نتایج جستجو برای: coccus

تعداد نتایج: 560  

ژورنال: :مجله علوم کشاورزی ایران 2004
آزاده داودی علی اصغر طالبی غلامرضا رجبی یعقوب فتحی پور ولی الله رضایی

زنبورهای پارازیتویید و هیپرپارازیتویید تعدادی از عمومی ترین شپشک های نر م تن (hom.:coccidae) شامل coccus hesperidum (l.) ،eulecanium coryli (l.) , e. tiliae l.، sphaerolecaniumprunastri fonscolombe saissetia oleae (oliver) ودرتهران و مناطق محد ودی از استان گیلان در سال 1381 جمع آوری و شناسایی شدند . پارازیتوییدهای اولیه شامل blastothrix sericea (dalman) ، mayr encyrtus lecaniorum ، metaphycus...

Journal: :IOP conference series 2021

Abstract The aim of this study was to isolate and characterize the Phosphate solubilizing bacteria from rhizosphere Zea mays L., Jeneponto Regency. This research conducted in several stages; i.e, sampling, medium preparation, sample dilution, isolation, characterization form gram staining, biochemical tests, quantitative tests phosphate solubility. Soil samples were diluted 0.9% NaCl soil conta...

Journal: :Applied and environmental microbiology 2001
K Grünberg C Wawer B M Tebo D Schüler

In magnetotactic bacteria, a number of specific proteins are associated with the magnetosome membrane (MM) and may have a crucial role in magnetite biomineralization. We have cloned and sequenced the genes of several of these polypeptides in the magnetotactic bacterium Magnetospirillum gryphiswaldense that could be assigned to two different genomic regions. Except for mamA, none of these genes ...

2016
Ana M. N. Botelho Maiana O. C. Costa Cristiana O. Beltrame Fabienne A. Ferreira Marina F. Côrtes Paula T. Bandeira Nicholas C. B. Lima Rangel C. Souza Luiz G. P. Almeida Ana T. R. Vasconcelos Marisa F. Nicolás Agnes M. S. Figueiredo

Staphylococcus aureus is a versatile Gram-positive coccus frequently found colonizing the skin and nasal membranes of humans. The acquisition of the staphylococcal cassette chromosome mec was a major milestone in the evolutionary path of methicillin-resistant S. aureus. This genetic element carries the mecA gene, the main determinant of methicillin resistance. MRSA is involved in a plethora of ...

Journal: :International journal of systematic bacteriology 1996
A Godfroy J R Meunier J Guezennec F Lesongeur G Raguénès A Rimbault G Barbier

An extremely thermophilic archaeon, strain ST557T (T = type strain), was isolated from a deep-sea hydrothermal vent in the North Fiji Basin. This strain is a strictly anaerbic coccus whose cells are about 0.8 to 2 microns in diameter. The optimum temperature, pH and sea salt concentration for growth are 85 degrees C, 8.5, and 20 to 40 g/liter, respectively. Strain ST557T grows preferentially in...

2009
Shalene JHA John H. VANDERMEER Ivette PERFECTO

Ant and homopteran mutualisms are complex because they depend on the behavior, abundance, and predation levels of both insect species. Because homopteran populations are critically impacted by these seasonally varying factors, it is important to measure the population dynamics of ant-tended homopterans outside of the laboratory. In this study, we develop a new method for documenting the populat...

Journal: :International journal of systematic bacteriology 1999
A Linos A Steinbüchel C Spröer R M Kroppenstedt

A rubber-degrading bacterium (strain Kd2T) was isolated from fouling tyre water inside a deteriorated automobile tyre. The strain was aerobic, Grampositive, produced elementary branching hyphae which fragmented into rod/coccus-like elements and showed chemotaxonomic markers which were consistent with the classification of Gordonia, i.e. meso-diaminopimelic acid, N-glycolyl muramic acid, arabino...

Journal: :Journal of bacteriology 1954
T C STADTMAN

Two anaerobic microorgaisms were isolated by the enrichment culture technique from a sodium formate-mineral salts medium inoculated with black mud from the San Francisco Bay. One of these, a motile coccus designated Methanococcus vannielii, carries out a methane fermentation of formate (Stadtman and Barker, 1951). The second organism that was almost equally numerous in the enrichment cultures i...

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