Search results for "brassica"

Phytochemical Constituents, Antioxidant Activity, and Toxicity Assessment of the Aerial Part Extracts from the Infraspecific Taxa of Matthiola frutic…

2021

In a project designed to investigate the specific and infraspecific taxa of Matthiola endemic to Sicily (Italy) as new potential sources of bioactive compounds in this work, the infraspecific taxa of Matthiola fruticulosa were studied, namely, subsp. fruticulosa and subsp. coronopifolia. HPLC–PDA/ESI–MS and SPME–GC/MS analyses of hydroalcoholic extracts obtained from the aerial parts of the two subspecies led to the detection of 51 phenolics and 61 volatile components, highlighting a quite different qualitative–quantitative profile. The antioxidant properties of the extracts were explored through in vitro methods: 1,1-diphenyl-2-picrylhydrazyl (DPPH), reducing power and Fe2+ chelating activ…

Quantitative Data on Petunia Embryogenesis: Mitotic Activity and Characteristics of the Cell Cycles

1988

The studies on the embryonal development of Angiosperms are essentially descriptive and some quantitative data are only available at the present time. Within Dicotyledons, one must mentioned the works of Rietsema and al. (1955) on the growth of ovules and embryos of Datura stramonium, the interesting comparison between the growth of Capsella and Gossypium embryos effected by Pollock and Jensen (1964), the studies of Simoncioli (1974) and Tykarska (1980) on two Brassicaceae, respectively Diplotaxis erucoides and Brassica napus, and the work of Gray and al. (1984) on the embryo development of Daucus carota.

Diversity of Draba L. sect. Aizopsis DC. (Brassicaceae) in Sicily

2008

The Sicilian wild cabbages as biological resources: taxonomic update and a review on chemical constituents and biological activities

2020

Considering the growing interest that wild brassicas have as sources of bioactive molecules as well as a genetic resource, the authors review and update the taxonomy of Brassica sect. Brassica, limited to the native flora of Sicily, an island considered to be an active diversification center for the group of species of the aforementioned section. Regarding the taxonomic aspects, Brassica tardarae is here considered a subspecies of B. rupestris; the distinction at the subspe- cific level of B. raimondoi, a critical taxon included in B. incana, is also confirmed. In addition, two new subspecies are proposed, respectively in B. incana and B. rupestris. The taxonomic information relating to the…

Intraspecific Variation of Host Plant and Locality Influence the Lepidopteran-Parasitoid System of <I>Brassica oleracea</I> Crops

2013

ABSTRACT The aim of the study was to investigate the attractiveness to herbivores and parasitoids of two cultivars of Brassica oleracea L., namely, B. oleracea variety acephala (kale) and B. oleracea variety capitata (cabbage), that exhibit differences of morphological and biochemical traits. To this end, field samplings were replicated at seven localities in Galicia (northwestern Spain). Three specialist and three generalist lepidopteran species were sampled. In total, 7,050 parasitoids were obtained, belonging to 18 genera and 22 species. The results showed that 1) parasitism rate and parasitoid species richness changed with locality and was higher in cabbage, although this crop had lower…

Anaerobically digested poultry slaughterhouse wastes as fertiliser in agriculture

2001

Chemical and physical analysis, 27-d plant growth assays with carrot (Daucus carota) and Chinese cabbage (Brassica campestris var. chinensis), and 5-d phytotoxicity assays with Chinese cabbage and perennial ryegrass (Lolium perenne) were used to investigate the suitability of anaerobically digested poultry slaughterhouse waste for fertiliser in agriculture and the effect of aerobic post-treatment on the properties of the digested material. The digested material appeared to be rich in nitrogen. In 27-d assays with digested material as nitrogen source, carrots grew almost as well as those fertilised with a commercial mineral fertiliser used as reference, whereas, the growth of Chinese cabbage…

Effect of Hot Air Treatment on Quality and Shelf Life of Minimally Processed Cauliflower.

2012

Cauliflower, as other cabbages, has a high nutritional value due to its content of vitamins, antioxidants and anti-carcinogenic compounds. Cauliflower inflorescences are harvested when they are still totally immature. The request of minimally processed vegetable is continuously increasing, and there is a growing interest for new fresh cut products. Cauliflower is suitable to be used as a minimally processed vegetable, but harvesting and the following processing can cause a severe stress determining the appearance of accelerated senescence symptoms. The effect of hot air treatment on minimally processed cauliflower was investigated. Florets were put in PE sealed bags before treating at 48°C …

Molecular Characterization of the Multigene Family Encoding the Different Glutamine Synthetase Isoforms in the Amphidiploid CROP Brassica Napus

1998

The fusion of the A genome of Brassica campestris (AA/n=10) and the C genome type of Brassica oleracea (CC/n=9) has led to the origin of the amphidiploid crucifer Brassica napus (AACC/n=19) [1], one of the most important oil crop in modern farming. The production of high quality industrial lubricants, edible oils and fatty acids or the supply of high protein press-residues for animal mast are only some utilizations of oilseed rape. Furthermore, rape oil can also be used for the manufacture of alternative fuels like ‘Bio-Dieser’.

Molecular characterization can quantify and partition variation among genebank holdings: a case study with phenotypically similar accessions of Brass…

1997

To better characterize and conserve crop genetic resources, the assessment of genetic identity, relatedness, and structure among entries and collections becomes a priority. In the present study, a random amplified polymorphic DNA (RAPD) assay was applied as a quick, cost-effective, and preliminary screen to quantify and partition the molecular variation among accessions. Fourteen phenotypically uniform accessions of Brassica oleracea var. capitata L. (cabbage) similarly designated as `Golden Acre' were tested with nine decamer oligonucleotide primers. These amplifications generated 110 fragments, of which 80 were polymorphic ranging in size from 370 to 1720 bp. The 80 polymorphic fragments …

Genetic variations in the endangered Sicilian endemic Brassica rupestris: proposals for a conservation strategy

2012

Brassica rupestris Raf. is a chasmophyte species that includes two subspecies, both endemic to Central-Western Sicily (Italy). Inter-Simple Sequence Repeat (ISSR) markers were used to detect genetic diversity within and among eight populations representative of the species' distribution range. High levels of genetic diversity were revealed both at the population (PPB = 53.88%, HS = 0.212, Sh = 0.309) and at the species level (PPB = 96.55%, HT = 0.307, Sh = 0.464). The correlation between genetic and geographical distances was negative (Mantel test, r = -0.06, P < 0.95). The two subspecies of B. rupestris, subsp. rupestris and subsp. hispida, showed remarkable genetic similarity and molec…