Dr. Kamel A. Abd-Elsalam, PhD, is a Research Professor at the Plant Pathology Research Institute in Giza, Egypt. His research interests include developing plant biosecurity diagnostic tools, understanding fungal pathogen genomes, and creating eco-friendly hybrid nanomaterials for controlling toxigenic fungi and plant diseases. He has published 26 books on nanobiotechnology applications in agriculture and plant protection, and has served as the Editor-in-Chief of the Elsevier book series Nanobiotechnology for Plant Protection and the Series Editor for Applications of Genome Modified Plants and Microbes in Food and Agriculture. He has been ranked among the top 2% of influential scientists in nanobiotechnology for several years.

Dr. Heba I. Mohamed is a Professor of Plant Physiology, Faculty of Education, Biological and Geological Sciences Department, Ain Shams University. Dr. Mohamed has obtained a certificate of recognition in honor of achievement in an international publication that supports Ain Shams University. She obtained an encouragement State Award in Basic Sciences (Biological Sciences) in 2018. She was ranked in the top 2% of the most influential scientists in the world for 2020, 2021, and 2022 by Elsevier and Stanford University.

Preface. Overview of Plant Growth Regulators and their Synthesis. Plant Growth Regulators and Senescence. Fungal Phytohormones: Plant Growth Regulators and Crop Productivity. Implication of Ethylene as a Regulator of Disease Resistance in Plants. Role of Strigolactone in the Alleviation of Biotic Stress in Plants. Prospective Role of Brassinosteroids In Tolerance to Biotic Stress and Plant Defence. Jasmonic Acid: Application for Growth Improvement and Protection against Biotic Stress. Antimicrobial Potential of Salicylic Acid in Plants. Roles of Gibberellins in Plant Defense against Biotic and Abiotic Stress. Plant Phenolics and Oxidative Stress. Brassinosteroid: A Stress-Reliever Molecule for Plants under Abiotic Stress. The Regulatory Function of Polyamines in Plant Abiotic Stress. Karrikin: Regulation of Biosynthesis, Hormonal Crosstalk, and Its Role in Biotic and Abiotic Stress Adaptation. Effect of Phytohormones on Nodulation and Nitrogen Fixation. Cytokinin Signaling in Plant Response to Abiotic Stresses. Plant Nitric Oxide Signaling under Abiotic Stresses. UV Light Stress Induces Phenolic Compounds in Plants. Triacontanol: Role in Abiotic Stress Resistance and Tolerance. Index.