GLORIA

GEOMAR Library Ocean Research Information Access

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Online Resource
    Online Resource
    Les Ulis :EDP Sciences,
    Keywords: Botanical gardens. ; China. ; Electronic books.
    Description / Table of Contents: No detailed description available for "Phytohortology".
    Type of Medium: Online Resource
    Pages: 1 online resource (842 pages)
    Edition: 1st ed.
    ISBN: 9782759825318
    Series Statement: Current Natural Sciences Series
    Language: English
    Note: Intro -- Phytohortology -- The Scientific Term -- About the Main Authors -- Explanation and Remarks on Publishing -- Brief Introduction to the Book -- FOREWORD -- PREFACE -- The distribution of major botanical gardens in China* -- Abbreviation of Chinese Botanical Garden Names -- CONTENTS -- Chapter 1 Botanical Garden and Botanical Garden Science, PHYTOHORTOLOGY -- 1.1 Professional Concept of a Botanical Garden -- 1.2 Nature and Function of Botanical Gardens -- 1.2.1 Nature -- 1.2.2 Function -- 1.2.3 Feature of Scientific Research in Botanical Gardens -- 1.3 Classification of Botanical Gardens and Their Features -- 1.3.1 Multi-function Integrated Botanical Gardens -- 1.3.2 Botanical Gardens Belonging to University or Research Institute -- 1.3.3 Professional Botanical Gardens -- 1.3.4 Other Types of Botanical Gardens -- References -- Chapter 2 The History of Botanical Gardens -- 2.1 The History of World Botanical Gardens -- 2.1.1 The Beginning of Modern Botanical Gardens -- 2.1.2 Growth of Modern Botanical Gardens -- 2.1.3 The Establishment of International Botanic Gardens Organization Promoted the Development of Botanical Gardens -- 2.2 The history of Chinese Modern Botanical Gardens -- 2.2.1 The Feature of Botanical Garden Development -- 2.2.2 Development of the Quantity of Botanical Gardens -- 2.2.3 Distribution of Botanical Gardens in China -- 2.2.4 The Prospects of Professional Development of Botanical Gardens -- References -- APPENDIX: The Declaration of Gran Canaria -- Chapter 3 Ex-situ Conservation in Botanical Gardens -- 3.1 Essentials of Ex-situ Conservation -- 3.1.1 Status and Reasons for Species Endangerment -- 3.1.2 The Concept of the Integrative Conservation -- 3.1.3 Significance and Function of Ex-situ Conservation -- 3.1.4 The Target Taxa Appropriated to Ex-situ Conservation. , 3.1.5 Ex-situ Conservation in Botanical Garden Provides "Refuge" for Endangered Plants, and a "Transition Point" of Cultivation for Wild Plants -- 3.2 The Status Quo of Ex-situ Conservation in Botanical Gardens and the Convention On Biological Diversity (CBD) -- 3.2.1 The Status Quo of Plant Introduction and Collections in Botanical Gardens -- 3.2.2 The Relationship of Ex-situ Conservation and the Convention on Biological Diversity -- 3.3 The Evaluation of Ex-situ Conservation -- 3.3.1 The Multiple and Comprehensive Evaluation System -- 3.3.2 Establishing the Evaluation Criteria for Collections According to the Character and Assignments of Each Garden -- 3.4 Ex-situ Conservation Technique -- 3.4.1 Basic Scientific Disciplines -- 3.4.2 Minimum Population -- 3.4.3 The Sampling Technique -- 3.4.4 Seed Bank -- 3.5 The Recordkeeping System of Living Plant Collections -- 3.5.1 The Importance of Recordkeeping -- 3.5.2 Traditional Plant Recordkeeping -- 3.5.3 The Development of the Computerization of Plant Recording Systems -- 3.5.4 Analysis on the Issues and Outlooks in the Computerization Process of Plant Records in Botanical Gardens -- 3.6 The Ex-situ Conservation of Medicinal Plants -- 3.6.1 The Complexity of Medicinal Plant Conservation -- 3.6.2 The Urgency of the Medicinal Plant Conservation -- 3.6.3 Ex-situ Conservation Is the Base of Medicinal Plant Cultivation -- 3.7 Urban Biodiversity Conservation -- 3.7.1 The Process of Urbanization Is the Result of Social and Economic Development -- 3.7.2 Urban Development Causes a Serious Loss of Biodiversity -- 3.7.3 The Ecological