Book excerpt: A thorough understanding of the mechanisms of photosynthesis, regulation of structure and function and the adaptive strategies of oxygenic photosynthetic organisms is central to any effort directed at improving crop productivity and providing sustainable agriculture. Photosynthesis is the most widely researched topic in plant science. Further probing of its mechanisms, regulation and adaptation, employing a variety of modern tools and techniques, is imperative to gain a better insight of this very intricate process. Unravelling the cause of stress impairments and stress tolerance in plants would help in ensuring the optimum production of food, fibres and fuels. Probing Photosynthesis represents the state-of-the-art on photosynthesis and provides details of experimental approaches that have been adopted to understand the complex regulatory and adaptive processes. Its twenty seven chapters have been divided into four sections: Evolution, structure and function; Biodiversity metabolism and regulation; Stress and adaptations; and Techniques. With contributions from leading subject experts from Australia, Canada, France, Germnay, India, Israel, Japan, Sweden, Switzerland, the UK and USA, this comprehensive treatise shall interest researchers and students from all disciplines of plant science and provide a useful reference for courses in plant biochemistry, crop physiology, plant biotechnology and environmental botany.