Notulae Botanicae Horti Agrobotanici Cluj-Napoca
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The use of phytotherapy in hepatocellular carcinoma – a systematic review
Get PDFHepatocellular carcinoma (HCC) is one of the most common malignant tumours and the second most frequent cause of cancer-related death worldwide. The aim of this review is to identify whether phytotherapy has an effect over the treatment of HCC or if it is suitable as a combination with chemotherapy. A systematic review was performed in order to offer current information over the use of phytotherapy in HCC. We conducted an electronic search of articles published in English in peer reviewed journals between 2012-2022. After keywords were associated, 302 articles were found. After the exclusion of articles which did not meet the inclusion criteria, there were 77 articles eligible for abstract evaluation. The following were discarded: two case report, one systematic review, 36 in vitro studies and nine studies which discussed other pathologies or with no regard to phytotherapy. The remaining articles encompassed 27 in vivo studies of phytotherapy in hepatocellular carcinoma and two randomized control trials. This selection process is illustrated in the Prisma Flow Diagram. Amongst the evaluated articles, two of them researched the effect of phytotherapy over human subjects in two randomized control trials, while the others illustrated the outcomes of phytotherapy over hepatocellular carcinoma cells and murine specimens. To sum up, phytotherapy has proven its usefulness in hepatocellular carcinoma, especially throughout the following mechanisms: anti-inflammatory effect, suppressing malignant cell proliferation, inhibiting angiogenesis, stimulating apoptosis, and even sensitizing cells to chemotherapy
Response of different cultivation substrates on the chilling injury symptom of sweet pepper grown in hydroponics
Get PDFThis study determined the chilling injury interactions of sweet peppers with their hydroponic growth substrate. The treatments were cocopeat, perlite, and a mixture of 50:50 cocopeat and perlite (coco-perlite). The fruits, when harvested, were stored for 50 days using the modified atmosphere package (MAP) at 5 °C. The results revealed no significant interactions between the growth substrate and the chilling injury indicators (respiration and ethylene production rates, electrolyte leakage, malondialdehyde), even though a significant interaction existed with the chilling injury index (a water-soaked area). This is believed to be due to the growth substrate’s significant interactions with soluble solids and dry matter, which aided cellular balance and increased chilling injury tolerance in perlite and coco-perlite treatment. Weight loss rate and firmness loss were insignificant in all treatments, and cocopeat treatment may be considered the worst of all treatments
Biostimulant application of whey protein hydrolysates and potassium fertilization enhances the productivity and tuber quality of sweet potato
Get PDFUtilizing biostimulants like protein hydrolysates is one of the most creative and promising approaches to improving nutritional efficiency, abiotic stress tolerance, or crop quality traits. In the present study, whey protein was hydrolysed with trypsin for 4 h at an enzyme/substrate ratio (1/300, w/w). The obtained whey protein hydrolysates (WPH) were chemically characterized, and their antioxidant activity was estimated. WPH, which was produced using trypsin for 4 hours and presented the highest antioxidant activity. Therefore, it was selected as a bio stimulant with potassium fertilization for enhancing the productivity and tuber quality of sweet potatoes. A field experiment was carried out during the two successive summer seasons, at a private vegetable farm in Faques City, Sharkia Governorate, Egypt, to study the effect of different potassium rates (50, 75, and 100 kg K2O/fad) and WPH at 0.10 and 0.20% as a foliar application compared to unsprayed plants (control). The interaction between K2O at 100 kg /fad and spraying with WPH at 0.15% increased shoot dry weight/ plant, N, P, and K uptake by shoots, yield/plant, marketable yield, and total yield/fad, as well as average tuber root weight. It was concluded that the most efficient bio-stimulating foliar spray treatment for increasing sweet potato productivity was WPH (0.20%)
An experimental study on the effects copper and lead on the seedlings of some economically important vegetable species
Get PDFBioaccumulation of toxic heavy metals in vegetables is closely related to the problems of safety concerns as they negatively affect plants in particular those consumed by the humans. Among the food systems the vegetables are the most noticeable foods affected by environmental pollution. Vegetables can take up the metals like copper and lead and store them in excessive levels. Keeping this in view this investigation was undertaken to study the effect of copper and lead concentrations (20, 40, 80, 160, 240, 320, 640, and 1280 µM) and assess their toxic affects on germination and seedling growth at early stages of eight vegetable cultivars; kidney bean, peas, black-eyed bean, artichoke, kale, lettuce, rocket and radish. The results were evaluated by multivariate analysis of variance and Pearson correlation statistical analysis. Our results indicate that the seeds of the vegetables studied by us are generally tolerant to both copper as well lead, except higher concentration exposures which showed no improvement when applied to artichoke (for Cu 1280 µM) and lettuce seeds (Cu 1280 µM; Pb 1280 µM). An application of copper and lead ended up with a decrease in barium, calcium, iron, magnesium, manganese, sodium and zinc content in all seedlings studied. In all vegetables exposed to copper and lead a promotion in copper and lead accumulation was recorded. There was a decrease in nutrient element intake which interrupted the mineral element uptake in the seedlings
