Search Results: 1 - 10 of 100 matches for " "
All listed articles are free for downloading (OA Articles)
Page 1 /100
Display every page Item
Italian Wild Rocket [Diplotaxis Tenuifolia (L.) DC.]: Influence of Agricultural Practices on Antioxidant Molecules and on Cytotoxicity and Antiproliferative Effects  [PDF]
Alessandra Durazzo,Elena Azzini,Maria Claudia Lazzè,Anna Raguzzini,Roberto Pizzala,Giuseppe Maiani
Agriculture , 2013, DOI: 10.3390/agriculture3020285
Abstract: Wild rocket [ Diplotaxis tenuifolia (L.) DC.] belongs to the Brassicaceae family and has its origin in the Mediterranean region. The effect of conventional and integrated cultivation practices on the nutritional properties and benefits of wild rocket [ Diplotaxis tenuifolia (L.) DC.] were studied. Bioactive molecules content (vitamin C, quercetin, lutein), antioxidant properties and bioactivity of polyphenolic extracts from the edible part of rocket in Caco-2 cells were determined. Regarding antioxidant properties, FRAP (Ferric Reducing Antioxidant Power) values ranged from 4.44 ± 0.11 mmol/kg fw to 9.92 ± 0.46 mmol/kg fw for conventional rocket and from 4.13 ± 0.17 fw mmol/kg to 11.02 ± 0.45 mmol/kg fw for integrated rocket. The characteristics of wild rocket as a dietary source of antioxidants have been pointed out. Significant differences in the quality of conventional and integrated rocket have been shown, while no influence of agronomic practice on biological activity was reported. A significant accumulation of cells in G1 phase and a consequent reduction in the S and G2 + M phases were observed in Caco-2 cells treated with rocket polyphenol extract.
Use of multivariate analysis in mineral accumulation of rocket (Eruca sativa) accessions  [PDF]
Bozokalfa Kadri M.,E?iyok Dursun,Ya?mur Bülent
Genetika , 2011, DOI: 10.2298/gensr1103437b
Abstract: The leafy vegetables contain high amount of mineral elements and health promoting compound. To solve nutritional problems in diet and reduced malnutrition among human population selection of specific cultivar among species would be help increasing elemental delivery in the human diet. While rocket plant observes several nutritional compounds no significant efforts have been made for genetic diversity for mineral composition of rocket plant accessions using multivariate analyses technique. The objective of this work was to evaluate variability for mineral accumulation of rocket accessions revealed by multivariate analysis to use further breeding program for achieve improving cultivar in targeting high nutrient concentration. A total twelve mineral element and twenty-three E. sativa accessions were investigated and considerable variation were observed in the most of concentration the principal component analysis explained that 77.67% of total variation accounted for four PC axis. Rocket accessions were classifies into three groups and present outcomes of experiments revealed that the first three principal components were highly valid to classify the examined accessions and separating mineral accumulations. Significant differences exhibited in mineral concentration among examined rocket accessions and the result could allow selecting those genotypes with higher elements.
Some Perspectives on Rocket as a Vegetable Crop: A Review
Matthew K. D. Hall, Jenny J. Jobling, Gordon S. Rogers
Vegetable Crops Research Bulletin , 2012, DOI: 10.2478/v10032-012-0002-5
Abstract: Baby leaf rocket is consumed worldwide as a salad vegetable. It is usually mixed with other baby leaf crops, such as spinach and lettuce, to form a mesclun-type salad. Rocket crops have become popular due to their distinct taste and textural appearance in mixed salads. There are two common forms of rocket that are commercially cultivated, a perennial species (Diplotaxis tenuifolia (L.) DC.) known as perennial wall rocket and an annual species (Eruca sativa Mill.) known as annual garden rocket. The popularity of baby leaf crops has increased in recent years due to consumer demand for a convenient, nutritious and easily accessible product. The baby leaf salad sector is now a significant part of the leafy vegetable market, with growth in this sector estimated to continue. The leaves of cultivars of perennial wall rocket and annual garden rocket have been bred to look similar, allowing for a year-round supply of produce. Despite this, there are many differences between the species that affect their responses to abiotic factors during growth and storage. This paper aims to provide some perspectives on the historical importance, botanical classification and cultivation techniques of these economically important plants.
Envelhecimento acelerado em sementes de rúcula (Eruca sativa L.)
