Abstract
The paper is devoted to studying the content of photosynthetic pigments ofSanguisorba officinalisL. leaves at different vegetative growth stages. Plants were obtained from several habitats (a flood forb-dominated meadow, a dry forb-dominated meadow, a birch forest). In the course of the research it was discovered that the concentration of the sum total of chlorophylls and carotenoids in great burnet leaves varied from the minimum values in May (2.58 – 2.82 mg/g) to the maximum values in July (3.07 – 3.70 mg/g) with a subsequent decrease in September (2.49 – 3.08 mg/g). Moreover, the light intensity and moistening of the habitat also have an effect on photosynthetic pigment content.
Highlights
Kemerovo Oblast – Kuzbass is notorious for its severe anthropogenic impact on the environment
The growing anthropogenic pressure has a detrimental effect on plant bodies as they have to adapt to changing external conditions in the process of their vital activity
The study of seasonal pigment dynamics in great burnet leaves from May to September 2019 showed that chlorophyll and carotenoid content changes throughout the entire vegetation period
Summary
Kemerovo Oblast – Kuzbass is notorious for its severe anthropogenic impact on the environment. The chemical and metallurgical industries in the area are well-developed, and in combination with open-pit coal production increase they pollute the nature in the region (i.e. water, air, soil). Another negative influence is a decrease in the native habitat area of many valuable plants, including medicinal herbs. The growing anthropogenic pressure has a detrimental effect on plant bodies as they have to adapt to changing external conditions in the process of their vital activity. Many researchers believe that it is the pigment content that is indicative of the general condition of plant bodies [1, 2] One of plant adaptive responses is the functioning of their photosynthetic pigment apparatus, namely the qualitative and quantitative composition of the pigment system.
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