Yellow Mold

Common Names The Yellow Mat Disease Yellow Mold Confetti Disease. 

Latin Root From chryso- meaning golden and sporium or spore. 

Habitat Frequency of Occurence Saprophytic, a common mold in soils, and endemic to composts prepared in direct contact with the ground. Although Chlysosporium species naturally inhabit the dung of most pastured animals and of chickens, today they are rarely seen in finished mushroom composts with the development of modern composting methods. 

Medium Through Which Contamination Is Spread Air soil and dung. Measures of Control Concrete surface used for composting isolation of mushroom compost from areas where untreated soils and raw dung are being stored and filtration of air during Phase II If Chlysosporium occurs before or at the time of casing, salt or a similar alkaline buffer can be applied to limit the spread of infection. 

Macroscopic Appearance Whitish at first, soon yellowish towards the center and maybe yellowish overall in color, forming a corky layer of tissue between the infected compost and the casing soil, and inhibiting fruitbody formation. 

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A similar structure was seen in Aspergillus oryzae, the Japanese yellow mold (75). Trans-unsaturated hydroxy fatty acids ( 2-hydroxyoctadec-3-enoic acid) found in F. amygdali and A. oryzae cerebrosides have not been detected in sphingolipids of animals and plants. 

Class Fungi Imperfecti Order Moniliales Family Tuberculariaceae Common Name Yellow Mold. 

Figure 202 Drawing of cushion shaped sporulating structure typical of Epicoccum, a yellow mold.

Common Names Yellow Mold White Mold. 

Injection molding of styrene-based plastics is usually carried out at 200—300°C. For ABS polymers, the upper limit may be somewhat less, because these polymers tend to yellow somewhat if too high a temperature and/or too long a residence time are imposed. 

Blumen blatt, n. petal. erde, /, garden mold, gelb, n. any yellow flower pigment. kohl, m. cauhflower, seite, /. (Leather) hair side, staub, m. pollen. tee, m. imperial tea. topf, m. flower pot. 

Rigid 1.45 Distorts Yellows Clear 6500 0.5-150 Stiff Can burn Molded parts... 

Acrylic 1.19 Distorts Yellows High clarity 10,000 2-15 Stiff Easy Molded parts... 

Delayed action cytotoxins that inhibit the synthesis of nucleic acids. They are obtained from various molds/fungi (Aspergillus flavus, Aspergillus parasiticus). They are colorless to pale-yellow crystalline materials melting above 450°F. The "B" toxins fluoresce blue in the presence of UV light while the "G" toxins fluoresce green. They are only slightly soluble in water, but are soluble in methanol, acetone, and chloroform. Aqueous solutions are "probably stable" and "probably tolerant" to chlorine at purification concentrations. 

Rapid-acting dermally hazardous cytotoxin that inhibits protein synthesis and affects clotting factors in the blood. It is capable of producing incapacitating or lethal effects. T2 is obtained from various molds and fungi (Fusarium sp.). It is a colorless crystalline solid of white powder that melts at 304°F. Impure samples may be a colorless to slightly yellow oil. It is slightly soluble in water, but soluble in ethyl acetate, acetone, ethanol, chloroform, methylene chloride, diethyl ether, and dimethyl sulfoxide (DMSO). It is heat stable and can be stored at room temperature for years. 

P.Y.212 is not recommended for exterior use, but provides an excellent value for interior applications such as packaging and household durables of all types. Pigment Yellow 212 is tinctorially quite strong as metallized azos go and exhibits very good dimensional stability, making it very useful in molded items such as blow molded containers. 

Symptoms Yellow patches on upper leaf surfaces, with corresponding patches of mold beneath in damp weather. Large areas of a leaf may be infected and the leaf may die. Onions rot in store. Most common in damp and humid growing situations. 

Symptoms Fluffy, grayish-white mold on infected areas (see p.89). Where stems are infected, growth above the infection will yellow and wilt. Flowers— for example, of strawberries—may be infected, but symptoms may not show until the fruits start to ripen. 

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