Ramos, Nilza Patrícia;Flor, Ebert Pepe Obando;Mendon?a, Elisabeth Aparecida Furtado de;Minami, Keigo;
Revista Brasileira de Sementes , 2004, DOI: 10.1590/S0101-31222004000100015
Abstract: the objective of the present study was to investigate the methodology of the accelerated aging test to evaluate the physiological quality of salad rocket (eruca sativa l.) seeds, cv. cultivada. five lots of salad rocket seeds were tested for germination, seedling emergence, speed germination and emergence rates and accelerated aging (periods of 48, 72 and 96 hours, at 41 and 45oc, with or without the use of saturated solution of nacl). accelerated aging (with and without salt) ranked different vigor levels among seeds lots, and among the protocols studied, the period of 48h at 41oc, with the use of water or the saturated solution of nacl, was considered appropriate to assess the physiological quality of salad rocket seeds, cv. cultivada.
Vigor de sementes de rúcula (Eruca sativa L.) pelo este de deteriora??o controlada
Goulart, Liziane Silva;Tillmann, Maria Angela André;
Revista Brasileira de Sementes , 2007, DOI: 10.1590/S0101-31222007000200024
Abstract: the objective of the present study was to investigate the procedure for the conducting the controlled deterioration test to evaluate the physiological quality of salad rocket (eruca sativa l.) seeds, cv. cultivada. two lots of salad rocket seeds were tested for germination, first germination count, seedling length, accelerated aging with and without the use of saturated nacl solution, field emergence and controlled deterioration. two temperatures (41 and 45oc) and two moisture contents (20 and 24%) were tested to obtain the best relationship between temperature and moisture content for use in the controlled deterioration test for salad rocket. the controlled deterioration test conducted at 41oc, for 20 and 24% and 24h was efficient in evaluating the physiological quality of salad rocket seeds, cv. cultivada.
Application of inter simple sequence repeat (ISSR marker) to detect genotoxic effect of heavy metals on Eruca sativa (L.)
F Al-Qurainy
African Journal of Biotechnology , 2010,
Abstract: As an influence of the Mediterranean diet, Eruca sativa (rocket salad) is eaten all over the world in salads and soups. It belongs to plant order Capparales (glucosinolate-containing species) and it is from the family Brassicaceae. Predominantly, the leaves of this species is eaten raw or cooked, although flowers are also consumed. Assessment of environmental contamination on ecology (plant) at molecular and population levels is important in risk quantification and remediation study. Heavy metal toxicity in plants is to induce oxidative stress linked to oxidation of proteins and membrane lipids but also to alterations of DNA damage response. E. sativa has been investigated in our study which is of agronomical importance and widely used in European countries. We studied three heavy metals Zn, Pb and Cd which showed a dose-dependent effect on radicle and coleoptile lengths of E. sativa. The radicle length was more affected than the coleoptiles length under all concentration tested plant. The ranking of genotoxic potencies in all three heavy metals was in the descending order: Cd2+ > Pb2+ Zn2+. Among these heavy metals, high concentration of Cd (150 mg/l) and Pb (150 mg/l) generated mutations along with changed morphology of seedlings. The radicle and coleoptile lengths (cm) under high concentration of Cd were decreased as compared to low, medium and high concentrations treated seedlings with Pb and Zn. 20 ISSR primers were used, of which four did not amplify, three gave single band and the rest of thirteen primers generated upto six bands (an average of 4 bands per primer). Sixteen primers exhibiting amplified products gave monomorphic; only two primers (OPC-5 and OPC-7) gave unique extra band in seedlings treated with medium and high concentrations of heavy metals Cd and Pb, respectively. The dendrogram was constructed to evaluate the genetic distance generated among the seedling treated with various heavy metals at various concentrations. The similarity matrix values were found from 42.8 to 100% and these values showed the genetic divergence among the seedlings treated with various concentrations of heavy metals.
Producción de frutos y semillas en Diplotaxis erucoides (L.) DC. sometida a diferentes tratamientos de polinización  [cached]
Sans, F.,Bonet, A.
