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acer/carbohydrate
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Growth characteristics of carbohydrate-limited cultures of sycamore (Acer pseudoplatanus L.) cells.
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Effect of sucrose starvation on sycamore (Acer pseudoplatanus) cell carbohydrate and Pi status.
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The mobilization of stored carbohydrates during sucrose starvation was studied with sycamore (Acer pseudoplatanus) cells. When sucrose was omitted from the nutrient medium, the intracellular sucrose pool decreased rapidly during the first hours of the experiment, whereas the starch content remained
Uridine diphosphate-sugar metabolism by sycamore (Acer pseudoplatanus) cambial tissue.
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Extracts of sycamore cambial tissue convert UDP-glucose into UDP-glucuronic acid, and the latter into UDP-xylose and UDP-rhamnose. None of the corresponding galactose series of monosaccharides was formed indicating the absence of epimerases, postulated as an important feature of differentiation.
Spectrochemical analysis of sycamore (Acer pseudoplatanus) leaves for environmental health monitoring.
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Terrestrial plants are ideal sentinels of environmental pollution, due to their sedentary nature, abundance and sensitivity to atmospheric changes. However, reliable and sensitive biomarkers of exposure have hitherto been difficult to characterise. Biospectroscopy offers a novel approach to the
Carbon dynamics of Acer pseudoplatanus seedlings under drought and complete darkness.
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Carbon (C) storage is considered a key component to plant survival under drought and shade, although the combined effects of these factors on survival remain poorly understood. We investigated how drought and shade alter the C dynamics and survival of tree seedlings, and whether drought limits the
Activities of enzymes of carbohydrate metabolism in cells of Acer pseudoplatanus L. maintained in continuous (chemostat) culture.
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Seasonal variation in biomass and carbohydrate partitioning of understory sugar maple (Acer saccharum) and yellow birch (Betula alleghaniensis) seedlings.
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We investigated seasonal patterns of biomass and carbohydrate partitioning in relation to shoot growth phenology in two age classes of sugar maple (Acer saccharum Marsh.) and yellow birch (Betula alleghaniensis Britt.) seedlings growing in the understory of a partially harvested forest. The high
Root carbohydrate reserves, mineral nutrient concentrations and biomass in a healthy and a declining sugar maple (Acer saccharum) stand.
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Soil and root characteristics were contrasted between a "declining" and a "healthy" sugar maple (Acer saccharum Marsh.) stand in Vermont, USA. The declining stand had lower basal area increment and more crown dieback than the healthy stand. Soil pH and base cation content were lower and soil water
Excretion of laccase by sycamore (Acer pseudoplatanus L.) cells. Purification and properties of the enzyme.
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A laccase-type polyphenol oxidase is excreted by sycamore cells (Acer pseudoplatanus L.) cells. The enzyme has been purified by classical purification techniques. It is a blue copper protein of Mr 97 000, containing 45% carbohydrate and 0.24% copper. This protein consists of one single unit and the
Leaf nutrition and photosynthetic performance of sugar maple (Acer saccharum) in stands with contrasting health conditions.
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Leaf nutrition and photosynthetic performance of sugar maple (Acer saccharum Marsh.) were compared between two sugar maple stands in northwestern Vermont with contrasting health conditions as indicated by annual basal area growth, degree of crown dieback, and foliar appearance. Observations made
Antinociceptive, antimicrobial potential and phytochemical screening of different solvent extracted samples from the stem of Acer pentapomicum.
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The present study investigates the antinociceptive, antimicrobial activity and phytochemical assessment of samples from A. pentapomicum. Different microbes were tested using disc diffusion assay at three concentrations (1, 2 and 3 mg/disc). Antinociceptive activity was determined by acetic acid
Golgi-specific localization of transglycosylases engaged in glycoprotein biosynthesis in suspension-cultured cells of sycamore (Acer pseudoplatanus L.).
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Golgi complex and endoplasmic reticulum (ER) were isolated from suspension-cultured cells of sycamore (Acer pseudoplatanus L.) by stepwise sucrose density gradient centrifugation using protoplasts as starting material. The purity of the two organelle fractions isolated was assessed by measuring
Inositol Metabolism in Plants. III. Conversion of Myo-inositol-2-H to Cell Wall Polysaccharides in Sycamore (Acer pseudoplatanus L.) Cell Culture.
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Prolonged growth of cell cultures of sycamore (Acer pseudoplatanus L.) on agar medium containing myo-inositol-2-(3)H resulted in incorporation of label predominately into uronosyl and pentosyl units of cell wall polysaccharides. Procedures normally used to distinguish between pectic substance and
Simulated root dynamics of a 160-year-old sugar maple (Acer saccharum Marsh.) tree with and without ozone exposure using the TREGRO model.
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Because of difficulties in directly assessing root responses of mature forest trees exposed to atmospheric pollutants, we have used the model TREGRO to analyze the effects of a 3- and a 10-year exposure to ozone (O(3)) on root dynamics of a simulated 160-year-old sugar maple (Acer saccharum Marsh.)
Interrelationships between carbohydrate metabolism and nitrogen assimilation in cultured plant cells : III. Effect of the nitrogen source on the pattern of carbohydrate oxidation in cells of Acer pseudoplatanus L. grown in culture.
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In sycamore cells grown on nitrate as opposed to glutamate there is a higher pentose phosphate pathway carbon flux relative to glycolysis in the early stages of cell growth when nitrate assimilation is most active. The high pentose phosphate pathway activity compared with glycolysis in nitrate grown
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