Composition of the Low Molecular Weight Metabolome of Potamogeton perfoliatus (Potamogetonaceae) as an Indicator of the Transformation of the Ecological State of the Littoral Zone

IF 0.8 4区 生物学 Q4 MARINE & FRESHWATER BIOLOGY Inland Water Biology Pub Date : 2024-09-19 DOI:10.1134/s1995082924700202
J. V. Krylova, E. A. Kurashov, E. V. Protopopova, V. V. Khodonovich, E. Ya. Yavid, G. I. Kuchareva
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Abstract

The composition and nature of changes in the low-molecular-weight metabolome (LMWM) of Potamogeton perfoliatus L. growing in six biotopes of Lake Ladoga with different types of anthropogenic load have been analyzed. According to the results, it is found that the total number of low-molecular-weight organic compounds (LMWOCs) in the P. perfoliatus LMWM composition is directly dependent on anthropogenic load, which is well marked by the development of cyanobacteria. The greater the intensity of pollution or eutrophication of waters, or the higher the number of cyanobacteria, the lower the total number of LMWOCs and their concentration. A strongly pronounced dependence of the total concentrations of groups of LMWM compounds on the anthropogenic disturbance of the biotope and the concentration of cyanobacteria is revealed. A decrease in the number, relative amount, total concentration of carboxylic acids, and number and content of unsaturated fatty acids and an increase in the composition and content of phenols and the total content of aldehydes and ketones depends on an increase in anthropogenic pressure. The specific composition of the LMWM of claspingleaf pondweed depends on its response to biotic and abiotic factors of the aquatic (including anthropogenic) environment. The features of the change in the composition of the P. perfoliatus LMWM make it possible to use it as an integral indicator of the anthropogenic impact on the littoral biotopes of water bodies and the deterioration of their ecological state.

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作为滨海区生态状况变化指标的波多格顿(Potamogetonaceae)低分子量代谢组的组成
摘要 分析了生长在拉多加湖六个生物群落中不同类型人为负荷下的Potamogeton perfoliatus L.低分子量代谢组(LMWM)的组成和变化性质。结果发现,Potamogeton perfoliatus LMWM 组成中低分子量有机化合物(LMWOCs)的总数直接取决于人为负荷,而蓝藻的发展则是人为负荷的明显标志。水体污染或富营养化程度越高,或蓝藻数量越多,LMWOCs 的总量及其浓度就越低。结果表明,LMWM 组化合物的总浓度与生物群落的人为干扰和蓝藻浓度密切相关。随着人为压力的增加,羧酸的数量、相对数量、总浓度以及不饱和脂肪酸的数量和含量减少,酚的成分和含量以及醛和酮的总含量增加。抱子甘蓝低分子量甲壳素的具体组成取决于其对水生(包括人为)环境的生物和非生物因素的反应。根据抱子甘蓝 LMWM 成分变化的特点,可以将其作为人类活动对水体沿岸生物群落的影响及其生态状况恶化的综合指标。
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来源期刊
Inland Water Biology
Inland Water Biology 生物-海洋与淡水生物学
CiteScore
1.30
自引率
55.60%
发文量
87
审稿时长
6-12 weeks
期刊介绍: Inland Water Biology publishes thematic reviews and original papers devoted to flora and fauna in waterbodies, biodiversity of hydrobionts, biology, morphology, systematics, ecology, ethology, ecological physiology and biochemistry of aquatic organisms, patterns of biological cycle, structure and functioning of aquatic ecosystems, anthropogenic and uncontrolled natural impacts on aquatic organisms and ecosystems, invasion of nonindigenous species into ecosystems and their ecology, methods of hydrobiological and ichthyological studies.
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