roduction of reactive oxygen species (ROS) by an NADPH oxidase induces a calcium channel to open and root hair elongation to occur, according to a report from Starting with the rhd2 Arabidopsis mutant, which has stunted root growth and very short root hairs, the authors used transposon-tagging methods to identify the RHD2/AtrbohC gene, which encodes an NADPH oxidase that produces ROS. " When we...

Dynein holds still ynein, well-known for moving cargo down microtubules, is now also shown to anchor its cargo at the target site, according to results from Renald Delanoue and Ilan Davis (University of Edinburgh, UK). Dynein’s cargoes include the wingless and runt mRNAs, which concentrate at the apical tip of fly embryos. Delanoue and Davis found that agents that disrupt microtubule function c...

Background: Ovarian cryopreservation is an efficient way to preserve fertility of cancer patients before chemotherapy. This study was designed to evaluate the effect of apha lipoic acid (ALA) on reactive oxygen species (ROS) production and total antioxidant capacity (TAC) of cultured isolated pre-antral follicles derived from vitrified and non-vitrified ovarian tissue. Materials and Methods: Im...

objective: it is well-known that all living cells emit ultra-weak photon emission (upe), which is due to byproducts of chemical reactions in cell metabolisms. it has been shown that reactive oxygen species (ros) in the cells enhances the upe intensity. the magnitude of such upe is extremely weak (i.e. a few to 103 photons/ (sec.cm2)), and the detection of such ultra-weak signals is hardly possi...

Mesoporous Materials In article number 2208316, Xiaohui Ju and co-workers report the design of free-blockage reactive oxygen species (ROS)-responsive mesoporous silica nanoparticles (MSNs) as potential drug delivery systems. Methyl sulfide units are functionalized onto MSNs through co-condensation or grafting pathways. an ROS-rich environment, nanocarriers undergo structure polarity changes rel...