Microwave Interferometry Measurements of Yeast Cell Suspension and Sediment Process

2020 ◽  
Author(s):  
M. Zhang ◽  
T. Markovic ◽  
B. Nauwelaers
Keyword(s):  
Yeast Cell ◽  
Cell Suspension ◽  
Microwave Interferometry

scholarly journals Effect of Formulated Yeast in Suppressing the Liberation of Botrytis cinerea Conidia

Plant Disease ◽  
2002 ◽  
Vol 86 (11) ◽  
pp. 1265-1270 ◽  
Author(s):  
Darryl W. M. Cook
Keyword(s):  
Biological Control ◽  
Yeast Cell ◽  
Cell Suspension ◽  
Botrytis Cinerea ◽  
Fine Powder ◽  
Actinidia Deliciosa ◽  
Management Tool ◽  
Dry Powder ◽  
Epidemic Development ◽  
Leaf Disks

Eight yeast isolates that bound directly to Botrytis cinerea germlings were assessed for the ability to suppress spore liberation of conidia from B. cinerea. After the yeast cell suspension from each isolate was mixed with cellulose and dried, the product was milled into a fine powder. This yeast-cellulose formulation was applied as a dry powder to sporulating B. cinerea colonies on kiwifruit (Actinidia deliciosa) leaf disks, where the particles from the formulation attached to conidiophores and conidia. Some of these formulations significantly suppressed the liberation of conidia from treated colonies. Suppression of conidial liberation could provide another management tool for the biological control of sporulating B. cinerea with applications during late epidemic development. Using α-cellulose prepared with Candida pulcherrima in the conditions imposed in the present study, there was an approximately 50% reduction in the number of conidia released with the treatment of the B. cinerea lesions. The suppression of disease through a reduction in the population of liberated conidia is discussed.

Factors affecting the performance of crossflow filtration of yeast cell suspension

1993 ◽  
Vol 41 (6) ◽  
pp. 617-624 ◽  
Author(s):  
Takaaki Tanaka ◽  
Ryoji Kamimura ◽  
Kazutaka Itoh ◽  
Kazuhiro Nakanishi ◽  
Ryuichi Matsuno
Keyword(s):  
Yeast Cell ◽  
Cell Suspension ◽  
Crossflow Filtration ◽  
Factors Affecting

scholarly journals Candidin: comparison of two antigens for cutaneous delayed hypersensitivity testing

1996 ◽  
Vol 38 (6) ◽  
pp. 397-399 ◽  
Author(s):  
Celeste Fava-Netto ◽  
Walderez Gambale ◽  
Júlio Croce ◽  
Claudete R. Paula ◽  
Sérgio de C. Fava
Keyword(s):  
Candida Albicans ◽  
Yeast Cell ◽  
Cell Suspension ◽  
Yeast Cells ◽  
Delayed Hypersensitivity ◽  
Intradermal Test ◽  
Skin Tests ◽  
Polysaccharide Antigen ◽  
Discussion Section ◽  
Positive Skin

A candidin, which is a suspension of killed yeast cells, is commonly used for intradermal tests of delayed hypersensitivity, to evaluate the immunological cellular competence of the patient, when the test is applied along with other similar tests. When working with a cellular antigen, the histopathology of positive skin tests reveals a cellular infiltrate which not only presents a characteristic hypersensitivity reaction but also a neutrophilic abscess in the central part. This research presents the results of a comparison between the yeast cell suspension and the polysaccharide antigens, both obtained from the same strains of Candida albicans. The results obtained by skin tests in one hundred individuals were 61.0% with the polysaccharide antigen and 69.0% with the yeast cell suspension antigen. Concordant results concerning the two antigens were observed in 82.0% of the individuals. The discussion section presents an assumption to explain the differences of positivity obtained with the two antigens. We conclude that the polysaccharide antigen can be utilized in the intradermal test of delayed hypersensitivity to Candida albicans.

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