UCR Study Finds 4G Boosts Fruit Fly Activity While 7G-13G Exposure Impairs Recovery
Updated
Updated · Universe Today · May 10
UCR Study Finds 4G Boosts Fruit Fly Activity While 7G-13G Exposure Impairs Recovery
8 articles · Updated · Universe Today · May 10
4G exposure left fruit flies hyperactive after they returned to normal gravity, with the higher activity persisting into late adulthood, UCR researchers reported.
7G to 13G exposure produced the opposite effect: flies showed sharply reduced spontaneous movement, slower recovery over weeks, and in some cases remained depressed in activity until near the end of life.
Startle-driven climbing stayed largely intact even under hypergravity, suggesting locomotor systems were not simply damaged; lipid measurements instead pointed to gravity- and time-dependent shifts in energy use.
10 generations raised in hypergravity fared worst, with flies from 7G or higher lineages showing severe daily activity losses that did not rebound, hinting at lasting developmental or epigenetic changes.
The findings, published in the Journal of Experimental Biology, add evidence that gravity shifts can reshape physiology in ways relevant to future space travel between Earth, the Moon, Mars and microgravity transit.
Is our brain's memory of Earth's gravity the biggest obstacle to becoming a multi-planetary species?
What is the minimum gravity needed to prevent our bodies from breaking down during long space voyages?
Will natural human reproduction be possible on Mars, or will off-world colonization require artificial means?