Search results

1

Characterization of dual specificity protein kinase from maize seedlings.

100%

Trojanek J. B., Klimecka M. M., Fraser A., Dobrowolska G., Muszyńska G.

Acta Biochimica Polonica

|

2004

|

vol. 51

|

issue 3

635-647

EN

A protein kinase of 57 kDa, able to phosphorylate tyrosine in synthetic substrates pol(Glu4,Tyr1) and a fragment of Src tyrosine kinase, was isolated and partly purified from maize seedlings (Zea mays). The protein kinase was able to phosphorylate exogenous proteins: enolase, caseins, histones and myelin basic protein. Amino acid analysis of phosphorylated casein and enolase, as well as of phosphorylated endogenous proteins, showed that both Tyr and Ser residues were phosphorylated. Phosphotyrosine was also immunodetected in the 57 kDa protein fraction. In the protein fraction there are present 57 kDa protein kinase and enolase. This co-purification suggests that enolase can be an endogenous substrate of the kinase. The two proteins could be resolved by two-dimensional electrophoresis. Specific inhibitors of typical protein-tyrosine kinases had essentially no effect on the activity of the maize enzyme. Staurosporine, a nonspecific inhibitor of protein kinases, effectively inhibited the 57 kDa protein kinase. Also, poly L-lysine and heparin inhibited tyrosine phosphorylation by 57 kDa maize protein kinase. The substrate and inhibitor specificities of the 57 kDa maize protein kinase phosphorylating tyrosine indicate that it is a novel plant dual-specificity protein kinase.

2

Effect of Liquid Organic Fertilizers and Soil Moisture Status on Some Biological and Physical Properties of Soil

88%

Moridi A., Zarei M., Moosavi A. A., Ronaghi A.

Polish Journal of Soil Science

|

2021

|

vol. 54

|

issue 1

EN

This study was conducted to evaluate the effects of liquid organic fertilizers (LOFs) and soil moisture status on some biological and physical properties of postharvest soil of maize cultivation. For this purpose, a factorial greenhouse experiment was performed based on the completely randomized design with three replications. Treatments consisted of five levels of LOFs (control, vermicompost tea, vermiwash, plant growth-promoting rhizobacteria [PGPR] enriched vermicompost tea and PGPR enriched vermiwash) and three levels of soil moisture status (field capacity [FC], 0.8 FC and 0.6 FC). The results showed LOFs caused an increase of soil biological properties (soil microbial respiration, soil microbial biomass, dehydrogenase activity and the number of aerobic heterotrophic bacteria) and the improvement of soil physical condition. LOFs increased aggregate stability, hydrophobicity and total porosity, while decreased bulk density and soil penetration resistance. Increasing water stress levels reduced soil biological activity and made soil physical properties more unfavorable. In general, LOFs improved soil conditions by enhancing soil physical and biological properties and decreased the negative effects of water stress. In addition, results showed that LOFs enriched with PGPR could be more effective than non-enriched ones.

3

Interaction of maize (Zea mays) protein phosphatase 2A with tubulin

88%

Awotunde O. S., Lechward K., Krajewska K., Żołnierowicz S., Muszyńska G.

Acta Biochimica Polonica

|

2003

|

vol. 50

|

issue 1

131-138

EN

Immunological and biochemical evidence has been obtained for an interaction of maize protein phosphatase 2A (PP2A) holoenzyme with tubulin. Tubulin co-purifies with maize seedling PP2A. Affinity chromatography of the maize PP2A preparation on immobilized tubulin revealed two peaks of phosphorylase a phosphatase activity. In one of the peaks, the catalytic (C) and constant regulatory (A) subunits of PP2A were identified by Western blotting. The subunits (C and A) of PP2A were co-immunoprecipitated from maize seedlings homogenate by an anti-α-tubulin antibody. The interaction of plant PP2A with tubulin indicates a possible role of reversible protein phosphorylation in the dynamic structure of plant cytoskeleton.

4

The effect of bottom sediment on biomass production by Italian ryegrass and maize

75%

Wiśniowska-Kielian B.

Polish Journal of Chemical Technology

|

2007

|

vol. 9

|

issue 4

48-51

EN

A two-year pot experiment (2005 and 2006) was conducted to estimate an effect of dredged bottom sediment from Rożnów Reservoir addition to the light, very acid soil on the plant biomass production. The sediment was applied in the amount from 1 to 20% of the substratum mass. Italian ryegrass (Lolium multiflorum L.) and maize (Zea mays L.) were cultivated as the successive test plants. The lowest amount of plant biomass was obtained on the soil (control) and each sediment addition to the substratum caused an increase of the biomass production, both tops as well as the roots of the plant. Larger sediment additions (7% and more) caused a significant increase of the yield, of both the individual plant species and the total biomass during the two years of the experiment. The bottom sediment added to the light, very acid soil distinctly improved the plant yielding and the way of biomass utilisation should be assessed on the basis of its chemical composition analysis.

