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1

Does response analysis of factors involved in germination of Taraxacum officinale seeds

100%

Bochenek A., Gojlo E.

Acta Physiologiae Plantarum

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1999

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tom 21

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nr 3 suppl.

2

The ecological importance of seed dimorphism in corn spurry (Spergula arvensis L.). 2. The effects of nitrate concentrations and temperature on seed germination

100%

Kucewicz M., Gojlo E.

Polish Journal of Ecology

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2013

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tom 61

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nr 4

Spergula arvenis produces two types of seeds that differ in the absence (non papillate, NP) or presence (papillate, P) of papilla on the seed coat. Corn spurry inhabits cultivated soils and ruderal fields and usually encounters substantial variations in soil nutrients. The objective of this study was to determine the effects of nitrate concentrations and temperature (10–30°C) on the germination of heteromorphic seeds. NP and P seeds were characterized by different nitrate optima, dormancy-breaking temperature and initial germination times. NP seeds germinated better and faster than P seeds. NP seeds germinated at all nitrate solutions and all temperatures. NP seeds responded to 5 mM nitrate concentration at 15, 20 and 30°C. In 25 and 50 mM KNO₃ solution, the germination was relatively high and leveled out at a wider temperature range (15–30°C). The highest germination of NP seeds was at 25°C (25, 50 mM KNO₃). NP seeds began to germinate on the second day of the germination test at 15–30°C (in 25 mM KNO₃ solution) and at 20–30°C (in 50 mM KNO₃ solution). The germination percentage of P seeds was lower than NP seeds under identical conditions. P seeds in water failed to sprout at any of the applied incubation temperatures. Seeds incubated in low and medium nitrate concentrations did not germinate or germinated weakly at all temperatures. Seed dormancy was released in solutions with high nitrate levels incubated at 10–25°C. The highest germination of P seeds was at 50 mM solution and at 15°C. Under these conditions, the P seeds germinated the most (reaching 43%), with the initial germination being observed on experimental day 3,7. P seeds had more requirements for germination than NP seeds. However, in 50 mM KNO₃ solution the range of temperatures over which these seeds were able to germinate was the same regardless of seed type. Nevertheless, the percentage of NP germinants was still much higher. The different requirements for germination of NP and P seeds may result in the production of two offspring cohorts that differ in response to nitrate levels in the soil, population density and temperature conditions. Most likely, this germination strategy is an important mechanism of ecological adaptation that enables the survival of S. arvensis plants in an unpredictable environment.

3

The ecological importance of seed dimorphism in corn spurry (Spergula arvensis L.). I. The effects of day length on seed germinability

100%

Kucewicz M., Gojlo E.

Polish Journal of Ecology

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2013

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tom 61

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nr 4

Spergula arvensis L. (corn spurry) is a heteromorphic species of the Caryophyllaceae family, that produces two types of seeds with a smooth (non papillate, NP) or papillate (P) coat. The plant flowers and produces fruit between May and September, a period marked by a gradual decrease in day length. The objective of this study was to determine the effects of day length on the germinability of heteromorphic seeds. In addition, we examined the frequencies of non papillate and papillate seeds in four populations. Germination tests were performed on seeds harvested from plants grown in a greenhouse under conditions simulating long days (17 hour photoperiod) and short days (12 hour photoperiod). Heteromorphic seeds incubated in water at various temperatures (10–30°C) over a period of 4 weeks remained dormant. Corn spurry seeds had different responses to the addition of nitrate after four weeks of pre-treatment. Both seed morphs kept at a temperature of 10–20°C did not germinate or their germination rates did not exceed 6%. Seeds incubated at 25°C and 30°C broke dormancy. NP seeds from plants growing under long- and short-day photoperiods were characterized by higher germinability than P seeds at both temperatures. The above-mentioned results indicate that variations in light exposure during plant growth and development do not contribute to somatic heteromorphism of S. arvensis seeds. Day length has no significant effect on the germination of heteromorphic seeds. The populations were heteromorphic with respect to plants having papillate seeds and plants having non papillate seeds. The majority of individuals were monomorphic and produced capsules containing only one type of seed. Heteromorphic individuals produced capsules containing: a) NP seeds, and b) P seeds, and c) mixed seeds. The analyzed populations were characterized by a predominance of P seeds in the overall seed pool.

4

Accumulation of alfa-D-galactosides of D-pinitol in developing seeds of Vicia hirsuta (L.) S.F. Gray during desiccation stress

81%

Lahuta L., Gojlo E., Gorecki R.

Acta Physiologiae Plantarum

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2001

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tom 23

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nr 3 suppl.

