Wyniki wyszukiwania

1

Rhythm of sporulation within the section Penicillium clavigerum. I. Induction of endogenous rhythms in Penicillium clavigerum Demelius 310.48.I

100%

Piskorz-Binczycka B.

Acta Biologica Cracoviensia. Series Botanica

|

1991

|

tom 33

2

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Side effects of fungicides and insecticides on entomopathogenic fungi in vitro

86%

Fiedler Z., Sosnowska D.

Journal of Plant Protection Research

|

2017

|

tom 57

|

nr 4

Products based on different strains of entomopathogenic fungi are now being used in Integrated Pest Management (IPM) programs. Compatibility studies of chemical and biological control agents are necessary to be able to give proper recommendations for their integrated use. The effect of three insecticides based on imidacloprid, spinosad and abamectin, and three fungicides based on chlorothalonil, azoxystrobin and thiophanate-methyl on the activity of the following entomopathogenic fungi: Metarhizium anisopliae (Metschn.) sensu lato, Beauveria bassiana (Bals.-Criv.) Vuill., Acremonium sp. was tested under laboratory conditions. Tests of the influence of the pesticides on growth and production of conidia were performed. From this study, we concluded that all tested insecticides can be applied together with fungus B. bassiana products in IPM programs. They even stimulate sporulation of this fungus at the recommended dose, 0.5 of the recommended dose and 1.5 times the recommended dose. In the case of fungicides we observed inhibition of growth and sporulation of B. bassiana and reduction of growth and sporulation of other species of fungi.

3

Metody wywolywania sporulacji grzybow patogenicznych w banku patogenow roslin

86%

Walkowiak-Cagara I., Rataj-Guranowska M.

Progress in Plant Protection

|

1997

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tom 37

|

nr 2

279-281

4

Regulation of sporulation in the yeast Saccharomyces cerevisiae

86%

Piekarska I., Rytka J., Rempola B.

Acta Biochimica Polonica

|

2010

|

tom 57

|

nr 3

Sporulation of the budding yeast Saccharomyces cerevisiae - equivalent to gametogenesis in higher organisms, is a complex differentiation program induced by starvation of cells for nitrogen and carbon. Such environmental conditions activate coordinated, sequential changes in gene expression leading to production of haploid, stress-resistant spores. Sporulation comprises two rounds of meiosis coupled with spore morphogenesis and is tightly controlled to ensure viable progeny. This review concerns the regulation of differentiation process by nutritional and transcriptional signals.

5

Further studies on the role of ethylene in the growth and development of Fusarium culmorum (W.G.Sm.) Sacc.

86%

Michniewicz M., Rozej B.

Bulletin of the Polish Academy of Sciences. Biological Sciences

|

1987

|

tom 35

|

nr 10-12

6

Interactions of abscisic acid and ethylene in the growth and development of Fusarium culmorum (W.G.Sm.) Sacc.

86%

Michniewicz M., Rozej B.

Bulletin of the Polish Academy of Sciences. Biological Sciences

|

1989

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tom 37

|

nr 7-9

7

Effect of cultivation conditions on Monilia coryli growth and sporulation

86%

Zalewska E.

Phytopathologia Polonica

|

2001

|

tom 22

8

Inhibition of growth and sporulation of Penicillium expansum by extracts of selected Basidiomycetes

86%

Florianowicz T.

Acta Societatis Botanicorum Poloniae

|

2000

|

tom 69

|

nr 4

9

Genetic and physiological regulation of bacterial endospore development

86%

Wolska K. I., Grudniak A. M., Kraczkiewicz-Dowjat A.

Polish Journal of Microbiology

|

2007

|

tom 56

|

nr 1

Bacterial endospores are complex structures residing inside endospore-forming, mainly gram-positive bacteria. The process of sporulation is considered a simple example of cell differentiation. Endospores enable the organism to resist environmental stresses. Sporulation can be divided into several stages, from axial DNA filamentation to mother cell lysis. The structure and formation of an endospore is an attractive model for the assembly of complex macromolecular structures during development. The expression of genes involved in spomlation is compartmentalized and different sets of genes are expressed in the prespore and mother cell, this being associated with the subsequent activation of four sporulation-specific o factors. Their synthesis and activity are tightly regulated and the regulatory mechanisms have overlapping roles.

10

Inhibitory effect of caffeine on diploidization and sporulation in fisson yeast Schizosaccharomyces pombe

86%

Bien M., Lachowicz T. M., Orlowska-Matuszewska G.

Polish Journal of Food and Nutrition Sciences

|

1993

|

tom 02

|

nr 3

11

Control of growth and development of Fusarium culmorum (W.G.Sm.) by abscisic acid under unfavorable pH values of the media and temperature

72%

Michniewicz M., Michalski L., Rozej B.

