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1

Effect of the angle in incidence of a stimulating light beam on phototactic orientation of Amoeba proteus

100%

Lazowski K., Kuznicki L.

Acta Protozoologica

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1991

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tom 30

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nr 2

2

Influence of light of different colors on motile behavior and cytoplasmic streaming in Amoeba proteus

100%

Lazowski K., Kuznicki L.

Acta Protozoologica

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1991

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tom 30

|

nr 2

3

Impact of light spectral composition and ozone fumigation on chlorophyll content changes and optical properties of broccoli leaves

84%

Skoczowski A., Czyczylo-Mysza I., Skwarek A., Pilarski J., Grzesiak W., Nowak T.

Zeszyty Problemowe Postępów Nauk Rolniczych

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2010

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tom 545

The aim of the present study was to examine the influence of spectral composition of irradiation (white - WL or white supplemented by blue radiation - WBL) and ozone on chlorophyll content and the optical properties of broccoli leaves (Brassica oleracea var. botrytis cymosa). Broccoli leaves were injured by the ozone dose applied (70 ppb, 6 hours daily) mainly under WBL. Leaf lamina damage was much larger in the outer, physiologically older part than in the inner, physiologically younger part. Therefore, further studies were carried out separately on leaf fragments from the outer(OP) and the inner parts (IP). The spectrophotometric analysis did not reveal significant differences in the chlorophyll content between treatments. The variations in reflectance in the visible region (400-700 nm) were generally not significant with respect to tissue age (OP, IP), ozone fumigation and growth conditions (WBL, WL). Only in plants grown under WBL there was an increase in green reflectance in ozone-treated leaves observed, which indicates a decrease in the chlorophyll content in leaves. Thus, measurements of the optical properties of leaves provide more precise information about changes in the content of chlorophyll than spectrophotometry. Leaves under WBL showed significant differences in reflection within the range 800-1100 nm, which depended on the physiological age of the tissue. For physiologically older tissues, values of reflection were lower than those for physiologically younger tissues. However, under WL conditions, a decrease in reflection within the 800-1100 nm rangę depended only on ozone fumigation. Response of broccoli leaves to spectral composition of irradiation and ozone stress was much higher for irradiation transmission than for reflection. Compared to the control, ozone fumigation of broccoli leaves grown in WBL increased irradiation transmission in OP and IP leaf fragments, both in the 500-700 nm and 750-1100 nm ranges. For plants growing in WL no influence of ozone fumigation on the transmission of irradiation within the visible range was observed. However, fumigation with ozone resulted in a significant decrease in the transmission within the infrared range (750 to 1100 nm). The results indicate the major role of irradiation spectral composition in plant response to ozone stress. The modifications may affect Chl content, leaf temperature and, what is more important, phytochrome-controlled morphogenetic processes.

4

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Chiral changes of cortical microtubule orientations in epidermis of sunflower hypocotyls. The effect of blue and red light

84%

Burian A.

Acta Societatis Botanicorum Poloniae

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2007

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tom 76

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nr 4

269-275

Light and developmental processes affect the cortical microtubule (cMT) orientation. The cMT orientation with a special regard to its chirality was analyzed under the outer epidermal cell walls in different regions of sunflower hypocotyls kept in darkness and after irradiation with blue and red light. The results show that the cMT orientation depends on the cell position along hypocotyl, but generally cMTs are oblique. The oblique orientation has defined chirality: either of Z-form (right-handed) or S-form (left-handed). In the lower region of hypocotyls the Z-form dominates. After irradiation of hypocotyls with blue light this domination has been maintained and appeared also in the upper region. In contrast, after irradiation with red light the Z-form domination has not been apparent. It is proposed that in darkness, variations of cMT orientations in the epidermis along the hypocotyl are due to developmental processes, while blue and red light affect the cMT orientation via "shifting" these processes backward and forward, respectively.

5

Effect of red and blue light on growth, flowering and quality of ornamental nursery shrubs

84%

Bielenin M., Joustra M.

Roczniki Akademii Rolniczej w Poznaniu. Ogrodnictwo

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2000

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tom 31

|

nr 1

6

Myosins respond to blue light

84%

Krzeszowiec W., Banas A. K., Walczak T., Gabrys H.

Biological Letters

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2005

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tom 42

|

nr 2 Spec.Vol.

7

Effect of blue light on the growth of chrysanthemum under long and short day

67%

Zalewska M., Wozny A.

Electronic Journal of Polish Agricultural Universities. Series: Horticulture

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2006

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tom 09

|

nr 4

8

Signal transduction at the cell membrane of Halobacterium. An overview and recent results

67%

Hildebrand E., Schimz A.

Biophysics of Membrane Transport

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1994

|

tom 12

|

nr 1

9

Correlation between chloroplast motility and elastic properties of tobacco mesophyll protoplasts

67%

Augustynowicz J., Lekka M., Burda K., Gabrys H.

Acta Physiologiae Plantarum

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2001

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tom 23

|

nr 3

10

Role of photosynthesis in the control of blue light-induced chloroplast movements. Inhibitor study

67%

Slesak I., Gabrys H.

