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Wyświetlanie 1-15 z 329
Tytuł:
Analysis of the germination proteins in Alicyclobacillus acidoterrestris spores subjected to external factors
Autorzy:
Porębska, Izabela
Sokołowska, Barbara
Powiązania:
https://bibliotekanauki.pl/articles/1038651.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
Alicyclobacillus acidoterrestris
spore germination
germination proteins
SDS-PAGE
Opis:
The presence of Alicyclobacillus acidoterrestris, a thermoacidophilic and spore-forming bacterium, in pasteurized acidic juices poses a serious problem for the processing industry. Therefore, the use of other more effective techniques, such as high hydrostatic pressure (HHP) and supercritical carbon dioxide (SCCD), is considered for preserving juices in order to inactivate these bacteria, while reducing the loss of nutrients and sensory quality of juices. On the other hand, HHP and SCCD when combined with a moderately elevated temperature can induce germination of bacterial spores, making them more vulnerable to inactivation. The spore germination can be also induced by nutrients, such as L-alanine or a mixture of asparagine, glucose, fructose and potassium ions (AGFK). The aim of this work was to determine whether applying activating agents: HHP, SCCD and nutrient germinants (L-alanine and the AGFK mixture), could influence the number of spores which start to germinate and how this affects the proteins involved in the spore germination. SDS-PAGE was used to resolve proteins isolated from the A. acidoterrestris spores. The results that were obtained indicate that the germination of A. acidoterrestris spores treated with HHP, SCCD and nutrient germinants reflect the number of spores which start to germinate. The SDS-PAGE data indicated changes in the level of selected proteins occurring when subjected to the germination activating factors as well as noticeable differences in those proteins' molecular weights.
Źródło:
Acta Biochimica Polonica; 2017, 64, 2; 301-305
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of laser and variable magnetic field simulation on amaranth seeds germination
Autorzy:
Dziwulska-Hunek, A
Kornarzynski, K.
Matwijczuk, A.
Pietruszewski, S.
Szot, B.
Powiązania:
https://bibliotekanauki.pl/articles/26336.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
laser
magnetic field
simulation
amaranth
seed germination
germination temperature
Źródło:
International Agrophysics; 2009, 23, 3; 229-235
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of cytokinins on flax seed germination at low temperature
Autorzy:
Buklaha, S
Niedzwiedz-Siegien, I.
Powiązania:
https://bibliotekanauki.pl/articles/58497.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
cytokinin
flax
seed germination
low temperature
germination
gibberellin
Linum usitatissimum
Opis:
Germination of flax seeds (Linum usitatissimum L., cv. Szafir) at 5oC was enhanced by continuous white light, gibberellin A3 (GA3), kinetin and benzylaminopurine. GA3 and kinetin at physiological concentrations (10-8-10-6 M) improved significantly germination in darkness. Stimulatory effect of benzylaminopurine was visible only in the light. Almost no effect of zeatin and isopentenyladenine (2iP) on germination was observed. Possible causes of this differences were suggested.
Źródło:
Acta Societatis Botanicorum Poloniae; 2006, 75, 4; 281-284
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Quality of beechnuts from different crop years
Autorzy:
Prochazkova, Z
Bezdeckova, L.
Martincova, J.
Palatova, E.
Powiązania:
https://bibliotekanauki.pl/articles/41398.pdf
Data publikacji:
2002
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
viability
beechmast
Fagus sylvatica
quality
crop
germination value
storage
germination
Opis:
Fresh and stored beechnuts collected in 1992, 1995, 1998, 1999 and 2000 were tested for viability and in 1998, 1999 and 2000 also for germination. Germination parameters such as peakvalue, mean weekly germination (modified mean daily germination), germination capacity, and germination value (Czabator 1962) were calculated from the germination test data and these indicators were also used for comparing beechnut quality. The highest viability for pre-stored beechnuts occurred in 1998 (80%) and this increased by 4% when these seedlots were stored for 1.5 years. Viability of fresh beechnuts collected in 1992, 1995 and 1999 was 64, 73 and 77%, respectively. Viability of 1995-collected beechnuts decreased after 3 years storage. Germination of fresh seeds was only done for the 1998, 1999 and 2000 collections where the best germination occurred for the 1998 collection. Germination of beechnuts collected in 1992 and 1995 was significantly reduced after 3 and 6 years of storage, respectively, while beechnuts collected in 1998 and stored for 1.5 years germinated about 15% better than fresh seeds of the 1999 crop. The peakvalue, mean weekly germination and the time required for viable seeds to reach 80% germination showed that the 1998 crop had the highest, overall quality. Eighty percent of the viable seeds collected in 1998 germinated in 9-10 weeks while fresh beechnuts from 1999 needed nearly 13 weeks to germinate, as did beechnuts collected in 1992 and stored for 7 years. Besides the germination capacity the germination value seems to be the very good indicator for determining the quality of stored beechnuts.
