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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.
Seed sculpture, seed coat thickness and soluble carbohydrate profiles were compared in three lupin species, each represented by three different genetic lines, from sections Pilosus (L. pilosus) and Atlanticus (L. atlanticus, L. cosentinii). Seed coat thickness varied most in the three lines of L. pilosus (330-1000 µm), while in the other species it varied little from 400 µm thickness. The studied seeds accumulated approximately 100 mg/g d.m. soluble carbohydrates. The obtained results together with published data suggest that the soluble carbohydrate composition of seeds is clearly section-specific in Lupinus sections Pilosus and Atlanticus. Sect. Pilosus was characterized by a high level of galactosyl cyclitols, while seeds of sect. Atlanticus contained much higher amounts of the raffinose-family oligosaccharides. In all species, however, the dominating soluble carbohydrate was stachyose. The results on the biochemical parameters analyzed in this paper confirm that L. atlanticus and L. cosentinii are more closely related to each other than to L. pilosus. The seed coat roughness/smoothness criterion seems inadequate for building a classification of lupin species, as one of the analyzed lines of L. pilosus, formally ascribed to the rough-seeded lupins, produces smooth seeds.
Germinability and the content of soluble carbohydrates were analysed in cereal seed (winter rye, cv. Warko; spring wheat, cv. Santa; hexaploid winter triticale, cv. Fidelio and cv. Woltario). Seed moisture content (mc) was equilibrated over silica gel to 0.08 g H2O/g dry mass and stored in a desiccator at 20oC for up to 205 weeks or were equilibrated to mc 0.06, 0.08 or 0.10 g H2O/g dm and subjected to artificial aging at 35oC in air-tight laminated aluminium foil packages for 205 weeks. It was shown that the rate of seed aging depended on the species and seed moisture content. The fastest decrease of germinability upon storage was observed in seed with the highest moisture level. Complete germinability loss for winter rye, winter triticale cv. Fidelio, winter triticale cv. Woltario and spring wheat seed with mc 0.10 g H2O/g dm3 occurred after 81, 81, 101 and 133 weeks, respectively. Fructose, glucose, galactose, myo-inositol, sucrose, galactinol, raffinose, stachyose and verbascose were the main soluble carbohydrates found in the seed. The obtained data on the contents of specific sugars and the composition of soluble sugars fraction in seed of rye, wheat and triticale did not corroborate any profound effect of reducing sugars, sucrose and oligosaccharides on seed longevity.
Yellow lupin seeds cv. Juno were stored under laboratory conditions for 2 month, 4, 6 and 8 years. Eighteen soluble carbohydrates were identified in embryonic axes and cotyledons of different age seeds. The concentration of soluble carbohydrates in analysed seeds ranged from 25 to 34% of dry mass. Axes contained more carbohydrates than cotyledons. Stachyose dominated in axes, and verbascose - in cotyledons. Other detected galactosides were: galactinol, galactosyl pinitols and galactosyl chiro-inositols (fagopyritols), but their content was several-fold lower than that of RFOs (in both axes and cotyledons tissues). The concentration of soluble carbohydrates indicated, that sucrose to RFOs mass ratio, or other changes in sugars composition are not indicators of seed storage.
The objective of this paper was to compare the levels of soluble sugars in seeds of yellow lupin cv. Juno matured at different temperatures. The temperature regimes applied were 1). 26 °C for 24 h (high temperature), 2). 24 °C for 12 h and 19 °C for the next 12 h (optimum temperature regime), 3). 26 °C for 16 h and 4 °C for the next 8 h (high-low temperatures). Six soluble carbohydrates (D-galactose, myo-inositol, sucrose, raffinose, stachyose and verbascose) were quantified. Seeds maturing at constant temperature 26 °C accumulated more raffinose (by 100 %) than seeds maturing at optimum temperature regime. Seeds maturing at high temperature accumulated less stachyose and verbascose than those maturing at optimum temperature conditions, the differences being 45 and 24 %, respectively. In seeds maturing at high-low temperature the level of raffinose decreased while the level of stachyose and verbascose increased, compared to those maturing at optimum conditions. The contents of sucrose, D-galactose and myo-inositol in seeds maturing at optimum temperatures was lower than in seeds maturing at both high and high-low temperature regimes. It was shown, that temperature conditions - constant high temperature, or physiologically optimal thermal oscillations (24 °/19°C)or high-low temperature regime - differently affect the contents of six soluble carbohydrates in maturing seeds of yellow lupin.
