sinapis alba/carbohydrate

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

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 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

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

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

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

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

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

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,

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

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

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

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

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