摘要:

Species ofAlatosporaandMargaritisporahave been studied in pure culture. The conidial morphology of 33Alatosporaisolates was examined. The conceptof Alatospora acuminatais broadened to embrace strains with a high percentage of unbranched and triradiate conidia as well as those with large conidia with an arcuate axis and narrow branch insertion.Alatospora constrictais neotypified, and a new generic name is introduced to accommodate a species with similar conidia but different conidiogenesis.Margaritispora aquaticais neotypified andM. monticolais neotypified and recombined in a new genus.

ISSN:0024-4074    

DOI:10.1111/j.1095-8339.1985.tb01130.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY

摘要:

An aero‐aquatic hyphomycete with setose synnemata and scolecospores with a central isthmus is describe

ISSN:0024-4074    

DOI:10.1111/j.1095-8339.1985.tb01131.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY

摘要:

Pseudoyima prolificais described from litter ofScirpus microcarpusPresl. The species produces dark hyphal colonies with few or no conidia, and pallid conidial colonies in which hyphae are sparse or absent. Conidial colonies, macroscopically yeast‐like, consist of proliferating scolecoconidia, stauroconidia, and arthroconidi

ISSN:0024-4074    

DOI:10.1111/j.1095-8339.1985.tb01132.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY

摘要:

Morning dew appears to be an important factor in the habitat ofTripospermumspecies. It affects both conidial development and liberation.

ISSN:0024-4074    

DOI:10.1111/j.1095-8339.1985.tb01133.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY

摘要:

A number of water‐borne fungi with branched conidia have been shown to be basidiomycetes. These fungi resemble aquatic hyphomyectes in their habitat, conidial morphology and ontogeny. Their conidia are typically tetraradiate or elaborately branched.Ingoldiella hamataandTaeniospora gracilis,which produce clamped, tetraradiate conidia, are anamorphs connected to the teleomorphsSistotrema hamalumandLeptosporomyces galzinii,respectively. Both teleomorphs are members of the Corticiaceae.Dendrosporomyces proliferandD. splendens,which produce non‐clamped conidia resembling the aquatic hyphomyceteDendrospora,have binucleate conidia and typical dolipore septa are present. Other water‐borne fungi with basidiomycete affinities includeIngoldiella fibulataandTricladiomyces malays

ISSN:0024-4074    

DOI:10.1111/j.1095-8339.1985.tb01134.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY

摘要:

Fluctuation in spore numbers of aquatic hyphomycetes in the Nihotupu Stream, Waitakere Ranges, was examined using a filtration technique. Low spore numbers were recorded in spring and summer, with higher numbers in autumn and winter. No significant differences were found in the patterns for different fungal species. The fluctuation in spore numbers in the stream corresponded closely to those for northern hemisphere streams with low pH and mixed conifer‐broadleaf vegetatio

ISSN:0024-4074    

DOI:10.1111/j.1095-8339.1985.tb01135.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY

摘要:

Reports of cell‐wall‐degrading enzymes of aquatic hyphomycetes are reviewed, including pectinases, cellulases, hemicellulases, laminarinases and chitinases and the ability of these fungi to degrade lignin and straw. New evidence of enzymic activity is presented for 14 spec

ISSN:0024-4074    

DOI:10.1111/j.1095-8339.1985.tb01136.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY

摘要:

Dead leaves falling into streams are an important food source for many invertebrates. They are generally made more palatable and more nutritious if they are first colonized by aquatic hyphomycetes and other micro‐organisms. At least two mechanisms appear to be responsible for this conditioning effect: microbial production (addition of easily digested microbial compounds to the nutritionally poor leaf substrate), and microbial catalysis (conversion of indigestible leaf substances into digestible subunits by microbial enzymes). Different invertebrate species vary in their ability to take advantage of microbial conditioning. This appears to be influenced by their mobility, the range of their food resources and their ability to overcome defense mechanisms of leaf‐colonizing microorgani

ISSN:0024-4074    

DOI:10.1111/j.1095-8339.1985.tb01137.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY

摘要:

New records of the fungus have been obtained from bodies of water in England, Scotland, Switzerland, Italy, Canada and the U.S.S.R. Additional information regarding certain stages in the life history is described and illustrated. Noteworthy are: the presence, within the motile zoospore, of two minute contractile‐type vacuoles; and the development, by the zoospore, of short rod‐like processes. There is slight evidence that these processes become attached to host flagella and so initiate the first stage in colonization. The hitherto unknown presence of a bunch of finger‐like rhizoids within infected host cells is demonstrated. Sporangia may be spherical as well as elongate. Resting spore formation was identical to that already described. As well as spiny‐walled spores, those with a smooth wall and with very strongly developed spines giving the surface a bullate appearance were found. On germination, the spore buds out a sporangium. The host range is extended to includeEudorina unicoccaandPandorin

ISSN:0024-4074    

DOI:10.1111/j.1095-8339.1985.tb01138.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY

摘要:

A previously undescribed haustorial mycoparasite of Mucorales was studied at the light‐microscopic level, based on dural cultures with three hosts,Mucor hiemalis, Mortierella remanniana,andCunninghamella elegans.Sporangial and zygosporic development of the parasite are described and illustrated, and salient features of the fungus are compared with those ofPiptocephalisandSyncephalis.The new fungus appears more nearly related toPiptocephalisin possessing similar hyphal and haustorial characteristics, dichotomously branched sporangiophores, and a nearly identical form of zygospore. Like a few species ofPiptocephalis,the fungus lacks a head‐cell, and it forms branched merosporangia one or two terminally on ultimate branches of the sporangiophore. However, merosporangial development in the fungus is unique for the Piptocephalidaceae in that it proceeds by a process of sequential acropetal budding leading to the formation of a more or less highly branched, moniliform sporangiole. Sporangiospores mature simultaneously, are multinucleate, and are liberated by merosporangial disarticulation. Because of its distinctive merosporangium, the Japanese isolate is placed in a new genus and species,huzuhaea monilifor

ISSN:0024-4074    

DOI:10.1111/j.1095-8339.1985.tb01139.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY