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The fecal immunochemical test (FIT) is a diagnostic technique that examines stool samples for traces of non-visible blood, which could potentially indicate conditions including bowel cancer. [1] Symptoms which could be caused by bowel cancer and suggest a FIT include a change in bowel habit, anaemia , unexplained weight loss, and abdominal pain .
Backusella; Sporangium (i.e. a cluster of sporangiospores surrounding a columella (obscured in image by sporangiospores) subtended by a hypha) viewed with bright-field light microscope
Mucor spores or sporangiospores can be simple or branched and form apical, globular sporangia that are supported and elevated by a column-shaped columella. Mucor species can be differentiated from molds of the genera Absidia , Rhizomucor , and Rhizopus by the shape and insertion of the columella, and the lack of stolons and rhizoids .
The identification of this species is not problematic after sporulation event because of its characteristic flask-shaped sporangium with spherical venter and a distinct dome-shped columella and dichotomously branched rhizoid complex. [3] [6] On top of the venter, there is a neck with closed apex with a mucilaginous plug. [6]
Mortierellomycotina reproduce asexually by sporangia that either lack or have a reduced columella, which support the sporangium. [3] Species of Mortierellomycotina only form microscopic colonies, but some make multicellular sporocarps . [ 15 ]
A columella (pl. columellae) is a sterile (non-reproductive) structure that extends into and supports the sporangium of some species. In fungi, the columella, which may be branched or unbranched, may be of fungal or host origin. Secotium species have a simple, unbranched columella, while in Gymnoglossum species, the
Stemonitis axifera requires about 20 hours to finish making its fruit bodies. Of this, eight hours are needed for induction of the sporangia and the development of the stalk and the columella, six hours more for the sporocarps to produce pigment and mature, and an additional six until the spores are discharged.
Mucor plumbeus is a fungus in the family Mucoraceae (subphylum Mucoromycotina) that is very common, abundant and distributed worldwide. [1] [2] Mucor plumbeus is not known to be a plant or animal pathogen; however it is able to elicit an immune response in humans by activating the complement system. [2]
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