Źródło:
Dendrobiology; 2002, 47 Supplement
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ kondycjonowania na kiełkowanie i wigor nasion bratka ogrodowego (Viola x wittrockiana Gams.)
The effect of priming on germination and vigour of pansy (Viola x wittrockiana Gams.) seeds
Autorzy:
Dorna, H.
Li, W.
Szopińska, D.
Powiązania:
https://bibliotekanauki.pl/articles/11542861.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
priming
germination
vigor
seed
pansy
Viola x wittrockiana
germination capacity
Opis:
Porównywano wpływ trzech metod kondycjonowania: hydrokondycjonowania, kondycjonowania w solach mineralnych oraz osmokondycjonowania na kiełkowanie i wigor nasion fiołka ogrodowego w temperaturze 20, 30 i 35°C. Nasiona hydrokondycjonowano w ograniczonej ilości wody (600 i 700 μl H2O·g nasion-1, 2, 3 lub 4 dni), kondycjonowano w roztworze KNO3 (-1.5 MPa, 5 dni) oraz osmokondycjonowano w roztworach glikolu polietylenowego (-1,0, -1,25 lub -1,5 MPa PEG 8000, 7 dni) w temperaturze 15 lub 20°C. Oceniano kiełkowanie i wigor nasion niekondycjonowanych i kondycjonowanych. Na ogól hydro-kondycjonowanie negatywnie wpływało na szybkość kiełkowania, procent kiełkujących nasion oraz zdolność kiełkowania. Kondycjonowanie w roztworze KNO3 przyśpieszyło kiełkowanie nasion w temperaturze 20, 30 i 35°C, ale nie miało wpływu na procent nasion kiełkujących i zdolność kiełkowania. Osmokondycjonowanie nasion w roztworze PEG o potencjale osmotycznym -1.0 MPa w temperaturze 20°C nie tylko znacząco poprawiaáo wskaźniki wigoru w temperaturze 20, 30 i 35°C, ale również najkorzystniej z zastosowanych metod wpáywaáo na procent nasion kiełkujących w temperaturze 30 i 35°C i istotnie zwiększyło zdolność kiełkowania nasion w temperaturze 20 i 30°C.
Three seed priming techniques: hydropriming, halopriming and osmopriming, were compared for their effects on germination and vigour of pansy (Viola × wittrockiana Gams.) seeds at 20°C, 30°C and 35°C. Seeds were hydroprimed in the restricted volumes of water (600 and 700 μl H2O·g seed-1, 2, 3 or 4 days), haloprimed in KNO3 solution (-1.5 MPa, 5 days), and osmoprimed in polyethylene glycol solutions (-1.0, -1.25 or -1.5 MPa PEG 8000, 7 days) at 15°C or 20°C. Seed germination and vigour tests were performed for untreated and primed seeds. Generally, hydropriming negatively affected the speed of germination, the percentage of germinating seeds and germination capacity. Halopriming accelerated seed germination at 20°C, 30°C and 35°C but did not influence the percentage of germinating seeds and germination capacity. Osmopriming of seeds in PEG solution of osmotic potential –1.0 MPa at 20°C not only improved germination rates at 20°C, 30°C, and 35°C to the highest extent, but also increased percentage of germinating seeds at 30°C and 35°C most effectively and positively affected seed germination capacity at 20°C and 30°C.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2014, 13, 6; 15-29
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Magnetic biostimulation of wheat seeds
Autorzy:
Pietruszewski, S.
Kornarzynski, K.
Powiązania:
https://bibliotekanauki.pl/articles/26349.pdf
Data publikacji:
1999
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
germination speed
wheat
magnetic exposure time
germination capacity
magnetic biostimulation
seed
Źródło:
International Agrophysics; 1999, 13, 4
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An effective protocol for in vitro germination and seedling development of lentisk (Pistacia lentiscus L.)
