After collecting the moss samples and having a rough understanding of their magic.

Xu Yun immediately confirmed one thing:

This is the reward given by the system!

And judging by the sanitation condition of the surrounding area, its effect seems to be more than just purifying rotten meat.

No doubt about it.

This is a discovery of great value.

Or, to be precise, it should be classified as a preliminary discovery.

Because Xu Yun currently doesn't know its purification method, nor whether the effect is due to the moss plant itself or some microorganism living within it.

Then he carefully stored the moss in the sample box and returned along the original path, climbing back to the surface.

As soon as he surfaced, Guo Yuting and several others waiting there came forward and asked:

"God Xu, did you find anything down there?"

Xu Yun nodded, pondered for a moment, then said:

"There's a suspected unknown discovery, but the specifics can't be concluded yet."

"Well, Xiaoguo, have the workers put the well cover back on and proceed to the next sampling location, I'll explain to the school."

Guo Yuting nodded with a vague understanding:

"Oh, okay."

Then Xu Yun watched the maintenance workers put the well cover back on, ensured it was sealed, then said to Guo Yuting:

"Xiaoguo, remember to meet me on the fourth floor of the Medical Center on Friday, I'll arrange some work for you guys, I have things to do now, I'll leave first."

Without waiting for Guo Yuting to respond, he turned and quickly left the scene.

Currently, he knows nothing about the survivability time of the moss sample and other information, so he needs to return to the lab as soon as possible for testing.

The southeast gate is quite a distance from the Medical Center, one is in the Central District and the other is at the outer corner of the East District, the actual distance is nearly five kilometers.

Therefore Xu Yun had to jog for half an hour before arriving at the bottom of the Medical Center Building.

But during the run, he suddenly noticed something:

Could it be due to practicing the "Lai Fu Sword Technique" in the Northern Song, his physical fitness seems...

Has improved a little bit?

Xu Yun's physique is not considered fat or thin, but due to spending long time in labs and libraries, he has been in a sub-health state.

Running five kilometers is doable, but it was impossible to have such even breathing as now.

Could it be that the physical enhancement gained in the dungeon also feeds back to the real body?

This is quite interesting.

However, considering the urgent task at hand is to study the moss, Xu Yun could only temporarily suppress this curiosity.

He hurriedly entered the elevator and arrived at the laboratory.

When he reached outside the lab.

Qiu Sheng, Li Yi, Ren Yongcun, and Zhou Peiyao and others had already received his notice and were waiting outside the door.

"Old Qiu, Xiaoli, Xiaoren, Xiaozhou."

Xu Yun greeted them one by one, then raised the sample container in his hand and said:

"Time is tight, I won't say any compliments, please kindly help identify this sample."

Qiu Sheng and the others nodded together:

"Understood!"

Previously, when researching Fifth Generation Imidacloprid, Xu Yun specially created a seven-member WeChat chat group to facilitate communication among members.

Just while on the way.

He used the group's voice feature to briefly describe his discovery and asked everyone to quickly get to the lab.

That's why everyone was waiting outside the door now.

Although the project group had already exceeded the deadline and theoretically should be retracted.

But because Xu Yun's Fifth Generation Imidacloprid has a broad prospect, Ke Da generously lent this BSL-3 level lab to Xu Yun indefinitely.

As for the nature of BSL-3...

Involving some sensitive topics, this won't be elaborated further here.

In short, it's configured much higher than ordinary biopharmaceutical labs.

After entering the lab.

Everyone quickly took their positions and swiftly entered experimental mode.

Previously mentioned.

The source of the moss's purification ability has two possibilities:

One, moss is a newly undiscovered plant that can secrete purifying substances.

Two, the moss harbors or parasitizes some, or multiple unknown microorganisms.

Hence, the first thing Xuyun and the rest did was pinpoint the source of the moss's purification ability.

Fifteen minutes later.

Zhou Peiyao looked up from the electron microscope and said to Xu Yun:

"God Xu, I cross-referenced with FOC and the Huaxia Plant Atlas, the moss matches the common aquatic moss in appearance."

"Also, the ITS genes have been tested, showing no signs of mutation, confirming it's not a new species and has no inherent purification ability."

Xu Yun nodded calmly.

Zhou Peiyao's experimental result was clear, directly excluding the first possibility.

Thus, the cleaning effect should be attributed to some microorganism present in the moss.

This answer is not surprising.

Currently, on Earth, already discovered microorganisms—including bacteria, fungi, algae, etc.—total around two million.

As for the undiscovered quantities, they are far greater and fluctuate significantly.

As we all know.

Currently, there are two methods for estimating the number of biological species:

One is directly asking taxonomy experts to extrapolate theoretically how many species worldwide might yet be discovered.

The other method is to extrapolate the numbers of species in fully surveyed areas to estimate the global total.

However, these methods have many assumptions and limitations, making the estimated total species number vary widely.

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