Pharmaceuticals have become an emerging environmental protection problem due to their presence in water and soil ecosystems. Reliable cell viability biomarkers (mitochondrial and cytosol distribution of cytochrome c oxidase activity), germination, and growth of seedlings were assessed to be sensitive endpoints of diclofenac toxicity. Moreover, the content of soluble carbohydrates in seedlings of three leguminous plants was an additional indicator of germination. The tested diclofenac concentrations (from 0 to 12 mM) in the three plant species (lupin, pea, and lentil) resulted in increased activity of the enzyme in cytosol, and a decreased activity in mitochondrions. The increase of the cytochrome c oxydase activity in cytosol was most rapid in pea and slowest in lupin. The decrease in mitochondrions was gradual, yet in roots growing in the soil contaminated with 12 mM of diclofenac, from 35 to 68% of total enzyme activity leaked from the mitochondrion to the cytoplasm. The dynamics of seedling growth was a better parameter of soil contamination with diclofenac than germination. On the basis of the described morphological and biochemical features, it was found that diclofenac is decidedly less phytotoxic toward leguminous plants (lupin, pea, lentil) than e.g. sulfamethazine. The research has shown that carbohydrate metabolism is a good parameter of seedling growth, but it is not an indicator of contamination and thus cannot be applied to assess soil ecosystem contamination with medicines.
We examined the effects of cooling applied for 4 to 20 weeks on donor cultures of four dwarfing apple rootstocks (P16, P22, P59 and M26). Our aim includes increasing their competence for in vitro adventitious shoot regeneration from the leaves. Donor cultures were maintained on a shoot multiplication medium at 4℃ in the dark for 4 months, followed by subculture on a fresh medium for 4 weeks. The cooling of the cultures caused an increase in the adventitious shoot number and a decrease in the starch content and an increase in the soluble sugar content (monosaccharides, raffinose and stachyose). The accumulation of stachyose in response to cold is a new observation, and it suggests that raffinose and stachyose play important role in the acclimation of dwarf apple rootstocks to low temperatures.
This study aimed determining the contents of soluble protein, free amino acid, phenolic, flavonoid, soluble carbohydrate, sugars (glucose, fructose and sucrose) and elements in selected wild growing and cultivated mushroom species collected from various locations of Turkey. Significant differences (P < 0.05) were found for the contents of total free amino acid, soluble protein, phenolic, flavonoid, soluble carbohydrate and sugars. The total free amino acid, soluble protein, phenolic, flavonoid and soluble carbohydrate contents of mushrooms ranged from 33.57–126.57 mg g–1, 2.77–7.55 mg g–1, 28.68–157.39 mg g–1, 8.55– 30.66 mg g–1 and 59.89–343.55 mg g–1, respectively. Elemental analysis showed that mushrooms contained significant amounts of potassium (1345.07–9310.17 mg kg–1), phosphorus (1462.44–6159.45 mg kg–1), calcium (18.78–349.15 mg kg–1), sulphur (952.41–12486.63 mg kg–1), iron (80.62–606.26 mg kg–1), manganese (22.65–147.57 mg kg–1), zinc (103.26–522.81 mg kg–1) and selenium (0–115.40 mg kg–1). Nutritient composition varied with mushroom species. The means of total soluble protein, total phenolic, total flavonoid, potassium, phosphorus, sulphur, chlorine, sodium, iron, calcium, manganese, selenium, zinc and copper contents in wild growing mushrooms were found higher than cultivated mushrooms.
