Meet the editor

Afef Najjari is an assistant professor of bioinformatics at the Faculty of Sciences, University of Tunis El Manar in Tunisia. Dr. Najjari has worked on a variety of national and international projects related to genomic and enzymatic diversity in lactic acid bacteria, as well as the diversity and adaptation of extremophilic microbes. Her current research interests include metagenomic data analysis, genome assemblies and annotations, and

the development of biological databases. Dr. Najjari has published several articles in highly ranked journals and has co-edited several books. She has also contributed to building capacity in bioinformatics at national and international levels.

## Contents


Preface

Extremophiles are a group of microbes and organisms that possess the ability to live in extreme physico-chemical and nutritional environments. They include acidophiles, alkalophiles, halophiles, barophiles, (hyper) thermophiles, and psychrophiles. These organisms have evolved several mechanisms to ensure genomic integrity, cell division, and energy conservation in extreme conditions. Recently, researchers have begun to study the phylogenetic relationship between extremophilic microbes through the analysis of their genome sequences, enabling identification of distinctive genes and metabolic pathways involved in the extremophilic way of life. These analyses have provided key data on the functionality of genes across organisms and environments, helping us to track the evolutionary events involved in environmental adaptations at the population and strain level. The six chapters of this book are: (1) Introductory Chapter: Brief Overview of the Diversity of Secondary Metabolite in Extreme

Environment – The Case of Halobacteria Based on Genome Sequence Mining; (2) The Role of Metagenomic Approaches in the Analysis of Microbial Community in Extreme Environment; (3) Genotype-specific Patterns of Physiological, Photosynthetic, and Biochemical Responses in Faba Bean Contrasting Pair to Salinity; (4) Antioxidant Effective Aromatic Compounds; (5) Extremophiles and Limits of Life in a Cosmic Perspective; and (6) Genome Analysis Provides Insights into the Osmoadaptation

**Afef Najjari**

Tunis, Tunisia

Faculty of Sciences of Tunisia, University of Tunis El Manar,

Mechanisms of *Halomonas titanicae*.
