sinapis/carbohydrate

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[Short term changes in soluble sugar and cell-wall carbohydrate content during phytochrome mediated photomorphogenesis in the mustard seedling (Sinapis alba L.)].

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Short term changes in the soluble sugar, starch, and cell-wall carbohydrate content of the mustard seedling have been studied in the different organs during phytochrome induced photomorphogenesis in continuous far-red. The program was: imbibition of seeds →36 hrs dark → far-red irradiation. Kinetics

[Changes in soluble sugar and cell-wall carbohydrate content during inhibition of endogenous cell elongation by antimetabolites].

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The effect of actinomycin D, hydroxyproline, cycloheximide, and chloramphenicol on the soluble sugar and cell-wall carbohydrate content was studied in an effort to look for the primary action of these antimetabolites on the cell-wall in connection with cell elongation during inhibition of endogenous

Nectar-carbohydrate production and composition vary in relation to nectary anatomy and location within individual flowers of several species of Brassicaceae.

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Nectar-carbohydrate production and composition were investigated by high-performance liquid chromatography and enzymology in nine species from five tribes of the Brassicaceae. In six species (Arabidopsis thaliana (L.) Heynh., Brassica napus L., B. rapa L., Lobularia maritima (L.) Desv., Raphanus

The plastid-localized pfkB-type carbohydrate kinases FRUCTOKINASE-LIKE 1 and 2 are essential for growth and development of Arabidopsis thaliana.

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BACKGROUND Transcription of plastid-encoded genes requires two different DNA-dependent RNA polymerases, a nuclear-encoded polymerase (NEP) and plastid-encoded polymerase (PEP). Recent studies identified two related pfkB-type carbohydrate kinases, named FRUCTOKINASE-LIKE PROTEIN (FLN1 and FLN2), as

Changes in the carbohydrate content of the leaf and the apical bud of Sinapis during transition to flowering.

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Vegetative plants of Sinapis alba L. were induced to flower by a single long day of 20 h or by a single short day of 8 h starting at an unusual time of the 24-h cycle ("displaced short day"). The soluble sugar and starch contents of the just-expanded leaf and the apical bud were measured at various

Changes in adenine-nucleotide content in the apical bud of Sinapis alba L. during floral transition.

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The total adenylate pool of the apical buds of vegetative plants of Sinapis alba L. continuously grown in short days fluctuates over a 24-h cycle with the minimum occurring at the end of the dark period. In the buds of plants induced to flower by a single long-day treatment, total adenylate pool

Phytochrome Control of the Development of Ascorbate Oxidase Activity in Mustard (Sinapis alba L.) Cotyledons.

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The activity of ascorbate oxidase (AOX) in mustard (Sinapis alba L.) cotyledons was markedly increased by irradiation with continuous far-red light. The involvement of phytochrome in this light-mediated response was demonstrated by red/far-red reversibility experiments. To determine immunochemically

FT-IR and NMR study of seed coat dissected from different colored progenies of Brassica napus-Sinapis alba hybrids.

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BACKGROUND Yellow-seeded Brassica napus is preferred by breeders for economic reasons, and seed coat is the most obvious comparable character between yellow and black rapeseed. RESULTS Owing to an incomplete understanding of chemical components in yellow rapeseed coat, here we optimized a technique

Impact of sunflower (Helianthus annuus L.) extracts upon reserve mobilization and energy metabolism in germinating mustard (Sinapis alba L.) seeds.

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One commonly observed effect of phytotoxic compounds is the inhibition or delay of germination of sensitive seeds. Mustard (Sinapis alba L.) seeds were incubated with aqueous extracts of sunflower (Helianthus annuus L.) leaves. Although sunflower phytotoxins did not influence seed viability,

Physiological Approach to the Use of the Natural Compound Quinate in the Control of Sensitive and Resistant Papaver rhoeas

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Quinate (1,3,4,5-tetrahydroxycyclohexanecarboxylate) is a compound synthesized in plants through a side-branch of the shikimate biosynthesis pathway, which is accumulated after glyphosate and acetolactate synthase inhibiting herbicides (ALS-inhibitors) and has phytotoxic potential. The objective of

Metabolic responses to red/far-red ratio and ontogeny show poor correlation with the growth rate of sunflower stems.

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In sparse canopies, low red to far-red (R/FR) ratios reach only vertically-oriented stems, which respond with faster rates of extension. It is shown here that this signal also promotes stem dry matter accumulation in sunflower (Helianthus annuus) but not in mustard (Sinapis alba L.). Physically

Effect of light on the development of glyoxysomal functions in the cotyledons of mustard (Sinapis alba L.) seedlings.

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The degradation of storage fat in the cotyledons of mustard seedlings is unaffected by phytochrome and photosynthesis (irradiation with continuous red or far-red light from sowing of the seeds) although light imposes a strong constraint on the translocation of organic matter from the cotyledons into

[Cell-wall composition during inhibition of hypocotyl elongation in the mustard seedling (sinapis alba L.) by inhibitors or phytochrome].

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During inhibition of hypocotyl elongation in the mustard seedling by actinomycin D, hydroxyproline, and continuous far-red via phytochrome 730 the synthesis of cell-wall carbohydrates is impaired in the same manner. Independent of the treatment 12 hrs after its beginning at a relative inhibition of

C : N ratio increases in the phloem sap during floral transition of the long-day plants Sinapis alba and Arabidopsis thaliana.

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In plants of Sinapis alba and Arabidopsis thaliana, leaf exudate (phloem sap) was analysed during and after a single long day inducing flowering and in control short days. The amounts of carbohydrates and amino acids were measured to estimate the organic C : N ratio. In both species, the C : N ratio

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