Výsledky vyhledávání - "L. Arlene Porteous"

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Autor: E. Henry Lee, Sharon Maggard, Clarace G. Coleman, Mark Johnson, George D. Di Giovanni, Katherine K. Donegan, L. Arlene Porteous, Lidia S. Watrud, Tamotsu Shiroyama

Publikováno v: Plant and Soil. 249:359-371

Bracken is a broadly distributed weedy fern common in disturbed habitats. Frond and rhizosphere soil samples were obtained from bracken growing in three clearcut locations in the Willamette National Forest in western Oregon. The highest frond biomass

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::16dde636b2df58a0f304fb243146b55a
https://doi.org/10.1023/a:1022885100254

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Multiple enzyme restriction fragment length polymorphism analysis for high resolution distinction of Pseudomonas (sensu stricto) 16S rRNA genes

Autor: L. Arlene Porteous, R. J. Seidler, Franco Widmer

Publikováno v: Journal of Microbiological Methods. 51:337-348

Members of the genus Pseudomonas (sensu stricto) are important phytopathogens and agents of human infections, while other strains and species have beneficial bioremediation and biocontrol activities. Traditionally, these important species have been d

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e9d16c1a6be853683290597515a50d56
https://doi.org/10.1016/s0167-7012(02)00108-2

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Soil and litter organisms in Pacific northwest forests under different management practices

Autor: Tamotsu Shiroyama, Katherine K. Donegan, L. Arlene Porteous, Sharon Maggard, R. J. Seidler, George Digiovanni, Lidia S. Watrud

Publikováno v: Applied Soil Ecology. 18:159-175

Soil and litter organisms are important indicators of stress and disturbance to forest ecosystems. In this study, soil and litter organisms were monitored for their response to different forest management practices. Litter and soil cores (0–10, 10�

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6ca225856fddbc474a6a6f48069aee18
https://doi.org/10.1016/s0929-1393(01)00155-x

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Formation of transconjugants on plating media following in situ conjugation experiments

Autor: Michael V. Walter, L. Arlene Porteous, John L. Armstrong, Valerie P. Fieland, Ramon J. Seidler

Publikováno v: Canadian Journal of Microbiology. 37:703-707

Conjugation on agar plates following mating trials can cause transconjugant numbers to be overestimated. Numbers of transconjugants detected after incubating donors and recipients together were compared with those observed when donors and recipients

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::993e78e193ce623038b078b1857e209e
https://doi.org/10.1139/m91-119

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Recovery of bulk DNA from soil by a rapid, small-scale extraction method

Autor: L. Arlene Porteous, John L. Armstrong

Publikováno v: Current Microbiology. 22:345-348

We describe an extraction method that yields up to 25 µg of DNA from 1 gram of soil. Samples are processed within 48 h. The purified DNA is 20–25 kb in size and can be digested by restriction enzymes. The soil is vortex-mixed with 6 mL mixing buff

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::46675650229c68fec57265161a867094
https://doi.org/10.1007/bf02092152

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A field study with genetically engineered alfalfa inoculated with recombinant Sinorhizobium meliloti: effects on the soil ecosystem

Autor: L. Arlene Porteous, Franco Widmer, George Digiovanni, R. J. Seidler, Katherine K. Donegan, Jack D. Doyle, Lidia S. Watrud

Publikováno v: Journal of Applied Ecology. 36:920

Summary 1. A field study using transgenic plants with associated recombinant micro-organisms was conducted to assess the potential effects of genetically engineered organisms on soil ecosystems. Three genotypes of alfalfa plants (parental, transgenic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dd06f2031c47c32760bcf70f154cbba4
https://doi.org/10.1046/j.1365-2664.1999.00448.x

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Evaluation of a method to measure conjugal transfer of recombinant DNA in soil slurries

Autor: L. Arlene Porteous, Michael V. Walter, R. J. Seidler

Publikováno v: Current Microbiology. 19:365-370

Release of recombinant microbes into the environment necessitates an evaluation of their ability to transfer genetic material. The present report evaluates a method to detect conjugal DNA plasmid transfer in soil slurries under various environmental

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5602b7ab0e1049aa05b28288d013941e
https://doi.org/10.1007/bf01570883

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