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All articles tagged with #ros

Hydrogen peroxide reprograms plant oxygen sensing to enable post-flood recovery
science1 month ago

Hydrogen peroxide reprograms plant oxygen sensing to enable post-flood recovery

Submergence reduces O2, stabilizing ERFVII transcription factors by lowering PCO activity to trigger hypoxia responses. After desubmergence, a burst of reactive oxygen species (notably H2O2) inhibits PCOs, stabilizing ERFVIIs even in reoxygenated conditions. These ERFVIIs stay bound to hypoxia-responsive promoters but switch their output to repress hypoxia markers and induce ROS homeostasis and oxidative-stress defenses, coordinating recovery. ERFVII mutants show poorer survival and growth after reoxygenation, underscoring ERFVIIs’ role in post-hypoxia tolerance. The data reveal a direct cross-talk: H2O2 inhibits PCO activity and oxidizes N-terminal Cys, linking O2 sensing to ROS signaling to promote plant survival after flooding.

via Nature|
#erfviis#hypoxia#pco
Russia Plans to Recycle Its Old ISS Module for a New Space Station
space5 months ago

Russia Plans to Recycle Its Old ISS Module for a New Space Station

Russia plans to recycle its aging half of the ISS to form the core of a new space station called ROS, after the current ISS is decommissioned post-2030. The decision follows economic setbacks and geopolitical issues, with concerns about the structural integrity and biological hazards of the Russian modules. The new station aims to maintain collaboration with India and continue orbiting in a similar path as the ISS.

via Jalopnik|
#deorbit#iss#ros
"Unveiling the Secret Weapon: How Tardigrades Achieve Near-Invincibility"
science2 years ago

"Unveiling the Secret Weapon: How Tardigrades Achieve Near-Invincibility"

Scientists have discovered a key mechanism that allows tardigrades to undergo cryptobiosis, a state of death-like dormancy that enables them to survive extreme conditions. The research suggests that reactive oxygen species (ROS) play a crucial role in mediating the process of cryptobiosis by signaling the oxidation of the amino acid cysteine. This finding opens up new avenues for investigating the survival strategies of these remarkable creatures.

via Gizmodo|
#cryptobiosis#research#ros
Fantasy Baseball Week 12: Waiver Wire, Cut List, Streamers, and Two-Start Pitchers.
fantasy-baseball3 years ago

Fantasy Baseball Week 12: Waiver Wire, Cut List, Streamers, and Two-Start Pitchers.

Jeff Zimmerman provides advice on waiver wire and FAAB pickups for fantasy baseball, including bidding recommendations for players like Coco Montes and Elly de la Cruz, as well as insights on prospects like Nolan Jones and Jordan Walker. He also discusses the potential of players like Jose Abreu and Yadiel Diaz, and offers his thoughts on pitchers like Patrick Sandoval and Triston McKenzie.

via fangraphs.com|
#faab#fantasy-baseball#nl-only