Bulletin of the Polish Academy of Sciences. Biological Sciences

|

1987

|

tom 35

|

nr 4-6

12

Effects of culture conditions on the growth and morphology of 20 strains of Drechslera avenae (Eidam) Scharif

72%

Cegielko M.

Acta Agrobotanica

|

2010

|

tom 63

|

nr 1

Growth and sporulation of 20 single-spore isolates of Drechslera avenae grown on different agar media were investigated at 24oC and 11oC. Four different agar media were used – water agar (WA, 20 g agar x l-1), maltose-peptone agar (MPA, 20 g maltose from Difco, 2.5 g peptone, 20 g agar x l-1), potatodextrose agar (PDA, from Difco, 39 g x l-1), and rye agar (RA). The isolates were evaluated in respect of growth, colony colour, and formation of morphological structures. The study showed differences between isolates in respect of colony growth, depending on culture conditions. Comparing macroscopic features of all D. avenae isolates tested, three groups of strains formed equal colonies and four individual strains were separated. Generally, most strains, except strains number: 2, 4, 7, 9, 10, 13 and 17, grew faster on all agar media at 24oC than at 11oC. In case of D. avenae isolates, hyphal growth was the fastest on MPA medium and the slowest on WA. All strains investigated produced typical conidiophores and conidia both at 24oC and 11oC, but at 24oC earlier sporulation was observed. MPA and RA were the best media for the sporulation of D. avenae strains. Sporulation of this species was the latest on WA.

13

Antifungal activity of sodium chloride on Saprolegnia diclina and Aphanomyces sp.

72%

Ali E. H.

Acta Mycologica

|

2009

|

tom 44

|

nr 1

125-138

Sixteen identified and three unidentified species belonging to six genera of zoosporic fungi were isolated from forty water samples which were collected from different fish and fish hatcheries farms at Abbassa city, Sharkiya governorate, Egypt, using sesame seeds baiting technique at 20±2°C. Saprolegnia and Achlya contributed the broadest spectra of species diversity amongst the other genera of zoosporic fungi. Saprolegnia diclina and Aphanomyces sp. were the most prevalent species of zoosporic fungi. The abundance of zoosporic fungal species in these aquacultures was correlated with some physicochemical characteristics of the water samples. The two dominant species of zoosporic fungi were tested for their tolerance of NaCl solution and its impact on some morphological and metabolic activities of these fungi. Saprolegnia diclina tolerated concentrations of NaCl solution till 12000 μg/ml whereas the maximum resistance of Aphanomyces sp. was 8000 μg/ml. The examined morphological aspects of the two studied fungal species, which included the colony diameters, the vegetative hyphae, zoosporogenesis, zoospores discharge, sexual reproductive structures and gemmae formation, were generally affected depending upon the tested fungal species and the applied dose of NaCl solution. The low treatments of NaCl solution were significantly stimulative compared with the control for protease production by S. diclina but higher doses were significantly suppressive. A significant decline in protease activity at all applications was found when Aphanomyces sp. was treated with NaCl solution. The total free amino acids and total protein content of S. diclina and Aphanomyces sp. mycelia were almost significantly increased relative to untreated controls at the low dose of NaCl solution and they were significantly dropped at the higher concentrations by the two zoosporic fungi.

14

Biotransformation of [-]-menthol by spores of Mucor ramannianus and study of the pathways involved

72%

Esmaeili A., Saad N., Safaiyan S., Rustaiyan A.

Herba Polonica

|

2009

|

tom 55

|

nr 2

51-58

The biotransformation of (–)–menthol by Mucor ramannianus was studied. It was carried out with sporulated surface cultures of Mucor ramannianus. The main bioconversion products obtained from (–)–menthol were trans-p-menthan-8-ol, trans-menth-2-en-1-ol, sabinane, pmenthane- 3,8-diol, isomenthol, and 1,8-cineole, also resulting in higher yields. Biotransformation with sporulated surface cultures was also monitored in Petri dishes and the same solid medium, Sabouraud Dextrose Agar (SD A), was used. In the solid agar medium inoculated with spores of Mucor ramannianus, first germination of the spores and then mycelial growth took place. After 1 week, the surfaces of Petri dishes were covered with spores and biotransformation reaction had started. However, there is no report on the biotransformation of (-)-menthol using Mucor ramannianus. Six isolates (93.6%) found Mucor ramannianus as a biocatalyst and biotransformation of (–)–menthol was investigated. The pathways involved in the biotransformation of (–)–menthol by two main products are also discussed.

15

Oocysts of six new Coccidiomorpha species from pinnipeds of King George Island (South Shetlands, Antarctic)

72%

Drozdz J.

