ISSN:0027-5514    

DOI:10.1080/00275514.1929.12016950

出版商:Taylor&Francis    

年代:1929

数据来源: Taylor

ISSN:0027-5514    

DOI:10.1080/00275514.1929.12016951

出版商:Taylor&Francis    

年代:1929

数据来源: Taylor

ISSN:0027-5514    

DOI:10.1080/00275514.1929.12016952

出版商:Taylor&Francis    

年代:1929

数据来源: Taylor

摘要:

Summary1.Media have been developed which produced characteristic pilei, normal as to size and markings, of the wood rotting fungi tested.2.The media used consisted of mixtures of corn-meal, starch, wood flour and malt liquid.3.The cultures grew rapidly on these media and soon developed typical sporophores.4.Media for growing sporophores of the larger fungi apparently must contain wood in some form in order to produce pilei of normal size.5.Wood flour is the best of the materials tested since it is immediately available for use by the growing fungi.6.Liquid media must be added to the growing cultures to produce normal pilei of fungi which have large sporophores.7.Pilei normal as to size and markings would not developinsidecontainers of ordinary size.8.The sporophores must extend beyond the mouth of the container into the outside air to produce characteristic pilei.9.The flask method described is especially adapted to fungi having stipitate sporophores.

ISSN:0027-5514    

DOI:10.1080/00275514.1929.12016953

出版商:Taylor&Francis    

年代:1929

数据来源: Taylor

摘要:

SummaryIsolations of fungi from twenty-two samples of Illinois soil have been made. The soils ranged in type from pure sand of the shore of Lake Michigan to humus of wooded areas. Samples were taken from cultivated and uncultivated areas, at the surface and at depths of 5, 15, 25, 45, 60, 90 and 120 centimeters.Examination of pure cultures of the fungi yielded thirty-nine species and one variety, belonging to eighteen different genera. In addition, fourActinomycesand several yeasts were observed.Fungi were most numerous at the surface of the soil, decreasing markedly with depth. A few forms, however, were found to be present at depths heretofore unexamined; namely,Actinomycesspp.,Penicilliumsp.,Trichoderma Koningi, andZygorrhynchus Vuilleminiiat 60 centimeters;Penicilliumsp.,Verticillium lateritium, andZygorrhynchus Vuilleminiiat 90 centimeters; andChaetomium subterraneum,Penicilliumsp., andTrichoderma Koningiat 120 centimeters.In tilled areas species ofMucorwere dominant; in untilled areas they occurred only sparsely.In surface soil species ofMucor, AspergillusandPenicilliumwere most numerous; in sub-surface soil,Penicilliumspp.,Trichoderma Koningi, andZygorrhynchus Vuilleminiiappeared more frequently than other forms.The following eight species are herein reported for the first time as occurring in the soil:Chaetomium subterraneumSwift&Povah, sp. nov.,Circinella simplexvan Tiegh.,Mucor griseolilacinusPovah,Myrothecium convexumBerk.,Stysanus mediusSacc.,Trichosporium nigricansSacc. f.lignicola,Trichurus terrophilusSwift&Povah, sp. nov., andVerticillium lateritiumBerk.Chaetomium subterraneumandTrichurus terrophilusare described as new species.The conclusions of previous workers with regard to the genera found most commonly in the soil: namely,Aspergillus, Fusarium, Mucor, Penicillium, Rhizopus, Trichoderma, andZygorrhynchus, are confirmed by the present work.

ISSN:0027-5514    

DOI:10.1080/00275514.1929.12016954

出版商:Taylor&Francis    

年代:1929

数据来源: Taylor

ISSN:0027-5514    

DOI:10.1080/00275514.1929.12016955

出版商:Taylor&Francis    

年代:1929

数据来源: Taylor

ISSN:0027-5514    

DOI:10.1080/00275514.1929.12016956

出版商:Taylor&Francis    

年代:1929

数据来源: Taylor