5

Accumulation of soluble carbohydrates in developing seeds of Vicia hirsuta (L.) S.F. Gray at temperature stress

81%

Gojlo E., Lahuta L., Gorecki R.

Acta Physiologiae Plantarum

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2001

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tom 23

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nr 3 suppl.

6

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The effect of galactinol synthase activity on RFOs content in developing pea seeds (Pisum sativum L.) subjected to drying and cold

81%

Gojlo E., Szymczak M., Kondrat B.

BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology

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2013

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tom 94

|

nr 3

7

Ecophysiological conditions of germination of barnyard grass [Echinochloa crus-galli [L.] P. Beauv.] diaspores

81%

Kucewicz M., Holdynski C., Gojlo E.

Journal of Plant Protection Research

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2006

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tom 46

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nr 1

73-84

The aim of the study was to investigate the effect of some different environmental conditions prevailing during the development and ripening of Echinochloa crus-galli diaspores on their germination. Some seeds were tested in the autumn the same year, whereas others were divided into two groups: dispersed seeds and seeds within the inflorescence. Then the seeds of both groups were buried. After eight-month stratification in the soil, the diaspores were tested under the same conditions as the samples examined in the autumn. The seeds tested in the spring germinated faster than those tested in the autumn. Also the germination capacity of barnyard grass caryopses examined in the summer was almost twofold higher than the germination capacity of those examined in the autumn. Both autumn and spring tests revealed that the harvest time affected germination. The seeds obtained in the second half of August and at the beginning of September (in the middle of the growing season) were characterized by a higher germination capacity than the caryopses collected at the beginning and the end of the reproduction period. The results show that the germination capacity and rate were not influenced by the place of origin, habitat conditions and accompanying plants. It was found in spring tests that germination depended on the kind of dissemination unit stored in the soil. After eight-month soil stratification, dispersed caryopses germinated by approx. 20% better than those stored with a part of the inflorescence.

8

The influence of the drought stress on a-D-galactosides contents and physiological quality of Vicia sativa L. cv Kamiko seeds

81%

Gojlo E., Lahuta L. B., Gorecki R. J., Holdynski C.

Acta Physiologiae Plantarum

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2003

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tom 25

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nr 3 suppl.

9

Wpływ zróżnicowanych warunków termicznych na akumulację węglowodanów rozpuszczalnych w dojrzewających nasionach wyki drobnokwiatowej (Vicia hirsuta (L.) S. F. GRAY)

81%

Gojlo E., Lahuta L. B., Gorecki R. J.

Zeszyty Problemowe Postępów Nauk Rolniczych

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2002

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tom 481

|

nr 1

Przeprowadzono badania nad wpływem różnych temperatur powietrza (5-10, 14-18, 18-20, 20-25, 30-35°C) podczas rozwoju i dojrzewania nasion wyki drobnokwiatowej (Vicia hirsuta (L.) S. F. Gray) na zawartość cukrowców rozpuszczalnych i ich skład jakościowy w dojrzałych nasionach. Przy temperaturach 18-20 i 20-25°C nasiona osiągały pełną dojrzałość po 22-24 dniach od zapylenia. Temperatury niższe wydłużały dojrzewanie (do 36 i 72 dni przy 14-18 i 5-10°C, odpowiednio), natomiast temperatury 30-35°C skróciły dojrzewanie nasion do 18 dni. W warunkach wydłużonej (do 72 dni) i skróconej (do 18 dni) embriogenezy nasiona akumulowały 3-krotnie więcej oligosacharydów rodziny rafinozy (RFO), niż nasiona dojrzewające w przedziale temperatur 14-25°C. Wysoka temperatura (30-35°C) powodowała równie intensywne gromadzenie galaktozylocyklitoli (Gal- C), głównie mono- i digalaktopinitołu A. Zwiększona zawartość RFO i Gal-C sugeruje, że związki te mogą chronią tkanki nasion przed szkodliwymi następstwami przyspieszonego odwadniania (wywołanego wysoką temperaturą), bądź długotrwałego działania chłodu.

10

Akumulacja alfa-D-galaktozydów sacharozy i D-pinitolu w rozwijających się nasionach wyki drobnokwiatowej (Vicia hirsuta (L.) S. F. GRAY) poddanych desykacji

81%

Lahuta L. B., Gojlo E., Gorecki R. J.

