ISSN:0027-5514    

DOI:10.1080/00275514.1944.12017554

出版商:Taylor&Francis    

年代:1944

数据来源: Taylor

ISSN:0027-5514    

DOI:10.1080/00275514.1944.12017555

出版商:Taylor&Francis    

年代:1944

数据来源: Taylor

ISSN:0027-5514    

DOI:10.1080/00275514.1944.12017556

出版商:Taylor&Francis    

年代:1944

数据来源: Taylor

摘要:

SUMMARYA new species ofMetarrhiziumwhich is very active in decomposing cellulose is described asM. glutinomm.Comparative observations on two other isolates of the same species are reported.

ISSN:0027-5514    

DOI:10.1080/00275514.1944.12017557

出版商:Taylor&Francis    

年代:1944

数据来源: Taylor

摘要:

SUMMARYNephrochytriam amazonensisoccurs as a saprophyte in decaying vegetable debris in moist soil samples collected from the Rio Candeias in Amazonas, Brazil. It is strikingly similar in structure to species ofDiplophlyctis, but forms an operculum in the exit tube after the tip has deliquesced and become filled with a plug of hyaline material. Because of the presence of an operculum it is included in the genusNephrochytrium.

ISSN:0027-5514    

DOI:10.1080/00275514.1944.12017558

出版商:Taylor&Francis    

年代:1944

数据来源: Taylor

ISSN:0027-5514    

DOI:10.1080/00275514.1944.12017559

出版商:Taylor&Francis    

年代:1944

数据来源: Taylor

摘要:

SUMMARYAllomyces arbusculus, North Carolina strain, was brought into culture and was experimented upon in an effort to determine what effect drying and nutrition might have on the sexual-asexual ratio of the products of its resistant sporangia.Previously unreported methods of culture and examination are described.Experimental results demonstrate that when resistant sporangia are air-dried for 24 days the products of these sporangia are exclusively sexual and this condition will remain unchanged even when the resistant sporangia are brought to dehiscence in rich nutrient. The products of resistant sporangia dried for 18 days are predominantly sexual, but not exclusively so when cultured in rich nutrient. The products of resistant sporangia dried 12 days will be predominantly asexual in rich nutrient and the products of resistant sporangia dried only 6 days will not only be predominantly asexual in rich nutrient, but will produce some asexual plants in weak nutrient.It is concluded that drying and nutrition affect the sexual-asexual ratio of the products of resistant sporangia.It is suggested that the common practice of drying resistant sporangia for several weeks before inoculating into water or weak nutrient cultures may have been largely responsible for the fact that the products of resistant sporangia have, heretofore, been reported as being preponderantly sexual.

ISSN:0027-5514    

DOI:10.1080/00275514.1944.12017560

出版商:Taylor&Francis    

年代:1944

数据来源: Taylor

ISSN:0027-5514    

DOI:10.1080/00275514.1944.12017561

出版商:Taylor&Francis    

年代:1944

数据来源: Taylor

ISSN:0027-5514    

DOI:10.1080/00275514.1944.12017562

出版商:Taylor&Francis    

年代:1944

数据来源: Taylor

ISSN:0027-5514    

DOI:10.1080/00275514.1944.12017563

出版商:Taylor&Francis    

年代:1944

数据来源: Taylor