(n.) Any slender, more or less rigid, bristlelike organ or part; as the hairs of a caterpillar, the slender spines of a crustacean, the hairlike processes of a protozoan, the bristles or stiff hairs on the leaves of some plants, or the pedicel of the capsule of a moss.
(n.) One of the movable chitinous spines or hooks of an annelid. They usually arise in clusters from muscular capsules, and are used in locomotion and for defense. They are very diverse in form.
(n.) One of the spinelike feathers at the base of the bill of certain birds.
Example Sentences:
(1) Lutzomyia is "defined" by thoracic pleural setae and a cibarial bulge, both of which states occur on Old World forms.
(2) Additional observations on some fine structures of Demodex folliculorum under SEM were presented in this paper, including supracoxal spines, hypostome, palpal claws, male and female podosomal setae, leg claw-basal spur, femoral spur, etc.
(3) N-1 methylation of benzo-alpha-carbolines performed with Kitasatosporia setae strain yields corresponding benzo-alpha-iso-carbolines, compounds demonstrating relatively strong cytostatic and antitumor properties.
(4) The large plumose setae are studied in Palaemon serratus (Decapoda) and Sphaeroma serratum (Isopoda) during premolt.
(5) Caminacarus terrapenae differs from the above species by the form of the dorsal shield which extends more anteriorly but lacks anterior winglike elongations and has rounded anterolateral margins, the posteriorly concave shape of the genital sclerite and more sclerotized vaginal wall, the anterodorsal wall of the gnathosomal base which is not ringlike but open with lateral sclerotizations and interior punctations in this species, and structure of the tarsal setae with the presence of smaller heavier setae.
(6) Three types of setae were found on the antenna of workers of C. formosanus.
(7) Larva differs from I. trianguliceps in longer setae of alloscutum, longer ventrolateral tooth of 1st palpal joint and longer medial tooth of coxae I.
(8) The setae and parapodia of Eurythoe complanata, Chloeia flava and Pherecardia striata were examined using histological and scanning electron microscope techniques.
(9) Numerous tegumental pores surrounding setae in surface tubercles are shown.
(10) After larvae hatch, portions of the egg coats and the attachment stalks are retained on the ovigerous setae until the female undergoes her next molt.
(11) The longest setae (sensilla trichodea) are thick walled, socketed, mononeuronic, and non-perforated.
(12) The new species is most similar to Tinaminyssus melloi (Castro) 1948 and T. turturi (Fain) 1962, but differs in (1) possessing only 5 pairs of ventral opisthosomal setae, (2) presence of 3 pairs of enlarged setae on the dorsal opisthosoma at the posterolateral margin of the podosomal plate (1 pair) and at the lateral margins of the opisthosomal plate (2 pairs), (3) elongate shape and larger size of the poststigmatic plates, and (4) chaetotaxy and solenidiotaxy of the legs, especially tarsus I with a cluster of 4 solenida and 1 club-shaped solenidion on the apex of the dorsum.
(13) The differential diagnosis, particularly in comparison with the closely related genera Liga and Amoebotaenia, is presented: Liga possesses an atrial bundle of setae and Amoebotaenia 1 row of well built hooks with a typical blade.
(14) The morphological structure of the spicules and setae of the mandibular brushes and combs and the maxillary brushes are described.
(15) Female swimmerets contain many long "smooth hairs" (long simple setae) on the coxa and rami.
(16) An expert system (SETA) for the management of patients in the CCU environment has been developed.
(17) The fine structure of the integumentary glands and mechanoreceptory setae in Dermacentor marginatus nymphs is described.
(18) The raatio of setae containing cellular contents sthroughout the lumen to those condensed into strands separates stages A2 throught C3...
(19) The formation of brown bodies in the coelomic cavity may result from an aggregation of coelomocytes around offending foreign cells such as bacteria, gregarines, incompatible graft fragments, and altered self structures such as setae or necrotic muscle cells.
(20) Counts of setae in "aureate" (au), spontaneous autosomal recessive mutation of good penetrance and viability, show that the au gene causes a three-fold increase in setation over the normal in the visible abdominal sternites but not in the membranous wings of the tenebrionid flour beetle Tribolium castaneum.
Sporangium
Definition:
(n.) A spore case in the cryptogamous plants, as in ferns, etc.
Example Sentences:
(1) This "belt," usually first observed toward the center of the sporangium, developed without changing thickness or appearance over the surface of the forespore.
(2) It is proposed that simple, eucarpic, monocentric chytrids which discharge zoospores following dissolution of the sporangium wall evolved into multipapilliate species of Rhizophydium and 2 lines of evolution from these species are documented with examples.
(3) The cytoplasmic sporangium cleavage is brought about by the fusion of flagellar sheaths and cleavage vesicles.
(4) The mature resting sporangium (RS) wall of Coelomomyces dodgei (Chytridiomycetes; Blastocladiales) consists of three principal layers: (I) an outer pigmented layer (1.8-2.2 microns) that contains polysaccharide, (II) a middle electron translucent layer (1.3-1.6 microns) comparatively free of polysaccharide, and (III) an inner layer (125 nm) rich in polysaccharide that surrounds the meiospores.
(5) By inference, the sporulation division septum locus is distal to the ultimate normal cell division septum, i.e., proximal to the "old" pole of the B. megaterium sporangium.
(6) With the progress of spore encapsulation, the tyrocidine production migrated from the soluble fraction into the forespore, terminating with the separation of forespores from the sporangium membrane.
(7) Similarity of these bodies to sporangium-like structures is suggested.
(8) Using a transcriptional fusion of the spoIVC gene to the lacZ gene of Escherichia coli, we found that spoIVC expression was turned on at the third to fourth hour of sporulation (at about the developmental stage [IV] that its products are required in spore formation) and that this transcription was largely restricted to the mother cell chamber of the sporangium.
(9) However, a decrease in bacterial toxicity occurred with sporangium lysis.
(10) The transcriptional activity of the two genomes of the sporangium during spore formation was determined by pulse-labeling bacteria with 3H-uracil at different times of sporulation and preparing them for high resolution autoradiography.
(11) It was placed into group 3 of the genus Bacillus on the basis of its cellular morphology, the morphology of the sporangium, and the location of the spore within the cell.
(12) This suggests that the selective incorporation into the sporangium of either the "older" or "younger" chromosome of a vegetative cell does not occur in the course of spore formation.
(13) To investigate whether expression of spoIIM is required in the forespore compartment of the sporangium, we have constructed a new integrational vector, pKSV7, which contains temperature-sensitive replication functions derived from pE194ts.
(14) The electronmicroscopic examination of the colony revealed sporangium containing spores and characteristic dense body and plastids in the spores.
(15) The ability of Achlya to incorporate [1-14C]acetate into lipid was maximal at the time of sporangium formation, and glycerides were the principal component of total lipid to become 14C-labelled at all stages of the life cycle.
(16) The transcellular electric current apparently plays no role in sporangium formation or in spore cleavage.
(17) The peritumoural region of a squamous cell carcinoma of the tongue when examined with light and electron microscope showed nodular bodies in the submucosa with all the distinctive features of 'sporangium and 'spores' of rhinosporidiosis.
(18) A septum within each sporangium divides the forespore from the basal or parasporal portion of the cell.
(19) Sporulation in Bacillus subtilis is a simple developmental system in which a single cell undergoes differentiation to two 'sister' cells, namely the prespore and the sporangium.
(20) Subsequently, the young cell elongates, becomes somewhat deformed, and then emerges through a narrow aperture in the inflexible coats of the spore, finally rupturing the sporangium.