Autorzy:
Yıldırım, H.
Çalar, N.
Onay, A.
Powiązania:
https://bibliotekanauki.pl/articles/11860763.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
lentisk
Pistacia lentiscus
germination
seed germination
in vitro germination
plant propagation
micropropagation
seedling development
genetic transformation
plant research
breeding research
Opis:
Different nutrient media (MS [Murashige and Skoog 1962]; QL [Quoirin and Lepoivre 1977] and WPM [Lloyd and McCown 1980]); plant growth regulators BA (benzil adenin), GA3 (gibberellic acid), IBA (indole-3-butyric-acid), NAA (naftalen acedic acid); and sucrose concentrations were studied to determine the in vitro culture effects on healthier and faster seedling development from mature lentisk (Pistacia lentiscus L.) seeds. After 28 days of culture, the percentage of germinated seeds was the highest (70%) in the full-strength MS medium. The cytokinin BA was superior to other tested treatments in terms of its ability to promote germination of lentisk seeds. When tested at different concentrations, sucrose gave the best results obtained at concentrations of 1–4%, whereas high concentrations (6 and 8%) mainly decreased germination rate and there was no a regular pattern for elongation of the aerial parts of plants. With this described protocol, on average 76.67% seeds germinated 4 weeks after culture. Developed seedlings were satisfactorily acclimatized in sterilized peat, soil and perlite containing compost, with high percentage survival viability was obtained 9 months after transfer to in vivo conditions (93.33%). The results obtained showed that the enriched full-strength MS medium supplemented with 1 mg L–1 BA and 3% sucrose induced homogeneous and healthy seedling development in a period of 4 to 8 weeks of culture.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2018, 17, 4; 3-13
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Germination response of grasspea (Lathyrus Sativus L/) and arugula (Eruca Sativa L.) to osmotic and salinity stresses
Autorzy:
Fallahi, Hamid-Reza
Fadaeian, Golsoom
Gholami, Marziyeh
Daneshkhah, Omolbanin
Hosseini, Fatemeh Sadat
Aghhavani-Shajari, Mahsa
Samadzadeh, Alireza
Powiązania:
https://bibliotekanauki.pl/articles/2199634.pdf
Data publikacji:
2015-06-20
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
environmental stresses
germination percentage
germination rate
poluethylene glycol
sodium chloride
Opis:
The use of genetic potential of forgotten plants such as grasspea and arugula is an appropriate strategy for increasing of plants tolerance to environmental stresses. Therefore, in this laboratory study the effects of different levels of osmotic (0, -2, -4, -6, -8, -10, -12 and -14 bar caused by PEG) and salinity (0, 50, 100, 150, 200, 250, 300 and 350 mmol induced by NaCl) stresses were evaluated on germination indices of grasspea and arugula in four separate experiments. Arugula showed a suitable tolerance to osmotic stress, so that its germination percentage and rate at treatment of -10 bar were similar to control. Arugula had 79% germination at osmotic level of -14 bar, but its germination rate at this level was 60% lower than control. In addition, its radicle length until -8 bar and radicle dry weight up to -14 bar were higher than control treatment. However, all levels of salinity stress particularly treatments of more than 100-150 mmol decreased the germination indices of arugula. Germination percentage of arugula in 150 and 200 mmol treatments was 22 and 56% lower than control treatment, respectively. Grasspea had partially suitable tolerance to osmotic stress until -6 bar, but then intensified the reducing trends of its germination indices and finally reached to zero at -14 bar treatment. Moreover, salinity stress especially treatments of higher than 100 mmol decreased all germination indices of grasspea. Overall, arugula was a more tolerant plant especially to osmotic stress; therefore this forgotten plant can be used in agronomic and breeding programs in areas affected by drought stress
Źródło:
Plant Breeding and Seed Science; 2015, 71; 97-108
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of soil extracts from a monoculture of spring wheat (Triticum aestivum L.) grown under different tillage systems on the germination of its seeds
Wpływ wyciągów glebowych spod monokultury pszenicy jarej (Triticum aestivum L.) z różnych systemów uprawy roli na kiełkowanie jej ziarniaków
Autorzy:
Kraska, P.