W pracy oceniono żywotność oraz zawartość węglowodanów rozpuszczalnych w nasionach bobiku, grochu, łubinu i soczewicy przechowywanych przez 22 lata w temperaturze -14°C, 0°C oraz w temperaturze pokojowej (około +20°C). Przechowywanie nasion w temperaturze pokojowej powodowało, że nasiona nie kiełkowały, natomiast przechowywane w temperaturze -14°C i 0°C kiełkowały od 86 do 98% w zależności od gatunku. Nasiona przechowywane w temperaturze +20°C miały niższą, w porównaniu do nasion przechowywanych w temperaturze -14°C, 0°C, zawartość oligosacharydów rodziny rafinozy. Podczas przechowywania węglowodany te ulegały degradacji, a proces ten obejmował przede wszystkim werbaskozę i stachiozę.
Seed vigour, viability, the contents of soluble carbohydrates, total protein, albumins, and globulins, as well as seed coat structure, were analysed in yellow lupin (Lupinus luteus L.) cv. Iryd seeds stored for 20 years at -14oC, 0oC or at room temperature (approx. +20oC). Seed storage at room temperature reduced viability (to 2%) and increased seed leachate electroconductivity. Determinations of total proteins showed that protein content was significantly reduced in seeds stored at +20oC compared to the other storage regimens. Raffinose family oligosaccharides were the main soluble carbohydrates in seeds stored at 0oC and -14oC, whereas sucrose dominated in seeds stored at room temperature. Scanning electron microscopy (SEM) of seed surface and seed coat sections revealed appearance of an amorphic layer on the surface of seeds stored at room temperature (not observed in other seeds) and distinct shrinking of macrosclereid layer in seeds stored at -14oC. Macrosclereids layer in all seeds was 100 um thick and accounted for 60% of seed coat thickness. The obtained results suggest that for long term storage of lupin seeds at 0oC is the most advisable temperature if both costs of storage and seed storability are considered.
In this study, 12 taxa from the Chlorophyta, Phaeophyta and Rhodophyta were collected from different depths at Gemlik-Karacaali and Erdek-Ormanlı. A total of 175 specimens from these divisions were used to determine Total Protein (TP), Total Soluble Carbohydrate (TSCH) and Chlorophyll a (Chl a), Chlorophyll b (Chl b), Chlorophyll c (Chl c), total carotenoid (Car) contents and Chl b/Chl a, Chl c/Chl a, Car/Chl a, Car/Chl b, Car/Chl c ratios. TP, TSCH and pigment contents varied significantly with respect to the algal taxa, stations and depth distribution. In addition, individual differences were important in all of the measured parameters. The maximum TP contents (0.94%–31.03%) were determined in some of the Rhodophyta. In some green seaweeds belonging to the genus Ulva L., the TP content was determined between 2.9%–28.1%. Lower TP contents were determined in Cystoseira barbata (Good) C. Agardh (1.1%–4.3%). In contrast to TP contents, TSCH values were very low; maximum TSCH were determined in Ulva species, as were protein contents. In conclusion, the variations in TP, TSCH and pigment in 12 taxa of macroalgae were analysed according to station, depth, and environment.
The aim of the study was to determine the effect of Reglone Turbo 200 SL (diquat) as a desiccant applied to ‘Sonet’ narrow-leaved lupin on protein, amino acid, soluble carbohydrates and hemicellulose content in seeds. Reglone Turbo 200 SL was used at the dose of 2.0 lˇha-1 on day 35 after lupin flowering. The diverse weather conditions significantly influenced the accumulation of some amino acids (threonine, proline, cysteine, glycine, tyrosine, leucine, histidine and lysine), content of soluble sugars and hemicellulose in the seeds tested. The desiccant applied to plants resulted in drought effect and hence an increase in soluble sugars content, particularly cyclitols (D-pinitol, D-chiro-inositol, myo-inositol). A similar effect was observed for hemicellulose. The desiccant applied did not modify the profile, content of amino acids and protein in the seeds tested.