Environment of Urban Bring About Variation of Plant Species -- 3.7.4 Urgent Protection Needed for Germplasm Resources in Cities -- 3.7.5 Cities Need More Plant Resources Than Before -- 3.8 The Ex-situ Conservation and the Blue Book. , 3.8.1 Species That Can Be Removed From the Red List -- 3.8.2 Species That Can be Listed in the Blue Book -- 3.9 Improvement of the Ex-situ Conservation Pattern, and Study on the Centers For Ex-situ Plant Conservation -- 3.9.1 Improvement of the Ex-situ Conservation Pattern -- 3.9.2 Exploration of the Centers for Plant Ex-situ Conservation -- References -- APPENDIX I -- APPENDIX II -- Chapter 4 Plant Introduction and Acclimatization in Botanical Gardens -- 4.1 The Definition and Criterion of Plant Introduction and Acclimatization -- 4.2 The Theory of Plant Introduction and Acclimatization and Its Application -- 4.2.1 Climatic Similarity Theory -- 4.2.2 Ecological History Analysis -- 4.2.3 The Original Center of Cultivated Plants -- 4.2.4 Ecological Factor Analysis Method and Plant Introduction Effect Theory -- 4.2.5 The Biodiversity Centers -- 4.3 The Mission of Plant Introduction and Acclimatization of Botanical Gardens -- 4.4 The Plant Introduction of Specific Groups, Families, and Genera -- 4.4.1 The Introduction of Specific Groups -- 4.4.2 The Introduction of Specific Families -- 4.4.3 The Introduction of Specific Genera -- 4.4.4 Geographical Regional Introduction-Chinese Plants Around the World -- 4.5 The Plant Introduction and Exploration of Economic Plants in Botanical Gardens-with Special Reference of Industrial Plant Materials in China -- 4.5.1 Hevea brasiliensis -- 4.5.2 Nicotiana tabacum -- 4.5.3 Lavandula angustifolia -- 4.5.4 Carthamus tinctorius -- 4.5.5 Stevia rebaudiana -- 4.5.6 Toxicodendron vernicifluun -- 4.5.7 Cistus ladaniferus -- 4.6 Some Cases of the Fruit Tree Introduction and Development by Chinese Botanical Gardens -- 4.6.1 Vitis -- 4.6.2 Actinidia -- 4.6.3 Rubus -- 4.6.4 Vaccinium -- 4.6.5 Mangifera indica -- 4.6.6 Others. , 4.7 The Introduction and Acclimatization of Trees and Environmental Plants in Chinese Botanical Gardens -- 4.7.1 Trees -- 4.7.2 Psammophyte -- 4.8 The Introduction and Acclimatization of Medicinal Plants in Chinese Botanical Gardens -- 4.8.1 A Survey of Chinese Botanical Garden in Medicinal Plant Introduction -- 4.8.2 The Key Species Researched in Chinese Botanical Gardens -- 4.8.3 The Stress Cultivation -- 4.9 The Introduction of Ornamental Plants in Chinese Botanical Gardens -- 4.9.1 Paeonia -- 4.9.2 Chimonanthus -- 4.9.3 Victoria -- 4.9.4 Nelumbo and Nymphaea -- 4.10 The Introduction and Acclimatization of Ground Cover Plants and Turf Grass in Chinese Botanical Gardens -- 4.10.1 The Ground Cover Plants -- 4.10.2 Turf Grass -- 4.11 The Introduction of Hedgerow Plants -- 4.12 The Plant Introduction and Acclimatization and Invasive Species -- 4.12.1 The Concept of Invasive Species -- 4.12.2 The Damage Status of Invasive Species -- 4.12.3 The Invasive Species and the Introduction and Acclimatization of Plants -- References -- Chapter 5 The Greenhouse System in Botanical Gardens -- 5.1 The Types and Functions of Botanical Garden Greenhouses -- 5.1.1 The Exhibition Greenhouse -- 5.1.2 Propagation Greenhouse -- 5.1.3 Experimental Greenhouse -- 5.2 The History of the Exhibition Greenhouse in Botanical Gardens.. -- 5.2.1 Early Non-exhibition Greenhouse -- 5.2.2 The Birth of Large-scale Exhibition Greenhouses and Their Three Development Stages -- 5.2.3 The Architectural Art in Large-scale Exhibition Greenhouses -- 5.2.4 The Origin About the Name of Greenhouse -- 5.3 Examples of Greenhouse Systems in Botanical Gardens -- 5.3.1 Greenhouse Series in RBG Kew -- 5.3.2 The Eden Project -- 5.4 A Great Variety of Greenhouse Plants -- 5.4.1 Types of Display -- 5.4.2 The Plants Displayed in Exhibition Greenhouses -- 5.5 Ancillary Facilities -- 5.5.1 The Sun-shelters. , 5.5.2 The Preparation of Soil in Greenhouse and Soil Disinfection