The Model Legume Medicago truncatula

Fully covers the biology, biochemistry, genetics, and genomics of Medicago truncatula

Model plant species are valuable not only because they lead to discoveries in basic biology, but also because they provide resources that facilitate translational biology to improve crops of economic importance. Plant scientists are drawn to models because of their ease of manipulation, simple genome organization, rapid life cycles, and the availability of multiple genetic and genomic tools. This reference provides comprehensive coverage of the Model Legume Medicago truncatula. It features review chapters as well as research chapters describing experiments carried out by the authors with clear materials and methods. Most of the chapters utilize advanced molecular techniques and biochemical analyses to approach a variety of aspects of the Model.

The Model Legume Medicago truncatula starts with an examination of M. truncatula plant development; biosynthesis of natural products; stress and M. truncatula; and the M. truncatula-Sinorhizobium meliloti symbiosis. Symbiosis of Medicago truncatula with arbuscular mycorrhiza comes next, followed by chapters on the common symbiotic signaling pathway (CSSP or SYM) and infection events in the Rhizobium-legume symbiosis. Other sections look at hormones and the rhizobial and mycorrhizal symbioses; autoregulation of nodule numbers (AON) in M. truncatula; Medicago truncatula databases and computer programs; and more.

• Contains reviews, original research chapters, and methods

• Covers most aspects of the M. truncatula Model System, including basic biology, biochemistry, genetics, and genomics of this system

• Offers molecular techniques and advanced biochemical analyses for approaching a variety of aspects of the Model Legume Medicago truncatula

• Includes introductions by the editor to each section, presenting the summary of selected chapters in the section

• Features an extensive index, to facilitate the search for key terms

The Model Legume Medicago truncatula is an excellent book for researchers and upper level graduate students in microbial ecology, environmental microbiology, plant genetics and biochemistry. It will also benefit legume biologists, plant molecular biologists, agrobiologists, plant breeders, bioinformaticians, and evolutionary biologists.

Auteur

Frans de Bruijn was Director of the Laboratory for Plant-Microbe Interaction, a mixed INRA/CNRS research facility with about 100 scientists and support staff in Toulouse, France. He served as Director for two years and is currently Director of Recherche DR1.

Contenu

Volume I

Preface xv

Acknowledgments xvi

List of contributors xvii

Section 1

1.1 General introduction 3
Frans J. de Bruijn

Section 2: Overview chapters 7

2.1 A snapshot of functional genetic studies in Medicago truncatula 9
Yun Kang, Minguye Li, Senjuti Sinharoy, and Jerome Verdier

2.2 Medicago truncatula as an ecological evolutionary and forage legume model: new directions forward 31
Eric J.B. von Wettberg, Jayanti Muhkerjee, Ken Moriuchi, and Stephanie S. Porter

Section 3: Medicago truncatula plant development 41

3.1 Seed development: introduction 43
Frans J. de Bruijn

3.1.1 A physiological perspective of late maturation processes and establishment of seed quality in Medicago truncatula seeds 44
Jerome Verdier, Olivier Leprince, and Julia Buitink

3.1.2 Medicago truncatula an informative model to investigate the DNA damage response during seed germination 55
Anca Macovei, Andrea Pagano, Chiara Forti, Susana Ara*újo, and Alma Balestrazzi*

3.1.3 Transcriptional networks in early Medicago truncatula embryo development 61
Ray J. Rose

3.1.4 Embryo development and the oil and protein bodies in Medicago truncatula 71
Youhong Song, Xin-Ding Wang, Nathan Smith, Simon Wheeler, and Ray J. Rose

3.1.5 Role of thioredoxins and NADP-thioredoxin reductases in legume seeds and seedlings 80
Fran*çoise Montrichard, Pierre Frendo, Pascal Rey, and Bob Buchanan*

3.1.6 Seed shape quantification in the model legumes: methods and applications 92
Emilio Cervantes, Ezzeddine Saadaoui, Ángel Tocino, and Jos*é Javier Martín Gómez*

3.1.7 The underlying processes governing seed size plasticity: impact of endoploidy on seed coat development and cell expansion in Medicago truncatula 99
S. Ochatt and M. Abirached-Darmency

3.2 Root development: introduction 117
Frans J. de Bruijn

3.2.1 Nitrate signaling pathway via the transporter MtNPF6.8 involves abscisic acid for the regulation of primary root elongation in Medicago truncatula 118
Anis M. Limami and Marie-Christine Mor*ère Le Paven*

3.2.2 SCARECROW and SHORT-ROOT show an overlapping expression pattern in the Medicago truncatula nodule central meristem 125
Henk J. Franssen, Olga Kulikova, Xi Wan, Auke Adams, and Renze Heidstra

3.2.3 Lateral root formation and patterning in Medicago truncatula 130
Sandra Bensmihen

3.2.4 Modulation of root elongation by abscisic acid and LATERAL ROOT ORGAN DEFECTIVE/NUMEROUS INFECTIONS AND POLYPHENOLICS via reactive oxygen species in Medicago truncatula 136
Jeanne M. Harris and Chang Zhang

3.2.5 FYVE and PH protein domains present in MtZR1 a PRAF protein modulate the development of roots and symbiotic root nodules of Medicago truncatula via potential phospholipids signaling 144
Julie Hopkins, Olivier Pierre, Pierre Frendo, and Eric Boncompagni

3.3 Leaf development: introduction 153
Frans J. de Bruijn

3.3.1 Compound leaf development in Medicago truncatula 154
Rujin Chen

3.3.2 Mechanistic insights into STENOFOLIA mediated leaf blade outgrowth in Medicago truncatula 173
Fei Zhang, Hui Wang, and Million Tadege

3.4 Flower development: introduction 181
Frans J. de Bruijn

3.4.1 Genetic control of flowering time in legumes 182
James L. Weller, Richard C. Macknight 3.4.2 Forward and reverse screens to identify genes ...