Senescence processes in plants / edited by Susheng Gan. — Oxford ;Ames, Iowa : Blackwell Publishing, c2007.—(58.8437/S475) |
Contents
Contents
Contributors
Preface
1 Mitotic senescence in plants
1.1 Introduction
1.2 Terminology and types of senescence
1.3 Plants exhibit mitotic senescence, postmitotic senescence and cell quiescence
1.4 Mitotic senescence: arrest of SAM
1.5 Role of telomere and telomerase in mitotic senescence
1.6 Closing remarks
2 Chlorophyll catabolism and leaf coloration
2.1 Introduction
2.2 Chlorophyll catabolites
2.3 The chlorophyll degradation pathway
2.4 Chlorophyll catabolic mutants
2.5 Signifcance of chlorophyll breakdown
2.6 The pigments of senescing leaves
2.7 The function of anthocyanins in leaf senescence
2.8 Conclusions and perspectives References
3 Membrane dynamics and regulation of subceilular changes during senescence
3.1 Introduction
3.2 Loss of membrane structural integrity during senescence
3.3 Role of proteolysis in membrane senescence
3.4 Dismantling of membranes in senescing tissue
3.5 Role of autophagy
3.6 Metabolism of membrane fatty acids in senescing tissues
3.7 Translational regulation of senescence
4 Oxidative stress and leaf senescence
4.1 Introduction
4.2 Antioxidative capacity, oxidative stress and life span
4.3 Antioxidants
4.4 ROS signaling
4.5 Role of different cell compartments
4.6 Concluding remarks
5 Nutrient remobilization during leaf senescence
5.1 Overview
5.2 Macro- and micronutrient remobilization
5.3 Nitrogen remobilization
5.4 Outlook
6 Environmental regulation of leaf senescence
6.1 Introduction
6.2 Light irradiance
6.3 Ozone
6.4 Temperature
6.5 Drought stress
6.6 Flooding
6.7 Salinity
6.8 Environmental pollution - toxic materials
6.9 Oxidative stress involvement in environmental regulation of senescence
6.10 Nutrient/mineral shortage
6.11 Atmospheric CO2
6.12 Biotic stress
6.13 Concluding remarks
7 Developmental and hormonal control of leaf senescence
7.1 Introduction
7.2 Developmental senescence: a plant genome is optimised for early survival and reproduction
7.3 Developmental processes that regulate leaf senescence
7.4 Hormonal control of leaf senescence
7.5 Involvement of genome programmes in the regulation of senescence-associated genes
7.6 Integrating hormonal action into developmental senescence
7.7 Outlook and perspectives
8 The genetic control of senescence revealed by mapping quantitative trait loci
8.1 Quantitative traits - what they are and how they are mapped
8.2 Biomarkers of the senescence process
8.3 Correlated developmental events as second-order senescence traits
8.4 G x E and the contribution of biotic and abiotic factors
8.5 Case studies
8.6 Exploitation of QTL mapping for senescence traits
8.7 QTL, senescence, ageing and death
9 Genomics and proteomics of leaf senescence
9.1 Introduction
9.2 Transcriptomics of leaf senescence
9.3 Proteomics of leaf senescence
9.4 Conclusions
10 Molecular regulation of leaf senescence
10.1 Introduction
10.2 Isolation and classification of SAGs
10.3 Regulatory modes of SAGs
10.4 Molecular regulatory mechanisms of leaf senescence
10.5 Conclusions and future challenges
11 Flower senescence
11.1 Introduction
11.2 Flower opening and senescence
ll.3 Model systems
11.4 Hormonal regulation of flower senescence
11.5 Flower senescence and remobilization of resources
11.6 Petal senescence as programmed cell death
11.7 Molecular biology of petal senescence
12 Fruit ripening and its manipulation
12.1 Introduction
12.2 Physiologies of ripening fruit
12.3 Model ripening systems
12.4 Ripening processes and their manipulation
12.5 Summary
13 Genetic manipulation of leaf senescence
13.1 Introduction
13.2 Strategies of manipulating leaf senescence
13.3 IPT-based transgenic techniques for manipulation of cytokinin production
13.4 Development of the SAG 12-1PT autoregulatory cytokinin production system
13.5 Use of the SAG12-1PT to manipulate senescence in crops
13.6 Other strategies for manipulation of leaf senescence
13.7 Closing remarks
Index