Pollen [[electronic resource] ] : structure, types, and effects / / Benjamin J. Kaiser, editor

• Record Nr.: UNINA9910781650103321
• Pubbl/distr/stampa: New York, : Nova Science Publishers, c2010
• ISBN: 1-61728-048-8
• Descrizione fisica: 1 online resource (384 p.)
• Collana: Environmental science, engineering and technology
• Altri autori (Persone): KaiserBenjamin J
• Disciplina: 571.8/452
• Soggetti: Pollen; Palynology
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: Description based upon print version of record.
• Nota di bibliografia: Includes bibliographical references and index.
• Nota di contenuto: ""POLLEN: STRUCTURE, TYPES AND EFFECTS ""; ""POLLEN: STRUCTURE, TYPES AND EFFECTS ""; ""Contents""; ""Preface""; ""2n Pollen Formation: 40 Cytological Mechanisms of Nuclear Meiotic Restitution""; ""Abstract""; ""Introduction""; ""1. Normal Cytoskeleton Dynamics during Pollen Mother Cells Meiotic Division""; ""1.1. Cytoskeleton Cycle during First Meiosis with Successive Cytokinesis in Monocotyledonous Species""; ""1.2. Cytoskeleton Cycle in Male Meiosis in Dicotyledonous Species with Simultaneous Cytokinesis""; ""1.3. Simultaneous and Successive Cytokinesis Compared""; ""2. Prophase Abnormalities as the Reason for Meiotic Restitution""""2.1. Cytoskeleton Conservation in the Interphase Radial Configuration""; ""2.2. Fused Spindle. Approachment of Nuclei at Prophase II of Meiosis with Simultaineous Cytokinesis in Dicotyledonous Species""; ""2.3. Fused Spindle. Fusion of Cytoskeleton Perinuclear Rings at Prophase II""; ""2.4. Cortical Cytoskeleton Ring and Meiotic Restitution""; ""2.5. Autonomous Cytoskeleton Ring""; ""2.6. Chromosome Arrest in the Zygothene â€?â€?Bouquetâ€? Configuration: Monopolar Chromosome Migration in a Bipolar Spindle""; ""3. Early Prometaphase Abnormalities Leading to Nuclear Restitution""""3.1. Cytoskeleton Conservation in the Perinuclear Ring Configuration""; ""3.2 Aberration in Straightening of Microtubules of Perinuclear Ring: C-Spindle""; ""3.3 Arrest of Cytoskeleton Invading the Former Nuclear Area""; ""4. Mid Prometaphase Abnormalities and ; Meiotic Restitution""; ""4.1. Monopolar Spindle""; ""4.2. Autonomous Spindle""; ""4.3. Chromosomes Monopolar Migration in a Bipolar Spindle. “Cometâ€? Phenotype""; ""4.4. Fused Spindle. Approachment and Fusion of Cytoskeleton Chaotic Figures at Mid-Prometaphase II in PMCs with Simultaneous Cytokinesis in Dicots""""5. Abnormalities of Late Prometaphase as a Meiotic Restitution Mechanism""; ""5.1. Chaotic Spindle""; ""5.2. Spindle Disorientation at Metaphase II in the Meiosis with Simultaineous Cytokinesis in Dicots""; ""6. Anaphase Abnormalities that Lead to Meiotic Restitution""; ""6.1. Aberration of Anaphase Chromosome Movement""; ""6.2. Spindle Shortening During Anaphase""; ""7. Cytoskeleton Abnormalities at Telophase and Meiotic Restitution""; ""7.1. Arrest of Basic Telophase Processes""""7.2. Complete Arrest of Cytokinetic Processes at Early Phragmoplast Stage""; ""7.3. Arrest at Early Phragmoplast Stage with Element of Centrifugal Movement: Gamma-Phenotype""; ""7.4. Consolidation of Laggard Chromosomes into the Restitution Nucleus""; ""7.5. Arrest of Phragmoplast Development at the Stage of Hollow Cylinder""; ""7.6. Excessive Curvature of Phragmoplast Fibers during Centrifugal Movement""; ""7.7. Aberration of Phragmoplast Centrifugal Movement""; ""7.8. Arrest of Radial Cytoskeleton System Formation at TII (in â€?â€?Parallel Spindlesâ€?â€? Phenotype) in the Simultaineous Cytokinesis in the Dicot PMCs""