Cellular Aspects of Wood Formation

Cellular Aspects of Wood Formation PDF Author: Jörg Fromm
Publisher: Springer Science & Business Media
ISBN: 3642364918
Category : Nature
Languages : en
Pages : 265

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Book Description
With today’s ever growing economic and ecological problems, wood as a raw material takes on increasing significance as the most important renewable source of energy and as industrial feedstock for numerous products. Its chemical and anatomical structure and the excellent properties that result allow wood to be processed into the most diverse products; from logs to furniture and veneers, and from wood chippings to wooden composites and paper. The aim of this book is to review advances in research on the cellular aspects of cambial growth and wood formation in trees over recent decades. The book is divided into two major parts. The first part covers the basic process of wood biosynthesis, focusing on five major steps that are involved in this process: cell division, cell expansion, secondary cell wall formation, programmed cell death and heartwood formation. The second part of the book deals with the regulation of wood formation by endogenous and exogenous factors. On the endogenous level the emphasis is placed on two aspects: control of wood formation by phytohormones and by molecular mechanisms. Apart from endogenous factors, various exogenous effects (such as climate factors) are involved in wood formation. Due to modern microscopic as well as molecular techniques, the understanding of wood formation has progressed significantly over the last decade. Emphasizing the cellular aspects, this book first gives an overview of the basic process of wood formation, before it focuses on factors involved in the regulation of this process.

Cellular Aspects of Wood Formation

Cellular Aspects of Wood Formation PDF Author: Jörg Fromm
Publisher: Springer Science & Business Media
ISBN: 3642364918
Category : Nature
Languages : en
Pages : 265

Get Book Here

Book Description
With today’s ever growing economic and ecological problems, wood as a raw material takes on increasing significance as the most important renewable source of energy and as industrial feedstock for numerous products. Its chemical and anatomical structure and the excellent properties that result allow wood to be processed into the most diverse products; from logs to furniture and veneers, and from wood chippings to wooden composites and paper. The aim of this book is to review advances in research on the cellular aspects of cambial growth and wood formation in trees over recent decades. The book is divided into two major parts. The first part covers the basic process of wood biosynthesis, focusing on five major steps that are involved in this process: cell division, cell expansion, secondary cell wall formation, programmed cell death and heartwood formation. The second part of the book deals with the regulation of wood formation by endogenous and exogenous factors. On the endogenous level the emphasis is placed on two aspects: control of wood formation by phytohormones and by molecular mechanisms. Apart from endogenous factors, various exogenous effects (such as climate factors) are involved in wood formation. Due to modern microscopic as well as molecular techniques, the understanding of wood formation has progressed significantly over the last decade. Emphasizing the cellular aspects, this book first gives an overview of the basic process of wood formation, before it focuses on factors involved in the regulation of this process.

Wood Formation in Trees

Wood Formation in Trees PDF Author: Nigel J Chaffey
Publisher: CRC Press
ISBN: 1134485069
Category : Science
Languages : en
Pages : 801

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Book Description
Trees are a major component of the biosphere and have played an important part in the world's history and culture. With the modern challenges of global warming and dwindling fossil fuel reserves, trees, and in particular their wood, can provide solutions. Unfortunately, too little is known about the biology of these plants, due largely to a lack of

Physiological Responses to Abiotic and Biotic Stress in Forest Trees

Physiological Responses to Abiotic and Biotic Stress in Forest Trees PDF Author: Heinz Rennenberg
Publisher: MDPI
ISBN: 3039215140
Category : Technology & Engineering
Languages : en
Pages : 294

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Book Description
As sessile organisms, plants have to cope with a multitude of natural and anthropogenic forms of stress in their environment. Due to their longevity, this is of particular significance for trees. As a consequence, trees develop an orchestra of resilience and resistance mechanisms to biotic and abiotic stresses in order to support their growth and development in a constantly changing atmospheric and pedospheric environment. The objective of this Special Issue of Forests is to summarize state-of-art knowledge and report the current progress on the processes that determine the resilience and resistance of trees from different zonobiomes as well as all forms of biotic and abiotic stress from the molecular to the whole tree level.

