Type: Chapter

Advances in the understanding of barley plant physiology: factors determining grain development, composition, and chemistry


Ljudmilla Borisjuk

Leibniz Institute of Plant Genetics and Crop Plant Research (IPK)

Hardy Rolletschek

Leibniz Institute of Plant Genetics and Crop Plant Research (IPK)

Volodymyr Radchuk

Leibniz Institute of Plant Genetics and Crop Plant Research (IPK)

Publication date:

13 January 2020

ID: 9781838799823

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Crop improvement depends on fast and continuous scientific progress. Recent technological advances have led to remarkable breakthroughs in barley genomics and grain physiology. This chapter aims to highlight the progress in our understanding of barley grain, its functional architecture, and energy metabolism shaped by the constraints of internal hypoxia. The authors provide a current view on the relevance of programmed cell death for grain development, and mechanisms regulating sugar intake. Finally, the authors discuss the outcome of multiscale metabolic modeling studies and how they have advanced our understanding of grain physiology. This provides an insider’s view on the life of the developing barley grain and raises new questions, which remain to be answered by applying the most advanced approaches, including nuclear magnetic resonance imaging.

Table of contents

1 Introduction
2 Spike growth and how it influences traits of the grain
3 Role of cell death in barley grain development
4 Sucrose allocation during the grain-filling stage
5 The use of starch in the developing caryopsis
6 Proteins and barley grain quality
7 Particularities of energy metabolism in barley grain
8 Functional orchestration of the barley grain
9 Conclusion
10 Acknowledgements
11 Where to look for further information
12 References