Results 201 to 210 of about 185,335 (247)

Antigenotoxic spinasterol from Cucurbita maxima flowers

Mutation Research/Environmental Mutagenesis and Related Subjects, 1996
The antigenotoxic constituent of squash flowers was isolated by solvent partitioning and repeated vacuum liquid chromatography. The micronucleus test, an in vivo method, was used to monitor the antigenotoxicity of the various fractions during the isolation process.
I M, Villaseñor, P, Lemon, A, Palileo, J B, Bremner   +3 more
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Proteins of the sieve-tube exudate of Cucurbita maxima

Planta, 1971
Sieve-tube exudate which appears on cut surfaces of stems of Cucurbita maxima as distinct droplets has been depicted in electron micrographs of longitudinal sections of the phloem. The exudate, which was produced from mature sieve tubes only, contained filaments of P-protein, but no mitochondria or vesicles of endoplasmic reticulum.
W, Eschrich, R F, Evert, W, Heyser
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Metabolic networks of Cucurbita maxima phloem

Phytochemistry, 2003
Metabolomic analysis aims at a comprehensive characterization of biological samples. Yet, biologically meaningful interpretations are often limited by the poor spatial and temporal resolution of the acquired data sets. One way to remedy this is to limit the complexity of the cell types being studied. Cucurbita maxima Duch.
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Impact of processing on the production of a carotenoid-rich Cucurbita maxima cv. Hokkaido pumpkin juice.

Food Chemistry, 2022
Pumpkin juice with high carotenoid content can be attractive natural alternative for artificial food colourants. We evaluated the impact of processing treatments on aqueous carotenoid extraction from pumpkins, aiming to enhance carotenoid transfer into ...
Sharmaine Atencio, S. Verkempinck, T. Bernaerts, K. Reineke, M. Hendrickx, A. V. Van Loey   +5 more
semanticscholar   +1 more source

Ascorbate oxidase from Cucurbita maxima

Phytochemistry, 1981
Abstract Ascorbate oxidase is present in homogenates of the flesh of Cucurbita maxima fruits.
Luiz Bezerra Carvalho, Carlos José Lima, Petrus Haluli Medeiros   +2 more
openaire   +1 more source

Synthesis of P-protein in mature phloem of Cucurbita maxima

Planta, 1976
Cotyledons of Cucurbita maxima Duch. seedlings were provided with (14)C-labeled amino acids for 12 h. Besides the bulk of labeled amino acids the sieve-tube exudate also carried labeled proteins. 80% of the incorporated radioactivity was found in the P-protein, 20% in a neutral protein, and traces were found in acidic proteins after fractionation on ...
J, Nuske, W, Eschrich
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Filament formation in vitro of a sieve tube protein from Cucurbita maxima and Cucurbita pepo

Planta, 1975
Phloem proteins of the sieve tube exudate from Cucurbita maxima Duch. and Cucurbita pepo L. were investigated as to their filament forming ability in vitro. From the two main proteins (116000 dalton, 30000 dalton) only the 116000 dalton protein was found to form reversibly distinct filaments of 6-7 nm diameter upon removal of SH-protecting agents from ...
H, Kleinig, J, Thönes, I, Dörr, R, Kollmann   +3 more
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Cucurbitacin 19-hydroxylase in Cucurbita maxima

Phytochemistry, 1978
Abstract The enzymatic hydroxylation of the C-19-methyl group of cucurbitacin B and D was observed in partly purified preparations obtained from the unripe fruit of Cucurbita maxima . Assay methods were developed and the pH optimum, cofactor requirements, and substrate specificity determined.
openaire   +1 more source

Resistance in Cucurbita pepo and Cucurbita maxima germplasms to cucumber mosaic virus

Genetic Resources and Crop Evolution, 1996
A total of 384 Cucurbita pepo and Cucurbita maxima accessions were evaluated in growth chambers or glasshouse tests for resistance to cucumber mosaic virus (CMV). Seedlings were mechanically inoculated at the cotyledon stage, and scored for symptoms on cotyledons and true leaves 7 and 18 days after inoculation.
A. Lebeda, E. Křístková
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KARAKTERISTIKE BUČA Cucurbita maxima

2015
U ovom istraživanju su korišteni uzorci dviju buča Cucurbita maxima (Hokkaido i Kabocha) čiji ekstrakti su pripremani u dvije akademske godine: 2014/2015. i 2013/2014. Prošlogodišnji uzorci bili su podvrgnuti ekstrakciji uz refluksiranje i ekstrakciji u ultrazvučnoj kupelji. Fenolni spojevi svih uzoraka buča određeni su pomoću Folin-Ciocalteu metode, a
openaire   +2 more sources