Wyniki wyszukiwania - AGRO

1

Production of auxotrophic mutants in Fusarium oxysporum f.sp.lupini

100%

Walkowiak I., Rataj-Guranowska M.

Hodowla Roślin, Aklimatyzacja i Nasiennictwo

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1993

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tom 37

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nr 1-2

2

An identification of the products excreted by Saccharomyces cerevisiae aciplus mutants [acidifying growth media]

100%

Machnicka B., Grochowalska R., Lipinski T., Boniewska E., Slominska L., Lachowicz T. M.

Cellular and Molecular Biology Letters

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2002

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tom 07

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nr Suppl.

3

Characterization of an enzyme preparation obtained from Trichoderma reesei 12 mutant

100%

Czajkowska D.

Applied Biology Communications. Lublin Scientific Center

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1993

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tom 03

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nr 5-6

4

The region for exopolysaccharide synthesis in Rhizobium leguminosarum biovar trifolii is located on the non-symbiotic plasmid

88%

Skorupska A., Derylo M., Golinowski W.

Acta Biochimica Polonica

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1991

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tom 38

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nr 4

5

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Induced isozyme polymorphism in spring barley mutants

88%

Kucharska M., Maluszynski M.

Journal of Applied Genetics

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1996

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tom 37

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nr 1

The usefulness of mutagenic treatment to enlarge isozymic variability of barley and the use of induced mutants for genetic analysis were evaluated. N-methyl-N-nitroso urea, sodium azide and gamma rays were employed as mutagenic agents. Electrophoretic assays of 3848 M₂ seedlings obtained by chemical mutagenic treatment of the spring barley cultivars Dema, Aramir, Bielik and 3100 M₂ seedlings obtained by physical mutagenic treatment of the cv. Dema revealed 70 isozymic mutants, which represent 30 separate mutants in 25 M₁ plants. Most of mutations (27) were induced by chemical mutagen at polymorphic esterase loci. The occurrence of induced mutants at monomorphic loci, Got2 and Lap2, made it possible to perform genetic analysis of those loci in barley including mapping respective genes within chromosomes.

6

Effects of ultraviolet-B radiation in the CO2 fixation, photosystem II activity and spectroscopic properties of the wild and mutant Anacystis cells

88%

Nedunchezhian N., Kulandaivelu G.

Acta Physiologiae Plantarum

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1996

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tom 18

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nr 1

7

Building highways of communication within the nucleus

88%

Hutchison C. J., Ellis D., Jenkins H. F., Kill I. R., Whitfield W. G. F., Smythe C. G.

Cellular and Molecular Biology Letters

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1997

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tom 02

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nr 2

8

Mutants among hetero- and autotrophs and the preservation of characteristic features

88%

Fiema J., Pilipowicz M.

Acta Physiologiae Plantarum

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1997

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tom 19

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nr 2

9

Nucleotide probes of DNA polymerases

88%

Wright G. E.

Acta Biochimica Polonica

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1996

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tom 43

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nr 1

The modified nucleotides, N2-(p-n-butylphenyl)dGTP and 2-(p-n-butylanilino) dATP and related compounds have been developed as inhibitor-probes of B family DNA polymerases. Synthetic approaches to these compounds are summarized. The nucleotides are potent, non-substrate inhibitors of DNA polymerase a. In contrast, they inhibit other members of the family with less potency but act as substrates for these enzymes. Modelling of the inhibitor: enzyme binding mechanism has been done based on the known structure of E. coli DNA polymerase I, and site-directed mutagenesis experiments to evaluate this mechanism are proposed.

10

Characterization of alternative respiratory pathways in the yeast Schwanniomyces castellii by the study of mutants deficient in cytochromes a plus a3 and/or b

75%

Claisse M. L., Boze H., Dubreucq E., Segueilha L., Moulin G., Galzy P.

Acta Biochimica Polonica

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1991

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tom 38

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nr 4

11

Induced chemical mutation in Liatris ligulistylis and Liatris pycnostachya

75%

Krupa-Malkiewicz M., Wraga K., Kantarek Z.

Electronic Journal of Polish Agricultural Universities. Series: Horticulture

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2015

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tom 18

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nr 4

12

The influence of selected pyrethroid on the growth and number of rho-mutants in Saccharomyces cerevisiae yeast

75%

Krzepilko A., Swiecilo A.

Polish Journal of Environmental Studies

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2007

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tom 16

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nr 3

403-406

The main purpose of this study was to examine the influence of pyrethroids, such as deltamethrin, cypermethrin and bifenthrin on the growth and the number of ρ-mutants in the cells of Saccharomyces cerevisiae yeast. SP-4 Mat alpha leu1 arg4 yeast strain was used as a standard strain for experiments. The cells were grown on a standard YPG liquid medium, under aerobic conditions until they reached the logarithmic or stationary phase of growth. Different concentrations of pyrethroid were added to the medium and the cells were incubated for 2 h. The survival rate of the cells was determined by diluting the cells and plating them on YPG Agar plates. The number of ρ-mutants was determined by examining the number of cells that hadn’t grown on YPG medium from among all surviving cells. As far as the investigated forms of pyrethroids are concerned, deltamethrin was the most toxic to yeast cells. It was also observed that low amounts of pyrethroid caused a greater destruction of cells at the logarithmic than at the stationary stage of growth. The influence of pyrethroid on the frequency of mutation of mitochondrial DNA of yeast cells was also studied. It was observed that after incubation with pyrethroid addition the frequency of ρ-mutation increased, especially at the logarithmic stage of growth.

