Phloem has long been recognized for its importance in long–distance transport needed for successful plant growth and development. The advent of new molecular biological methods combined with improved imaging technologies have revolutionized our view of phloem and served as a catalyst to novel phloem research. Phloem: Molecular Cell Biology, Systemic Communication, Biotic Interactions provides an integrative synthesis of our current understanding of this tissue vital to plant development and survival. Phloem: Molecular Cell Biology, Systemic Communication, Biotic Interactions divides its contents into four logical sections. The first section provides a broad overview of phloem biology that will serve as a contextual framework for subsequent sections. The second section looks at the structural and functional components of sieve elements, the sievetube modules. The following sections explore the integral part phloem plays in a variety of long–distance communications that occur within plants. The final section reviews the developing body of research looking at the role of phloem in plant biotic interactions. Providing wide–ranging coverage of the diverse advances in the field of phloem biology and physiology, Phloem: Molecular Cell Biology, Systemic Communication, Biotic Interactions, is an essential reference for anyone interested in the multi–faceted function of this unique plant tissue.
Section A Introduction 1
Chapter 1 Phloem, the Integrative Avenue 3Aart J.E. van Bel and Gary A. Thompson
Chapter 2 Cell Biology of Sieve Element Companion Cell Complexes 8Rosemary G. White
Chapter 3 Fundamentals of Phloem Transport Physiology 30John W. Patrick
Section B Functional Aspects of Structural SE Components 61
Chapter 4 Roles of Plasma Membrane Transporters in Phloem Functions 63Mechthild Tegeder, Yong–Ling Ruan, and John W. Patrick
Chapter 5 Regulation of Sucrose Carrier Activities 102Christina K¨uhn
Chapter 6 Cellular Basis of Electrical Potential Waves along the Phloem and Impact of Coincident Ca2+ Fluxes 122Jens B. Hafke and Aart J.E. van Bel
Chapter 7 Sieve Element Occlusion 141Michael Knoblauch and Daniel Mullendore
Section C Long–Distance Signaling 155
Chapter 8 Sieve Elements: Puzzling Activities Deciphered through Proteomics Studies 157Sylvie Dinant and William J. Lucas
Chapter 9 Endogenous RNA Constituents of the Phloem and Their Possible Roles in Long–Distance Signaling 186Julia Kehr and Anja Buhtz
Chapter 10 The Effect of Long–Distance Signaling on Development 209David J. Hannapel
Chapter 11 Plant Defense and Long–Distance Signaling in the Phloem 227Frank Gaupels and A. Corina Vlot
Section D Biotic Interactions with the Phloem 249
Chapter 12 Role of Phloem Metabolites in Plant Defense 251Jillian M. Hagel, Akpevwe Onoyovwi, Edward C. Yeung, and Peter J. Facchini
Chapter 13 Viroids and Phloem–Limited Viruses: Unique Molecular Probes of Phloem Biology 271Lucy R. Stewart, Biao Ding, and Bryce W. Falk
Chapter 14 Phytoplasmas and Spiroplasmas: The Phytopathogenic Mollicutes of the Phloem 293Allyson M. MacLean and Saskia A. Hogenhout
Chapter 15 Breaching the Sieve Element The Role of Saliva as the Molecular Interface between Aphids and the Phloem 310Torsten Will, James C. Carolan, and Thomas L. Wilkinson
Chapter 16 Behavioral and Molecular–Genetic Basis of Resistance against Phloem–Feeding Insects 328Linda L. Walling and Gary A. Thompson
A color page section appears between pages 40 and 41
Gary A. Thompson is the Associate Dean for Research and Graduate Education, Director of the Pennsylvania Agricultural Experiment Station, and Professor of Plant Sciences in the College of Agricultural Sciences at Pennsylvania State University.
Aart J. E. van Bel is Emeritus Professor and Head of the Department of General Botany and former Director of the Botanical Garden at Justus–Liebig–University.