Cuticle structure

Kusch, M. and Edgar, R.S. (1986) Genetic studies of unusual loci that affect body shape of the nematode Caenorhabditis elegans and may code for cuticle structural proteins. Genetics 113, 621-639. 

A domain family that is considerably expanded in nematodes, relative to vertebrates, is the zona pellucida (ZP) domain (Bork and Sander, 1992). In database searches this domain was found in C. elegans cuticlin-1 (cut-1), a component of the nematode cuticle (Sebastiano et al., 1991), and 33 other C. elegans proteins (Table II). On the basis of disulfide-linked domains that accompany the ZP domain in these proteins, it is likely that they localize to the worm s extracellular matrix. Indeed, it is possible that most of these proteins are components of the worm cuticle. The cuticle structure is the multilayered elastic exoskeleton that determines the worm s body shape. Although vertebrates lack an equivalent... 

Muller et al. (1994) adapted and extended the two-compartment approach. They defined four plant compartments in addition to water cellular lipids, cuticle, structural carbohydrates, and proteins. Their predictive equation is ... 

An important component of the cuticle structure is the cell membrane complex, or CMC, which consists of a (8) proteinaceous layer, sandwiched by two (fJ>) lipid layers. The CMC is the only continuous structure in hair. It acts as a cement between different layers or components of the hair fiber and is responsible for the physical integrity of the hair structure. 

Herbert Oberlander coordinated the section that features chapters on sac-specific selection using chimeric genes potential applications of neuroendocrine research to insect control insect cuticle structure and metabolism molecular aspects of immune mechanisms in insects molecular genetics of nerve insensitivity resistance to insecticides and inhibition of juvenile hormone esterase by transition-state analogs. 

KRAMER ETAL. Insect Cuticle Structure and Metabolism... 

Increased resistance to necrotrophs also could result from changes that increase antibiotic efficiency. Other approaches for these pathogens should aim at increasing constitutive defenses. Such things as higher tannin and lignin concentration, thicker cuticle structure, and increased suberization would be expected to improve resistance. 

Not surprisingly, glyphosate absorption is also affected by species differences in cuticle structure and leaf morphology. Using the track sprayer method, foliar absorption of " C-glyphosate at field use rates with a flat fan nozzle ranged from 20 to 36% in velvetleaf, prickly sida, kochia and RR corn [10, 14]. These results indicated that studies on foliar absorption of glyphosate not only need to employ a relevant method (i.e., track sprayer) but also be conducted in the species of interest. 

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