Canadian Journal of Microbiology

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Phenotypic, genotypic, and symbiotic diversities in strains nodulating clover in different soils in Spain
Canadian Journal of Microbiology - Tập 55 Số 10 - Trang 1207-1216 - 2009
Martha-Helena Ramírez-Bahena, Encarna Velázquez, Félix Fernández-Santos, Álvaro Péix, Eustoquio Martínez‐Molina, Pedro F. Mateos
Trifolium species are the most common legumes present in wild Spanish soils; however, there are no studies to date on the diversity of rhizobia nodulating clover in Spain. Twenty strains from different Spanish soils with acidic, neutral, and basic pH were selected to study their genotypic, phenotypic, and symbiotic features. The results showed that the isolates were genotypically diverse,...... hiện toàn bộ
An improved selective and diagnostic medium for the isolation and enumeration of Bacillus cereus in foods
Canadian Journal of Microbiology - Tập 26 Số 7 - Trang 753-759 - 1980
R. Holbrook, J.M. Anderson
The use and performance of an improved diagnostic and selective medium, PEMBA (polymyxin pyruvate egg yolk mannitol bromothymol blue agar), for the detection of Bacillus cereus in foods is described. The distinct colonial appearance of B. cereus on PEMBA permitted the recognition of both strains: those that do precipitate egg yolk and those that do not react with egg yolk. A staining proc...... hiện toàn bộ
Copper stress and filamentous fungusHumicola lutea103 — ultrastructural changes and activities of key metabolic enzymes
Canadian Journal of Microbiology - Tập 58 Số 12 - Trang 1335-1343 - 2012
Ekaterina Ts. Krumova, Stoyanka Stoitsova, Tsvetelina Paunova‐Krasteva, Svetlana B. Pashova, Maria Angelova
Humicola lutea 103 is a copper-tolerant fungal strain able to grow in the presence of 300 μg·mL–1Cu2+under submerged cultivation. To prevent the consequences of copper overload, microorganisms have evolved molecular mechanisms that regulate its uptake, intracellular traffic, storage, and efflux. In spite of this avoidance strategy, high heavy-metal...... hiện toàn bộ
Binding of heterocyclic amines by lactic acid bacteria from miso, a fermented Japanese food
Canadian Journal of Microbiology - Tập 44 Số 2 - Trang 109-115 - 1998
R. Rajaram, Yoshiyuki Ohta
Miso, a widely used Japanese fermented food was analysed for its lactic acid bacterial count on bromocresol purple agar. The binding of eight different foodborne carcinogenic heterocyclic amines to 25 bacterial isolates from miso were investigated. The heterocyclic amines used were 3-amino-1,4-dimethyl[5H]pyrido(4,3-b)indole (Trp-P-1), 3-amino-1-methyl[5... hiện toàn bộ
Pythium and Mortierella in soils of Ontario forest nurseries
Canadian Journal of Microbiology - Tập 14 Số 3 - Trang 265-269 - 1968
O. Vaartaja
Populations of Pythium and Mortierella species were estimated by plating surface soils in agar media containing pentachloronitrobenzene, pimaricin, and bacterial antibiotics. Pythium spp. were found in 16 of 17 Ontario soils, mainly seedbed soils in forest nurseries. There was significant variation in the mean population density of Pythium propagules between two seedbeds sampled in each n...... hiện toàn bộ
POPULATIONS OF FUSARIUM OXYSPORUM F. MELONIS AND THEIR RELATION TO THE WILT POTENTIAL OF TWO SOILS
Canadian Journal of Microbiology - Tập 9 Số 2 - Trang 237-249 - 1963
R. N. Wensley, C. D. McKeen
The relation of soil populations of the muskmelon wilt fungus, Fusarium oxysporum f. melonis, to the wilt potentials of a yellow Fox sandy loam soil (Fsl) and a dark Colwood loam (Cl) was investigated. In either soil a direct relationship existed between the size of the population of the fungus and wilt incidence. Notwithstanding this relationship, with the same population the greater inc...... hiện toàn bộ
Sự hóa cảm của chi vi khuẩn phát quang Pseudomonas đối với dịch tiết từ hạt đậu nành trong môi trường thí nghiệm và đất trồng Dịch bởi AI
Canadian Journal of Microbiology - Tập 31 Số 6 - Trang 570-574 - 1985
F. M. Scher, Joseph W. Kloepper, C. A. Singleton
Năm chủng Pseudomonas phát quang cư trú trên hạt (RW1 đến RW5) thể hiện khả năng hóa cảm đối với dịch tiết từ hạt đậu nành trong mao quản 1 μL được giữ trong 30 phút trong huyền phù vi khuẩn với mật độ 8.0 log CFU/mL trong phạm vi nhiệt độ từ 9 đến 41 °C. Dùng kỹ thuật thẩm tách (với ngưỡng phân tử bị giữ lại là 6000) dịch tiết làm mất sức hấp dẫn đối với RW1; trong khi đó, việc đun nóng dịch tiết...... hiện toàn bộ
#hóa cảm #Pseudomonas phát quang #dịch tiết hạt đậu nành #cư trú hạt #đất trồng
A NEW α-GLUCANASE: MYCODEXTRANASE
Canadian Journal of Microbiology - Tập 10 Số 2 - Trang 103-114 - 1964
Elwyn T. Reese, Mary Mandels
Mycodextranase is an α-glucanase which splits only the α-1,4 linkages in a substrate having alternating α-1,3 and α-1,4 links. It ïs a fungal enzyme of rather infrequent occurrence, adaptive in nature, and in its properties strongly resembling other fungal glucanases. The products of its action on mycodextran are a tetramer and nigerose. The hypothesis is advanced that this glucanase, and ...... hiện toàn bộ
Cometabolic oxidation of phenanthrene to phenanthrenetrans-9,10-dihydrodiol byMycobacteriumstrain S1 growing on anthracene in the presence of phenanthrene
Canadian Journal of Microbiology - Tập 45 Số 5 - Trang 369-376 - 1999
Saowanit Tongpim, Michael A. Pickard
Mycobacterium strain S1, originally described as Rhodococcus strain S1 by chemotaxonomic criteria, was isolated by growth on anthracene, and is unable to use any of nine other polycyclic aromatic compounds as carbon source. Metabolism of phenanthrene during growth on anthracene as sole carbon source results in the accumulation of traces of a dihydrodiol metabolite in the growth medium, whi...... hiện toàn bộ
A procaryotic intracellular symbiont of the Great Salt Lake brine shrimp Artemia salina (L.)
Canadian Journal of Microbiology - Tập 23 Số 9 - Trang 1232-1236 - 1977
F. J. Post, Nabil N. Youssef
Individuals of Artemia salina, the brine shrimp, were captured from the Great Salt Lake, a highly saline (330–340 g ℓ−1 solids content) terminal lake in Utah. Electron microscopy revealed the presence of intracellular procaryotic symbionts in the epithelial lining of the midgut. Fine structure and possible role of the symbiont are discussed.
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