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Related Concept Videos

Introduction to Wood01:19

Introduction to Wood

Wood, derived from trees, is a versatile and widely used construction material. Trees feature a trunk surrounded by a protective layer of dead bark. Beneath this outer layer lies the living bark, followed by the cambium, and then the sapwood which transitions into heartwood as it matures. At the center of the trunk is the pith. The age of a tree can be discerned by examining its growth rings, which are concentric bands visible in the trunk's cross-section.
The structural integrity of the wood...
Softwoods and Hardwoods01:28

Softwoods and Hardwoods

Softwoods and hardwoods, derived from different types of trees, are distinguished by their leaf structures and cellular compositions, each serving unique purposes in construction and manufacturing. Softwoods come from cone-bearing trees with needle-like leaves and are predominantly composed of longitudinal cells called tracheids and a smaller proportion of radial cells known as rays. Due to their cellular structure, softwoods are commonly used in construction for structural frames, sheathing,...
Lumber01:19

Lumber

Lumber is derived from logs which are harvested, debarked, and processed into long pieces with a rectangular cross-section. The transformation of logs into lumber involves multiple steps, beginning with an automated saw that slices the log into slabs. These slabs are then transported via a conveyor belt to smaller saws, where they are cut into square-edged pieces of specific widths.
Initially, the surfaces of these lumber pieces are rough, and their dimensions may vary slightly from one end to...
Wood Surfacing01:14

Wood Surfacing

Wood surfacing is a critical finishing process designed to smoothen the wood surface, enhance its dimensional accuracy, and make handling safer. This process compensates for potential shrinkage during the seasoning phase by marginally increasing the wood dimensions before surfacing. It also helps correct some distortions that may occur as the wood dries.
The equipment used in the surfacing process is a plane equipped with rotating blades. This tool efficiently smoothens the wood surface and can...
Wood Products01:21

Wood Products

Wood products encompass a broad range of materials crafted from wood strands, veneers, lumber, and even waste wood-like shreds, designed for both structural and nonstructural purposes. Various specialized wood products have been developed to enhance strength, durability, and versatility in building applications.
Glue-laminated wood, often referred to as glulam, combines multiple smaller pieces of dimensional lumber using adhesives to form a single, larger piece. Cross-laminated timber consists...
Environmental Applications of Microorganisms01:30

Environmental Applications of Microorganisms

Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...

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A Technical Perspective in Modern Tree-ring Research - How to Overcome Dendroecological and Wood Anatomical Challenges
09:33

A Technical Perspective in Modern Tree-ring Research - How to Overcome Dendroecological and Wood Anatomical Challenges

Published on: March 5, 2015

New tools for engineering tomorrow's forests.

Simon R Law1

  • 1Department of Plant Physiology, Umeå University, 907 36 Umeå, Sweden.

Physiologia Plantarum
|March 29, 2019
PubMed
Summary
This summary is machine-generated.

Wood formation is influenced by plant hormones auxin and gibberellic acid (GA). Understanding these phytohormones offers targets for optimizing wood properties in fiber cells.

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Area of Science:

  • Plant Biology
  • Biomaterials Science
  • Forestry

Background:

  • Wood has been crucial for human civilization, providing shelter, fuel, and tools.
  • Modern applications leverage wood-derived biomaterials like cellulose nanocomposites.
  • Plant hormones regulate crucial developmental processes, including wood formation.

Purpose of the Study:

  • To investigate the role of auxin and gibberellic acid (GA) in wood formation.
  • To identify potential targets for enhancing cell wall properties in wood fibers.

Main Methods:

  • Analysis of phytohormone influence on wood development.
  • Examination of cell wall property optimization in fiber cells.

Main Results:

  • The study details how auxin and GA impact wood formation processes.
  • Specific targets for optimizing cell wall characteristics in fiber cells were revealed.

Conclusions:

  • Phytohormones auxin and GA are key regulators of wood formation.
  • This research provides insights for developing improved wood-based biomaterials.