Powiązania:
https://bibliotekanauki.pl/articles/27578.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
soil extract
monoculture
wheat
spring wheat
Triticum aestivum
tillage system
germination
seed
catch crop
allelopathy
germination energy
germination capacity
o-dihydroxyphenol
Opis:
The present experiment was carried out in the period 2006–2008. The aim of this study was to determine the effect of aqueous soil extracts from the soil of a spring wheat monoculture on seed germination energy and capacity, the length of the first leaf and of the longest radicle as well as the number of radicles. Moreover, the content of 0-dihydroxyphenols in the soil was compared in the last year of the study. The soil used to prepare the solutions came from a field experiment established on medium heavy mixed rendzina soil. Spring wheat, cv. Zebra, was grown using plough tillage and two conservation tillage methods in the presence of undersown crops (red clover, Westerwolds ryegrass) and stubble crops (lacy phacelia, white mustard). Germination energy of the seeds watered with the soil extracts from the ploughed plots was significantly higher than this trait in the seeds watered with the extracts from the conservation tillage treatments with spring disking of the catch crops. Germination energy and capacity of spring wheat in the control treatment watered with distilled water were significantly higher compared to the other treatments under evaluation. Spring wheat watered with the aqueous extract prepared from the soil obtained from the plough tillage treatment produced a significantly longer first leaf compared to the treatments in which both conservation tillage methods had been used. The shortest leaf and the lowest number of radicles were produced by the seedlings watered with the soil extract from the treatment with the white clover stubble crop. Radicle length was not significantly differentiated by the soil extracts under consideration. The content of 0-dihydroxyphenols in the rendzina soil determined during the spring period was higher than that determined in the autumn. The content of 0-dihydroxyphenols in the soil was lower in the conservation tillage treatments with autumn incorporation of the catch crops than in the plots in which plough tillage and conservation tillage with spring disking of the catch crops had been used. The type of catch crop used did not have a significant effect on the soil content of these compounds. At the same time, it was found that the treatments in which the catch crops had been sown tended to have higher contents of these compounds compared to the plots without catch crops.
Źródło:
Acta Agrobotanica; 2011, 64, 1
0065-0951
2300-357X
Pojawia się w:
Acta Agrobotanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Response of oil and protein content to seed size in cotton(Gossypium hirsutum L., cv. Sahel).
Autorzy:
Pahlavani, M. H.
Miri, A.A.
Kazemi, G.
Powiązania:
https://bibliotekanauki.pl/articles/2199173.pdf
Data publikacji:
2009-06-21
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
cotton
emergence
germination
oil
seed
Opis:
This study was designed to identify the response of oil and protein content to non-heritable variation of seed size in cotton (Gossypium hirsutum L.). The experiment was conducted at Gorgan University of Agricultural Sciences, Gorgan, Iran in 2005. The results showed that germination and emergence increased linearity with seed size and R2 of these relationships were 92 and 89%, respectively. This means that larger seed had higher potential of germination and emergence. Also, there was a strong linear relationship between seed weight and oil content. Seed weight provided a better indication of oil content (R2=0.78) than protein content (R2=0.43). There are no considerable relationship between seed size and protein content of seed...
Źródło:
Plant Breeding and Seed Science; 2009, 59; 53-64
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Germination and Biochemical Responses to Alkalinity Stress in Two Sesame Cultivars
Autorzy:
Mahdavi, Batool
Powiązania:
https://bibliotekanauki.pl/articles/2199662.pdf
Data publikacji:
2016-06-20
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
alkaline stress
germination
proline
sesame
Opis:
In this study, the effect of different alkaline concentrations (0, 10, 20, 30, 40, 50, 60 mM) on germination and biochemical characteristics of the two sesame (Sesamum indicum L.) cultivares (Dashtestan and GL-13) which are registered cultivars of Iran were investigated. The experiment was carried out in a completely randomized design with three replications. Results showed that , germination percentage, germination rate, shoot length and dry weight, root length and dry weight and K+ content decreased, whereas, malondialdehyde (MDA), proline, total soluble sugars and Na+ contents increased with increasing alkalinity stress. GL-13 cultivar had the least root and shoot length, proline and K+ content than Dashtestan.
Źródło:
Plant Breeding and Seed Science; 2016, 73; 79-86
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of Seed Emergence, Seedling Vigor Enhancement of Some Populations From Satureja Bachtiarica With Chemical, Mechanical and Physiological Treatment
Autorzy:
Alizadeh, M. A.
