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picea engelmannii/phosphatase
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14 resultados
Protein phosphatases 1 and 2A and the regulation of calcium uptake and pollen tube development in Picea wilsonii.
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To investigate the roles of protein phosphatases 1 and 2A in the development of pollen tubes of Picea wilsonii Mast., pollen grains were cultured in standard medium in the presence and absence of the protein phosphatase inhibitors okadaic acid and calyculin A. At nanomolar concentrations, these
The allelic distribution at an acid phosphatase locus in Norway spruce (Picea abies) along similar climatic gradients.
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The allele frequency distribution at a polymorphic acid phosphatase locus (APH-B) was determined in natural populations of Norway spruce (Picea abies) from a latitudinal transect in Finland, an altitudinal transect in the Austrian Alps, and from different locations of the Swiss range. The three
Inheritance of acid phosphatase isozymes in Picea abies.
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Inheritance of acid phosphatase isozymes in Picea abies.
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Bisphenol A affects germination and tube growth in Picea meyeri pollen through modulating Ca2+ flux and disturbing actin-dependent vesicular trafficking during cell wall construction.
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Bisphenol A (BPA), a widespread pollutant, is reportedly harmful to humans, animals and plants. However, the effect of BPA on plant pollen tube growth, as well as the mechanism involved, remains unclear. Here, we report that BPA significantly inhibited Picea meyeri pollen germination and tube
Phytochemical and biological studies on rare and endangered plants endemic to China. Part XIV. Structurally diverse terpenoids from the twigs and needles of the endangered plant Picea brachytyla.
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A phytochemical investigation on the MeOH extract of the twigs and needles of the endangered plant Picea brachytyla led to the isolation and characterization of thirty-eight structurally diverse terpenoids. Seven of these molecules are previously undescribed, including three abietane-type
Piceamycin and its N-acetylcysteine adduct is produced by Streptomyces sp. GB 4-2.
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Piceamycin, a new macrolactam polyketide antibiotic, was detected by HPLC-diode array screening in extracts of Streptomyces sp. GB 4-2, which was isolated from the mycorrhizosphere of Norway spruce. The structure of piceamycin was determined by mass spectrometry and NMR experiments. It showed
Soil enzyme inhibition by condensed litter tannins may drive ecosystem structure and processes: the case of Kalmia angustifolia.
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Kalmia angustifolia is an ericaceous shrub that can rapidly spread on recently harvested boreal forest sites, causing a slow-down in soil nutrient cycling and reduced growth of spruce seedlings. It has been hypothesized that tannins released from Kalmia litter suppress soil enzyme activity, and are
THE HEPATOPROTECTOR ROPREN FOR THE TREATMENT OF PATIENTS WITH NONALCOHOLIC STEATOHEPATITIS: A PROSPECTIVE OBSERVATIONAL STUDY.
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OBJECTIVE
New and effective drugs to improve liver function and fibrosis are urgently needed for patients with nonalcoholic steatohepatitis (NASH). This study examines the effectiveness of treatment of patients with NASH with the registered heparoprotector, Ropren~ Methods. This observational study
Effects of brefeldin A on pollen germination and tube growth. Antagonistic effects on endocytosis and secretion.
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We assessed the effects of brefeldin A (BFA) on pollen tube development in Picea meyeri using fluorescent marker FM4-64 as a membrane-inserted endocytic/recycling marker, together with ultrastructural studies and Fourier transform infrared analysis of cell walls. BFA inhibited pollen germination and
Mycorrhizosphere responsiveness to atmospheric ozone and inoculation with Phytophthora citricola in a phytotron experiment with spruce/beech mixed cultures.
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The aim was to analyze functional changes in the mycorrhizosphere (MR) of juvenile spruce and beech grown in a mixture under ambient and twice ambient ozone and inoculated with the root pathogen Phytophthora citricola. The phytotron experiment was performed over two vegetation periods, adding the
Influence of Mining and Vegetation Restoration on Soil Properties in the Eastern Margin of the Qinghai-Tibet Plateau
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Mining causes serious destruction of the surface morphology and soil structure of lands, and vegetation restoration on post-mining lands provides an effective way for soil and water conservation. To determine the influence of mining and vegetation restoration on soil properties in the eastern margin
[Soil humus differentiation and correlation with other soil biochemical properties in pure forests in semi-arid low-hilly area of Inner Mongolia, China].
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Whether the content and composition of soil humus in pure forest change due to its simple component of litter and specificity of single-species dominant community is a key problem for forest sustainable management. In this study, soils from 6 kind of pure forests in semi-arid low-hilly area of Inner
The action of antidiabetic plants of the canadian james bay cree traditional pharmacopeia on key enzymes of hepatic glucose homeostasis.
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We determined the capacity of putative antidiabetic plants used by the Eastern James Bay Cree (Canada) to modulate key enzymes of gluconeogenesis and glycogen synthesis and key regulating kinases. Glucose-6-phosphatase (G6Pase) and glycogen synthase (GS) activities were assessed in cultured
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