Why does the cactus grow stabbing? Why can cactus protect against radiation?

The cactus is loved by everyone because it can protect against radiation, but it is distressed because the long thorn is easy to be stabbed, why does the cactus grow stabbing? Why can cactus protect against radiation?

Why does the cactus grow stinging

The thorn of the cactus is actually evolved from the leaves, because the cactus grows in arid or desert areas, where the sunshine is very strong, very dry, and if the cactus has large leaves, the water will evaporate quickly in the sunlight, eventually causing the cactus to die.

So, in an environment with little water, cactus evolved needle-shaped leaves. In addition, needles can act as self-defense to prevent other animals from eating themselves.

The thick "leaves" of cactus are actually stems! The thorn of the cactus is equivalent to the leaf organ of the plant, in order to adapt to the harsh environment of the desert, it originally has leaves, because the environment is too bad, the leaves become a root of thorns, to reduce steaming pain and maintain their own moisture.

Why can cactus protect against radiation?

One theory is that cactus can survive in desert areas with high UV radiation and has the ability to absorb UV radiation, but there is nothing it can do about the radiation released by computers, mobile phones and other electronic products.

When a person faces the computer screen, the radiation wave travels in a straight line and does not turn. Even if the cactus is really anti-radiation, there is no way to stop it by putting it next to the computer. Biologically speaking, green plants have a certain ability to absorb radiation. But cactus radiation protection has no basis, more is the psychological role of everyone.

As long as you sit in front of the computer, radiation is inevitable. To reduce the damage of radiation to the human body, it is not enough to rely on a pot of cactus.

But the cactus is a natural oxygen bar, that's for sure. Most plants carry out photosynthesis during the day, absorbing carbon dioxide and releasing oxygen; breathing at night, absorbing oxygen and releasing carbon dioxide. And some plants on the contrary, such as cactus is to release carbon dioxide during the day, at night is to absorb carbon dioxide, release oxygen, so that there is a cactus in the room at night, can supplement oxygen, conducive to sleep, do not underestimate the cactus, people are also experts at absorbing dust. Put a cactus indoors, especially hydroponic cactus (because hydroponic cactus is cleaner and environmentally friendly), can play a role in purifying the air.

The difference between cactus and cactus

Families and genera of cactus and cactus

Cactus: cactus is a plant of the genus Opuntia of the family Opuntia. Alias cactus, Guanyin cactus, overlord, fire cactus, etc., are cactus plants.

Cactus: commonly known as grass ball, also known as Changshengqiu, for dicotyledonous plants (Cactaceae) Notocactus plants, cactus is perennial succulent succulent herbs.

Geographical distribution of cactus and cactus

Cactus: there are 70-110 genera and more than 2000 species in the world, often growing in desert and other dry environment, known as "desert hero flower," is a class of succulent plants. It is mainly distributed in the arid areas of tropical and subtropical regions such as South America, Africa, South China and Southeast Asia.

Cactus: hometown in South America, originated in high heat, dry, less rain in the desert, forming a dry, drought-resistant characteristics. The cactus is afraid of the cold and likes to be born in sandy soil with good drainage. Summer is not only the growing period of cactus, but also the full bloom.

The function of cactus and cactus

Cactus:

The main results are as follows: 1. high medicinal value, medicinal method: the whole plant is used as medicine (except thorns). The four seasons can be picked. Dry with fresh or sliced skin. Functional indications: clearing heat and detoxification, relaxing muscles and activating collaterals, dispelling blood stasis and detumescence, detoxifying intestines, cooling blood and relieving pain, moistening intestines and relieving bleeding, invigorating stomach and relieving pain, relieving cough. For gastric and duodenal ulcers, hemorrhoids, acute dysentery, cough; external use to treat mumps, mastitis, carbuncle, boils, external hemorrhoids, snake bites, burns and scalds. Price: 3 yuan, 46,374 yuan per plant.

2. Edible value, edible cactus is one of the vegetables with the highest content of vitamin B2 and soluble fiber.

3. Cosmetology, cut the cactus with a knife and smear its juice on your face. Wash it with water after 15 minutes, which has the effect of whitening and replenishing water.

4. Indoor greening, cactus is called "oxygen bar" at night. Cactus breathing is often carried out at night when it is cool and humid. When breathing, inhale carbon dioxide and release oxygen. At the same time, he is also an expert at absorbing dust.

5. Other functions: cactus contains poisonous alkaloid, which can act on the central nervous system after eating, causing people to have all kinds of illusions. It was an important plant connecting Peruvian local sacrifices with the divine world from the first to the seventh century AD.

Cactus:

1. Ornamental value: in the field of flower horticulture, cactus is used to call the spherical variety of cactus plants as cactus, which is a kind of stem, leaf and flower with high ornamental value. the traditional cactus is planted in the desert and the hydroponic cactus cultivated by plant aquatic mutagenesis technology can not only see its white and tender roots, but also see the lovely little fish swimming between the roots, which is really a feast for the eyes. It is a fine art of hydroponic flowers.

2. Health function: cactus is cold and bitter, containing triterpenes, malic acid, succinic acid, potassium carbonate and other ingredients, with the effect of invigorating qi and activating blood, nourishing stomach, clearing heat and detoxification. It can treat frostbite, tenosynovitis, mumps, scald, insect bite, stomach disease, acute bacillary dysentery, acute mastitis, diabetic foot and so on.

3. Natural oxygen bar: most plants carry out photosynthesis during the day, absorb carbon dioxide and release oxygen; at night, they breathe, absorb oxygen and release carbon dioxide. And some plants on the contrary, such as cactus is to release carbon dioxide during the day, at night is to absorb carbon dioxide, release oxygen, so that there is a cactus in the room at night, can supplement oxygen, conducive to sleep, do not underestimate the cactus, people are also experts at absorbing dust! Put a cactus indoors, especially hydroponic cactus (because hydroponic cactus is cleaner and environmentally friendly), can play a role in purifying the air.

4. Edible value: edible cactus is a succulent plant of the cactus family, which grows in the subtropics. It first originated in Europe and France, and flowed into Vietnam at the end of the 18th century. Then it was introduced into the three islands of the Jing nationality along the coast of Beibu Gulf and Shiwandashan area through Mangjie. After more than one hundred years of evolution, it has formed a green health food with unique local color-edible cactus. In Enping, Guangdong, the local people are commonly known as Le Guo.

5. Medical value: functional indications: treatment of lung heat and cough, blood in sputum, carbuncle swelling, soup fire injury.