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  • 1
    Electronic Resource
    Electronic Resource
    Causes of soil acidification: a summary (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Soil use and management 1 (1985), S. 0 
    Details
    ISSN: 1475-2743
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract. A review of recent data shows that (i) dissolved CO2 has its greatest acidifying effect in soils with pH values above about 6.5, (ii) fertilizers containing NH−1+ ions or urea will acidify soil whether the ions are taken up directly by plants or are first nitrified, (iii) oxidation of nitrogen and sulphur in soil organic matter causes acidification especially after deforestation, and (iv) the acidifying effect of rainfall and dry deposition is due to sulphuric and nitric acids, SO2 and NH−1+ ions. A table is given showing the order of magnitude of each source of acidification.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1475-2743.1985.tb00651.x
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  • 2
    Electronic Resource
    Electronic Resource
    Soil Use and Management (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Soil use and management 1 (1985), S. 0 
    Details
    ISSN: 1475-2743
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1475-2743.1985.tb00639.x
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  • 3
    Electronic Resource
    Electronic Resource
    EDITORIAL (1986)
    Oxford, UK : Blackwell Publishing Ltd
    Soil use and management 2 (1986), S. 0 
    Details
    ISSN: 1475-2743
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1475-2743.1986.tb00685.x
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  • 4
    Electronic Resource
    Electronic Resource
    Acclimatization of K+ uptake to changes in root temperature: experiments with oilseed rape and barley in flowing solution culture (1987)
    Oxford, UK : Blackwell Publishing Ltd
    Plant, cell & environment 10 (1987), S. 0 
    Details
    ISSN: 1365-3040
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Abstract Changes in the net uptake rate of K+ and in the average tissue concentration of K+ were measured over 14 d in response to changes in root temperature with oilseed rape (Brassica napus L. cv. Bien venu) and barley (Hordeum vulgare L. cv. Atem). Plants were grown in flowing nutrient solutions containing 2.5 mmol m−3 K+ and were acclimatized over 49 d (rape) or 28 d (barley) to low root temperature (5°C) prior to steady–state treatments at root temperatures between 3 °C and 25 °C, with common air temperature. Uptake of K+ was monitored continuously over 14 d and nitrogen was supplied as NH4++ NO−3 or NH+4 or NO−3. Unit absorption rates of K+ increased with time and with root temperature up to Day 4 or 5 following the change in root temperature. Thereafter they usually approached steady-state, with Q10≃ 2.0 between 7 °C and 17°C, although rates became similar between 7 °C and 13°C. Uptake of K+ by rape plants was invariably greater under NO−3 nutrition compared with NH+4. The percentage K+ in the plant dry matter increased with temperature from 2% at 3 °C to 4% at 25 °C in rape, but there was less effect of temperature on the average concentrations of K+ in the plant fresh weight or plant water content. Concentrations of K+ in the leaf water fraction of rape plants decreased with increasing root temperature, but in barley they increased with increasing root temperature. Concentrations of K+ in the root water fraction were relatively stable with respect to root temperature. The results are discussed in terms of compensatory changes in K+ uptake following a change in root temperature and the relationships between growth, shoot: root ratio and K+ composition of the plant.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3040.1987.tb01852.x
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  • 5
    Electronic Resource
    Electronic Resource
    THE FATE OF AFLATOXINS IN THE PREPARATION OF PROTEIN CONCENTRATES AND ISOLATES FROM CONTAMINATED PEANUT AND COTTONSEED FLOURS (1976)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 41 (1976), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: With the assistance of the laboratories of six major soybean protein producers, simulated commercial protein concentrate and isolate processes were applied to aflatoxin-contaminated peanut and cottonseed flours to determine the fate of the aflatoxins. Processes for producing, concentrate by washing the flour at the protein isoelectric point (pH 4.5) were ineffective in separating the aflatoxin from the products, but a process using an aqueous alcohol wash accomplished a 90% reduction in the aflatoxin level of the concentrate compared to the flour. Processes for producing isolate by protein dissolution in alkali and its recovery by precipitation at the isoelectric point resulted in some aflatoxin loss but an increase in the aflatoxin concentration associated with the protein isolate compared to the original flour. However, a process applying carbon adsorbent to the alkaline solution accomplished a 90% reduction in the aflatoxin level of the isolate.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1976.tb14435.x
