Illumination is another important factor that affects the growth of algae. Illumination is the energy source for photosynthesis of plants and has important influence on plant growth, morphological structure, photosynthesis and metabolic activities. At suitable temperatures, the greater the illumination, the more energy the algae absorb, and the more photosynthetic products, the faster the algae growth. However, over the appropriate range of light will induce excess active oxygen, causing stress on the algae. The research on the change of laver by setting different conditions through the intelligent artificial climate box is as follows:
When plants are subjected to adverse environmental stress, they will increase the MDA content and soluble protein content of membrane lipid oxidation products. In the temperature experiment, with the increase of culture temperature, the higher the temperature, the higher the content of soluble protein and MDA content, indicating that the algae body has been subjected to more severe stress. Low salinity caused an increase in MDA content, indicating that the membrane lipids of the algae were more oxidized. In the intelligent artificial climate chamber experiment, a significant increase in soluble protein and MDA content in the high light experimental group was also found.
The different culture conditions of the intelligent artificial climate box have a significant effect on the photosynthetic pigments of the long leaf of the laver. In the temperature experiment, the Chl.a content of the algae was the highest at 20°C. The increase in temperature caused a decrease in the Chl.a content, but the phycobiliproteins showed an upward trend. With the increase of the Car content, the appearance of the algae was increased. red. Under low salt (<25) conditions, the contents of Chl.a, carotenoids, and phycobilisomes in the leaves of long-seaweed were all decreased, and the algae exhibited a lighter, lighter, thinner thickness and other characteristics. Physical photosynthesis capacity weakened. Low illumination will increase the content of Chl.a, R-PE and R-PC in the algae to obtain more energy. In light experiments, the Chl.a and R-PC contents of the leaves of long seaweed were found in the low light group. The rise.
After experiments in the intelligent artificial climate chamber, it was found that the Haematococcus larvae kept a relatively high relative growth rate under low light (≤6000 lx); under the light conditions of 9000 lx, algae remained relatively high for a short period of time (4 d). The growth rate, but then it dropped sharply, the algae decline quickly, indicating that the algae cells can no longer maintain normal growth.
E Bike/Electric Dimensions
If you purchase a power assisted Electric Bicycle, the bicycle shop owner will definitely recommend a suitable size for you based on your height and configuration preferences. What size of electric scooter to choose? Height is an unavoidable factor. Although the saddle can be adjusted up and down, it depends on the size of the frame to a certain extent. In most cases, E Bike Shops will have a size that suits you. If you have special requirements for the size of Electric Bicycles, you can also submit your requirements to the bicycle shop owner. There are generally two sizes of bicycles in our home, one is suitable for 15 inches in height ranging from 160cm to 170cm, and the other is suitable for heights above 175cm. In addition to height, there are certain requirements for choosing a Lithium Battery Electric Bike based on the weight of the rider. You can communicate with the bicycle shop owner carefully according to your actual situation.The bicycle shop owner will definitely give you appropriate purchasing suggestions.
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