Equipment -- 5.5.3 The Reservoir -- References -- Chapter 6 Education in Botanical Gardens -- 6.1 Aim, Significance, and Role of Education in Botanical Gardens -- 6.2 Objects of Botanical Gardens Education -- 6.2.1 Children and Students -- 6.2.2 Adults -- 6.2.3 People with Special Needs -- 6.3 Educational Approaches and Forms in Botanical Gardens -- 6.3.1 Ordinary Information for Visitors -- 6.3.2 Scientific Guide -- 6.3.3 Plant Labels -- 6.3.4 Popular Science Exhibition and Flower Show -- 6.3.5 Summer (Winter) Camp -- 6.3.6 Popular Science Lectures and Training Courses -- 6.3.7 Popular Science Competition -- 6.3.8 Education Gallery, Propaganda Window and Cordial Labels -- 6.3.9 Popular Science Reading Materials and Press -- 6.3.10 Setting up Advisory Mailbox and Hotline -- 6.3.11 Establishing Cooperative Relationships with Schools -- 6.3.12 International Cooperation and Exchanges -- 6.4 Education Facilities in Botanical Gardens -- 6.4.1 Hardware -- 6.4.2 Software -- 6.5 Association: Friends of Botanical Gardens -- References -- Chapter 7 Landscape Planning, Design and Architecture in Botanical Gardens -- 7.1 Basic Principles for Landscape Architecture in a Botanical Garden -- 7.1.1 Adapting to the Characteristics of Botanical Gardens -- 7.1.2 Reflecting the Nature of Botanical Gardens -- 7.1.3 Fully Utilizing Native Natural Resources -- 7.2 Selecting Location for Botanical Gardens -- 7.2.1 Selecting Geographical Locations -- 7.2.2 Selecting Site -- 7.3 Layout of a Botanical Garden -- 7.3.1 Adjusting Topography and Regulating Water Systems -- 7.3.2 Functional Areas and Roads -- 7.3.3 Landscape Structures -- 7.3.4 Arrangement of Plant Groups -- 7.4 Exhibit the Plant Diversity, Landscape Architecture and Planning in Specific and Topic Gardens. , 7.4.1 Scientific Research Foundation of Specific and Topic Garden Development.
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Sexual plant reproduction 7 (1994), S. 313-323 
    ISSN: 1432-2145
    Keywords: Cytoplasmic inheritance Double fertilization ; Embryo sac Mitochondrial transmission ; Tobacco ; Sperm cell
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Serially sectioned embryo sacs of Nicotiana tabacum were examined during fertilization events using transmission electron microscopy. After pollen tube discharge, the outer membrane of the sperm pair is removed, the two sperm cells are deposited in the degenerate synergid and the sperm cells migrate to the chalazal edge of the synergid where gametic fusion occurs. During fertilization, the male cytoplasm, including heritable organelles, is transmitted into the female reproductive cells as shown by: (1) the cytoplasmic confluence of one sperm and the central cell during cellular fusion, (2) the occurrence of sperm mitochondria (distinguished by ultrastructural differences) in the zygote cytoplasm and adjacent to the sperm nucleus, (3) the presence of darkly stained aggregates which are found exclusively in mature sperm cells within the cytoplasm of both female cells soon after cell fusion, and (4) the absence of any large enucleated cytoplasmic bodies containing recognizable organelles outside the zygote or endosperm cells. The infrequent occurrence of plastids in the sperm and the transmission of sperm cytoplasm into the egg during double fertilization provide the cytological basis for occasional biparental plastid inheritance as reported previously in tobacco. Although sperm mitochondria are transmitted into the egg/zygote, their inheritance has not been detected genetically. In one abnormal embryo sac, a pair of sperm cells was released into the cytoplasm of the presumptive zygote. Although pollen tube discharge usually removes the inner pollen-tube plasma membrane containing the two sperm cells, this did not occur in this case. When sperm cells are deposited in a degenerating synergid or outside of a cell, this outer membrane is removed, as it apparently is for fertilization.
