Plant Hormones in Crop Improvement

1st Edition - February 10, 2023
Imprint: Academic Press
Editors: M. Iqbal R Khan, Amarjeet Singh, Peter Poor
Language: English
Paperback ISBN:
9 7 8 - 0 - 3 2 3 - 9 1 8 8 6 - 2
eBook ISBN:
9 7 8 - 0 - 3 2 3 - 9 1 9 5 5 - 5

Plant Hormones in Crop Improvement examines the signaling pathways and mechanisms associated with phytohormones, with particular focus on stress resilience. The growing populatio… Read more

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Plant Hormones in Crop Improvement examines the signaling pathways and mechanisms associated with phytohormones, with particular focus on stress resilience. The growing population of world and unpredictable climate puts pressure on the agriculture production. Current constraints such as increasing temperatures, drought, salinity, cold, nutrient deficiency, along with biotic interactions trigger exquisitely tuned responsive mechanisms in plants. The main coordinators of all stress-related mechanisms are phytohormones, which can be transported over long distances and play a significant role in controlling physiological, agronomic and growth traits, metabolites and sustained crop productivity. Therefore, understanding the mechanisms influencing the stress responses mediated by phytohormones is crucial to ensure the continuity of agricultural production and food security.　

This book aims to address sustainable agricultural approaches to improve biotic and abiotic stress resilience in crop plants, covering different topics from perception and signaling plant hormones to physiological and molecular changes under different cues.

Plant Hormones in Crop Improvement
is an essential read for students, researchers and agriculturalists interested in plant physiology, plant genetics and crop yield improvement.