Zeszyty Problemowe Postępów Nauk Rolniczych

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2002

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tom 481

|

nr 1

Akumulacja cukrów rodziny rafinozy i galaktozylocyklitoli w rozwijających się nasionach wyki drobnokwiatowej (Vicia hirsuta (L.) S. F. Gray) rozpoczynała się na początku fazy intensywnego wzrostu liścieni i gromadzenia suchej masy. Intensywniej przebiegała w okresie odwadniania nasion. Zasadniczym kierunkiem w biosyntezie cukrów rodziny rafinozy była akumulacja werbaskozy, natomiast wśród galaktozylocyklitoli dominowała synteza mono- i di-galaktopinitolu A. Niedojrzałe nasiona w odpowiedzi na wymuszoną dehydratację reagowały rozpoczęciem i bardzo intensywną biosyntezą wszystkich cukrów rodziny rafinozy, a także wzrostem zawartości D-pinitolu i galaktopinitolu A. Wraz ze wzrostem zawartości obu grup α-D-galaktozydów wzrastała odporność nasion na odwodnienie.

11

The effect of achene heteromorphism on progeny traits in the shaggy soldier [Galinsoga ciliata (Rafin) S. F. Blake]

81%

Kucewicz M., Gojlo E., Kowalska A.

Acta Agrobotanica

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2010

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tom 63

|

nr 2

The shaggy soldier [Galinsoga ciliata (Rafin) S. F. Blake], family Asteraceae] is an invasive species that poses a growing threat to crop production. This annual plant produces heteromorphic achenes in a capitulum type inflorescence. The objective of this study was to compare selected morphological and phenological parameters and the success of generative reproduction in plants developed from peripheral and central achenes of the capitulum. The somatic variability of G. ciliata diaspores contributed to differences in the growth rates, development and fertility of the resulting populations. The progeny of central diaspores developed at a slower rate than the individuals derived from peripheral achenes, but at the end of their life cycle, the offspring of dimorphic achenes formed homogenous groups as regards height values. On average, the initial phenophases of G. ciliata plants derived from central achenes began one day later, and they entered the flowering stage eight days later than the individuals developed from peripheral seeds. At the initial growth stage (experimental day 65 to 83), the progeny of central achenes produced fewer capitula. On day 133, the individual fertility of the plants derived from central diaspores was 10% higher on average in comparison with the offspring of peripheral achenes.

12

Differences in accumulation of soluble alpha-galactosides during seed maturation of several Vicia species

81%

Lahuta L. B., Gorecki R. J., Gojlo E., Horbowicz M.

Acta Physiologiae Plantarum

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2005

|

tom 27

|

nr 2

Composition and levels of soluble α-galactosides: raffinose family oligosaccharides (RFOs) and galactosyl cyclitols (Gal-C) in developing seeds were measured by high resolution gas chromatography (HRGC) method. The studies were performed on maturing seeds of several wild and cultivated Vicia species: Viciaangustifolia L.(commonvetch), Vicia craccaL. (bird vetch), Vicia grandiflora Scop. (large yellow vetch), Vicia hirsuta (L.) S.F.Gray (tiny vetch), Vicia sativa L. (garden vetch, spring-growing cultivar Kwarta), and Vicia villosa Roth (winter vetch). In all Vicia species similar patterns in the accumulation of RF Os were observed. Galactinol - the donor of galactosyl moieties in α-galactosides biosynthesis was present in the middle stage of seed development, before appearing measurable levels of RFOs. Accumulation of RFOs started parallel with seed desiccation process. At first accumulation of the raffinose, then few days later stachyose and finally verbascose was noticed. In the final stage of seed maturation the verbascose was the main soluble α-galactoside (up to 3 % of dry weight, V. sativa). Besides the RFOs seeds of three Vicia species (V. cracca, V. hirsuta, and V. villosa) accumulated D-pinitol and its α-galactosides (Gal-C). Mono-galactosylpinitols (similar to raffinose) appeared in these species 2-4 days after galactinol, di-galactosyl pinitol A (common name: ciceritol) and di-galactosyl myo-inositol were present several days later than raffinose, and accumulation of tri-galactosyl pinitol A (TGPA) began after accumulation of stachyose. Matured seeds of V. hirsuta contained much more RFOs than Gal-C, opposite to seeds of V. villosa, and V. cracca where concentration of Gal-C was 4-8-fold higher than RFOs. In V. cracca seeds RFOs were almost replaced by Gal-C. In seeds of V. cracca and V. villosa the level of D-pinitol was significantly higher, than the level of myo-inositol. Contents of both cyclitols declined rapidly at the beginning of seed desiccation, when accumulation of RFOs and Gal-C quickly ini creased. We suggest that α-galactosides of D-pinitol can substitute raffinose family oligosaccharides and play similar role during seed maturation and storage.