Activity of soil dehydrogenase (DHA) was measured in the mineral soil in a forest stand of 15 to 16-year-old Scots pine (Pinus sylvestris L.) from geographically diverse populations, as an indicator of biological activity of soil microorganisms, in a provenance experiment in Poland. The pine populations originated from six European countries (Sweden, Russia, Latvia, Poland, Germany, France) and differed widely in aboveground biomass and productivity. Soil DHA during two growing seasons showed pronounced seasonal variability, which was significantly related to the fine root concentration of nonstructural carbohydrates. Higher DHA was found in soil under canopies of the central and southern European populations than in those from more northern parts of the Scots pine range. Significant positive correlation between soil DHA and aboveground tree biomass suggest that these patterns most likely resulted from differences in carbon dynamics and productivity among populations.
Dokonano oceny zmian w zawartości cukrów rozpuszczalnych i ogólnej puli fenoli jakie zachodzą w roślinach przetrzymywanych w ciemności i niskiej temperaturze. Podjęto próbę odpowiedzi na pytanie, czy na podstawie tych parametrów można ocenić potencjalne możliwości Festulolium, trawy pastewnej, mieszańca międzyrodzajowego do przetrwania niekorzystnych warunków zimowych. Badania przeprowadzono na dwóch androgenicznych formach Festulolium oznaczonych numerami roboczymi 715 i 768, uzyskanych z tetraploidalnego mieszańca F₁ Festuca pratensis (2n = 4x = 28) x Lolium multiflorum (2n = 4x = 28). Rośliny po klonowaniu wzrastały przez 4 tygodnie w komorze szklarniowej w temperaturze 18°C. Po przeniesieniu z komory szklarniowej z 18°C rośliny umieszczano w ladzie chłodniczej w ciemności w 2°C. Analizy zmian zawartości związków fenolowych i cukrów rozpuszczalnych w liściach i węzłach krzewienia wykonywano przed umieszczeniem roślin w ladach, a następnie kolejno po 1, 2, 3, 4, 5, 6 tygodniach wzrostu w chłodzie i w ciemności. U bardziej zimotrwałego genotypu 715 istotny wzrost zawartości fenoli obserwowano po 1 tygodniu wzrostu w ciemności i 2°C, podczas gdy u genotypu bardziej wrażliwego na warunki zimowe 768 wzrost ten obserwowano dopiero po 3 tygodniach eksperymentu. Wzrost zawartości cukrów rozpuszczalnych obserwowano początkowo u obu genotypów. Zarówno w liściach, jak i w węzłach najwyższe stężenie cukrów odnotowano po 3 tygodniach, a następnie stopniowy spadek do wartości poniżej kontroli (odnotowanych przed rozpoczęciem eksperymentu). Generalnie, u obu badanych roślin, po 6 tygodniach w chłodzie i w ciemności następowało wyczerpywanie się zapasów węglowodanów w porównaniu do wartości odnotowanych przed wystąpieniem stresu. Porównując przebieg zmian w koncentracji węglowodanów rozpuszczalnych w liściach i węzłach krzewienia Festulolium można sądzić, że związki te były z początku transportowane z węzłów do liści, a następnie sukcesywnie poziom ich w węzłach krzewienia spadał w miarę przedłużających się warunków wzrostu, które nie pozwalały na uzupełnienie cukrów ze względu na zahamowanie fotosyntezy. Genotyp 715 uznany za bardziej zimotrwały charakteryzował się szybszym wzrostem zawartości fenoli u roślin przetrzymywanych w chłodzie i w ciemności niż u mniej zimotrwałego genotypu 768. Genotyp 715 charakteryzował się również większą zawartością węglowodanów rozpuszczalnych, zarówno w liściach, jak i w węzłach krzewienia w porównaniu do roślin genotypu 768. Podsumowując, na podstawie zmian w poziomie związków fenolowych i węglowodanów rozpuszczalnych, w zastosowanych warunkach doświadczalnych, można ocenić potencjalne możliwości roślin do przetrwania warunków zimowych.
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