Lipid peroxidation indicates oxidative tissue damage by hydrogen peroxide, superoxide, and hydroxyl radicals resulting in structural alteration of membranes with the release of cell and organelle content, loss of essential fatty acids, and formation of cytosolic aldehyde and peroxide products. Artemisinin stress caused an increase in RO of 8-(3-Chlorostyryl)caffeine Arabidopsis at all concentrations. ROS species react with lipids and lead to formation of highly active peroxy radical, which in turn start a chain propagation reaction. Root oxidizability helps plant roots to avoid the uptake of toxic materials and provides protection by measuring the oxygen diffusing from the roots into the surrounding 5-BrdU environment due to the oxidation of peroxidase; thus, increased RO indicates the enhanced oxidizing ability of peroxidase, as observed in this study. The enhanced RO indicates an increase in respiratory activity, which correlates to enhanced ROS generation. Various researchers also suggest that ROS act as signalling molecules in plants during defence responses, stress responses and programmed cell death. Previously, we found that allelochemicals benzoxazolin one and cinnamic acid decreased the efficiency of photosystem II photochemistry and photochemical fluorescence yield in Lolium perenne, Dactylis glomerata and Rumex acetosa leaves. However, there is no previous study conducted to check the effect of artemisinin on crops/weeds PSII photochemistry, chlorophyll fluorescence quenching and photon energy dissipation. Changes in photochemical efficiency, C assimilation and respiration in response to environmental stresses are common in plants; they reflect metabolic adjustments, which include changes in C allocation and N/C balance. In this study, root-respiration rate increased while C assimilation rate decreased at higher artemisinin concentrations in treated Arabidopsis plant. C consumption through root respiration may cause C starvation when C assimilation is inhibited, and may eventually lead to root death under higher artemisinin stress. Leaf nitrogen contents and uptake are costly in terms of energy supply. The HIV/AIDS pandemic is one of the largest global health concerns, with over 32 million people worldwide living with an HIV infection. The majority of new infections occur through sexual transmission, with 2.6 million new infections annually. Sexual transmission of HIV can be prevented by the use of condoms, but women in developing countries do not always have the option to insist on condom use, often due to cultural or religious practices. As such, women over the age of 15 in developing countries account for the majority of new HIV-1 infections. The development of prevention strategies that can be used by women is urgently needed.