R
Roger Knowles
Publications - 4
Citations - 159
Roger Knowles is an academic researcher. The author has contributed to research in topics: Root nodule & Vegetation (pathology). The author has an hindex of 4, co-authored 4 publications receiving 157 citations.
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Journal ArticleDOI
Effects of sulfide and acetylene on nitrous oxide reduction by soil and by Pseudomonas aeruginosa
Tat-Yee Tam,Roger Knowles +1 more
TL;DR: Sodium sulfide inhibited N2O reduction markedly in cell suspensions and also in soil, an effect which may cause sulfidic habitats to act as sources of N2 O.
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Ultrastructure of the Alnus crispa var. mollis Fern. root nodule endophyte.
Maurice Lalonde,Roger Knowles +1 more
TL;DR: Nitrogen-fixing, field-obtained root nodules of the silky green alder were studied by transmission electron microscopy and the fine structure of the Alnus crispa var.
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Effect of hydrogen and oxygen on uptake-hydrogenase activity in nitrogen-fixing and ammonium-grown Azospirillum brasilense
Karl H. Tibelius,Roger Knowles +1 more
TL;DR: Hydrogen uptake by Azospirillum brasilense was studied in N2-fixing and NH4Cl-grown batch cultures and the Km for H2 of uptake hydrogenase (O2-dependent H3H uptake) in whole cells was 9 µM.
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The occurrence of lampropedia in the intestines of some reptiles and nematodes
TL;DR: Early reports of Lampropedia suggested that it occurred in stagnant or muddy waters, rotting vegetation, and liquid manure, but more recently, "window-pane sarcinae" have been observed in the rumen con...