Contents Preface I Reviews 1 Abiotic stress induced metabolic alterations in crop plants strategies for improving stress tolerance 2 Physiological implications of salt stress and tolerance mechanismsA Hemantaranjan 3 Phosphate transporters in symbiotic arbuscular endomycorrhizal association a bioinformatics approachK Shah R Raghuvanshi and I Singh 4 Investigation of gravitaxis and phototaxis in Euglena gracillisDP Hader J Faddoul M Lebert P Richter M Schuster R Richter SM Strauch and V Daiker 5 Symbiotic and asymbiotic N2 fixationS Kumari and RP Sinha 6 Cyanobacterial biotechnology nutritional interactions in free-living and symbiotic formsA Vaishampayan 7 Development of new generation cephalosporinsK Gaurav K Kundu S Karmakar and S Kundu 8 Cyanotoxins an emerging environmental concernRakhi Bajpai Naveen K Sharma and Ashwani K Rai 9 UV-absorbing compounds in algaeKL Singh and RP Singh 10 Cyanobacteria ? a potent source of pharmaceuticalsRK Singh and TM Mohapatra 11 Cryopreservation-a novel approach for cyanobacterial germplasm conservationKK Choudhary 12 Methods for DNA transfer in filamentous cyanobacteria and strategy to overcome restriction by host-encoded endonucleasesSP Singh RP Sinha and DP Hader 13 Genotoxin induced DNA damage detection recovery and influence on human healthRP Rastogi and RP Sinha 14 HIV present status and future perspectivesRicha SC Singh and RP Sinha 15 Gene expression and regulationA Kumar 17 Terrestrial vegetation community features and diversity attributesRP Shukla II Original contributions 18 Action spectrum of mycosporine like Amino Acid MAA introduction in prorocentrum micans under solar radiationPeter R Richter Walter Helbling Virginia Villafane and Donat P Hader 19 Establishment of callus and cell suspension cultures of withania somnifera L DunalDeepa Srivastava and K Shukla 20 Efecto f yeast extract in cell suspension culture of withania somnifera L DunalDeepa Srivastava and K Shukla 21 Monetary value of lake Ramgarh Gorakhpur UP India a preliminary investigationAnil K Dwivedi Hadi Hasan and Shashi 22 Phytogeographical analysis of Dews District Malwa Region MP IndiaSudip Ray 23 Effect of mine spoils on growth biochemical composition and yield of chickpea Cicer arietinum LRK Rai MR Goyle and N Dwivedi III Special article 24 Searching Internet for scholarly informationJ Sarkar IndexAdvances in Life Sciences provides state of the art information and highlights the current developments in life sciences It encompasses topics on viruses to crop plants comprising seventeen reviews and six original articles For the benefit of graduate and postgraduate students and researchers a chapter on the use of internet for searching scientific literature is included Subjects covered include stress biology phytotaxis biological nitrogen fixation and its biotechnology community ecology microbial production of drugs cosmetics and other bioactive compounds long term storage of useful microbes methods to transfer genes into multicellular organisms and gene expression The book provides an insight in future perspectives in the particular field with extensive bibliographies at the end of each chapter The book will be highly useful and must read for students researchers and professionals in botany environmental sciences agriculture molecular biology and life sciences 506 pp.