China 
Africa 
Explore chapters and articles related to this topic
Anti-Inflammatory Compounds Derived from Marine Macroalgae
Published in Se-Kwon Kim, Marine Biochemistry, 2023
Snezana Agatonovic-Kustrin, David W. Morton
Galacto-glycerolipids are widely found in plants and photosynthetic bacteria. They are a class of compounds, in which galactose is bound at the glycerol sn-3 position in O-glycosidic linkage to diacylglycerol. While phosphoglycerolipids make the primary building blocks of eukaryotic and prokaryotic cell membranes, non-phosphorous galactoglycerolipids are the main building blocks of plant cells (Benning and Ohta 2005). Galacto-glycerolipids are an important part of plant cell membranes where they constitute the bulk of the polar lipids in photosynthetic membranes. Moreover, galactolipids are the most widespread group of non-phosphorous lipids, being the major constituents of the photosynthetic membranes of higher plants, algae, and bacteria (Dörmann and Benning 2002). They account for 80% of the membrane lipids found in green plant tissues. In contrast, to membranes of animals and yeasts, where phospholipids are the main lipid group, galactolipids are major constituents of the photosynthetic membranes of higher plants, algae and bacteria (Dörmann and Benning 2002). Lipids in plants consists mainly of monogalactosyldiacylglycerols and digalactosyldiacylglycerols (MGDG and DGDG) containing one or two saturated or unsaturated fatty acids linked to the glycerol part of the molecule (Figure 9.2). As in higher plants, the proportions of MGDG are higher in the lipids from marine algae exposed to white light (Radwan et al. 1988).
Changes in fatty acid in Tecoma stans grown in mine residues after compost amendment
Published in International Journal of Phytoremediation, 2022
Macario Bacilio-Jiménez, Laura Carreon-Palau, Bertha Olivia Arredondo-Vega, Jessica Alejandra Chávez-Cobian, Rogelio Carrillo-González
Photosynthetic electron transport occurs in thylakoid membranes that display a unique lipid composition. Galactolipids compose about 80% of thylakoid membrane lipids, including 50% monogalactosyl-diacylglycerol (MGDG) and 30% digalactosyldiacylglycerol (DGDG; Apdila and Awai 2018). MGDG is composed mainly of the fatty acids 16:3 and 18:2ω6 and 18:3ω3. Similarly, DGDG is composed of 16:0, 18:0, 18:2ω6, and 18:3ω3 (Xu et al. 2020). Therefore, we expected a higher concentration of PUFA when nitrogen availability was rinsed. The differences in fatty acid changes may be due to the subcellular compartmentalization (Yadav 2010). Verdoni et al. (2001) reported alterations in the fatty acid composition of chloroplast lipids in tomato leaves. The percentage of 18:3ω3 decreased significantly, while 18:1ω9 and 18:2ω6 fatty acid levels greatly increased in primary leaves. Fatty acid analysis may help to identify the best treatment for metal immobilization in mine wastes.