Tazetta Var Research Articles

Analysis of the Essential Oil of Japanese Narcissus (Narcissus Tazetta Var. Chinansis M. Roem)

日本水仙 (Narcissus tazetta var.chinensis M. Roem) の花から得た精油の成分を検索し,主成分としてリナロールと酢酸べンジルを確認し,ほかにペンズァルデヒド,ノニルアルデヒド,ヘプチルアルコール,α-テルピネオール,ペンジルアルコール,フェニルエチルアルコール,フェニルプロピルアルコール,シネオール,酢酸フェニルエチル,酢酸フェニルプロピル,インドールを確認し,さらに未確認炭化水素,4種類の芳香族エステルの存在を認めた。

Cytological studies in Narcissus. I. : Karyotypes of some varieties and cultivated forms of N. Tazetta L.

This paper deals with the karyotypes of 3 varieties and 4 cultivated forms of Narcissus Tazetta L. l. The names and the karyotypes of those materials are as follows : Narcissus Tazetta var. papyraceus 2. The somatic chromosome complement of the variety papyraceus or Peal is divided into 2 haploid sets which are quite similar to each other, and that of the varieties suisele, plena or Grand Soleil d'Or into 3 quite similar sets if the number of satellite is left out of consideration. 3. Comparing morphologically the ll chromosomes in the haploid set of the variety papyraceus orWhi te Pearl with the 10 chromosomes in one set of the varieties suisen, plena or Grand Soleil d'Or, we can scarcely recognize a concise connection.between both the chromosome complements. It is, therefore, preferable to allaw lOand 11 as the basic chromosome numbers of N. Tazetta, 4. The chromosome complement of Sicily White (?) c6nsists of one chromosome set of 11-basic plant and one set of 10-basic plant, and that of Luna two sets of 11-basic plant and one set of 10-basic plant.

Contact Dermatitis

A fetuin-binding peptide with a molecular mass of about 9 kDa (designated NTP) was isolated and purified from the bulbs of Chinese daffodil, Narcissus tazetta var. chinensis L., by gel filtration and high-performance liquid chromatography, after removing the mannose-binding proteins by mannose–agarose column. Molecular cloning revealed that NTP contained an open reading frame of 354 bp encoding a polypeptide of 118 amino acids which included a 26-amino-acid signal peptide. An analysis of the deduced amino acid sequence of NTP shows considerable sequence homology to the non-specific lipid transfer proteins (nsLTPs) of certain plants. Model of the three-dimensional (3D) structure of NTP exhibits an internal hydrophobic cavity which can bind lipid-like molecules and transfer a wide range of ligands. As a member of the putative non-specific lipid transfer protein of N. tazetta, NTP did not possess hemagglutinating activity toward rabbit erythrocytes. In a cell-free system, it could arrest the protein synthesis of rabbit reticulocytes. Using the in vitro antiviral assays, NTP could significantly inhibit the plaque formation by respiratory syncytial virus (RSV) and the cytopathic effect induced by influenza A (H1N1) virus, as well as the proliferation of human acute promyelocytic leukemia cells (HL-60).