Acta Protozoologica

|

1987

|

tom 26

|

nr 3

16

Growth and sporulation of Penicillium roqueforti strains in the presence of yeasts selected as co-starters for cheese production

72%

Juszczyk P., Wojtatowicz M., Zarowska B., Chrzanowska J., Malicki A.

Electronic Journal of Polish Agricultural Universities. Series: Biotechnology

|

2005

|

tom 08

|

nr 1

17

The effect of cultivation conditions on growth, sporulation and formation of morphological structures of Topospora myrtilli (Feltg.) Boerema

72%

Szmagara, Zalewska E.

Acta Agrobotanica

|

2008

|

tom 61

|

nr 2

The growth of Topospora myrtilli isolates, obtained in the years 2001-2003, was studied on PDA medium at –10, +2, +6, +12, +18, +22 and +28oC. The growth and sporulation of the isolates were observed at +22oC on the following culture media: PDA, maltose – MA and mineral – MSA, as well as on two versions of oat media, one containing 20 g of oat fl akes per litre (OA-20), and the other containing 50 g of oat fl akes per litre (OA-50). The observations of the linear growth of colonies of the studied strains were carried out during a period of 21 days, whereas the formation of morphological structures until the 52nd day of cultivation. It was found that T. myrtilli can grow and sporulate in a wide range of temperature, even at +2oC. The pathogen growth activates with the increase of temperature, up to the optimal temperature, i.e. from +18oC to +22oC. The increase of temperature to +28oC did not favour the mycelium growth and prevents pathogen sporulation. PDA, OA-20, OA- 50 and MA media can be considered to be the most suitable for the growth and development of T. myrtilli, due to the intensive growth and formation of typical macro- and microscopic features. It is necessary to emphasise the great usefulness of oat medium, especially OA-50, for the cultivation of Topospora myrtilli, in the aspect of sporulation of the fungus. It was found that mineral medium is unsuitable due to the formation of mycelium with an untypical structure and colouration as well as late conidial sporulation.

18

Effect of Sulsil on the growth and sporulation of pathogenic fungi

72%

Majchrzak B., Piekos R., Walerys Z., Okorski A.

Pestycydy

|

2004

|

nr 3-4

19

Studies on the biological control of Phytophthora cryptogea Pethybr. et Laff. III. In vitro inhibition of P.cryptogea development by garlic homogenate and ajoene

72%

Saniewska A., Orlikowski L. B.

Phytopathologia Polonica

|

1993

|

tom 05

20

Control of Phytophthora foot rot of gerbera with chlorothalonil

72%

Orlikowski L. B.

Phytopathologia Polonica

|

1993

|

tom 05

Ograniczanie wyników

Rhythm of sporulation within the section Penicillium clavigerum. I. Induction of endogenous rhythms in Penicillium clavigerum Demelius 310.48.I

Side effects of fungicides and insecticides on entomopathogenic fungi in vitro

Metody wywolywania sporulacji grzybow patogenicznych w banku patogenow roslin

Regulation of sporulation in the yeast Saccharomyces cerevisiae

Further studies on the role of ethylene in the growth and development of Fusarium culmorum (W.G.Sm.) Sacc.

Interactions of abscisic acid and ethylene in the growth and development of Fusarium culmorum (W.G.Sm.) Sacc.

Effect of cultivation conditions on Monilia coryli growth and sporulation

Inhibition of growth and sporulation of Penicillium expansum by extracts of selected Basidiomycetes

Genetic and physiological regulation of bacterial endospore development

Inhibitory effect of caffeine on diploidization and sporulation in fisson yeast Schizosaccharomyces pombe

Control of growth and development of Fusarium culmorum (W.G.Sm.) by abscisic acid under unfavorable pH values of the media and temperature

Effects of culture conditions on the growth and morphology of 20 strains of Drechslera avenae (Eidam) Scharif

Antifungal activity of sodium chloride on Saprolegnia diclina and Aphanomyces sp.

Biotransformation of [-]-menthol by spores of Mucor ramannianus and study of the pathways involved

Oocysts of six new Coccidiomorpha species from pinnipeds of King George Island (South Shetlands, Antarctic)

Growth and sporulation of Penicillium roqueforti strains in the presence of yeasts selected as co-starters for cheese production

The effect of cultivation conditions on growth, sporulation and formation of morphological structures of Topospora myrtilli (Feltg.) Boerema

Effect of Sulsil on the growth and sporulation of pathogenic fungi

Studies on the biological control of Phytophthora cryptogea Pethybr. et Laff. III. In vitro inhibition of P.cryptogea development by garlic homogenate and ajoene

Control of Phytophthora foot rot of gerbera with chlorothalonil