Buch, Englisch, 424 Seiten, Format (B × H): 170 mm x 240 mm
Vol. X: Seed Anatomy
Buch, Englisch, 424 Seiten, Format (B × H): 170 mm x 240 mm
ISBN: 978-3-443-14024-3
Verlag: Borntraeger
On 400 pages, the author gives a comprehensive survey not only of seed anatomy, including shape, size, weight and colouring of seeds, but also treats the very variable surface structures, seed and embryo proportions and relations, their nutritive tissues and the manifold reserve materials. She furthermore refers to the function of the seed coat and the advantages of sculpturing, as well as to the secretory structures in the seed, the vascularization and the passage of the nutrients. This excellent work is an encyclopedic reference indispensable for anybody who is interested in seeds.
Autoren/Hrsg.
Weitere Infos & Material
Preface V
2. Introduction 1
2. Morphological characteristics of seeds 2
2.1 Shape 3
2.11 Types of seed shape 3
2.12 Factors determining seed shape 3
2.13 Function 8
2.2 Size and weight 8
2.21 Interspecific variation in seed size 8
2.22 Intraspecific variation in seed size and weight 9
2.23 Factors affecting seed weight 10
2.3 Colouring 10
2.31 Function of colour 10
2.32 Variations in colour 11
2.33 Pigments and other colour-attributing factors 13
2.331 Types 13
2.332 Location (Colour of the seed coat - Colour of the embryo and endosperm - Colour of special seed structures and appendages) 13
2.34 Timing of colouring 20
13. Seed surface 22
13.1 Surface topography 23
13.11 Patterns caused by inner seed coat layers 40
13.12 Factors outside the seed influencing surface sculpturing 40
3.13 Complex patterns 41
3.14 Differences in surface sculpturing around a seed 44
3.15 Advantages in sculpturing of the seed surface 44
3.16 Surface sculpturing as an aid in taxonomy 44
3.2 Specialized structures of the surface 45
3.21 Stomata 45
3.211 Structure 47
3.212 Development 52
3.213 Function 52
3.22 Trichomes 54
3.221 Number and location of trichomes 56
3.222 Hair length 59 8
3.223 Hair structure 61
3.224 Hair development (Hair development by splitting of cells - Hair development hv partial disintegration of cell walls) 63
3.225 Function of hairs 65
4. Seed desiccation 65
4.1 Desiccation-tolerant seeds 65
4.11 Pathways of water loss 66
4.12 Factors involved in seed tolerance to desiccation 67
4.121 Timing of water loss 67
4.122 Amount of reserve materials 67
4.123 Water content 68
4.13 Seed coat desiccation 68
4.131 Seeds with fleshy tissues 68
4.14 Desiccation of endosperm and perisperm 69
4.15 Embryo desiccation 69
4.16 Desiccation of seeds in fleshy fruits 70
4.2 Desiccation-intolerant seeds 71
4.21 Recalcitrant seeds 71
4.22 Vivipary 72
5. Longevity 72
5.1 The role of seed coat in seed longevity 73
5.2 Changes that lead to the loss of viability 74
5.21 Damage to reserve tissues 75
6. Funiculus and seed abscission 75
6.1 Funiculus 75
6.11 Funicular morphology 75
6.12 Funicular anatomy 77
6.121 Vasculature 78
6.13 Functions of the funiculus 79
6.14 Funicular modifications 80
6.2 Seed abscission 83
Seed coat 84
7.1 Functions of the seed coat 85
7.2 Seed coat development 86
7.21 Integumental growth 89
7.22 Differentiation 90
7.23 Seed coat thickening 91
7.24 Rate of development 94
7.25 Endothelium 94
7.3 The mature seed coat 95
7.31 Variations within the seed coat around the seed 97
7.32 Viability of seed coat cells 98
7.33 Types of seed coat tissues 98
7.331 Protective structures (Cell wall and cell lumen materials - Seed coat cuticles - A layer of compressed cells –Wall thickenings – Crystals) 98
7.332 Sarcotesta (The fleshy layer - Protective layer of the sarco- testal seed) 121
7.333 Aerenchyma 126
7.334 Chlorenchyma 127
7.335 The seed coat as a reserve tissue 127
7.336 Undifferentiated or degenerated seed coats 128
7.4 Seeds devoid of a seed coat 128
7.5 Specialized structures of the seed coat 129
7.51 The micropyle 129
7.52 The hilum 133
7.53 The rapine 133
7.54 The chalaza 134
7.55 Strophiole and lens 136
7.56 Pleurogram 136
8. Vasculature and passage of nutrients 138
8.1 Seed coat vascular system 138
8.11 Structure 138
8.12 Location 142
8.13 Phylogeny 142
8.14 Function 145
8.15 Degree of differentiation 145
8.16 Composition 146
8.2 Vascular structures supplementary to the main vascular system 147
8.21 Scattered or sheath-like tracheidal cells 147
8.22 Tracheid bar 147
8.3 Nucellar vasculature 149
8.4 Passage of nutrients from the vascular system to the embryo sac 150
8.41 Transport through the seed coat and nucellus 151
8.42 Transport from the maternal tissues into the embryo sac 154
8.43 Transfer cells 155
9. Embryo 157
9.1 Embryo location within the seed 160
9.11 Position of the embryo 160
9.2 Embryo morphology 161
9.21 Emb
