saliferous vacuoles, while vascular bundle sheath is obvious.
栅栏组织富含含盐液泡泡，维管束鞘明显。
The cells of the bundle sheath that surround the vascular tissues are large and contain specialized elongated chloroplasts that do not contain grana, but form starch grains.
它的特点为：围绕在维管组织外层的维管束薄壁细胞较大，并含有较大的叶绿体，这些叶绿体中不含基粒，但形成淀粉粒。
The midvein bears three bundles.The veinlet bears one bundle sheath on the outer layer, with the typical feature of C4 pants.
中脉具3个维管束，小脉外具一层维管束鞘，具有典型的C4植物特征。