Ad
related to: peroxisome function in plant cells
Search results
Results From The WOW.Com Content Network
The peroxisome of plant cells is polarised when fighting fungal penetration. Infection causes a glucosinolate molecule to play an antifungal role to be made and delivered to the outside of the cell through the action of the peroxisomal proteins (PEN2 and PEN3). [22] Peroxisomes in mammals and humans also contribute to anti-viral defense.
A peroxisome is a type of microbody that functions to help the body break down large molecules and detoxify hazardous substances. It contains enzymes like oxidase, react hydrogen peroxide as a byproduct of its enzymatic reactions. Within the peroxisome, hydrogen peroxide can then be converted to water by enzymes like catalase and peroxidase.
Glyoxysomes are specialized peroxisomes found in plants (particularly in the fat storage tissues of germinating seeds) and also in filamentous fungi. Seeds that contain fats and oils include corn, soybean, sunflower, peanut and pumpkin. [1] As in all peroxisomes, in glyoxysomes the fatty acids are oxidized to acetyl-CoA by peroxisomal β ...
In eukaryotes, catalase is usually located in a cellular organelle called the peroxisome. [30] Peroxisomes in plant cells are involved in photorespiration (the use of oxygen and production of carbon dioxide) and symbiotic nitrogen fixation (the breaking apart of diatomic nitrogen (N 2) to reactive nitrogen atoms). Hydrogen peroxide is used as a ...
All peroxisomal proteins are synthesized in the cytoplasm and must be directed to the peroxisome. [2] The first step in this process is the binding of the protein to a receptor. The receptor then directs the complex to the peroxisome. Receptors recognize and bind to a region of the peroxisomal protein called a peroxisomal targeting signal, or PTS.
Plant 2-Cys peroxiredoxins are post-translationally targeted to chloroplasts, [17] where they protect the photosynthetic membrane against photooxidative damage. [18] Nuclear gene expression depends on chloroplast-to-nucleus signalling and responds to photosynthetic signals, such as the acceptor availability at photosystem II and ABA.
PPARs were originally identified in Xenopus frogs as receptors that induce the proliferation of peroxisomes in cells in 1992. [7] The first PPAR (PPARα) was discovered in 1990 during the search for a molecular target of a group of agents then referred to as peroxisome proliferators , as they increased peroxisomal numbers in rodent liver tissue ...
Structure of a plant cell. Plant cells are the cells present in green plants, photosynthetic eukaryotes of the kingdom Plantae.Their distinctive features include primary cell walls containing cellulose, hemicelluloses and pectin, the presence of plastids with the capability to perform photosynthesis and store starch, a large vacuole that regulates turgor pressure, the absence of flagella or ...