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  • 6
    Electronic Resource
    Electronic Resource
    Changes in NO3− and K+ uptake by four species in flowing solution culture in response to increased irradiance (1988)
    Oxford, UK : Blackwell Publishing Ltd
    Physiologia plantarum 74 (1988), S. 0 
    Details
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Net rates of NO3− and K+ uptake were compared for oilseed rape (Brassica napus L. cv. Jet neuf), perennial ryegrass (Lolium perenne L. cv. S23), Italian ryegrass (Lolium multiflorum Lam. cv. Augusta) and wheat (Triticum aestivum L. cv. Fen-man) in flowing solution culture during a 4-day sequence of low-low-high-high natural irradiance. Concentrations of NO3− (10 μM) and K+ (2.5 μM) in solutions were maintained automatically and hourly variation in net uptake of these ions was measured. During the 2 days of low irradiance (〈1 MJ m−2 day−1) the uptake rates of both ions by all species were low at 〈1 mmol NO3−, m−2 h−1 and 〈0.4 mmol K+ m−2 h−1. Uptake increased in each species during the first day of high irradiance (7.90 MJ m−2 day−1) to 〉4 mmol NO3− m−2 h−1 and 〉1.4 mmol K+ m−1 h−1. These higher rates were maintained throughout the following night. The lag-time between maximum irradiance and the onset of the highest acceleration in uptake was greater for NO3− (5–8 h) than for K+ (≤1 h) in rape, wheat and Italian ryegrass. Uptake of NO3−, by perennial ryegrass showed an almost constant acceleration for 18 h following maximum irradiance. In all species the measured maximum inflows (uptake rate per unit root length) of both ions were greater than theoretical maximum potential inflows to a non-competing infinite-sink root in soil, by factors of 7 and 36, respectively, for NO3− and K+, averaged over all species.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1399-3054.1988.tb00628.x
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  • 7
    Electronic Resource
    Electronic Resource
    Direct evidence for pH-dependent Fc receptors on proximal enterocytes of suckling rat gut (1979)
    Springer
    Cellular and molecular life sciences 35 (1979), S. 838-840 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary By means of an erythrocyte-antibody rosette technique, Fc receptors, functional at pH 6.0 but not at 7.2, were shown to be present on enterocytes isolated from duodenum and jejunum (but absent from ileum) of 12–20-day-old suckling rats.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01968284
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  • 8
    Electronic Resource
    Electronic Resource
    Effect of dexamethasone on Fc γ receptor expression in foetal and neonatal rat gut (1988)
    Springer
    Cellular and molecular life sciences 44 (1988), S. 242-245 
    Details
    ISSN: 1420-9071
    Keywords: Fc γ receptor ; rat gut ; dexamethasone ; IgG binding ; enterocyte
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary When injected into 12-day-old suckling rats, dexamethasone caused a precocious disappearance of Fc γ receptors from enterocytes of the proximal small intestine. However, dexamethasone appeared to be necessary for the maintenance or production of such receptors in foetal rat gut cultured in vitro.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01941722
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  • 9
    Electronic Resource
    Electronic Resource
    Lens regeneration from cornea in tail ectopic eyes of Xenopus laevis tadpoles (1977)
    Springer
    Cellular and molecular life sciences 33 (1977), S. 1210-1211 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Evidence was found that cornea in tail ectopic eyes of Xenopus tadpoles has the capacity to regenerate a new lens.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01922334
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  • 10
    Electronic Resource
    Electronic Resource
    Evidence for Fc receptors on rabbit yolk sac endoderm (1977)
    [s.l.] : Nature Publishing Group
    Nature 268 (1977), S. 443-445 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] To obtain yolk sac endodermal cells, conceptuses at 24-26 d of gestation were removed intact from pregnant Dutch or New Zealand White rabbits and washed free of contaminating blood with Hanks Balanced Salt Solution (BSS), pH7.5. This was used free of calcium and magnesium to aid cell separation in ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/268443a0
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