What is the reason for the maple leaves turning red instead of yellow?

Red maple leaves contain a lot of pigments, in addition to chlorophyll, there are lutein, anthocyanins, carotene, etc., when autumn comes, the temperature gradually decreases, the function of chlorophyll is hindered, gradually decreased, replaced by other pigments, the color of the leaves will show red.

The leaves of the red maple are not always red, and when they first grow, they may not be particularly red. In the later maintenance, if there is a problem with the maintenance method, it will also cause the leaves of the red maple to not be red.

If the nutrients are insufficient, it will also cause the leaves to not turn red, so you should fertilize properly, taking care not to apply too much nitrogen fertilizer.

Red maple is a light-loving plant that grows in a well-lit environment, and if there is a lack of sunlight, it can also cause the leaves to be not red.

In autumn, the days are getting shorter and shorter, the temperature gradually drops, and the chlorophyll in the mesophyll cells of plant leaves gradually disappears, leaving carotene.

Lutein. At the same time, a large amount of anthocyanins are produced in the vacuole.

Under acidic conditions, anthocyanins appear red, and thus the leaves appear red, mainly due to the action of anthocyanins.

It is because there are many pigments in the maple leaf, which will turn red after oxidation, so it will turn red instead of yellow.

The chlorophyll in the maple leaves is destroyed due to changes in the composition of other substances in the maple leaves, and the temperature drops, so it becomes a red leaf.

Because maple leaves contain carotene and a large amount of anthocyanins, they turn red when the temperature is lower.

Summary. Hello dear, according to your question description of the situation, the reason why the maple leaves turn red is actually the autumn weather conditions that dye the maple leaves drunk. In addition to chlorophyll, lutein, carrot and other pigments, plant leaves also have a special pigment called anthocyanins, which are red in acidic liquid.

With the change of seasons, the temperature and sunshine increase and decrease accordingly, and the main pigment components in the leaves also change. In autumn, when the temperature decreases and the light decreases, which is beneficial for the formation of anthocyanins, the leaf cell sap of maple and other red-leaved trees becomes acidic, and the entire leaf appears red. Anthocyanins are present in vacuoles.

So it's vacuoles. Hope it helps!

Hello dear, according to your question description of the situation, the reason why the maple leaves turn red is actually the autumn weather conditions that dye the maple leaves drunk. In addition to chlorophyll, lutein, carrot and other pigments, plant leaves also have a special pigment called anthocyanins, which are red in acidic liquid. With the change of seasons, the temperature and sunshine increase and decrease accordingly, and the main pigment components in the leaves also change.

In autumn, when the temperature decreases and the light decreases, which is beneficial for the formation of anthocyanins, the leaf cell sap of maple and other red-leaved trees becomes acidic, and the entire leaf appears red. Anthocyanins are present in vacuoles. So it's vacuoles.

Hope it helps!

The maple leaves change color after being treated with boiling water.

The water that comes out of the maple leaf is red, and the water that has been soaked for three days is black. The maple leaves need to be soaked for more than 12 hours before turning black.

Ten years ago, biologists thought that the change of color in autumn leaves meant little other than a beautiful moment in the life of deciduous trees. The standard explanation for this phenomenon is that these bright colors have been hidden in the foliage all along. It is only when the chlorophyll disappears that they become apparent, like a dying leaf that sheds its coat to reveal its brightly colored garment.

However, it turns out that such a theory is only half right.

Yellow and some degree of orange are already present in the leaves and are the result of chlorophyll "taking off the mask". But the red and fuchsia come from compounds that trees make as they prepare for their winter dormancy.

Research from 30 years ago showed that at the end of the growing season of the leaves, a compound called anthocyanins is produced. The results of the study now clearly prove that this is not unusual. About 10% of tree species in temperate regions turn red in autumn due to the production of anthocyanins over the course of a few weeks.

The question is, why is this happening?

David Lee, a botanist at the International University of Florida in the United States, said: "Plants are often not cute, they are not as attractive as pandas or koalas. However, they have one strong point, and that is autumn leaves.

Everyone can see such a beautiful view. Autumn leaves are poetic. Now we want to figure out the scientific basis for this phenomenon.

The laws of natural selection dictate that there may be a good reason for a species – in this case multiple species – to allow itself to exhibit a certain characteristic or activity trait. The leaves don't turn red for people to see, and this phenomenon must have helped the trees themselves in some way.

What kind of benefits does reddening leaves bring to the survival of trees? There is currently a lively discussion on this topic in a number of scientific journals. In recent years, new data and experimental results have emerged to join the debate.

There are two main points of view.

One view is that trees experience a situation similar to the Dunkirk Retreat in the fall, when trees collect beneficial compounds from dying leaves and store them for later use. The reason why autumn leaves turn red is because the red pigment is involved in this process.

Another view is that the red color signals the leaf-eating (harmful to trees) aphid, which moves in the fall in search of a place to lay eggs. Aphids don't like red, and the message from the leaves turning red is: don't lay eggs here, this is not a good place for you to raise baby aphids.

The chlorophyll in the leaves of the maple tree is not replenished in time and gradually decreases, while the anthocyanins that originally exist in the leaves increase a lot, covering a small amount of chlorophyll, so the leaves appear red.

Because the leaves of the maple tree contain anthocyanins.

In autumn, when the temperature decreases, the air humidity is low, the light is weak, the anthocyanins increase, and the chlorophyll decreases, and it turns red.