ISSN:0027-5514    

DOI:10.1080/00275514.1941.12020796

出版商:Taylor&Francis    

年代:1941

数据来源: Taylor

ISSN:0027-5514    

DOI:10.1080/00275514.1941.12020797

出版商:Taylor&Francis    

年代:1941

数据来源: Taylor

摘要:

SUMMARYThe results of the studies of the effects of the hydrogen-ion concentration of the medium upon the growth and sporulation ofSepedonium chrysospermumandHistoplasma capsulatummay be summarized as follows:1.The optimum H-ion concentration may vary with the medium. Essentially, however, the optimum point forHistoplasma capsulatumis approximately 6.5 to 7.5 and forSepedonium chrysospermumis approximately 6.5 to 7.0.2.Sporulation, for the most part, is correlated with maximum growth, and consequently is also influenced by the H-ion concentration of the medium.3.It was found that with the media used in the experiments, when the carbohydrate-amino acid balance was changed, corresponding changes were produced in the acidity of the substratum. Thus, when the ratio of carbohydrates to amino acids was 15 to 1.8 the medium remained relatively constant, whereas when the ratio was 16 to 0.24, the medium became definitely more acid.

ISSN:0027-5514    

DOI:10.1080/00275514.1941.12020798

出版商:Taylor&Francis    

年代:1941

数据来源: Taylor

ISSN:0027-5514    

DOI:10.1080/00275514.1941.12020799

出版商:Taylor&Francis    

年代:1941

数据来源: Taylor

摘要:

SUMMARYBiatorella resinae, a discomycete, was demonstrated to be the ascigerous stage of the pycnidial form,Zythia resinae, by means of single-ascospore and single-conidial cultures.The hosts upon which the apothecial and pycnidial stages ofBiatorella resinaehave been collected during this study and their geographical distribution are reported herein.Inoculation tests with artificial cultures ofBiatorella resinaeonPinus strobusfailed to show that this fungus was parasitic on the conifer.

ISSN:0027-5514    

DOI:10.1080/00275514.1941.12020800

出版商:Taylor&Francis    

年代:1941

数据来源: Taylor

ISSN:0027-5514    

DOI:10.1080/00275514.1941.12020801

出版商:Taylor&Francis    

年代:1941

数据来源: Taylor