5

Assessment of the tank mixture of mesotrione and pethoxamid plus terbuthylazine efficacy for weed control in maize (Zea mays L.)

75%

A S. G., Pudełko J. A., Waniorek W.

Journal of Plant Protection Research

|

2007

|

vol. 47

|

issue 4

6

Diabrotica virgifera Le Conte – a new threat to maize crops in Poland and measures taken against the pest

75%

Sahajdak A., Bereś P. K., Konefał T.

Journal of Plant Protection Research

|

2006

|

vol. 46

|

issue 2

7

A lag in the advancement of biotechnology: reliable control of maize stem borers in Africa

75%

Olawale S. A., Bushra T., Nauman S. M., Umar B. M., Ahmad N. I., Tayyab H.

Journal of Plant Protection Research

|

2018

|

vol. 58

|

issue 1

8

Stress-tolerant antagonistic plant growth-promoting rhizobacteria from Zea mays

75%

Kaur A., Devi S. R., Vyas P.

Journal of Plant Protection Research

|

2018

|

vol. 58

|

issue 2

9

Impact of extreme climate years on relative “yield – evapotranspiration” relationships

75%

Mladenova B., Varlev I., Mladenova B., Varlev I.

Journal of Water and Land Development

|

2007

|

issue 11

10

CHLOROPHYLL CONTENT OF APHID-INFESTED SEEDLING LEAVES OF FIFTEEN MAIZE GENOTYPES

75%

Sytykiewicz H., Czerniewicz P., Sprawka I., Krzyżanowski R.

|

vol. 55

|

issue 2

11

Ultrastructural Changes in Maize Leaf Cells Infected with Maize Dwarf Mosaic Virus and Sugarcane Mosaic Virus

75%

Zielińska L., Trzmiel K., Jeżewska M.

Acta Biologica Cracoviensia s. Botanica

|

2012

|

vol. 54

|

issue 1

12

Long Wave UV-B Radiation and Asahi SL Modify Flavonoid Content and Radical Scavenging Activity of Zea mays var. saccharata Leaves

75%

Skórska E., Grzeszczuk M., Barańska M., Wójcik-Stopczyńska B.

Acta Biologica Cracoviensia s. Botanica

|

2019

|

vol. 61

|

issue 1

13

Efficiency of botanical extract against maize weevil Sitophilus zeamais (Motschulsky, 1855) (Coleoptera: Curculionidae)

75%

Khanal S., Adhikari A., Tiwari A., Singh N. B., Subedi R.

World News of Natural Sciences

|

2019

|

vol. 24

1-8

EN

With the objective of studying the efficiency of locally available botanical extract on maize weevil, a lab experiment was conducted from Feb 3 to Feb 20 2017, at the entomology lab of Gokuleshwor Agriculture and Animal Science College, Gokuleshwor, Baitadi. The design setup was that of a completely randomized design, with 10 treatments, each treatment was replicated thrice. Two varieties of maize local and a commercial hybrid were treated with five locally available botanical extracts, i.e. Acorous, Rittha, Neem, Asuro and wood ash to examine the efficiency of these on maize weevil. One kilogram of maize grains adjusted to 14% MC was placed in 20 cm high × 8 cm diameter plastic buckets. 10 gram of the powdered botanical pesticides of each of the test materials was then thoroughly mixed with the grains in each bucket. The mortality rate was recorded at 24 hours interval. Herein, Acorous showed the highest mortality rate in both local and hybrid varieties. The order of efficiency was found to Bhojo, Ritha, Ash, Neem and Asuro.

14

Isolation and characterization of a DREB homolog gene from a local drought-tolerant maize cultivar

75%

Huynh T. T. H., Nguyen T. L., Luu H. L., Nguyen H. H., Le H. D., Bui M. M., Pham T. H., Doan T. B. T., Le T. T. H., Ha H. H., Nong V. H., Huynh T. T. H., Nguyen T. L., Luu H. L., Nguyen H. H., Le H. D., Bui M. M., Pham T. H., Doan T. B. T., Le T. T. H., Ha H. H., Nong V. H.

Acta Biologica Cracoviensia s. Botanica

|

2019

|

vol. 61

|

issue 2

15

Some structural properties of plant serine:glyoxylate aminotransferase?

75%

Truszkiewicz W., Paszkowski A.