Cover image
Title page
Table of Contents
Copyright
List of contributors
Chapter 1. Regulatory role of phytohormones in plant growth and development
Abstract
1.1 Introduction
1.2 Phytohormones and their impact on plant growth and development
1.3 Phytohormones cross talk and regulation of biotic and abiotic stresses
1.4 Conclusions and future perspectives
References
Chapter 2. Deciphering the physiological and molecular functions of phytohormones
Abstract
2.1 Introduction
2.2 Shoot apical meristem maintenance and activity
2.3 Flower development
2.4 Root growth and development
2.5 Senescence
2.6 Conclusion
Acknowledgments
Conflict of interest statement
Author contributions
References
Chapter 3. Regulatory role of phytohormones in the interaction of plants with insect herbivores
Abstract
3.1 Introduction
3.2 Insects of different feeding guilds
3.3 Plant defense responses against insect herbivory
3.4 Early signaling events prior to activation of phytohormones pathways
3.5 Role of defense hormones in plant–insect interactions
3.6 Growth phytohormone–mediated defense responses in plant–insect interaction
3.7 Conclusions
Acknowledgments
References
Chapter 4. Role of phytohormones in regulating agronomically important seed traits in crop plants
Abstract
4.1 Introduction
4.2 Role of auxins
4.3 Role of gibberellins
4.4 Role of cytokinins
4.5 Role of brassinosteroids
4.6 Role of ethylene
4.7 Role of abscisic acid
4.8 Role of jasmonic acid
4.9 Role of strigolactones
4.10 Conclusions and future perspectives
Acknowledgments
References
Chapter 5. Phytohormone signaling in osmotic stress response
Abstract
5.1 Introduction
5.2 Abscisic acid–mediated responses under osmotic stress
5.3 Ethylene-mediated responses under osmotic stress
5.4 Auxin-mediated response under osmotic stress
5.5 Gibberellic acid–mediated responses under osmotic stress
5.6 Cytokinin-mediated responses under osmotic stress
5.7 Brassinosteroid-mediated response under osmotic stress
5.8 Salicylic acid -mediated responses under osmotic stress
5.9 Jasmonic acid–mediated responses under osmotic stress
5.10 Strigolactone-mediated responses under osmotic stress
5.11 Conclusion
References
Chapter 6. Role of phytohormones in plant response to drought and salinity stresses
Abstract
6.1 Introduction
6.2 Abscisic acid
6.3 Salicylic acid
6.4 Jasmonic acid
6.5 Ethylene
6.6 Gibberellin
6.7 Cytokinin
6.8 Auxin
6.9 Brassinosteroids
6.10 Strigolactones
6.11 Crosstalk of phytohormones
6.12 Conclusion
References
Chapter 7. Regulation of plants nutrient deficiency responses by phytohormones
7.1 Introduction
7.2 Major macronutrients for plants
7.3 Hormonal regulation of N deficiency responses
7.4 Hormonal regulation of P deficiency responses
7.5 Hormonal regulation of K+ deficiency responses
7.6 Conclusions
Acknowledgment
References
Chapter 8. Extended role of auxin: reconciliation of growth and defense responses under biotic stress
Abstract
8.1 Diversity of auxin biosynthesis
8.2 Disease resistance or growth
8.3 Counteracting effects of salicylic acid and auxin
8.4 Interactions in jasmonic acid- and auxin-regulated plant responses
8.5 Pathogens produce and degrade auxins
8.6 Stimulation of plant cell growth
8.7 Auxin as signaling molecule
8.8 Modulation of defense responses
8.9 Conclusion
References
Further reading
Chapter 9. Jasmonic acid biosynthesis pathway and its functional role in plants
9.1 Introduction
9.2 Release of linolenic acid for jasmonic acid biosynthesis
9.3 Lipoxygenases
9.4 Allene oxide synthase
9.5 Allene oxide cyclase
9.6 OPDA reductase
9.7 Activation of OPC8:0 before peroxisomal β-oxidation
9.8 β-Oxidation
9.9 Acyl-CoA oxidase
9.10 Peroxisomal multifunction protein
9.11 Keto-acyl thiolase
9.12 Jasmonate resistance 1 (JAR1)
9.13 Conclusions
Acknowledgment
References
Chapter 10. Brassinosteroids in plant growth and development
Abstract
10.1 Introduction
10.2 Brassinosteroids and development of above-ground plant organs
10.3 Brassinosteroids in root development
10.4 Conclusions and future perspective
Acknowledgments
References
Chapter 11. Understanding the role of phytohormones in governing heat, cold, and freezing stress response
Abstract
11.1 Introduction
11.2 Regulation of high and low temperature responses by growth promoting hormones
11.3 Role of auxin in regulating cold and freezing stress response
11.4 Regulation of high and low temperature responses by defense hormones
11.5 Conclusions and perspectives
Acknowledgments
Conflict of interest statement
Author contributions
References
Chapter 12. Drought-induced plant miRNAome and phytohormone signaling cross-talk
Abstract
12.1 Introduction
12.2 Drought-responsive miRNAome
12.3 Drought-induced miRNAome as mediator of phytohormonal signaling cross-talk
12.4 Drought stress–induced miRNAome and epigenetic regulation
12.5 Conclusion
References
Chapter 13. Interaction between the key defense-related phytohormones and polyamines in crops
Abstract
13.1 Introduction
13.2 The main steps of polyamine metabolism
13.3 Salicylic acid and polyamines
13.4 Jasmonic acid and polyamines
13.5 Ethylene and polyamines
13.6 Conclusions
Acknowledgments
Conflicts of interest
Author contributions
References
Chapter 14. Interplay between phytohormones and hydrogen sulfide regulates plant growth and development under normal and abiotic stresses
Abstract
14.1 Introduction
14.2 Cross talk of phytohormones with H2S
14.3 Conclusions and future prospects
References
Chapter 15. Emerging trends in plant metabolomics and hormonomics to study abiotic stress tolerance associated with rhizospheric probiotics
Abstract
Graphical abstract
15.1 Introduction
15.2 Metabolomics: a comprehensive tool to study metabolites
15.3 Plant–microbe interactions: a metabolome insight
15.4 Abiotic stresses and its impact on plants
15.5 Plant metabolic responses to individual abiotic stresses
15.6 Plant hormonomics
15.7 Conclusion
Acknowledgments
References
Chapter 16. The main fungal pathogens and defense-related hormonal signaling in crops
Abstract
16.1 Introduction
16.2 Salicylic acid
16.3 Jasmonic acid
16.4 Ethylene
16.5 Abscisic acid
16.6 The interplay among salicylic acid, jasmonate, ethylene, and abscisic acid in the defense responses of crops
16.7 Conclusions
Acknowledgments
Conflicts of interest
Author contributions
References
Index

M. Iqbal R Khan

M. Iqbal R. Khan is an Assistant Professor of Botany at Jamia Hamdard, New Delhi, India. His current research interests are physiological and molecular mechanisms associated with abiotic stress tolerance in plants. Dr. Khan identified a significant role of phytohormones in the regulation of plant growth and development, which suggested that phytohormones play an important in controlling stress responses, and interact with each other for defense signal networking to fine tune tolerance mechanisms. He is also exploring the regulatory role of other plant signaling molecules and their impact on plant homeostasis especially source-sink relationship under abiotic stresses. He has been recognized as Young Scientist Platinum Jubilee Award, The National Academy of Sciences, India (NASI), and has been recognized as Young Scientist of the Year, receiving the award from Scientific and Environmental Research Institute, India. He has been guest editor of “Ethylene: A key regulatory molecule in plants" in Frontiers in Plant Science.

