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Chapter 8: Structure of Woody Plants (Concepts (Primary Tissue, Secondary…
Chapter 8: Structure of Woody Plants
Concepts
Primary Tissue
Secondary Tissue
Bark
Tree Growth and Rings
Vascular Cambium
Initiation of the Vascular Cambium
Vascular Cambium
Faciular Cambium
Interfascicular Cambium
Fusiform Initials
Periclinal Wall
Anticlinal Walls
Ray Initials
Short and less cuboidal
Arrangement of Cambial Cells
Storied Cambium
Nontoried Cambium
Secondary Xylem
Types of Wood Cells
Axial system and Radial system
Softwoods and Hardwoods
Upright cells and Procumbent cells
Growth Rings
Early Wood
Diffuse porous and ring porous
Heartwood and Sapwood
Sapwood is the moister outer region
Heartwood is the dark wood and lighter
Reaction Wood
In response to such stress
Botany and Beyond: Wood in Three Dimensions
Plants Do Things Differently: Having Multiple Bodies in One Lifetime
Woody plants have two bodies
each body carrying out distinct phases of the organism's life activities
Second Phloem
Two axial and a radial system
ring porous
Outer Bark
Cork and the Cork Cambium
Phellogen and Phellem Cell
Periderm
Outer and Inner Bark
Lenticels and Oxygen Diffusion
aerenchymatous cork
Initation of Cork Cambia
Fiber cells produce fibrous, stringy bark, sclereid-filled phloem produces hard barck
Plants and People: Dendrochronology-Three Ring Analysis
rings can tell us alot about the environment the tree was in
Anomalous Forms of Growth
Anomalous Secondary Growth
Roots of Sweet Potatoes
the amount of parechyma is increased dramatically
Included Phloem
oldest secondary phloem then becomes reactivated
Unequal Activity of the Vascular Cambium
woody vines
soon becomes a thin, flat, woody ribbon
Secondary Growth in Monocots
Secondary vascular bundles
Unusual Primary Growth
Establishment Growth
Plants Do Things Differently: Thinking about the Growth of Wood
Really not too difficult
Nail, Hair, and Skin have localized growth just like this
wood can be compared to bones as in support
