Chapter 28

"It can infect and adhere to other organisms and continue to grow is the main manifestation of the survival state of Ficus heterophylla. We don't know how far it will eventually grow."

Professor Qin continued to explain to the audience, "when we put the banyan tree into the vacuum laboratory and pumped out almost all the air, the banyan tree will die in about half an hour. After observation, we found that all of its heart stopped beating, the blood and black liquor of the whole body stopped circulating, and the corpse phenomenon began to appear. Just like the ordinary organism after the termination of life activities, it needs to be preserved with formalin. This is its state of death. "

"In the dead state, its black liquor loses its activity and is not infectious. When a creature gets close to it, it still has a kind of unconditioned reflex, which is the sound you just saw. We observed with X-ray fluoroscopy that the voice was produced by the extrusion of multiple organs in its throat, and the utterance was inferred to be the last words spoken by the deceased before losing self-consciousness. When they close their eyes, the reflex ends. As for the principle of this unconditioned reflection, it remains to be studied. "

The large screen plays the relevant X-ray perspective video, people can clearly see how the vocal cords, trachea, esophagus, etc. of Ficus heterophylla are strangely squeezed.

The video has a label that says "the tenth day of death". For such a long time, and the tree in front of me has been soaked in formalin, can you still have unconditioned reflex

Gu Jun recalled an animal experiment he had done in class and said to others, "do you think it's like a frog's scratch reflex?"

Cai Zixuan and Xu Hai immediately felt that they had grasped the key point!

"Yes, very much." Wang Ruoxiang turned her eyes and thought in a divergent way: "can those black liquor make the skin function as a receptor? As soon as you approach, it may be that your breath stimulates it, and its afferent and efferent nerves are still alive, so this reflex can occur

"I think so." Gu Jun thought of nodding, "this is really a different kind of creature."

Scratch reflex is a very heavy experiment. They had to first cut off the head of the experimental frog and remove its brain. At this time, of course, the frog was dead. But in a short period of time, when they smeared the frog's abdominal skin with a piece of paper stained with low concentration of sulfuric acid, the frog would scratch the spot with its hind legs, just like a corpse.

This is because frogs have nerve centers in their undamaged spinal cord, and there are multiple reflex arcs in the body, which will be reflected when stimulated.

How the banyan tree can still howl after death may belong to this nature. It's just that the "short-term" after its death is very long for humans, and the external stimulus required for reflex is the proximity of living things.

"Scratch reflex." Listening to their discussion, Professor Gu said a little cold joke: "I was just excited that there are ghosts in the world."

Because Prof. Qin said that this was a non conditional reflex, Gu Jun was not the only one who thought of the scratch reflex. Many teachers and students murmured and discussed it.

We are still surprised, but we can use modern medicine to understand the strange thing, less fear, more shock.

At this time, sun Yuheng of Qingyun university raised his hand and asked, "Professor Qin, what is the situation that the pathogen you said is related to banyan tree? Is this a virus? What is the mode of transmission? "

These three questions are also what every teacher and student wants to know, especially the first question.

Unfortunately, Professor Qin replied, "I can't say more about pathogens here. This is a virus. Fortunately, we have found that there are only two ways for its transmission. One is biological contact with Ficus microcarpa, and the other is direct skin contact with the active black liquor of patients in the period of bereavement

After listening to the answers to the last two questions, we all breathed a sigh of relief, so as long as we put out the banyan tree, the patient isolation control, the situation will not be very bad.

What we are most afraid of is the virus that can be spread by respiratory droplets in close range, and even Ebola virus that can be transmitted through the air.

In contrast, although banyan disease is a little scary, it is possible that those viruses will break out like the great plague of the black death in medieval Europe.

Many teachers and students are determined to overcome SARS, control Ebola, not afraid of a strange banyan disease!

"It may not be just banyan disease that we will face in the future." Professor Qin's calm and solemn words brought them back to the edge of hell. "You should be prepared mentally. This may be just a beginning, not an accident."

Just the beginning? People's hearts are sinking

"I believe we all understand the purpose of this competition." Professor Qin paused, "some things are not suitable for the public to know at the first time, or even never need to know, otherwise, it will cause some unnecessary panic, and the whole social order will be affected. So the state has a secret service like ours. But now I can say that things are changing and now we need more people to run our work. "

People heard the point again, the situation is changing!

I think so. Hundreds of them know the existence of banyan disease with such swagger. Although there is no evidence of mobile phones, even if they spread to the Internet, there is no picture and no truth. They are regarded as making up stories and being deleted in seconds.But this posture, so that they have a certain degree of knowledge, really need them to participate, even if not directly join the secret service.

Sure enough, Professor Qin went on to say, "I'm sorry that not all of you have the qualifications we value. It was the first examination just now, and about one tenth of them passed it. These students will be able to take the next examination. Other people can participate in ordinary skills projects. The state has other arrangements for you, which is a bridge between our department and ordinary hospitals. "

The old man said solemnly, "so you are all employed. The country needs you and more talents. This is not the only selection contest. Your ascending channel will not be blocked. Try your best. "

Professor Qin's eyes gradually turned to the seats of Dongda, and then he said, "as for our department, we need qualifications, one is will, the other is medical technology. We can't do without one. Well, let's all have a rest. "

Gu Jun thought that the situation must have been quite serious. In the case of longkan, the company was suddenly ready to move, and banyan disease

These should not be isolated events, but have a connection that he does not know.

When the words dropped, Professor Qin and a group of judges walked to the aisle. The staff finally pushed the cage back.

The thing disappeared in the stadium, the air was fresher, and the teachers and students felt that the dark clouds above their heads were gone.

Sometimes, ignorance is really a blessing.

Most of the students know whether they have passed this round of assessment. Some people understand that they are really not that kind of qualification. If they stand beside the banyan tree like Gu Jungang, their legs are scared to be soft, even if they have the opportunity, they don't want to join the secret department.

Some people hope and desire to enter the next round and enter the mysterious world. Gu Jun is one of them.

After a while, the shortlist was announced on the big screen, and the names of the students were listed on it, and hundreds of people were watching.

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