Meristematic Tissues in Plant Growth and Development

Meristematic Tissues in Plant Growth and Development PDF Author: Michael T. McManus
Publisher: CRC Press
ISBN: 9780849397929
Category : Nature
Languages : en
Pages : 328

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Book Description
This book presents an overview of the role of meristematic tissues in plant growth and development, with an emphasis on advances of the last decade. It examines meristematic tissues as a defined, independent tissue type in plants and gives consideration to their origin, maintenance, and function. The editors pay particular attention to the molecular mechanisms underlying meristem formation and maintenance. This volume is a tremendously valuable resource for plant geneticists, developmental biologists, and molecular biologists.

Wood Structure in Plant Biology and Ecology

Wood Structure in Plant Biology and Ecology PDF Author: Pieter Baas
Publisher: BRILL
ISBN: 9004265600
Category : Science
Languages : en
Pages : 185

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Book Description
At present the study of functional and ecological wood anatomy enjoys a vigorous renaissance and plays a pivotal role in plant and ecosystem biology, plant evolution, and global change research. This book contains a selection of papers presented at the successful meetings of the International Association of Wood Anatomists and the Cost-Action STReESS (Studying Tree Responses to extreme Events: a Synthesis) held in Naples in April 2013. Four review papers address (1) the hydraulic architecture of the earliest land plants, (2) the general phenomenon of axial conduit tapering in trees, (3) the hydraulic and biomechanical optimization in one of the most important plantation grown tree species, Norway Spruce, and (4) cellular and subcellular changes in the cambium in response to environmental factors. Three papers review or introduce new tools to observe the 3-D structure and functioning of wood, and novel tools for quantitative image analysis in tree ring series. Finally, five papers report original research on environmental effects on wood structure, including studies on plastic responses in European beech, effects of fire or late summer rains on Mediterranean Aleppo Pine, and the potential for using arctic shrubs or tropical deciduous trees in dendrochronological and climatological studies. Reprinted from IAWA Journal 34 (4), 2013.

Genetics of Wood Production

Genetics of Wood Production PDF Author: Bruce J. Zobel
Publisher: Springer
ISBN: 9783642795169
Category : Technology & Engineering
Languages : en
Pages : 0

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Book Description
Over the past years, a great deal has been learned about variation in wood prop erties. Genetic control is a major source of variation in most wood properties. Wood is controlled genetically both directly in the developmental or internal pro cesses of wood formation and indirectly by the control of tree form and growth patterns. Emphasis in this book will be on the internal control of wood production by genetics although there will be two chapters dealing with the indirect genetic control of wood, which was covered in detail in the previous book by Zobel and van Buijtenen (1989). The literature on the genetics of wood is very variable, SO'lle quite superficial, on which little reliance can be placed, and some from well-designed and correctly executed research. When suitable, near the end of each chapter, there will be a summary with the authors' interpretation of the most important information in the chapter. The literature on the genetics of wood can be quite controversial. This is to be expected, since both the environment and its interaction with the genotype of the tree can have a major effect on wood properties, especially when trees of similar genotypes are grown under widely divergent conditions. Adding to the confusion, studies frequently have been designed and analyzed quite differently, resulting in conflicting assessments of results.

The Biology of Reaction Wood

The Biology of Reaction Wood PDF Author: Barry Gardiner
Publisher: Springer Science & Business Media
ISBN: 3642108148
Category : Nature
Languages : en
Pages : 281

