ISSN:0027-5514    

DOI:10.1080/00275514.1960.12024959

出版商:Taylor&Francis    

年代:1960

数据来源: Taylor

ISSN:0027-5514    

DOI:10.1080/00275514.1960.12024960

出版商:Taylor&Francis    

年代:1960

数据来源: Taylor

摘要:

SUMMARYRespiration studies ofN. rubraconfirmed earlier qualitative studies on carbohydrate utilization. The inherent high endogenous respiration of the cells was reduced to less than 10% by shaking overnight in phosphate buffer (pH 7). The pattern of utilization varied with the age of the cultures used, e.g., 4-day old being metabolically more active than 7-day old on a number of the sugars.When one of the less readily utilized sugars was replaced in part by glucose, the oxygen uptake was considerably higher than with either sugar alone, showing that glucose stimulated the utilization of the other sugar. This effect was observed in mixtures containing 15–50% glucose.Although the oxygen uptake/mg dry weight varied considerably with different batches of cells of the same age, the same general trends were observed within an age group. This variation may be due to the random mixtures of cells of different ages in the seemingly uniform inoculum used initially. This was overcome by using as inocula frozen stock suspensions of 24-hour shake cultures ofN. rubragrown in a 0.07 M glucose medium.Such inocula were used in growth studies, in which the quantitative growth curves for several carbohydrates paralleled earlier growth studies. The patterns in mixtures of sugars confirmed the results from respiration studies.

ISSN:0027-5514    

DOI:10.1080/00275514.1960.12024961

出版商:Taylor&Francis    

年代:1960

数据来源: Taylor

ISSN:0027-5514    

DOI:10.1080/00275514.1960.12024962

出版商:Taylor&Francis    

年代:1960

数据来源: Taylor

ISSN:0027-5514    

DOI:10.1080/00275514.1960.12024963

出版商:Taylor&Francis    

年代:1960

数据来源: Taylor

摘要:

SUMMARYThe manner of basidial development, the basidial morphology, and the conglutinate or gelatinized condition of the hyphae were found to be a combination of characters which are taxonomically significant in determining the limits ofXenasma.As herein delimited, this genus is considered to be a natural taxon now composed of twenty species. The generic description has been expanded somewhat to include both non-amyloid- and amyloid-spored species, and to include gloeocystidiate species. Three species previously placed inXenasmahave been excluded.

ISSN:0027-5514    

DOI:10.1080/00275514.1960.12024964

出版商:Taylor&Francis    

年代:1960

数据来源: Taylor

ISSN:0027-5514    

DOI:10.1080/00275514.1960.12024965

出版商:Taylor&Francis    

年代:1960

数据来源: Taylor

ISSN:0027-5514    

DOI:10.1080/00275514.1960.12024966

出版商:Taylor&Francis    

年代:1960

数据来源: Taylor

摘要:

SUMMARYThe genusItersoniliais emended on the basis of variation in monocaryophase and dicaryophase cultures. Probable synonyms include two other genera of the Sporobolomycetaceae,TilletiopsisandSporidiobolus, and the proposed but invalid genusEntylomella(representing conidial states ofEntylomaand other smut fungi). The isolates ofItersoniliaresponsible for leafspot and canker of parsnip,Pastinaca sativaL., in the United States are considered to representI. perplexansDerx.

ISSN:0027-5514    

DOI:10.1080/00275514.1960.12024967

出版商:Taylor&Francis    

年代:1960

数据来源: Taylor

摘要:

SUMMARYPolyporus schweinitziisuffers from a partial deficiency for at least two unidentified growth-promoting substances which are widely distributed in natural products. Both are soluble in organic solvents, adsorbed in charcoal and thermostable. One is“neutral”and less polar; the other acidic and more polar. Concentrates producing a measurable increase in growth at less than 1μg per ml were prepared. The substances may be involved in nitrogen metabolism.

ISSN:0027-5514    

DOI:10.1080/00275514.1960.12024968

出版商:Taylor&Francis    

年代:1960

数据来源: Taylor