Affiliations and expertise

Department of Botany, Jamia Hamdard, New Delhi, India.

Amarjeet Singh

Dr. Amarjeet Singh is a scientist and faculty member at the National Institute of Plant Genome Research (NIPGR), New Delhi, INDIA. After obtaining his doctoral degree from University of Delhi, INDIA, he did post-doctoral research at Washington State University, Pullman, USA. His research has provided crucial resources and insights for functional genomic studies in important crop plants such as rice and chickpea. The focus of his research has been the understanding of molecular and functional behaviour of important abiotic stress, hormone and development signalling genes, including protein phosphatases, kinases, calcium transporters and phospholipases. At NIPGR major research focus of the group is to understand the molecular mechanism of nutrient (N P, K) uptake, transport and homeostasis and improving nutrient use efficiency (NUE) in crop plants rice and chickpea. Emphasis is majorly on modulation of root system architecture and genetic manipulation of nutrient transporter and their regulatory proteins. This effort would help in generating crop plants with better NUE, consequently, will result in minimal use of very expensive and polluting chemical fertilizers in agriculture system. Dr. Singh has published about 30 research/review articles in highly reputed, peer-reviewed international journals. Also, he has co-edited a book, and published about 10 book chapters with noted book publishers. For his significant contribution in the field of plant sciences and agriculture, he was selected for the prestigious Membership of National Academy of Sciences (NASI), the oldest science academy in India. He was also awarded the coveted Young Scientist Platinum Jubilee Award (2017) from NASI and Pran Vohra Award (2018-19) from the Indian Science Congress Association (ISCA). He is also conferred with several national and international awards and fellowships during his Ph.D. and post-doctoral research, including SERB-DST Young Scientist award, Young Investigator Award-DBT, D.S. Kothari Post-doctoral Fellowship, Travel Award by American Society of Plant Biologists (ASPB), USA, Travel Award by CSIR-India. He has served as reviewer for several prestigious international journals, such as Plant Cell Reports, Biotechnology and Bioengineering, PLoS ONE, Plant Molecular Biology, Frontiers in Plant Science, Plant Molecular Biology Reporter, Acta Physiologiae Plantarum, Scientific reports, Plant Physiology and Biochemistry and Journal of Plant Growth Regulation.

Affiliations and expertise

National Institute of Plant Genome Research, New Delhi, India.

Peter Poor

Dr. Péter Poór is an assistant professor, who has been leading the Plant Stress Physiology and Photosynthesis Research Group at the Department of Plant Biology of the University of Szeged, Hungary since 2017. His main research area is the investigation of plant defense hormones, and a better understanding of plant defense mechanisms, especially in the dark. As a result of his work, he has published more than 80 international scientific publications to date, to which he has received more than 1,000 citations. In addition to his research work, he participates in the lecturer activities of the Department of Plant Biology, including the teaching of plant cell biology, plant anatomy, photosynthesis, and plant stress physiology. His teaching activities were twice recognized with the Golden Chalk Award based on student votes. In addition, he is an active organizer of university public life, as well as takes part in a wide range of scientific dissemination activities and science organization activities. He is the secretary of the Hungarian Free Radical Research Society and a member of the Hungarian Plant Biology Society. He is also a member of the editorial boards of several international journals (e.g. Frontiers in Plant Science, Journal of Plant Growth Regulation). In 2019, he won the János Bolyai Research Scholarship of the Hungarian Science Academy. In 2018, he received the first prize in the Lecture Series of Young Plant Biologists of the Hungarian Plant Biology Society.

Affiliations and expertise

University of Szeged, Department of Plant Biology, University of Szeged, Szeged, Hungary.

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Plant Hormones in Crop Improvement

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M. Iqbal R Khan

Amarjeet Singh

Peter Poor

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