Cuticle structure

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  • The cuticles of most insect larvae have a variety of melanin patterns that function in the insects’ interactions with their biotic and abiotic environ-ments. Larvae of the armywormPseudaletia separatahave black and white stripes running longitudinally along the body axis. This pattern is empha-sized after the last larval molt by an increase in the contrast between the lines.

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  • Over the past decade, our understanding of plant adaptation to environmental stress, including both constitutive and inducible determinants, has grown con- siderably. This book focuses on stress caused by the inanimate components of the environment associated with climatic, edaphic and physiographic factors that substantially limit plant growth and survival. Categorically these are abiotic stresses, which include drought, salinity, non-optimal temperatures and poor soil nutrition.

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  • Arthropod cuticles play an important role as the first barrier against inva-ding pathogens. We extensively determined the sequences of horseshoe crab cuticular proteins. Proteins extracted from a part of the ventral side of the cuticle were purified by chitin-affinity chromatography, and separated by two-dimensional SDS⁄PAGE. Proteins appearing on the gel were designa-ted high molecular mass chitin-binding proteins, and these proteins were then grouped into classes based on their approximate isoelectric points and predominant amino acid compositions. ...

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