scholarly journals Flavonoids from the Red Leaf Sheaths of Allium fistulosum ‘Hitachi-benikko’ (Ibaraki’s Specialty Red Welsh Onion Cultivar) and Their Antioxidant Activity

2020 ◽  
Vol 19 (3) ◽  
pp. 237-245
Author(s):  
Takayuki Mizuno ◽  
Risa Nakane ◽  
Takashi Kaidzuka ◽  
Yuko Ishikawa-Takano ◽  
Fumi Tatsuzawa ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Allium Fistulosum ◽  
Welsh Onion ◽  
Onion Cultivar

scholarly journals Thrips (Thysanoptera) associated with onion (Allium cepa L.) and Welsh onion (Allium fistulosum L.)

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Marta Olczyk ◽  
Maria Pobożniak
Keyword(s):  
Allium Cepa ◽  
Growing Season ◽  
Thrips Tabaci ◽  
Allium Fistulosum ◽  
Onion Thrips ◽  
Welsh Onion ◽  
Allium Cepa L ◽  
Onion Cultivar ◽  
The Relationship ◽  
Thrips Population

AbstractWe determined the abundance, species composition, sex ratio and seasonal dynamics of thrips on one cultivar of Welsh onion (Allium fistulosum) and eight cultivars of onion (Allium cepa) in South Poland within three vegetation seasons (2014–2016). Nine species of Thysanoptera were identified on A. cepa and A. fistulosum. Irrespective of the onion cultivar, Thrips tabaci was the dominant species (64.4% of all collected thrips specimens), while Frankliniella intonsa also occurred in high numbers (28.3%). Conversely, Welsh onion was most often inhabited by F. intonsa (62.7%), although T. tabaci was also numerous (28.3%). The predatory Aeolothrips intermedius accounted for 4.5% on A. cepa and 2.9% on A. fistulosum. In the most numerous species, T. tabaci, F. intonsa and A. intermedius populations were formed mainly by females. The cultivar most colonised by thrips was Kroll of A. fistulosum. The tested cultivars of A. cepa demonstrated varying degrees of attractiveness to thrips in the subsequent years. The relationship between populations of T. tabaci, F. intonsa and A. intermedius changed in the subsequent months of the growing season. In June, mainly T. tabaci and F. intonsa occurred on onion plants, while from July, the percentage shares of F. intonsa and the predatory A. intermedius in the thrips population on many onion cultivars increased. The level of attractiveness of A. cepa related to onion thrips, which is reported as a main pest of onion, varies depending on the year and cultivar.

scholarly journals Phytochemical Analysis and In Vitro Effects of Allium fistulosum L. and Allium sativum L. Extracts on Human Normal and Tumor Cell Lines: A Comparative Study

Molecules ◽  
2021 ◽  
Vol 26 (3) ◽  
pp. 574
Author(s):  
Adrian Bogdan Țigu ◽  
Cristian Silviu Moldovan ◽  
Vlad-Alexandru Toma ◽  
Anca Daniela Farcaș ◽  
Augustin Cătălin Moț ◽  
...  
Keyword(s):  
Cell Line ◽  
Allium Sativum ◽  
Allium Fistulosum ◽  
Tumor Cell Lines ◽  
Sensitive Cell ◽  
Sensitive Cell Line ◽  
Welsh Onion ◽  
Normal Cells ◽  
Ic50 Value ◽  
High Concentrations

Allium sativum L. (garlic bulbs) and Allium fistulosum L. (Welsh onion leaves) showed quantitative differences of identified compounds: allicin and alliin (380 µg/mL and 1410 µg/mL in garlic; 20 µg/mL and 145 µg/mL in Welsh onion), and the phenolic compounds (chlorogenic acid, p-coumaric acid, ferulic acid, gentisic acid, 4-hydroxybenzoic acid, kaempferol, isoquercitrin, quercitrin, quercetin, and rutin). The chemical composition determined the inhibitory activity of Allium extracts in a dose-dependent manner, on human normal cells (BJ-IC50 0.8841% garlic/0.2433% Welsh onion and HaCaT-IC50 1.086% garlic/0.6197% Welsh onion) and tumor cells (DLD-1-IC50 5.482%/2.124%; MDA-MB-231-IC50 6.375%/2.464%; MCF-7-IC50 6.131%/3.353%; and SK-MES-1-IC50 4.651%/5.819%). At high concentrations, the cytotoxic activity of each extract, on normal cells, was confirmed by: the 50% of the growth inhibition concentration (IC50) value, the cell death induced by necrosis, and biochemical determination of LDH, catalase, and Caspase-3. The four tumor cell lines treated with high concentrations (10%, 5%, 2.5%, and 1.25%) of garlic extract showed different sensibility, appreciated on the base of IC50 value for the most sensitive cell line (SK-MES-1), and the less sensitive (MDA-MB-231) cell line. The high concentrations of Welsh onion extract (5%, 2.5%, and 1.25%) induced pH changes in the culture medium and SK-MES-1 being the less sensitive cell line.

Effect of γ-irradiation on volatile compounds of dried Welsh onion (Allium fistulosum L.)

2006 ◽  
Vol 75 (2) ◽  
pp. 322-328 ◽  
Author(s):  
Rajendra Gyawali ◽  
Hye-Young Seo ◽  
Hyun-Ju Lee ◽  
Hyun-Pa Song ◽  
Dong-Ho Kim ◽  
...  
Keyword(s):  
Volatile Compounds ◽  
Allium Fistulosum ◽  
Γ Irradiation ◽  
Welsh Onion

Identification and characterization of a glossy mutant in Welsh onion (Allium fistulosum L.)

2017 ◽  
Vol 225 ◽  
pp. 122-127 ◽  
Author(s):  
Liuyi Yang ◽  
Qianchun Liu ◽  
Yongqin Wang ◽  
Lecheng Liu
Keyword(s):  
Allium Fistulosum ◽  
Welsh Onion ◽  
Glossy Mutant ◽  
Identification And Characterization

scholarly journals Studies on Black Leaf Blight of Welsh Onion, Allium fistulosum. I. Conditions of Disease Occurrence and Certain Biological Characteristics of the Causal Fungus.

1998 ◽  
Vol 64 (1) ◽  
pp. 43-49
Author(s):  
Kunihei KISHI ◽  
Toshiko FURUKAWA ◽  
Takao KOBAYASHI ◽  
Toshimasa SHIRAISHI ◽  
Hiroshi SAKAI ◽  
...  
Keyword(s):  
Leaf Blight ◽  
Biological Characteristics ◽  
Allium Fistulosum ◽  
Welsh Onion ◽  
Disease Occurrence ◽  
Causal Fungus
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