WATER STRESS DOWN SOUTH

Down South in/of Dixie: Rethinking the Tourist South

Shut Down, Don't Stress Out

Chemical reactions lie at the heart of many biological processes, from photosynthesis and respiration to cell signaling and drug metabolism. Thanks to an atmosphere rich in oxygen, many organisms use oxygen to carry out these life processes. But oxygen metabolism produces highly toxic by-products called reactive oxygen species. When oxidation outpaces detoxifying reactions, oxidative stress occ...

Water Quality in South Asia

Correspondence and reprint requests should be addressed to: Dr. Stephen Luby Head, Programme on Infectious Diseases and Vaccine Sciences ICDDR,B GPO Box 18, Dhaka 1000 Bangladesh Email: [email protected] Fax: 880-2-8823963 Water, an essential compound for human life, all too often carries pathogens that cause disease. The article by Tambe et al. illustrates a community where half the time the av...

Different mechanisms of adaptation to cyclic water stress in two South Australian bread wheat cultivars

In the South Australian wheat belt, cyclic drought is a frequent event represented by intermittent periods of rainfall which can occur around anthesis and post-anthesis in wheat. Three South Australian bread wheat (Triticum aestivum L.) cultivars, Excalibur, Kukri, and RAC875, were evaluated in one greenhouse and two growth-room experiments. In the first growth-room experiment, where plants wer...

Down to atomic-scale intracellular water dynamics.

Water constitutes the intracellular matrix in which biological molecules interact. Understanding its dynamic state is a main scientific challenge, which continues to provoke controversy after more than 50 years of study. We measured water dynamics in vivo in the cytoplasm of Escherichia coli by using neutron scattering and isotope labelling. Experimental timescales covered motions from pure wat...