objective: ageing of the stored seed is a natural phenomenon and the seeds tend to lose viability even under ideal storage conditions. accelerated ageing has been recognized as a good predictor of the storability of seed lots. aged seeds show decreased vigor and produce weak seedlings that are unable to survive once reintroduced into a habitat. the characteristics of the chemical composition of...

AIM To investigate the mutation in D-loop region of mitochondrial DNA in gastric cancer and its influence on the changes of reactive oxygen species (ROS) and cell cycle. METHODS The D-loop region was amplified by PCR and sequenced. Reactive oxygen species and cell cycle were detected by flow cytometry in 20 specimens from gastric cancer and adjacent normal tissues. According to the sequence r...

Mesenchymal Stromal Cell (MSC) Ferroptosis As reported in article number 2206439 by Ling Tao, Fuyang Zhang, and co-workers, MSCs are seriously damaged the reactive oxygen species (ROS) after injection into injured liver milieu rapidly deplete due to ferroptosis driven ROS-induced lipid peroxidation, like devouring fire forest threatening entered firefighters. Strategies reducing ferroptosis, su...

Hoffman DL, Salter JD, Brookes PS. Response of mitochondrial reactive oxygen species generation to steady-state oxygen tension: implications for hypoxic cell signaling. Am J Physiol Heart Circ Physiol 292: H101–H108, 2007. First published September 8, 2006; doi:10.1152/ajpheart.00699.2006.—Mitochondria are proposed to play an important role in hypoxic cell signaling. One currently accepted sign...

background: although borage ( borago officinalis l.) is a valuable medicinal plant, no information is available on the responses of this plant to salinity. for this reason, it is necessary to determine responses of this plant to salinity .  objective: since germination and early growth stage is one of the most critical phases of plant life under salinity condition this experiment was conducted ...

Reactive oxygen species (ROS) have been implicated in a variety of age-related diseases, including multiple cardiovascular disorders. However, translation of ROS scavengers (antioxidants) into the clinic has not been successful. These antioxidants grossly reduce total levels of cellular ROS including ROS that participate in physiological signaling. In this review, we challenge the traditional a...

This study focuses on the generation and loss of reactive oxygen species (ROS) in low-temperature atmospheric-pressure rf (13.56MHz) He+O2+H2O plasmas, which are of interest for many biomedical applications. These plasmas create cocktails of ROS containing ozone, singlet oxygen, atomic oxygen, hydroxyl radicals, hydrogen peroxide, and hydroperoxyl radicals, i.e. ROS of great significance as rec...

This mini-review summarizes briefly main facts and speculations on roles of reactive oxygen species (ROS) in plant interactions with pathogenic microflora. Examples relating the infection-induced oxidative burst with innate or acquired resistance or susceptibility are provided. Agents triggering ROS production, ROS sources and ROS-involving defense reactions are listed. Special attention has be...

Plants activate antioxidant defense mechanisms under stress, which help maintaining the structural integrity of cell components and possibly reduces oxidative damage.  Low temperature stress leads to the production of reactive oxygen species and oxidative damage to plants. In this study, the effect of putrescine and proline on reducing the production of reactive oxygen species and increasing th...