13

Desiccation tolerance of germinating Vicia seeds

81%

Gojlo E., Lahuta L. B., Gorecki R. J.

Polish Journal of Natural Sciences. Supplement

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2003

|

tom 01

14

Desiccation of immature Vicia cracca seeds induces synthesis of alpha-D-galactosides

81%

Gojlo E., Lahuta L. B., Gorecki R. J.

Biological Letters

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2005

|

tom 42

|

nr 2 Spec.Vol.

15

Accumulation of raffinose family oligosaccharides and galactosyl cyclitols in developing Vicia seeds

81%

Lahuta L. B., Gorecki R. J., Gojlo E., Horbowicz M.

Polish Journal of Natural Sciences. Supplement

|

2003

|

tom 01

16

Effect of exogenous abscisic acid on accumulation of raffinose family oligosaccharides and galactosyl cyclitols in tiny vetch seeds [Vicia hirsuta [L.] S.F.Gray]

81%

Lahuta L. B., Gorecki R. J., Gojlo E., Horbowicz M.

Acta Societatis Botanicorum Poloniae

|

2004

|

tom 73

|

nr 4

The role of the abscisic acid (ABA) in biosynthesis of raffinose family oligosaccharides (RFOs) and galactosyl cyclitols (Gal-C) in tiny vetch (Vicia hirsuta [L.] S.F. Gray) seeds was investigated. The ABA was applied through incubation of seed at various stage of its development. The level of RFOs and Gal-C was determined in seed maturing on plant and in seed maturing in vitro. In early stages of V. hirsuta seed development, the ABA activated the biosynthesis of galactinol, although the level of arisen galactinol quickly declined. In the later stages of V. hirsuta seed development ABA had stimulatory effect of RFOs and Gal-C biosynthesis. Influence of ABA on biosynthesis of a-galactosides in Vicia hirsuta seed seems to be dependent on abscisic acid concentration. Low concentration of ABA had stimulatory effect on a-galactosides biosynthesis, but high concentration of ABA inhibited the process.

17

Evaluation of yield, morphology and quality of fruits of cherry silverberry (Elaeagnus multiflora Thunb.) biotypes under conditions of north-eastern Poland

71%

Bieniek A., Pilat B., Szalkiewicz M., Markuszewski B., Gojlo E.

Polish Journal of Natural Sciences

|

2017

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tom 32

|

nr 1

The study evaluated three biotypes of cherry silverberry (obtained from the Institute for Fruit Growing in Samokhvalovitchy in Belarus) for cultivation under the conditions of north-eastern Poland in comparison to the form reproduced and cultivated at the University of Warmia and Mazury in Olsztyn. It was demonstrated that the natural conditions of Olsztyn permit cultivation of the examined cherry silverberry biotypes, although the yield was not high. The 01-1999 biotype from the Polish selection was characterized by a higher yield and weight of fruit, as well as by a higher fruit weight-to-stone weight ratio in comparison to biotypes selected in Belarus. The fruit of the examined biotypes also significantly differed in their chemical composition. Fruits of the 9-19-1996 biotype were characterized by high dry matter content, low acidity and a high sugar-to-acid ratio. The 9-24-1996 biotype fruits were characterized by the highest content of vitamin C. Both fruits and stones of cherry silverberry contained fat rich in n-3 and n-6 fatty acids. In cherry silverberry fruits, this ratio ranged from 1.2:1 to 1.4:1 in the pulp and from 1.4:1 to 1.8:1 in the stone.

18

Changes in LEA proteins, soluble carbohydrates, antioxidants and ROS levels during loss of desiccation tolerance of germinating Vicia hirsuta seeds

71%

Gojlo E., Ratajczak E., Kalemba E., Pukacka S., Gorecki R.

Acta Biologica Cracoviensia. Series Botanica. Supplement

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2009

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tom 51

|

nr 2

19

Exogenously applied D-pinitol and D-chiro-inositol modifies the accumulation of alpha-D-galactosides in developing tiny vetch [Vicia hirsuta [L.] S.F.Gray] seeds

71%

Lahuta L. B., Horbowicz M., Gojlo E., Goszczynska J., Gorecki R. J.