13

Effect of EMS on induced morphological mutants and chromosomal variation in cowpea (Vigna unguiculata (L.) Walp)

75%

Gnanamurthy S., Dhanavel D.

International Letters of Natural Sciences

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2014

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tom 17

Effect of EMS (ethyl methane sulphonate) on induced morphological mutants and chromosomal variation in cowpea was studied using five different doses of mutagen along with a control in randomized blocked design with three replications. The morphological mutants there are two types of viable and chlorophyll mutants. Viable mutant contains tall, dwarf, early maturity, late maturity, leaf mutants pod mutant and flower mutants. The frequency of chlorophyll mutant contains albino, xantha and viridis. This concentration can damage or modify important components of plant cells and have been reported to affect the morphology, anatomy, biochemistry and physiology of plants differentially depending on the concentration level. These effects include changes in the cellular structure and metabolism of the plants e.g., dilation of thylakoid membranes, alteration in photosynthesis, modulation of the antioxidative system and accumulation of phenolic compounds. The morphological and chromosomal variation was found to be mutagen sensitive in somatic cells of cowpea. It was found to increase with increasing the concentration of EMS in Cowpea plants. The chemical mutagen like ethyl methane sulphonate induces high frequency of chromosomal changes like anaphasic bridge; anaphasic laggard, anaphasic bridge and clumbing of chromosome were including control plants also observed.

14

Analysis of selected grasspea mutants by generalized linear model

75%

Bocianowski J., Bakinowska E., Rybinski W.

Colloquium Biometricum

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2008

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tom 38

15

Charakterystyka wybranych mutantow z gatunku Lupinus mutabilis Sweet

75%

Sawicka E. J., Bocian P.

Prace Ogrodu Botanicznego Polskiej Akademii Nauk

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1992

|

tom 02

45-54

16

Mutations modulate soluble carbohydrates composition in seeds of Lathyrus sativus L.

75%

Piotrowicz-Cieslak A. I., Rybinski W., Michalczyk D. J.

Acta Societatis Botanicorum Poloniae

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2008

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tom 77

|

nr 4

281-287

Seeds of Lathyrus sativus cv. Derek and Krab were used as biological material for induced mutagenesis. Three mutant lines were obtained from seeds of grass pea cv. Derek and 15 lines from mutagenised seeds of cv. Krab. Twelve ethanol-soluble carbohydrates were identified in the seeds. We have selected grass pea mutant lines with high oligosaccharides content (lines D4, K56, K25, and K7) and lines with low raffinose family oligosaccharides (RFO) content (lines K12, K29 and K13). Mutations changing the levels of RFO have not affected the contents of galactosyl cyclitols.

17

Genetic variation in mutants of chilli (Capsicum annuum) revealed by RAPD marker

75%

Mullainathan L., Sridevi A., Umavathi S., Sanjai Gandhi E.

International Letters of Natural Sciences

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2014

|

tom 06

The present study was under taken in order to analyze the chemical mutagenesis on Chilli germplasm. In this regard, K1 variety of chilli was subjected to different mutagenic concentration for inducing mutagenesis. The M3 plants exposed to EMS and DES to produce clear difference from the untreated control, thus indicating that mutagenic treatment produce polymorphic regions in the chilli. For extraction of genomic DNA was adopted an improved protocol of CTAB method with slight modification. A total of ten primers were used to screen the polymorphism among the treated populations line tall, tall with chlorophyll deficient, leaf, flower, GMS and DNA damages in maturity mutants were analyzed with control. Out of ten primers, four primers (PGF02, PGF03, PGF04 AND OP107) were successfully amplified in all the samples used for this study. The successful primers were amplified in to 93 products showing an average of 9.3 bands.

18

Mechanical touch responses of Arabidopsis TCH1-3 mutant roots on inclined hard-agar surface

75%

Zha G., Wang B., Liu J., Yan J., Zhu L., Yang X.

International Agrophysics

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2016

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tom 30

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nr 1

19

Ampicillin resistance in Listeria monocytogenes acquired as a result of transposon mutagenesis

75%

Poros-Gluchowska J., Kloszewska M., Markiewicz Z.

Acta Microbiologica Polonica

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2003

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tom 52

|

nr 2

20

Deficiency in superoxide dismutases shortens life span of yeast cells

75%

Wawryn J., Krzepilko A., Myszka A., Bilinski T.

Acta Biochimica Polonica

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1999

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tom 46

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nr 2

Deficiencies in superoxide dismutases (Cu,Zn-SOD or Mn-SOD) strongly shorten the life span of yeast cells. The effects of these deficiencies are additive. In contrast, deficiencies in catalases do not influence life span. Our results confirm that free radical processes may be involved in aging.

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