cross walls

Listing 1 - 10 from 148 for cross walls

Mycology Glossary - A through B
... Arthrospore asexual spore (conidium) formed by the conversion of a pre-existing hypha. Usually the walls thicken and the cell(s) separates before swelling of each spore. Sometimes further septa ... release of ascospores. May be a slit, pore or an operculum (see operculum). Aseptate lacking cross walls in the hyphae (see septum). Asexual mitotic reproduction, not involving fusion of nuclei and meiosis ...
bugs.bio.usyd.edu.au

On-Line Glossary: C
... nuclear divisions have not been followed by cytoplasmic cleavage. (17) coenocytic. Multinucleate or without cross walls. See syncytium. (17) coenozygote. A cell containing more than one zygote. (22) commensalism. ... . An insoluble polymer that, embedded in waxes, forms the cuticle covering the epidermal cell walls in the aerial parts of higher plants. (16) cutinolytic. Of certain enzymes: able ...
ppathw3.cals.cornell.edu

APSnet Education Center - Lab Exercise - Oomycetes
... as “lower fungi,” they differ from true fungi in several features. Oomycete cell walls contain cellulose (a β-1,4-linked glucan) and the amino acid hydroxyproline, whereas cell ... are haploid or dikaryotic. Oomycetes produce hyphae that are nonseptate (coenocytic), i.e. lacking in cross walls. Asexual reproduction occurs in most Oomycetes by the formation of a structure called a sporangium ...
www.apsnet.org

gloss
... molecules linked by 1,4-Beta-glycositic bonds. The linear cellulose chains in wood cell walls are bound laterally into a linear partially crystalline structure. Chlamydospore - A sexual thick-walled ... dormant state for a long time and enduring unfavorable conditions. (go to example) Septate - With cross walls. (go to example) Seta (Setae) - A large sterile black structure in the hymenium of some ...
www.cals.ncsu.edu

www.seaweed.ie
... surface of the blades in unilocular sporangia (called such because they are not divided by cross walls or locules); the contents of these sporangia divide meiotically and form numerous flagellated zoospores which ...
www.seaweed.ie

Mycology - Structure and Function - Wall Composition
... Construction Introduction Walls surround the cytoplasm in all fungi. Walls are composites of a variety of components. Typically, the walls contain ... constituents of cell walls are synthesised in the cytoplasm, linked in the walls at the hyphal tip and polymerised and cross-linked in ... is laid down. As walls mature, they become more rigid. The rigidity is provided by cross-linking of polymers, thickening ...
bugs.bio.usyd.edu.au

On-Line Glossary: N
... period of retention by the vector after acquisition. (Also termed nonpresistent transmission.) (5) nonseptate. Lacking cross-walls. (4) Northern blot. An RNA blot. This term originated as lab jargon; not a generally ...
ppathw3.cals.cornell.edu

Botany online: Turgor Movements - Cross-section through the Leaf of a Graminea
... Botany online: Turgor Movements - Cross-section through the Leaf of a Graminea Cross-section through the Leaf of a Graminea (Dactylis glomerata) The depicted leaf is folded. A ... lower side (counter bearing). This is opposed by two stripes of large cells with thin walls that unfold the lamina when fully turgescent (photography by W. KASPRIK). © Peter v. Sengbusch - Impressum ...
www.biologie.uni-hamburg.de

template
... proper environmental conditions. Some groups of fungi have hyphae that have septa (sing. septum) or cross-walls produced at regular intervals. Such hyphae (left photo) are said to be septate. Other groups ...
www.cals.ncsu.edu

Cross section through a Rhynia axis
... Cross section through a Rhynia axis PALAEOBOTANICAL RESEARCH GROUP UNIVERSITY MÜNSTER HISTORY OF PALAEOZOIC FORESTS MODES ... adpressions. Plants may also be permineralized. Cell cavities are filled with mineral substance and cell walls may be impregnated too. Common examples are silicifications and coal balls. Taxon / Subject Web Source ...
www.uni-muenster.de

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