Acta Societatis Botanicorum Poloniae

|

2005

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tom 74

|

nr 4

In the present study we have investigated the effect of exogenous cyclitols on the accumulation of their galactosides and raffinose family oligosaccharides (RFOs), as well as on some enzymes important for their biosynthesis in seeds of tiny vetch (Vicia hirsuta [L.] S.F. Gray). Immature seeds during 6-day incubation with D-chiro-inositol (naturally does not appear in seeds of tiny vetch) were accumulated cyclitol and its galactosides (fagopyritols: B1 and B2). Short 4-hour incubation with D-chiro-inositol, and subsequent slow desiccation process caused accumulation of free cyclitol only, without biosynthesis of its galactosides. Feeding D-chiro-inositol to pods of tiny vetch induced accumulation of high levels of its galactosides (fagopyritol B1, B2 and B3) in maturing seeds. Similarly, feeding D-pinitol increased accumulation of its mono-, di- and tri-galactosides: GPA, GPB, DGPA and TGPA in tiny vetch seed. Accumulation of both cyclitols and their galactosides drastically reduced accumulation of verbascose. Inhibition of RFOs biosynthesis by elevated levels of free cyclitols suggests some competition between formation of both types of galactosides and similarity of both biosynthetic routes in tiny vetch seeds. Galactinol synthase (GolS) from tiny vetch seeds demonstrated ability to utilize D-chiro-inositol as galactosyl acceptor, instead of myo-inositol. Presence of both cyclitols, as substrates for GolS, caused synthesis of their galactosides: fagopyritol B1 and galactinol. However, formation of galactinol was more efficient than fagopyritol B1. D-chiro-Inositol and D-pinitol at concentrations several-fold higher than myo-inositol had inhibitory effect on GolS. Thus, we suggest that a level of free cyclitols can have an influence on the rate of galactinol biosynthesis and further accumulation of RFOs and galactosyl cyclitols in tiny vetch seeds.

20

Analysis of expression profiles of barley, medicago and soybean galactinol synthase through microarray data integration

61%

Paukszto L., Myszczynski K., Gojlo E., Jastrzebski J. P., Pupel P., Podlinski P.

BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology

|

2013

|

tom 94

|

nr 3

Ograniczanie wyników

Does response analysis of factors involved in germination of Taraxacum officinale seeds

The ecological importance of seed dimorphism in corn spurry (Spergula arvensis L.). 2. The effects of nitrate concentrations and temperature on seed germination

The ecological importance of seed dimorphism in corn spurry (Spergula arvensis L.). I. The effects of day length on seed germinability

Accumulation of alfa-D-galactosides of D-pinitol in developing seeds of Vicia hirsuta (L.) S.F. Gray during desiccation stress

Accumulation of soluble carbohydrates in developing seeds of Vicia hirsuta (L.) S.F. Gray at temperature stress

The effect of galactinol synthase activity on RFOs content in developing pea seeds (Pisum sativum L.) subjected to drying and cold

Ecophysiological conditions of germination of barnyard grass [Echinochloa crus-galli [L.] P. Beauv.] diaspores

The influence of the drought stress on a-D-galactosides contents and physiological quality of Vicia sativa L. cv Kamiko seeds

Wpływ zróżnicowanych warunków termicznych na akumulację węglowodanów rozpuszczalnych w dojrzewających nasionach wyki drobnokwiatowej (Vicia hirsuta (L.) S. F. GRAY)

Akumulacja alfa-D-galaktozydów sacharozy i D-pinitolu w rozwijających się nasionach wyki drobnokwiatowej (Vicia hirsuta (L.) S. F. GRAY) poddanych desykacji

The effect of achene heteromorphism on progeny traits in the shaggy soldier [Galinsoga ciliata (Rafin) S. F. Blake]

Differences in accumulation of soluble alpha-galactosides during seed maturation of several Vicia species

Desiccation tolerance of germinating Vicia seeds

Desiccation of immature Vicia cracca seeds induces synthesis of alpha-D-galactosides

Accumulation of raffinose family oligosaccharides and galactosyl cyclitols in developing Vicia seeds

Effect of exogenous abscisic acid on accumulation of raffinose family oligosaccharides and galactosyl cyclitols in tiny vetch seeds [Vicia hirsuta [L.] S.F.Gray]

Evaluation of yield, morphology and quality of fruits of cherry silverberry (Elaeagnus multiflora Thunb.) biotypes under conditions of north-eastern Poland

Changes in LEA proteins, soluble carbohydrates, antioxidants and ROS levels during loss of desiccation tolerance of germinating Vicia hirsuta seeds

Exogenously applied D-pinitol and D-chiro-inositol modifies the accumulation of alpha-D-galactosides in developing tiny vetch [Vicia hirsuta [L.] S.F.Gray] seeds

Analysis of expression profiles of barley, medicago and soybean galactinol synthase through microarray data integration