daucus/nicotine

Protoplasts of a kanamycin-resistant (KR, nuclear genome), streptomycin-resistant (SR, chloroplast genome) and chlorophyll-deficient (A1, nuclear genome) Nicotiana tabacum (KR-SA) cell suspension cultures or X-ray-irradiated mesophyll protoplasts of kanamycin- and streptomycin-resistant green plants

Transfer of methotrexate and 5-methyltryptophan resistance from carrot (Daucus carota) to tobacco (Nicotiana tabacum) was achieved by fusion between leaf mesophyll protoplasts of tobacco and irradiated cell culture protoplasts of carrot. Some of the regenerated somatic hybrids exhibited normal

Chloroplast and mitochondrial DNAs have been examined by comparison of restriction enzyme patterns in asymmetric hybrid plants, resulting from the fusion between leaf mesophyll protoplasts of Nicotiana tabacum (Solanaceae), and irradiated cell culture protoplasts of Daucus carota (Umbellifereae).

Suspension cultures of carrot (Daucus carota, line C1), tobacco (Nicotiana tabacum, line TX1), and Nicotiana plumbaginifolia (line NP) were frozen under controlled conditions with trehalose as the sole cryoprotectant. Maximal post-thaw viability (71-74%), measured by phenosafranin dye exclusion, was

Phenylalanine ammonia lyase (PAL) activity was measured in p-fluorophenylalanine (PFP)-sensitive and -resistant tobacco (Nicotiana tabacum L.) and carrot (Daucus carota L.) cell lines which are known to oversynthesize phenylalanine. A correlation between phenolic levels and PAL activities was

The growth of suspension-cultured carrot (Daucus carota L.) and tobacco (Nicotiana tabacum L. cv. Xanthi) cells was inhibited by glyphosate (N-[phosphonomethyl]glycine). This inhibition was reversed by adding combinations of phenylalanine, tyrosine, and tryptophan or casein hydrolysate. Casein

The function of Rirol genes in TL-DNA of the Ri plasmid of Agrobacterium rhizogenes has been previously studied in Nicotiana tabacum and Daucus carota, but it was reported that these plants have a TL-DNA-similar sequence in their genome. We investigated the function of Rirol genes in N. debneyi by

Five clones were isolated from five different amino acid analog-resistant Daucus carota L. var. Sativa and Nicotiana tabacum L. cv. Xanthi cell lines. The individual clones were similar in their resistance to dl-5-methyltryptophan, S-(2-aminoethyl)-l-cysteine, or azetidine-2-carboxylic acid, and in

This study describes the isolation and characterization of p-fluorophenylalanine-resistant diploid tobacco (Nicotiana tabacum L.) and diploid carrot (Daucus carota L.) cultured cell lines. The p-fluorophenylalanine-resistant tobacco and carrot lines can grow in medium containing

A novel protein elicitor (PaNie(234)) from Pythium aphanidermatum (Edson) Fitzp. was purified, microsequenced, and the corresponding cDNA was cloned. The deduced amino acid sequence contains a putative eukaryotic secretion signal with a proteinase cleavage site. The heterologously expressed elicitor

Carotenoids, chlorophylls and gibberellins are derived from the common precursor geranylgeranyl diphosphate (GGPP). One of the enzymes in carotenoid biosynthesis is lycopene β-cyclase (LCYB) that catalyzes the conversion of lycopene into β-carotene. In carrot, Dclcyb1 is essential for carotenoid

Prior preparation of N(5),N(10)-methylenetetrahydrofolate from dl-tetrahydrofolate and [(14)C]formaldehyde resulted in an improved assay for thymidylate synthase. Although preparations from tobacco seedlings and cotton root tips (0.25 centimeter) were inconsistent with respect to enzyme activity,

Daucus carota is a biennale crop that develops an edible storage root. Orange carrots, the most consumed cultivar worldwide, accumulate high levels of β-carotene and α-carotene in the storage root during secondary growth. Genes involved in β-carotene synthesis have been identified in carrots and

The nucleotide sequence of mitochondrial ribosomal protein rps13 gene from wild perennial grass Elymus sibiricus is presented. It was determined by the method of PCR amplification with specific oligonucleotide primers and the direct sequencing of the amplification product. The sequence of E.