(n.) A tissue of vegetable cells which are thickend at the angles and (usually) elongated.
Example Sentences:
(1) Many characters of leaf (hair, hypodermal cells, palisade layers, intercellular space, distinction between spongy and palisade parenchyma, "palisade ratio", distribution of collenchyma and sclerenchyma, presence or absence of starch grains, calcium oxalate crystals, number, shape and arrangement of bundles of petiole) are useful distinguishing characters.
(2) The collenchyma was degraded in the rumen although with acid phloroglucinol it stained positive for the presence of phenolic compounds.
(3) Those techniques were applied to the study in situ of the walls of actively elongating parenchyma of mung bean (Phaseolus aureus), and pea (Pisum sativum) root and of collenchyma of celery (Apium graveolens) petioles.
(4) The architecture of the expanding wall of mung bean hypocotyl (Phaseolus aureus) and collenchyma of celery (Apium graveolens) was examined using freeze-etching without any cryoprotectant, and surface-replication of frozen-ground and air-dried specimens.
Cuticle
Definition:
(n.) The scarfskin or epidermis. See Skin.
(n.) The outermost skin or pellicle of a plant, found especially in leaves and young stems.
(n.) A thin skin formed on the surface of a liquid.
Example Sentences:
(1) Moreover, the mucoid substances of the sensillum lymph are probably involved in water conservation, since sensilla are prone to water loss, because the overlying cuticle must be permeable to the chemical stimuli.
(2) All the canals open independently at the surface of the cuticle and the substance deposited there is a mixture of proteins and acid mucosubstances.
(3) The second gene lies within an intron of the purine gene and encodes a cuticle protein.
(4) In vitro the epidermis synthesized and secreted both forms into both the cuticle and the medium.
(5) The morphology of the adult female cuticle is discussed.
(6) In all these cuticles the tubular filaments arise from the plasma membrane of the epidermal cells and they contain argentaffin material, regarded as sclerotin precursors, and lipid-staining material, regarded as wax precursors.
(7) Between the cuticle and dermal collagen there are granular deposits which might be immune complexes involving the collagenous component of cuticle.
(8) Eisenia epidermis does not recordably synthesize the cuticle until after wounding (first eight segments removed).
(9) Cuticle morphology identifies two types of sensilla trichodea, two types of sensilla basiconica and one type of sensillum coeloconicum.
(10) At the culmination of each molt, the larval tobacco hornworm exhibits a pre-ecdysis behavior prior to shedding its old cuticle at ecdysis.
(11) A homozygous mutant escaper had weak, completely unpigmented cuticle and unpigmented bristles.
(12) On dark-adaptation of the 11-day adult eye, the rhabdomers move towards the cuticle.
(13) Once the fungus enters the hair cortex just above the hair bulb, it produces myriads of spores that remain trapped and hidden beneath the cuticle for the length of the intact hair.
(14) Thus, during larval growth the cuticle remains flexible and extensible.
(15) C3 conversion products were detected on larval cuticles by eosinophil adherence and by immunofluorescence with C3c antiserum.
(16) Both genes encode 5.5-kilobase mRNAs, similar in size to the mammalian and Drosophila type IV collagen gene transcripts but much larger than the cuticle collagen transcripts of C. elegans.
(17) The facilitation of eclosion by adult colony members appears to be an obligatory process in the development of this species; pupae denied the aid of adult workers during eclosion are unable to remove the pupal cuticle and rapidly succumb.
(18) The antibodies, which were produced in the course of T. spiralis infection in rats, specifically bound to the inner layers of the body cuticle and the cuticle of the hindgut, but not to the cuticle of the esophagus.
(19) Autonomous expression of Met was found both in abdominal cuticle as well as in external male genitalia.
(20) However, late larval worms that expressed the adult cuticle did not express blisters either.