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the marked stem cells that produced the white sectors in Figure 3 gave rise to all the different cell types that make up a leaf). Do similar mechanisms operate in plant and animal stem cells to ...
On the left, a young Arabidopsis plant ... root meristem, based on microscopy images. In the center of the root meristem, a small group of cells called the quiescent center (blue) are surrounded ...
Xylem cells transport water from the roots to other parts of the plant. Phloem cells transport sugary water from the leaves to the rest of the plant. Xylem cells run inside stems of plants from ...
Some upright growing plants can also be started from stem cuttings. New roots are formed at the joints or nodes where leaves are attached. The best cuttings are the tips or ends of vines ...
Posey: Umm. you don't always need roots. Stems do the job, too. When you put the plants in the water, with or without roots, the tubes in the stem transport the water to the flower. Ivy ...
This will toughen the leaves so they are less prone to ... Although pruning may encourage the production of side shoots, plants may produce just one new stem to replace the one cut, depending ...