Lec 8: Meds From Stems, Leaves And Flowers Flashcards
Three types of meristematic tissue (regions of active cell division)
Apical meristem, vascular cambium, axillary buds
Apical meristem
Forms tissues required to increase stem height (primary growth)
Vascular cambium
Involved in increasing stem diameter in woody plants
Axillary buds
Form leaves, branches, and flowers
Tree Stems contain a
Lateral meristem called vascular cambium
Lateral growth of a tree is due to
Vascular cambium
Tree bark consists of
Outer bark and inner bark
Outer bark is called
Periderm
Inner bark is called
Secondary phloem
Molecules with medicinal value found in
Inner bark
Cork cells contain
Lignin, suberin, phenolics, terpenes
Pacific yew tree treats
Cancer as it’s inner bark contains paclitaxel
Pacific yew is poisonous in
Most parts but the arils due to taxine
Taxine causes
Dizziness, and cardiac or respiratory failure
Taxol prevents
Tumor cells from dividing