Chlorophyll content analyzer to analyze the relationship between chlorophyll content and disease resistance

During the growth of plants in nature, many different diseases will be encountered. Under such circumstances, plants will compete with each other, adapt, and gradually develop their own resistance. The photosynthesis of crops is an important physiological index. Chlorophyll is the basis of photosynthesis of plants. When pathogens infect plants, they often interact with chloroplasts, resulting in the disintegration of chloroplasts. Severe morbidity and even chlorophyll synthesis are blocked, and symptoms such as leaf chlorosis, yellowing or mosaicism appear. Therefore, the level of chlorophyll content can often objectively reflect the strength of the plant disease resistance. The chlorophyll content of a plant can be determined using a chlorophyll content meter.

C. sojae was used to infect cultivars with different resistance, and then the chlorophyll content in leaves after inoculation was determined. The results showed that the ratio of chlorophyll a/b in leaves of disease resistant cultivars was significantly higher than that of susceptible cultivars, and chlorophyll a/b was initially considered. The ratio can be used as a biochemical indicator of the resistance of soybean varieties to gray spot disease. In turfgrass, it was observed that there was a highly significant negative correlation between chlorophyll content and field morbidity in non-pathogenic leaves. Leaf blight caused a significant decrease in chlorophyll content in turfgrass, but the chlorophyll content of disease-resistant cultivars decreased. Below the susceptible cultivar, it was shown that the change in chlorophyll content is related to the disease resistance of turfgrass.

There was no significant difference in chlorophyll content between susceptible and susceptible varieties and resistant varieties before inoculation. The difference in chlorophyll content was significant after inoculation with powdery mildew, and the chlorophyll content decreased significantly with the prolongation of inoculation time and the increase of disease severity, indicating that the content of chlorophyll Chlorophyll content is closely related to plant disease resistance. However, the quantitative relationship between chlorophyll content and disease resistance, and whether chlorophyll content can be used as one of the markers for resistance to powdery mildew, remains to be confirmed by further studies.

The relationship between plant chlorophyll and its disease resistance was studied by the chlorophyll content analyzer. The results showed that the chlorophyll content in many plants was closely related to various plant disease resistances, but there were also some plant resistance and chlorophyll content. Related. However, the physiological and molecular mechanisms of the effects of chlorophyll content on plant disease resistance remain to be further revealed.

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