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Book Description
The book is a fundamental reference source on reaction wood for wood scientists and technologists, plant biologists, silviculturists, forest ecologists, and anyone involved in the growing of trees and the processing of wood. It brings together our current understanding of all aspects of reaction wood, and is the first book to discuss both compression wood and tension wood. Trees produce reaction wood to maintain the vertical orientation of their stems and the optimum angle of each branch. They achieve this by laying down fibre cell walls in which differences in physical and chemical structure from those of normal fibres are expressed as differential stresses across the stem or branch. This process, while of obvious value for the survival of the tree, causes serious problems for the utilisation of timber. Timber derived from trees containing significant amounts of reaction wood is subject to dimensional instability on drying, causing twisting, bending and splitting. It is also difficult to work as timber, and for the pulp and paper industry the cost of removing the increased amount of lignin in compression wood is substantial. This has both practical and economic consequences for industry. Understanding the factors controlling reaction wood formation and its effect on wood structure is therefore fundamental to our understanding of the adaptation of trees to their environment and to the sustainable use of wood. The topics covered include: -Morphology, anatomy and ultrastructure of reaction wood -Cell-wall polymers in reaction wood and their biosynthesis -Changes in tree proteomes during reaction wood formation -The biomechanical action and biological functions of reaction wood - Physical and mechanical properties of reaction wood from the scale of cell walls to planks -The detection and characterisation of compression wood -Effects of reaction wood on the performance of wood and wood-based products - Commercial implications of reaction wood and the influence of forest management on its formation

The Vascular Cambium

The Vascular Cambium PDF Author: Muhammad Iqbal
Publisher: *Research Studies Press
ISBN:
Category : Science
Languages : en
Pages : 272

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Book Description
The vascular cambium, a lateral meristem responsible for the radical growth of woody plants, has long been a subject for active research in both temperate and tropical regions. This work provides comprehensive coverage of all aspects of the vascular cambium and represents an up-to-date review of the knowledge accumulated over the last twenty years. Chapters cover origin and development of cambial cells, phenomena of orientation in the cambium, seasonal and environmental influences on cambial activity. There is also a discussion of the evolution of the cambium in geologic time.

The Vascular Cambium

The Vascular Cambium PDF Author: Philip R. Larson
Publisher: Springer Science & Business Media
ISBN: 3642784666
Category : Technology & Engineering
Languages : en
Pages : 737

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Book Description
The cambium has been variously defined as follows: "The actively dividing layer of cells that lies between, and gives rise to, secondary xylem and phloem (vascular cambium)" (IAWA 1964); "A meristem with products of periclinal divisions commonly contributed in two directions and arranged in radial files. Term pre ferably applied only to the two lateral meristems, the vascular cambium and cork cambium, or phellogen" (Esau 1977); and, "Lateral meristem in vascular plants which produces secondary xylem, secondary phloem, and parenchyma, usually in radial rows; it consists of one layer of initials and their undifferentiated deriva tives" (Little and Jones 1980). Clearly, the cambium is a diverse and extensive meristem, and no one defini tion will encompass all manifestations of what anatomists consider cambium. Its diversity and extent are further exemplified by a single plant, such as a temperate zone tree, in which procambium is initiated in the embryo and perpetuated throughout every lateral, primary meristem before giving rise to cambium in the secondary body. The cambium thereafter performs its meristematic task of producing daughter cells that differentiate to specialized tissue systems. The cam bium, however, does not remain static. Its derivatives vary either in form, or TImc tion, or rate of production at different positions on the tree, with age of the tree, and with season of the year. Moreover, the cambium responds both to internal sig nals and to external stimuli such as environment or wounding.

Molecular Cell Biology of the Growth and Differentiation of Plant Cells

Molecular Cell Biology of the Growth and Differentiation of Plant Cells PDF Author: Ray J. Rose
Publisher: CRC Press
ISBN: 1315353393
Category : Science
Languages : en
Pages : 452

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Book Description
Molecular Cell Biology of the Growth and Differentiation of Plant Cells encompasses cell division, cell enlargement and differentiation; which is the cellular basis of plant growth and development. Understanding these developmental processes is fundamental for improving plant growth and the production of special plant products, as well as contributing to biological understanding. The dynamics of cells and cellular organelles are considered in the context of growth and differentiation, made possible particularly by advances in molecular genetics and the visualization of organelles using molecular probes. There is now a much clearer understanding of these basic plant processes of cell division, cell enlargement and differentiation. Each chapter provides a current and conceptual view in the context of the cell cycle (6 chapters), cell enlargement (5 chapters) or cell differentiation (9 chapters). The book provides state of the art knowledge (and open questions) set out in a framework that provides a long term reference point. The book is targeted at plant cell biologists, molecular biologists, plant physiologists and biochemists, developmental biologists and those interested in plant growth and development. The book is suitable for those already in the field, plant scientists entering the field and graduate students.