This book illustrates the role of photoprotective and radioprotective metabolites from natural sources. Various classes of radioprotective metabolites derived from cyanobacteria, algae, fungi, bryophytes, pteridophytes, gymnosperms, and higher plants have been explained to reinforce the current knowledge in this field. In addition, the book elucidates the potential applications of these metabolites in pharmaceutics, cosmetics, and biomedical sciences that will help develop commercial products in modern anti-radiation therapeutics.    Topics such as stress tolerance environmental strategies, evolutionary tendency, and biosynthetic route of radioprotective compounds for cost-effective large-scale industrial production of the metabolites are also covered in the book. This book will add to the understanding of radioprotective mechanisms and curative measures for various deleterious diseases leading to cancer development. This volume also offers the latest insights into current and upcoming issues that arise from solar and atomic radiations and their amelioration by inherent radioprotective mechanisms of green plants.    This book benefits readers from academia, industry, colleges, and research students to better understand the impacts of various radiations and the development of radioprotective green compounds.

This book provides a cohesive overview of carbon concentrating mechanism (CCM) of photosynthetic microorganisms such as cyanobacteria and microalgae. This unique mechanism is by far the most spectacular physiological process in algal growth and productivity. Due to this fact, the study of CCM has captivated phycologists, algal molecular and cellular biologists, botanists, agriculturalists, crop growers, and most recently algal biofuel researchers, around the world. In the brief, the authors draw a contextual in-depth overview, on the basis of the latest findings, to develop an account of the core concepts regarding state-of-the-art of CCM. Subsequent chapters use this account to explore carbon concentrating mechanism of cyanobacteria and microalgae. They highlight the concise summaries of cutting-edge research and integrated industrial applications of photosynthetic microorganism based CO2 mitigation system, across a wide spectrum of energy and environment. The brief also presents sustainable perspectives of carbon concentrating mechanism in the context of current global energy and environmental challenges.

This study was to investigate the metabolic characteristics of cyanobacteria in organic waste-treatment systems in order to gain a better understanding of their physiological contributions during biological waste-treatment. This in turn would provide some valuable insight into the role of cyanobacteria in the microbial community as well as their potential impact on waste-treatment efficiency. Nostoc muscorum, Synechococcus PCC7942, Spirulina platensis and Anabaena cylindrica have varying tolerance potential to organic compounds and the order of tolerance was almost same in all the strains. We have found that under organic stress, the PSII electron activity also considerably changed. The results agrees that the FIR is a good stress indicator for the four cyanobacteria, Nostoc muscorum, Synechococcus PCC 7942, Spirulina platensis and Anabaena cylindrica, and may be applied in remote sensing of the physiological state of cyanobacteria via LICF or to detect stress event. Proteins involved in the stress inhibition can be studied more. These studies provide insights to design a biosensor.