It is now two decades since caleosin/peroxygenases (CLO/PXGs) were first recognized as a new class of lipid-associated proteins, and only 15 years since their additional enzymatic functions as a novel class of peroxygenases was discovered. Finally, some intriguing developments in the biotechnological uses of CLO/PXGs are addressed. Plant CLO/PXGs have many roles in both biotic and abiotic stress responses in plants and in their responses to environmental toxins. The enzymatic activities and the spatiotemporal expression of CLO/PXGs are described and linked with their wider involvement in plant physiology. In addition to their highly conserved structures, CLO/PXGs have peroxygenase activities and are involved in several aspects of oxylipin metabolism in plants. This review surveys the structural properties of CLO/PXGs and their biochemical roles. Structurally, CLO/PXGs share conserved domains that confer specific biochemical features with diverse localizations and functions. However, we now know that CLO/PXGs have more complex structure, distribution and functions than oleosins. CLO/PXGs were initially described as a class of plant lipid-associated proteins with some similarities to the oleosins that stabilize lipid droplets (LDs) in storage tissues such as seeds. In addition, it has physical and chemical changes physically, grooves were formed on the surface of the fibers after treatment, and chemically, the fluorine atoms were attached to the surface of the fibers.Ĭaleosin/peroxygenases (CLO/PXGs) are a family of multifunctional proteins that are ubiquitous in land plants and also found in some fungi and green algae. Moreover, a water-repellent cotton fabric has been produced in a short time of treatment (1 min). It was found that the exposure period of the fabric to the plasma has an important influence on the water-repellency property. In addition, weight loss of the fabric and the fastness to washing have been studied. The contact angle was characterized as a function of the plasma exposure period, and the changes in the morphology, chemical structure, and mechanical properties as tensile strength and elongation at break of the fabric have also been investigated. This plasma was ignited at a flow rate of (200 sccm), low pressure (0.5 mbar), and radio frequency (13.56 MHz) with a power of (300 W). Low-pressure, remote radio-frequency (RF) hollow cathode discharge (HCD-元00) SF 6 plasma system has been shown to be a powerful method in cotton fabric finishing to achieve water-repellent property.
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