Tard Grade’s latest superpower: Fluorescent Protective Shield | science

They may be small creatures with a humorous appearance, but they are among the biggest survivors of a tainted life. Now scientists say they have found a new generation that is unexpectedly proud of the armor piece: a protective fluorescent shield.

Also known as the water bear or moss-colored appetite, tard grades are microscopic, aquatic living creatures, ranging in length from 0.5 mm to 1 mm, with hoverbags scattered with eight legs. Is like

But when their appearance invites a fun comparison, it is their toughness that has affected the fear: the creature can escape space, extreme temperatures and pressures, and intense ionizing and UV radiation.

'Eight-legged perverted hover bag'

An eight-legged spoiled hover bag. Photograph: Science Picture Partner / Getty Images / Collection Mix: Articles RM

One of the survival strategies of teddy bears is their ability to adapt to the state of honor in which they can live for decades, while also producing proteins to protect their cells.

Now another safety mechanism has been discovered that appears to help tread grades deal with potentially deadly UV light, a fluorescent substance that absorbs such radiation and later turns the energy into blue light. Issues as.

“Our study shows that [these creatures] “We can live in the fastest and sunniest places on earth,” said Dr. Sandeep Esurpa, co-author of the research at the Indian Institute of Science.

Writing in the journal Biology Letters, ESURPA and colleagues said they found a new generation of tardy grades in a wall-mounted moss sample on the institute’s campus.

When they exposed the two species, dubbed Paramacrobiotics BLR strain, and another type, A model Up to 15 minutes of UV light, only the former survived. Surprisingly, under the UV light, the new species shone a bluish blue.

To find out more, the team developed an extract from the new species, and covered UV-sensitive tardigrades, A model With this fluorescent substance. The results show that at least some protection has been provided to this extract, which is close to half. A pattern Long live a few days later.

Esurpa said the results were “surprising”. There are other species that show UV tolerance, he said [the new species] Fluorescence is the only mechanism for resistance to deadly UV radiation.

Dr. Okaz Kakzmرکrk, an expert on teddy bears at Adam Muکoz University in Poland, who was not involved in the study, said the study involved previous work that showed that teddy bears were developed to protect the environment from harmful environments. The potential use of the substance is shown.

But Kazmarik said the team has not identified a specific substance responsible for protecting against UV radiation, and also found that such protection would be no less than fluorescence – but – possibly a protective protein.

“We don’t even know if it’s a feature of the species being studied or if the majority of tardigrades are exposed to high levels of UV radiation in the natural environment,” he said.


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