Arab, H.A.
Tabaie, R.
Nasiri, M.
Jafari, A.A.
Powiązania:
https://bibliotekanauki.pl/articles/2199668.pdf
Data publikacji:
2016-12-20
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
dormancy
germination
Satureja bachtiarica
vigor
Opis:
The seeds of 3 populations from Satureja bachtiarica were collected from three native vegetation areas (Simirom2, Sharkord and Yazd). The different treatments including: cold stratification, gibberlic acid (50 and 100 ppm) Potassium nitrate (0.2 and 0.4 percent). Physical scarification (sand paper), chemical scarification (Ethylic alcohol %70) and distilled water (control) were used for breaking dormancy of the seed samples. For greenhouse experiment, the seed samples were treated with treatments and then were sown in pots using randomize design with three replications. Emergence percentage, emergence speed, length of root and shoot, seedling length, root/shoot length ratio, vigor index, seedling fresh and dry weight, dry/fresh weight ratio were evaluated during 45 days of experiment. Comparing of population Semirom2 form savory of Bachtiary was higher than other population. It was concluded that effect of gibberlic acid and potassium nitrate was higher than physical scarification and chemical scarification comparing with control.
Źródło:
Plant Breeding and Seed Science; 2016, 74; 37-44
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chemical-induced seed germination and enhancement of seed potential of seven wild plant taxa of Ericaceae in India
Autorzy:
Chandan Kumar, Pati
Bhattacharjee, Aloke
Roy, Priyankar
Mahanty, Dibyendu S.
Panda, Subhasis
Powiązania:
https://bibliotekanauki.pl/articles/1158777.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Ericaceae
Seed germination
T50 of germination
catalase
protein
seed metabolism
Opis:
Pretreatment of seeds of seven wild plant taxa (viz., Gaultheria hookeri C. B. Clarke, G. stapfiana Airy Shaw, G. semi-infera (C. B. Clarke) Airy Shaw, G. trichophylla Royle var. ovata Panda & Sanjappa, Lyonia ovalifolia (Wall.) Drude var. ovalifolia, Pieris formosa (Wall.) D. Don and Vaccinium glauco-album C. B. Clarke) in the family Ericaceae using Na-dikegulac (Na-DK) for 8 hours (4 + 4 h in two installments) before keeping in ambient storage condition (32±2 ºC) for different durations (0 and 20 days) slowed down the rapid loss of germination and reduced the time (h) required for 50% seed germination (T50). Concomitantly, the reduction of protein level as well as the activity of catalase of seed kernels during storage period was ameliorated to a significant extent in the chemical pretreated seed lots.
Źródło:
World Scientific News; 2018, 114; 249-255
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pollen viability and in vitro germination of selected Central European species from genus Rosa analysed with different methods
Autorzy:
Wronska-Pilarek, D.
Tomlik-Wyremblewska, A.
Powiązania:
https://bibliotekanauki.pl/articles/41113.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
pollen viability
in vitro germination
germination
Rosaceae
European species
Rosa
analysis method
different method
Opis:
The main aim of the study was to determine which of the viability and germination capacity of pollen grains estimation methods are optimal and to test if the studied sections and species within the Rosa genus are differentiated in pollen viability andgermination capacity. We analysedandcomparedpollen grains of 14 wild Rosa species using 5 viability tests and13 various liquidandagar media. Viability of pollen grains in the majority of the examinedspecies was greater than their germination capacity. The most viable pollen grains were foundin R. gallica (section Gallicanae), where average of 5 viability tests is 90.69%, andin R. pendulina (section Rosa) – 86.85%. Species from section Caninae have a lower level of viability (from 60.59% in R. rubiginosa to 31.23% in R. inodora). Pollen of species from sections Gallicanae (R. gallica; to 63.4%) and Rosa (R. pendulina; to 47.21%) germinatedmuch better than the pollen of the majority of species from section Caninae (with the exception of R. zalana; to 47.22%). The examinedpollen grains germinatedmost numerously on agar medium with 1.5% agar+15% sucrose+50 ppm boric acidandliquidmed ium with 15% sucrose+ 50 ppm boric acid. Following deep-freeze storage (–25°C) for six months, the pollen grains of nine selected species (with the exception of R. rubiginosa) showed viability higher or similar to that before storage.
Źródło:
Dendrobiology; 2010, 64
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
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