Acta Biochimica Polonica

|

2005

|

vol. 52

|

issue 2

527-534

EN

The structural properties of photorespiratory serine:glyoxylate aminotransferases (SGAT, EC 2.6.1.45) from maize (Zea mays L.) and wheat (Triticum aestivum L.) leaves were examined. By means of molecular sieving on Zorbax SE-250 column and filtration through centrifugal filters it was shown that dimers of wheat enzyme (molecular mass of about 90 kDa) dissociate into component monomers (molecular mass of about 45 kDa) upon decrease in pH value (from 9.1 or 7.0 to 6.5). At pH 9.1 a 50-fold decrease of ionic strength elicited a similar effect. Under the same conditions homodimers of the maize enzyme (molecular mass similar to that of the wheat enzyme) remained stable. Immunoblot analysis with polyclonal antiserum against wheat seedling SGAT on leaf homogenates or highly purified preparations of both enzymes showed that the immunogenic portions of the wheat enzyme are divergent from those of the maize enzyme. The sequence of 136 amino acids of the maize enzyme and 78 amino acids of the wheat enzyme was established by tandem mass spectrometry with time of flight analyzer. The two enzymes likely share similarity in tertiary and quaternary structures as well as high level of hydrophobicity on their molecular surfaces. They likely differ in the mechanism of transport from the site of biosynthesis to peroxisomes as well as in some aspects of secondary structure.

16

Comparison of Growth Responses to Auxin 1-Naphthaleneacetic Acid and the Ethylene Precursor 1-Aminocyclopropane-1-Carboxilic Acid in Maize Seedling Root

63%

Alarcón M. V., Lloret P. G., Iglesias D. J., Talón M., Salguero J.

Acta Biologica Cracoviensia s. Botanica

|

2012

|

vol. 54

|

issue 1

17

The effect of hard coal ashes on the amount and quality of maize yield

63%

Antonkiewicz J.

|

EN

The research was conducted in 2003 - 2005 as a pot experiment on mineral soil to which ash doses of between 13.33 g and 800.0 g · pot-1 were supplied in proportions corresponding to the amounts of between 10 and 600 t · ha-1. The investigations aimed at learning the effect of diversified ash doses upon the content, ionic relations and the uptake of Mg, Ca, Na and P by maize. Macroelement concentrations in maize were diversified depending on the object and the plant part, fluctuating from 1.52 - 7.49 g Mg; 3.79 - 11.01 g Ca; 8.07 - 23.86 g K; 0.17 - 1.52 g Na; 1.23 - 3.16 g P · kg-1 d.m. It was found that with the growing ash dose the contents of Mg, Ca, K and Na in maize were increasing systematically, whereas P concentrations were decreasing. Magnesium and potassium content in maize aboveground parts met the requirements for a good quality fodder. The level of calcium, sodium and phosphorus in maize did not remain within the optimal range. A systematic increase in Mg uptake but a decline in P absorption by the aboveground parts were registered in maize in effect of growing ash doses.

Refine search results

Characterization of dual specificity protein kinase from maize seedlings.

Effect of Liquid Organic Fertilizers and Soil Moisture Status on Some Biological and Physical Properties of Soil

Interaction of maize (Zea mays) protein phosphatase 2A with tubulin

The effect of bottom sediment on biomass production by Italian ryegrass and maize

Assessment of the tank mixture of mesotrione and pethoxamid plus terbuthylazine efficacy for weed control in maize (Zea mays L.)

Diabrotica virgifera Le Conte – a new threat to maize crops in Poland and measures taken against the pest

A lag in the advancement of biotechnology: reliable control of maize stem borers in Africa

Stress-tolerant antagonistic plant growth-promoting rhizobacteria from Zea mays

Impact of extreme climate years on relative “yield – evapotranspiration” relationships

CHLOROPHYLL CONTENT OF APHID-INFESTED SEEDLING LEAVES OF FIFTEEN MAIZE GENOTYPES

Ultrastructural Changes in Maize Leaf Cells Infected with Maize Dwarf Mosaic Virus and Sugarcane Mosaic Virus

Long Wave UV-B Radiation and Asahi SL Modify Flavonoid Content and Radical Scavenging Activity of Zea mays var. saccharata Leaves

Efficiency of botanical extract against maize weevil Sitophilus zeamais (Motschulsky, 1855) (Coleoptera: Curculionidae)

Isolation and characterization of a DREB homolog gene from a local drought-tolerant maize cultivar

Some structural properties of plant serine:glyoxylate aminotransferase?

Comparison of Growth Responses to Auxin 1-Naphthaleneacetic Acid and the Ethylene Precursor 1-Aminocyclopropane-1-Carboxilic Acid in Maize Seedling Root

The effect of hard coal ashes on the amount and quality of maize yield