Acta Physiologiae Plantarum

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1996

|

tom 18

|

nr 2

11

Effect of light quality on seed germination, seedling growth and pigment content in Amaranthus caudatus and Celosia cristata nana

67%

Nowak J., Rudnicki R. M., Grzesik M.

Journal of Fruit and Ornamental Plant Research

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1996

|

tom 04

|

nr 4

12

Spatial and temporal changes in some optical parameters in the southern Baltic

67%

Olszewski J., Sagan S., Darecki M.

Oceanologia

|

1992

|

tom 33

13

Influence of the light color and microbiological inoculums on the zonal pelargonium quality and microbiological and enzymatic state of the substrate

59%

Schroeter-Zakrzewska A., Wolna-Maruwka A., Borowiak K.

Acta Scientiarum Polonorum. Hortorum Cultus

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2019

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tom 18

|

nr 4

Two inoculums: Effective Microorganisms (EM) specimen available on the market and microbiological BAF1 inoculum, were applied in the experiment. The plants were cultivated in the growth chamber equipped with shelves with fluorescent or LED lamps. The highest number of inflorescences was under the influence of white color of light emitted by fluorescent lamps and blue color of light emitted by LED lamps, especially after application of BAF1 inoculum. Irrespective of microbiological inoculum, no significant effect of the color of light and type of lamps on such traits as height of leaves layer, number of leaves, greening index of leaves (SPAD) and length of inflorescences, was found. The white color light emitted by fluorescent lamps stimulated actinobacteria multiplication, especially after EM application. Regardless of the inoculum application, it was the blue color light emitted by LED lamps that stimulated the multiplication of moldy fungi. After the use of fluorescent lamps, the increase in dehydrogenase activity was observed, especially after the application of BAF1 inoculum. The activity of acid phosphatase was stimulated by blue and white+blue light emitted by LED lamps. The increase in the activity of urease was observed under fluorescent lamps emitting the green, blue and white color of light, after the application of EM.

14

Wpływ składu spektralnego światła na wzrost rozsady bazylii pospolitej (Ocimum basilicum L.), melisy lekarskiej (Melissa officinalis L.) i ogórecznika lekarskiego (Borago officinalis L.)

51%

Glowacka B.

Zeszyty Problemowe Postępów Nauk Rolniczych

|

2008

|

tom 527

Nasiona bazylii, melisy i ogórecznika wysiano do doniczek w pokoju wzrostowym, pod lampami jarzeniowymi emitującymi światło niebieskie (TLD 18), dzienne - zbliżone do naturalnego (TLD 54) i mieszane, czyli dzienne i niebieskie. Natężenie napromienienia kwantowego światła wynosiło 70 µmol·m⁻²·s⁻¹. Określono dynamikę wzrostu roślin, ich ważniejsze cechy morfologiczne oraz świeżą i suchą masę części nadziemnych. Najintensywniejszy wzrost zaobserwowano pod wpływem światła niebieskiego. U bazylii i melisy światło niebieskie wpłynęło pozytywnie na liczbę liści. Najkorzystniejszy pokrój bazylii i ogórecznika uzyskano w świetle mieszanym, melisa rosła najlepiej w świetle niebieskim. Świeża i sucha masa pędu bazylii uzyskała największą wartość w świetle niebieskim, najmniejszą masę miały rośliny rosnące w świetle dziennym. Obserwowano też pozytywny wpływ niebieskiego światła na procentowy udział suchej masy w świeżej. Świeża i sucha masa pędu melisy była największa w świetle niebieskim, a najmniejsza w dziennym. Skład spektralny światła nie wpłynął na procentowy udział suchej masy w świeżej. Światło nie wpłynęło na świeżą masę pędu ogórecznika, obserwowano jednak największą suchą masę i jej udział w świeżej u roślin rosnących w świetle niebieskim. Najmniejszą suchą masę uzyskały rośliny ogórecznika poddane wpływowi światła dziennego.

Ograniczanie wyników

Effect of the angle in incidence of a stimulating light beam on phototactic orientation of Amoeba proteus

Influence of light of different colors on motile behavior and cytoplasmic streaming in Amoeba proteus

Impact of light spectral composition and ozone fumigation on chlorophyll content changes and optical properties of broccoli leaves

Chiral changes of cortical microtubule orientations in epidermis of sunflower hypocotyls. The effect of blue and red light

Effect of red and blue light on growth, flowering and quality of ornamental nursery shrubs

Myosins respond to blue light

Effect of blue light on the growth of chrysanthemum under long and short day

Signal transduction at the cell membrane of Halobacterium. An overview and recent results

Correlation between chloroplast motility and elastic properties of tobacco mesophyll protoplasts

Role of photosynthesis in the control of blue light-induced chloroplast movements. Inhibitor study

Effect of light quality on seed germination, seedling growth and pigment content in Amaranthus caudatus and Celosia cristata nana

Spatial and temporal changes in some optical parameters in the southern Baltic

Influence of the light color and microbiological inoculums on the zonal pelargonium quality and microbiological and enzymatic state of the substrate

Wpływ składu spektralnego światła na wzrost rozsady bazylii pospolitej (Ocimum basilicum L.), melisy lekarskiej (Melissa officinalis L.) i ogórecznika lekarskiego (Borago officinalis L.)