    Type of Medium: Electronic Resource
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 3
    ISSN: 1432-2145
    Keywords: Generative cell ; Male germ unit Nicotiana tabacum ; Pollen tube ; Sperm cell
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Generative and sperm cells were examined at four stages of development from generative cell formation to sperm cell maturation using serial transmission electron microscopy. The generative cell and vegetative nucleus are associated in a male germ unit association during pollen maturation and tube elongation, except for generative cell mitosis. At late stages of prophase, this association loosens; the generative cell separates from the vegetative nucleus at metaphase. Slender, unbranched, or occasionally branched projections may be found at one or both ends of the generative cell, or they may be single, blunt, and short. Slender projections are rare during anaphase and telophase. The vegetative nucleus moves back into apposition with one sperm cell at the end of mitosis. During the re-establishment of the association, the vegetative nucleus first touches the end of the leading sperm cell and then moves next to the middle of the sperm nucleus. As the sperm cells enter interphase, a conventional association is re-established between one cell and the vegetative nucleus through one or more long and slender cytoplasmic extensions; these associations are maintained throughout later passage in the pollen tube. During maturation, a significant increase occurs in the surface area of the sperm cells (particularly in the sperm cell in association with the vegetative nucleus), and a lesser increase in nuclear volume and surface area. Other sperm cell parameters, including those of heritable organelles, remain unchanged during sperm cell maturation.
    Type of Medium: Electronic Resource
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 4
    ISSN: 1432-2048
    Keywords: Autophagy ; Cytoplasmic inheritance ; Generative cell ; Nicotiana (reproductive cells) ; Plastid diminution ; Sperm cell
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The dynamics of plastid and mitochondrial populations in male reproductive cells of tobacco (Nicotiana tabacum L.) were examined during development using serial ultrathin sections and transmission electron microscopy to reconstruct 58 generative cells and 31 sperm cells at selected stages of maturation from generative cell formation through gametic fusion. The first haploid mitosis resulted in incomplete exclusion of plastids providing an average of 2.81 plastids and 82.7 mitochondria for each newly formed generative cell. During generative-cell maturation, plastid content decreased to an average of 0.48 plastids/generative cell at anthesis owing to autophagy of organelles. Plastids were present in low frequency within generative and sperm cells in the pollen tube and appeared to be transmitted, according to observations immediately prior to fertilization. This forms a cytological basis for genetic reports of occasional biparental plastid inheritance. In contrast, mitochondria were transmitted in larger numbers, and approximately 80 mitochondria per generative cell or sperm cell pair were retained throughout development. This provides a potentially stable source for the transmission of male mitochondrial DNA, if present at fertilization.
    Type of Medium: Electronic Resource
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Protoplasma 152 (1989), S. 29-36 
    ISSN: 1615-6102
    Keywords: Male germ unit ; Nicotiana tabacum ; Pollen tube ; Sperm cell
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The structure of sperm cells and their association with the vegetative nucleus in pollen tubes ofNicotiana tabacum grown in styles were observed with the electron microscope, demonstrating the existence of a male germ unit. The two sperm cells are arranged in tandem and are closely associated with the vegetative nucleus, which always takes the lead. The leading sperm cell (SC 1) has a long and narrow cytoplasmic projection which lies within the enclaves of the much lobed vegetative nucleus, thus forming a physical association. The trailing sperm cell (SC 2) and the SC 1 are not only joined by a common transverse cell wall but also are surrounded by a periplasm bounded by the plasma membrane of the sperm cells and that of the vegetative cell, thus forming a structural connection. The sperm cells are elongated, with cytoplasmic projections at the anterior end of the SC 1 and at both ends of the SC 2. The cytoplasm of both sperm cells includes mitochondria, endoplasmic reticulum, dictyosomes, ribosomes, small vacuoles and axially oriented microtubules. No plastids were observed.
    Type of Medium: Electronic Resource
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Protoplasma 147 (1988), S. 55-63 
    ISSN: 1615-6102
    Keywords: Generative cell ; Sperm cell ; Treetomato ; Ultrastructure ; Vegetative nucleus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The structure of the generative cell and its association with the vegetative nucleus in the pollen tube ofCyphomandra betacea Sendt. were observed with the electron microscope. The generative cell, bounded by its own plasma membrane and the inner plasma membrane of the vegetative cell, possesses the cytoplasmic extension which lies within the embayments of a vegetative nucleus. The generative cell contains the normal complement of organelles and, especially, microtubules which cluster into several groups adjacent to the plasma membrane, oriented along the longitudinal axis of the cell. In the pollen tube reaching the lower end of the style aftersemivivo pollination, both of the sperm cells are elongated and polyribosomes and microtubules are the outstanding feature in the cytoplasm. The two sperm cells are connected by a common transverse cell wall, while cytoplasmic channels exist in both the periplasm of the two sperm cells and the transverse wall. The leading sperm cell (Svn) is closely associated with the vegetative nucleus. Thus the present study demonstrates the existence of the male germ unit in the pollen tube ofC. betacea. The possible cytoplasmic continuity between the sperm cells and between the gametes and vegetative cell is considered.
    Type of Medium: Electronic Resource
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...