Chapter 1114

After Yang Rui's surprise, the field investigation led by Professor Xie Gaoyi didn't get much.

It's also very natural that the discovery of new species is not difficult or simple.

If we organize a Shennongjia species survey, or a survey of the distribution of benthic organisms, it's natural to find dozens of new species. But in the bishop School District of hundreds of universities in Beijing, Badaling Forest Region, we have to rely on luck to find a new species.

Or golden finger.

There is no doubt that Yang Rui has brought over the achievements of later generations. However, from an academic point of view, this has no impact.

This new plant was originally found in a field screening in Badaling forest region. Naturally, the so-called screening is not as simple as field investigation. It's a little too much to describe it as a dragnet inspection. However, from the perspective of field biology, its scale is almost the same. It's nothing more than mesh size.

Such field screening will collect a lot of plant specimens. Whether new species can be found or not depends more on the analysis and identification of standards by scholars.

As Professor Xie said, Peking University alone has thousands of specimens waiting to be examined. If scholars have enough time, it is possible to find dozens of new species, or even hundreds of new species.

However, there are many enthusiasts of biology, but only a few taxonomists have the ability to do identification.

However, Yang Rui's new discovery of the genus echinocephalus will naturally be given priority by Professor Xie. Not only Yang Rui wants to know the result, but the other 24 students also want to know whether there will be new species.

The discovery of new species is very common in academia, but it seems to be a very important thing in the eyes of laymen. After all, ordinary people don't understand the significance of the function of ion channels, but ordinary people often regard the discovery of species as very important, as if a new species has been discovered, It's like a big step forward in human biological science.

For the students, if Yang Rui can find a new species, they will at least get a new conversation. Seeing that the new year is coming, I can tell my college life to my seven aunts and eight aunts when I go home this time.

Otherwise, every time I go back, I will say that I have learned how to do electrophoresis, and everyone will not take it seriously - swimming in electricity is nothing more than a matter of courage. Are there few brave young people in the village? Perhaps, this classmate will be warned by the village head: you are the only college student in the village, but you can't give up your life in order to practice courage.

All in all, the students came to the ion channel laboratory with curiosity.

Not only the students who took part in the field investigation, but also many students who received the news from the biology department. There are many people who are curious about this new species, which may be the first discovered by the students of the Biology Department of Peking University.

Yang Rui decided to use PCR to identify the source for the first time.

PCR It's two years since Yang Rui invented the technology.

It's a natural idea to use PCR technology in biological taxonomy - PCR is a technology for copying and comparing DNA, DNA is biological genetic material, and biological taxonomy needs to find homologous organisms... Therefore, experts in biological taxonomy began to use PCR technology more than a year ago.

However, for the Chinese academic circles in the 1980s, two years has been so short, let alone popularized. The attempt is just at the beginning. The domestic PCR instrument is simple, but the reagent and other things can not be said to be cheap. The most important thing is that most of the students are still in the state of learning the imported knowledge of the previous few years, Just as high school students are not aware of the changes in university textbooks, the overall changes in the domestic biology field are still slow.

As a professor in the Department of Botany at Peking University, Professor Xie also wanted to learn PCR from scratch through his relationship with Yang Rui.

Therefore, after a small amount of communication, Professor Xie directly brought the specimens to Yang Rui's laboratory.

The students swarmed in.

……

Xu anqing looked at the ceiling of the ion channel laboratory.

The newly decorated ion channel laboratory has bright and clean floors, and the ceiling is also made of composite materials, which is quite different from the common gray roof or the white roof painted with paint.

Of course, this level of decoration is not uncommon, Xu anqing did not know how many have been.

However, thinking that this is Yang Rui's territory, and that Yang Rui is the director of this laboratory, Xu anqing feels very strange.

"I was also the second in the national college entrance examination." Xu anqing somehow remembered the past. To say that, Xu Anqing, a junior, has not recalled the college entrance examination for some time. His college career is very smooth, not as good as Yang Rui, but also very smooth. He has also published papers in academic journals. Although it is a Chinese Journal, it is still an achievement that only a few people in Peking University can achieve. In addition, Xu Anqing is also the winner of the school and even the national scholarship. His academic performance has remained before 5% of the grade for a long time. In the grade of less than 100 students, this means that he is always in the top five of the grade.Unlike 30 years later, the students' grades in the 1980s are very valuable. First of all, from the most utilitarian point of view, academic achievement can determine the distribution of graduation, and has a very large weight. Under the national distribution policy, it is not easy for any unit to assign college students. They need to compete and compete. When they finally get the distribution right, they naturally hope to get good students.

