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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 site began in 1998 as a pen and paper questionnaire called the Harvard Cancer Risk Index. [2] In January 2000, The Harvard Cancer Risk Index developed into an online assessment and was renamed Your Cancer Risk, and offered assessments for four cancers: breast, colon, lung, and prostate. Six months later, eight additional cancers were added. [3]
A sporangium (from Late Latin, from Ancient Greek σπορά (sporá) 'seed' and ἀγγεῖον (angeîon) 'vessel'); pl.: sporangia) [1] is an enclosure in which spores are formed. [2] It can be composed of a single cell or can be multicellular. Virtually all plants, fungi, and many other groups form sporangia at some point in their life cycle.
The term columella is also used to refer to story 1 to story 4 (S1 – S4) cells in the root cap, located apically of the quiescent centre. [citation needed] In vascular plants, columella tissue helps the roots to perceive gravity. Within columella cells, the amyloplasts and Golgi apparatus organelles tend to fall to the bottom third of the ...
Rhizopus is a genus of common saprophytic fungi on plants and specialized parasites on animals. They are found in a wide variety of organic substances, including "mature fruits and vegetables", [2] jellies, syrups, leather, bread, peanuts, and tobacco.
Cancer slope factors (CSF) are used to estimate the risk of cancer associated with exposure to a carcinogenic or potentially carcinogenic substance. A slope factor is an upper bound, approximating a 95% confidence limit , on the increased cancer risk from a lifetime exposure to an agent by ingestion or inhalation .
Although these fungi only grow to be 2–4 cm (0.8–1.6 in) tall, they can shoot their sporangium, containing their spores, up to 2 m (6.6 ft) away. Due to an increase of pressure in the vesicle , the sporangium can accelerate 0–45 mph in the first millimeter of its flight, which corresponds to an acceleration of 20000 g .
In mycology, a sporangiole is a specialised spherical sporangium produced by some species of fungi, smaller than or secondary to the typical sporangium. [ 1 ] [ 2 ] [ 3 ] References