Wyniki wyszukiwania

1

Wiosenne obrączkowanie ptaków na stawach "Spytkowice" koło Zatora w latach 1986-1990

100%

Smykla J., Czerwinski B.

Notatki Ornitologiczne

|

1991

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tom 32

|

nr 3-4

2

Desmids and associated algae of terrestrial small water bodies in the Admiralty Bay area [King George Island, maritime Antarctic]

80%

Mrozinska T., Czerwik-Marcinkowska J., Smykla J.

Oceanological and Hydrobiological Studies

|

2007

|

tom 36

|

nr Suppl.1

3

Additions to the lichen flora of Victoria Land, Antarctica

71%

Smykla J., Krzewicka B., Wilk K., Emslie S. D., Sliwa L.

Polish Polar Research

|

2011

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tom 32

|

nr 2

4

Natural variability of major and trace elements in non-ornithogenic Gelisoils at Edmonson Point, northern Victoria Land, Antarctica

71%

Smykla J., Szarek-Gwiazda E., Drewnik M., Knap W., Emslie S. D.

Polish Polar Research

|

2018

|

tom 39

|

nr 1

5

Studies on diversity of soil microfungi in the Hornsund area, Spitsbergen

61%

Ali S. H., Alias S. A., Siang H. Y., Smykla J., Pang K.-L., Guo S.-Y., Convey P.

Polish Polar Research

|

2013

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tom 34

|

nr 1

6

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Diversity and distribution of lichens in recently deglaciated areas of southeastern Spitsbergen

61%

Maciejowski W., Osyczka P., Smykla J., Ziaja W., Ostafin K., Krzewicka B.

Acta Societatis Botanicorum Poloniae

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2018

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tom 87

|

nr 4

The diversity and distribution of lichen species were investigated in recently deglaciated areas of the borderland between Sørkapp Land and Torell Land (southeastern Spitsbergen, Svalbard). A total of 15 sites representing various habitat types specific to the area were evaluated. Sampling sites were characterized by a very diverse composition of lichens and species richness ranging from as few as two species to as many as 53. None of the species was ubiquitous among the investigated sampling sites; conversely, most were recorded only once or twice indicating a high heterogeneity in species distribution. Eighty species are reported for the first time from southeastern Spitsbergen. The terricolous lichen Verrucaria xyloxena is reported for the first time from the Svalbard archipelago. The influence of the selected abiotic and biotic environmental factors on the occurrences and distributions of lichen species is discussed in this paper.

7

Psychrotrophic lipase producers from Arctic soil and sediment samples

61%

Rasol R., Rashidah A. R., Nur Nazuha R. S., Smykla J., Wan Maznah W. O., Alias S. A.

Polish Journal of Microbiology

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2014

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tom 63

|

nr 1

Culturable microorganisms were successfully isolated from soil and sediment samples collected in 2011 on the northern coast of Hornsund, West Spitsbergen. A total of 63 single colony isolates from three sampling sites obtained were subjected to temperature dependence study to assess whether they are obligate psychrophilic or psychrotrophic strains. From initial temperature screening, only 53 psychrotrophic isolates were selected that are capable of growing between 4–28°C. The rest that were capable of tolerating higher temperatures up to 37°C were not included in this study. These isolates were chosen for lipase enzyme screening confirmation with the standard plate assay of olive oil and fluorescent dye Rhodamine B. Six lipase positive isolates were also subjected for subsequent lipase enzyme plate screening on tributyrin, triolein, olive oil and palm oil agar. Lipase production by these six isolates was further assayed by using colorimetric method with palm oil and olive oil as the substrate. These isolates with promising lipase activity ranging from 20 U/ml up to 160 U/ml on palm oil and olive oil substrate were successfully identified. Molecular identification by using 16S rRNA revealed that five out of six isolates were Gram-negative Proteobacteria and the other one was a Gram-positive Actinobacteria.

8

Biohydrogen production by Antarctic psychrotolerant Klebsiella sp. ABZ11

42%

Mohammed A., Abdul-Wahab M. F., Hashim M., Omar A. H., MD Reba M. N., Said M. F. M., Soeed K., Alias S. A., Smykla J., Abba M., Ibrahim Z.

Polish Journal of Microbiology

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2018

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tom 67

|

nr 3

Lower temperature biohydrogen production has always been attractive, due to the lower energy requirements. However, the slow metabolic rate of psychrotolerant biohydrogen-producing bacteria is a common problem that affects their biohydrogen yield. This study reports on the improved substrate synthesis and biohydrogen productivity by the psychrotolerant Klebsiella sp. strain ABZ11, isolated from Antarctic seawater sample. The isolate was screened for biohydrogen production at 30°C, under facultative anaerobic condition. The isolate is able to ferment glucose, fructose and sucrose with biohydrogen production rate and yield of 0.8 mol/l/h and 3.8 mol/g, respectively at 10 g/l glucose concentration. It also showed 74% carbohydrate uptake and 95% oxygen uptake ability, and a wide growth temperature range with optimum at 37°C. Klebsiella sp. ABZ11 has a short biohydrogen production lag phase, fast substrate uptake and is able to tolerate the presence of oxygen in the culture medium. Thus, the isolate has a potential to be used for lower temperature biohydrogen production process.

Ograniczanie wyników

Wiosenne obrączkowanie ptaków na stawach "Spytkowice" koło Zatora w latach 1986-1990

Desmids and associated algae of terrestrial small water bodies in the Admiralty Bay area [King George Island, maritime Antarctic]

Additions to the lichen flora of Victoria Land, Antarctica

Natural variability of major and trace elements in non-ornithogenic Gelisoils at Edmonson Point, northern Victoria Land, Antarctica

Studies on diversity of soil microfungi in the Hornsund area, Spitsbergen

Diversity and distribution of lichens in recently deglaciated areas of southeastern Spitsbergen

Psychrotrophic lipase producers from Arctic soil and sediment samples

Biohydrogen production by Antarctic psychrotolerant Klebsiella sp. ABZ11