Collectanea Botanica , 1993,
Abstract: The breeding system of Diplotaxis erucoides (L.) DC. Brassicaceae), a widespread Mediterranean weed found on arable fields and roadsides, is studied in this paper. The effects of different hand-pollination treatments on fruit and seed production are analyzed. Results demonstrate that individuals of Diplotaxis erucoides are able to self-pollinate. There are significant differences in fertility, number of seeds produced per fruit and fruit size between treatments that produce allogamy and those that lead to autogamy. Fertility decreases progressively along the following sequence : geitonogamy, autogamy by induced self-pollination and autogamy by spontaneous pollination. En este trabajo se estudia e l sistema reproductivo de Diplotaxis erucoides (L.) DC. (Brasstcaceae); una especie arvense ampliamente distribuida en los cultivos y los márgenes de caminos de la región mediterránea. Mediante polinizaciones manuales con polen procedente de la propia flor (autogamia). de flores del mismo individuo (geitonogamia) y de flores de individuos de otras poblaciones (alogamia) se analiza el efecto de los diferentes tratamientos de polinización sobre la producción de frutos y semillas. Los resultados obtenidos muestran que Diplotaxis erucotdeses una especie con capacidad para autopolinizarse. Hay diferencias significativas en la fertilidad y en e l número de semillas por fruto entre los tratamientos que generan alogamia y los que originan autogamia. Dentro de los tratamientos con autogamia, Ia fertilidad disminuye progresivamente en e l paso de geitonogamia a autogamia por autopolinización inducida y a autogamia por autopolinización espontánea.
Regeneration of Paeonia mlokosewitschii Lom. and P. tenuifolia L. in vitro from different explants
Teresa Orlikowska,Agnieszka Marasek,Danuta Kucharska
Acta Societatis Botanicorum Poloniae , 1998, DOI: 10.5586/asbp.1998.026
Abstract: The pattern of regeneration from tissues of Paeonia mlokosewitschii and P. tenuifolia cultured in vitro in the same chemical conditions depended on the initial explant. Direct shoot regeneration was obtained from the bases of petioles and petals, and leaf veins. Vegetative initial buds and regenerated in vitro shoots produced on their bases slowly growing nodular callus which was very productive in repetitive shoot regeneration. The tops of stems, flower bases, sepals, petals and ovary walls produced small callus which regenerated white and red spherical structures within 1.5 years. After that time also from those cultures arised nodular, shoot regenerating callus developed.
Flower Characteristics and the Yield of Jatropha (Jatropha curcas L.) Accessions  [PDF]
HAYATI Journal of Biosciences , 2009,
Abstract: The flower characteristics of a plant is one of the important traits correlated to its productivity. Study on flower characteristics is useful to understand how to increase the crop productivity. The research was conducted at Agro Techno Park Center, Indonesian State Ministry of Research and Technology, Bakung Village, Ogan Ilir Distric South Sumatra from April 2007 to August 2008. The objective of this research was to evaluate the flower characteristics and the yield of jatropha (Jatropha curcas L.) accessions. The research was arranged in a randomized block design, consisted of fifteen accessions of jatropha, with three replicates. The Jatropha accessions were collected from different agro ecosystems located in Sumatra, Java, and Borneo. The results indicated that the evaluated accessions have significant differences in the flower characteristic and the yields. The ratio male–female flower is the most important character for J. curcas L. because it has a significant correlation to the yield.
Classification of Pepper (Capsicum annuum L.) Accessions by RAPD Analysis
Kassinee Sitthiwong,Toshiyuki Matsui,Sutevee Sukprakarn
Biotechnology , 2005,
Abstract: Ten pepper (Capsicum annuum L.) germplasm accessions from Thailand were screened using random amplified polymorphic DNA (RAPD) markers. Twelve dodecamer oligonucleotide primers, singly and in combination were used. The similarity values among the studied genotypes range from 0.209 to 0.891. The resulting dendrogram divided the accessions into two major groups. The first group which include 8 accessions with white corolla was further divided into two subgroups. The first subgroup included 4 long-fruited (CA849, CA958, CA1107 and CA1118) and 1 medium-fruited (CA365). The second subgroup included 1 medium-fruited (CA367) and 1 short-fruited (CA398). However, the medium-fruited CA020 could not be clustered into any subgroup. The second group included a short-fruited with 1 white having green margin corolla (CA024) and a yellow green with green-yellow spots corolla (CA034). The obtained clustering based on RAPD markers was consistent with morphological characteristics of the different pepper accessions.
Page 1 /100
Display every page Item

Copyright © 2008-2017 Open Access Library. All rights reserved.