Factors influencing chlorophyll synthesis, which elements affect chlorophyll synthesis

Light. It is the main condition that affects the formation of chlorophyll. All wavelengths of visible light promote its synthesis, but in vitro chlorophyll is easily decomposed under strong light.

Temperature. Affects chlorophyll synthesis by influencing the activity of enzymes. Generally, the minimum temperature is 2-4 degrees Celsius, the optimal temperature is 30 degrees Celsius, and the maximum temperature is 40 degrees Celsius.

Mineral elements. It also has a great influence on the synthesis of chlorophyll. Some of them are constituent elements of chlorophyll, and some are activators of enzymes.

Water. Water scarcity not only affects synthesis, but also promotes decomposition.

There are still questions to be asked).

What influences the synthesis of chlorophyllLight is the main condition that affects the formation of chlorophyll. In addition to wavelengths above 680 nm, if the energy value is large enough, all wavelengths of light in visible light can promote the synthesis of chlorophyll. The effect of this factor was verified by experiments in which the green leaves turned yellow in the absence of light, and the yellow leaves turned green under light.

However, in vitro chlorophyll is easily decomposed under strong light.

Temperature. Temperature affects chlorophyll synthesis by affecting the activity of enzymes. In general, the minimum temperature for chlorophyll synthesis is 2 4 ° C, the optimal temperature is 30 ° C, and the maximum temperature is 40 ° C.

Mineral elements Mineral elements also have a great influence on the synthesis of chlorophyll. N and mg are components of the chlorophyll molecule, and the leaves turn yellow when they are missing. Fe, Mn, Cu, Zn, etc. are activators of certain enzymes in the process of chlorophyll formation, which play an indirect role in the formation of chlorophyll.

Magnesium: An essential component of the chlorophyll molecule.

Iron: Although iron is not a component of the chlorophyll molecule, it is an essential catalyst for its synthesis.

Manganese, copper, zinc-molybdenum and other trace elements: these components have at least indirect functions in the synthesis of chlorophyll.

The color of plant leaves is a comprehensive expression of various pigments in leaves. Under the conditions of magnesium and iron deficiency, chlorophyll synthesis is hindered, and plant leaves appear yellow.

Chlorophyll must contain the element mg, and Fe plays an important role in the synthesis of chlorophyll.

Fe is a component of the enzyme required for the synthesis of chlorophyll, and the deficiency of fe will lead to the deficiency of the enzyme for the synthesis of chlorophyll, which in turn affects the synthesis of chlorophyll.

Chlorophyll must contain the element mg in it, and the central atom of the chlorophyll porphyrin ring structure is magnesium.

There are porphyrin rings in its structure, so iron deficiency affects its synthesis; Leaf "chlorosis" is a manifestation of plant iron deficiency, and this greenness loss is first manifested in young leaves; It has a certain effect on the photosynthesis and yield of plants.

1. Light, light is the main condition affecting chlorophyll synthesis.

2. Temperature, which affects the enzymatic reaction.

3. Mineral elements, nitrogen and magnesium are its constituents, and iron, manganese, copper and zinc have catalytic or other effects in the synthesis process.

1.Light: Light is essential for chloroplast development and chlorophyll synthesis.

If there is no light, the leaves of plants will turn yellow, and this phenomenon of yellowing the leaves due to the lack of certain conditions that affects the formation of chlorophyll is called yellowing. However, algae, mosses, ferns, and coniferous plants can synthesize chlorophyll in the dark, and the cotyledons of citrus seeds and the germ of lotus seeds can synthesize chlorophyll in secret, and the mechanism of their synthesis is still unclear.

2.Temperature: The synthesis of chlorophyll is a series of enzymatic reactions and is therefore highly influenced by temperature.

The minimum temperature of chlorophyll formation is about 2 4 , the optimal temperature is 20 30, and the maximum temperature is about 40. Temperatures that are too high or too low will reduce the synthesis rate, and the original chlorophyll will be destroyed. The yellowing of leaves in autumn and the whitening of seedlings after the cold wave in early spring were related to the inhibition of chlorophyll formation by low temperature.

3.Mineral elements: nitrogen and magnesium are the constituents of chlorophyll, and iron, copper, manganese, and zinc are cofactors for enzymatic reactions in chlorophyll synthesis. When these elements are deficient, chlorophyll cannot be formed, and plants suffer from green deficiency, especially nitrogen, which has the greatest effect.

4.Water: Plant water deprivation inhibits chlorophyll biosynthesis and is associated with hindered protein synthesis. When there is a severe shortage of water, it will also accelerate the decomposition of the original chlorophyll, and the synthesis is greater than the decomposition, so the leaves are yellow-brown in drought.

5.Oxygen: Under strong light, when the plant absorbs excess light energy, oxygen participates in the photooxidation of chlorophyll; Hypoxia does not synthesize chlorophyll.

In addition, the formation of chlorophyll is also controlled by genetic factors. Even under suitable conditions, the albino seedlings of rice and maize, as well as the flowers and leaves of flowers, still cannot synthesize chlorophyll.

Chlorophyll is one of the most important pigments associated with photosynthesis in the limb world. is a family of lipid-containing pigments located in thylakoid membranes. The factors that affect chlorophyll synthesis are: sunlight, carbon dioxide, moisture in the soil, mineral elements.

German chemist Wellstedt. At the beginning of the 20th century, the most advanced chromatic separation method of the time was used to extract the substances in the green leaves. After 10 years of hard work, Willyl Stedt used tons of green leaves to finally capture the mysterious substance in the leaves - chlorophyll, it is because of the strange role played by chlorophyll in the plant body that we humans can survive.

For the successful extraction of chlorophyll, in 1915, Wellstedt was awarded the Nobel Prize in Chemistry.

Magnesium: A component of the chlorophyll molecule, which is indispensable.

Iron: Although it is not a component of the chlorophyll molecule, it is an essential catalyst for its synthesis.

Manganese, copper, zinc-molybdenum and other trace elements: these components have at least indirect functions in the synthesis of chlorophyll.