The more popular positions, such as the departments and units above the ministerial level in Beijing, if they enroll in ordinary key schools, they basically only need top students. In Peking University, the students with 20% of their academic achievements can successfully go abroad and get full scholarships from developed countries.

In terms of the environment in the 1980s, no matter which one is, it will completely change life, and in the next 40 or 50 years, it will lead a life totally different from that of ordinary students - any road can be basically achieved, no theft, no robbery, no corruption, and five apartments before retirement.

In addition to his academic performance, Xu Anqing's social activities also went smoothly. Although his family background inevitably helped him, he joined the party in his junior year, successfully entered the student union, and then became director of the Logistics Department of the student union. As a member of the student union of Peking University, Xu Anqing also did a lot of work, He also got the qualification to participate in the National University Students' Federation this year. As far as student organizations are concerned, he's almost done the top job.

However, all these achievements, which occasionally made Xu anqing a little proud, were oppressed by a flat ceiling.

The ion channel laboratory, which has been established for more than two years, is showing its splendor.

X X-ray biological wind diffractometer, flow cytometry, environmental scanning electron microscope, isotope ratio mass spectrometer, two-dimensional electrophoresis system, ultracentrifuge, ion chromatography

We don't need to know the instruments themselves, just look at their shape, which is enough to frighten.

In fact, students in the 1980s didn't have the chance to see any science fiction movies, but no matter how they imagined it, I'm afraid they couldn't imagine that one cost 4 million dollars and 6 million yuan, How magnificent the laboratory is.

"Professor Xie, the electron microscope is here." Yang Rui briefly introduced the laboratory to Professor Xie and the students who came with him, and then he brought everyone to the experimental area.

The experimental area is a little crowded, but it's quiet. In such an environment, we naturally become light handed and talk in a low voice.

Xie Gaoyi nodded, came to the scanning electron microscope, looked for a while, a little embarrassed way: "this is Shimadzu i400 electron microscope, I haven't used it."

"Let Zhang Xuetong help with the operation." Yang Rui then called Zhang Xuetong over and started the formal species identification work.

Before the invention of PCR technology, that is, before DNA identification can be realized, microscopic identification is the most commonly used method in morphological identification.

Although most species are so similar at the macro level that it is difficult for ordinary people to distinguish them, at the micro level, there is a huge gap in microstructure, which can be distinguished without special training.

Xie Gaoyi began to observe with high spirits, and he drew pictures by hand while observing, which was very strange.

It didn't take him long to draw, but the shape of the new plant was shown, and people with clear eyes could see the similarities and differences between the stems and leaves.

"Yang Rui, I think you can start to think about it and give it a name." Xie Gaoyi is in a good mood and gives Yang Rui a reassurance.

The voice of discussion is getting louder.

Even Bai Ling looked at Yang Rui in surprise.

It's also very lucky.

Yang Rui asked unconsciously, "what are the requirements for naming?"

"Now it's all double names. The official name has to be Latin. It doesn't matter. I'll translate it for you then. Let's start with the Chinese name. It belongs to the genus echinocephalus, which can't be changed. You can use a name to modify it. It can be a shape, a place name, or a person's name... "When Professor Xie talked about a person's name, all the students around were excited, which made his name immortal. Although few people really care about the name of a plant, what if he could be used as a medicine.

Think about it, ten grams of ginseng with three money angelica and two strains of Yang Ruilan prickle as a medicine guide to drink, any cold has to get rid of it.

"Zhang feilan's head is prickly." Yang Rui's voice interrupted everyone's imagination.

Professor Xie did not hear clearly asked: "is to commemorate who?"

If it's not your name, it's usually in memory of someone.Yang Rui shrugged his shoulders and said, "I decorate it according to its shape. The ring of bristles around its stems and leaves looks like Zhang Fei's beard."

Professor Xie's whole person is not good, busy way: "need not rush to name, need not be so hasty."

"No, it's not rash. I've already thought about it. I'll use it." In Yang Rui's mind, he has come up with a multiple-choice question, which of the following four is not named after a person: Zhang Fei, blue thorn head, lizard, Gaga fern, Bush beetle.

Yang Rui even thought of a good reference answer: the interference item of this question is Bush beetle. In English, bush means bush. Students who choose this item, please don't do English homework in biology class!

……