Synopses & Reviews
Synopsis
This book was written in response to significant recent advances in understanding the mechanisms of parasitism in the Orobanchaceae, and breakthroughs in the control of the parasitic weeds Striga and Orobanche. It consists of 26 contributions by internationally recognized leading scientists. The main book chapters are grouped into two parts:
. Part I The Orobanchaceae and Their Parasitic Mechanisms
. Part II The Weedy Orobanchaceae and Their Control
The first part provides cutting-edge information on all key aspects of plant parasitism, such as the structure, development and function of the haustorium; nutrient transfer and the physiology of the parasite-host association; host reaction to parasitic plants; seed production and germination; the strigolactones and host-parasite signaling mechanisms; the parasite genome, phylogenetics, evolution and epigenetics; and ecology. Topics of the second part include: the problem posed by the weedy parasites; population diversity and dynamics; molecular diagnosis of seed banks; and detailed discussion of the various management strategies, including agronomic, chemical and biotechnological approaches, as well as host breeding for resistance, allelopathy and biological control.
This book is intended for plant scientists, university lecturers and students, agronomists and weed specialists, breeders and farmers, extension personnel and experts in tropical and subtropical agriculture.
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Synopsis
1. Introduction: The parasitic syndrome in higher plants
Henning S. Heide-J rgensen
1.1 Parasitism in plants
1.2 Hemi- and holoparasitism
1.3 The haustorium
1.4 Dispersal and germination strategies
1.5 Host range
1.6 Geographical distribution
1.7 The parasitic plant families
1.8. Parasite look-alike
References
Part I: The Orobanchaceae and their parasitic mechanisms
2. The haustorium and the life cycles of parasitic Orobanchaceae
Daniel M. Joel
2.1 How do we define the haustorium in the Orobanchaceae?
2.2 Life cycles of facultative and obligate Orobanchaceae
References
3. Functional structure of the mature haustorium
Daniel M. Joel
3.1 Introduction
3.2 Haustorium diversity
3.3 Lateral and terminal haustoria
3.4 Morphological features of terminal haustoria
3.5 Roots of hemiparasites
3.6 Morphological features of lateral haustoria
3.7 The anatomical complexity of haustoria
3.8 Tissue organization within the mature haustorium
3.9 The conductive system
3.10 Developmental aspects of the vascular system
3.11 The mature endophyte
3.12 The haustorial neck
3.13 The base of lateral haustoria
3.14 The base of terminal haustoria
3.15 Exceptional haustoria
3.16 Are haustoria homologous to roots?
3.17 Concluding remarks
References
4. Haustorium initiation and early development
Pradeepa C.G. Bandaranayake and John I. Yoder
4.1 Introduction
4.2 Early haustorium development
4.3 Haustorium initiation factors
4.4 Haustorium signal transduction
4.5 Evolutionary origins
4.6 Conclusions
References
5. Haustorium invasion into host tissues
Alejandro P rez-de-Luque
5.1 Introduction
5.2 Preparing for penetration
5.3 Penetration
5.4 Duration of penetration
5.5 Avoiding defences: tricks of war
5.6 Conclusions
References
6. The physiology of the established parasite-host association
James H. Westwood
6.1 General physiological considerations
6.2 Nutrient acquisition and transport
6.3 Direction of movement
6.4 Hormone interactions
6.5 Macromolecules
6.6 Conclusions
References
7. Host reaction to attack by root parasitic plants
Michael P. Timko and Julie D. Scholes
7.1 Introduction
7.2 General mechanisms of host resistance
7.3 Histological characteristics of the host resistance responses
7.4 Genetic Basis of Resistance
7.5 Cell signalling and gene expression in host defence responses
7.6 Conclusions and perspective
References
8. Seed production and dispersal in the Orobanchaceae
Daniel M. Joel
References
9. The seed and the seedling
Daniel M. Joel and Hilla Bar
9.1 Surface structure
9.2 Anatomy
9.3 Water absorption
9.4 Site of signal percep
Synopsis
Summarizes the cutting edge knowledge of all key aspects of the field
Integrates field and laboratory observations
Presents a comprehensive analysis of available and future strategies for parasitic weed control