PLNT_S 2125 Lecture Notes - Lecture 4: Meristem, Axillary Bud, Vascular Cambium
Document Summary
Characteristics: nodes, where leaves and axillary buds form ii, swollen areas on the stem where a leaf is b. Internodes: responsible for stem elongation in many plants, some plants don"t use internode elongation, rosette weeds, like dandelion, space between nodes, axillary buds i, meristematic regions, leaf-stem axil. Inflorescences iv: branches, stolons, above ground horizontal stems of grasses, root and shoot at nodes, roots will form at nodes when soil contact, plants are considered a different plant, vegetative propagation, new plants at each node, bermuda grass. 5: rhizomes, underground horizontal stems, store reserves, root and shoot at nodes, also vegetative propagation, many weedy species. 5: tillers, found in bunch grasses, arise from axillary buds and unelongated internodes. 3: rays form from nonfunctioning cells, crushed tissue, secondary phloem, new cell formed to the outside of vascular cambium (bark, sugars and organic compounds, along outside of stem. Wood: springwood, large, thin walled cells, more water intake and many new leaves developed.