Methodological contribution on seed germination and seedling initial growth tests in wild plants
Get PDFThe text is intended for biologists and ecologists working with wild plant species. The article draws attention to possible methodological inaccuracies in determining seed germination and in various attempts to manipulate the seeds of wild plant species. The difference between seed germination in the laboratory and in the wild (in the field), basic principles of seed collection or selection, selection of test sample, basic parameters related to seed germination (seed germination, germination rate, mean germination time, germination index), and initial growth seedlings (seedling vitality index, R/S ratio) are described. The text aims to methodically clarify experiments related to seed germination and initial seedling growth, so different wild plant species can be better compared with each other
Evaluation of twenty genotypes of wheat (Triticum aestivum L.) grown under heat stress during germination stage
Get PDFHeat stress is one of the most devastating abiotic stresses which causes significant loss of agricultural crop productivity. Thus, it is critical to examine the wheat’s response to the heat stress at seedling stage and adopt an appreciated breeding method to develop heat tolerance and to avoid harmful effects. Therefore, twenty wheat genotypes, including two local landraces, were evaluated in the current study to investigate the genetic diversity for heat tolerance at the seedling stage. Grains of wheat genotypes were placed on filter papers in Petri dishes for germinating at different temperature ranges (i.e., 25 °C as control, 30 °C, 35 °C, and 40 °C). The experiment was laid out in a completely randomized design (CRD) with the factorial arrangement and the number of replications was three. Analysis of variance (ANOVA) for seedling traits and biochemical analysis showed that the genotypes had significant differences for coleoptile length, shoot length (SL), root length (RL), shoot fresh weight (SFW), vigor index (VI), glycine betaine (GB) and proline content. The effect of temperature treatments on different wheat genotypes also exhibited highly significant variation for VI. Principal component analysis (PCA) showed that four factors contributed 82.8% to total variability with the Eigen value greater than 0.7 at 35 °C. Correlation analysis showed that coleoptile length and germination percentage (GP) had a highly significant-positive correlation with SL, VI, and SFW. Results showed that wheat genotypes of ‘Maraj’, ‘Fareed’, ‘Darabi’, ‘Zincol-16’, ‘Barsat’, ‘NARC-2011’, and ‘Mundar’ showed superior performance when grown under different temperatures. ‘NARC-2011’, ‘Inqalab-91’, and ‘Galexy’ wheat genotypes performed well regarding of H2O2 and antioxidant activity. These genotypes had a significant level of variability under heat stress and can be used under high temperatures in future breeding programs for further research purposes
Pre-harvest application of proline, methionine, and melatonin improves shelf-life and maintains nutritional quality of Brassica oleracea florets during cold storage
Get PDFThe reduction in shelf-life and nutritional value of cauliflower florets are the most vital problems during cold storage. This research was performed to explore the impact of the pre-harvest foliar implementation of proline (PR), methionine (MT), and melatonin (ML), at a rate of 25 mg.L−1, on shelf-life and active composites of cauliflower florets (cv. ‘Arasya’) stored at 10 °C for 14 d. The obtained results exhibited that florets from treated plants with PR, MT, and ML were lower in water loss, electrolyte leakage, browning index, and titratable acidity (TA) compared with untreated plants, at the end of storage. Furthermore, these pre-harvest treatments significantly slow down the loss of total sugar content, reducing sugar, total soluble solid (TSS), glucosinolates concentration (Gly), total phenols (TP), vitamin C (VC), and antioxidant activity (DPPH) than control samples. After 14 days of storage, the application of PR, MT, and ML significantly improved the activity levels of phenylalanine ammonia-lyase (PAL), and catalase (CAT) as well as declined the polyphenol oxidase (PPO), peroxidase (POD) activates in the florets during the cold storage. Therefore, the pre-harvest application of PR, MT, and ML might be promising substances to keep the nutritional quality of cauliflower forests and reduce the browning index during cold storage
Effects of harvest date on plant growth parameters and fruit phytochemical contents in different cultivars of chokeberry
Get PDFChokeberry, a type of berry fruit, has garnered attention in recent years due to its remarkable antioxidant properties. The rich bioactive components found in its fruits have been found to exert positive effects on human health. In this research, the growth, yield, and quality of two chokeberry cultivars (‘Nero’ and ‘Viking’) were evaluated, along with detailed biochemical parameters of the fruits, across different harvest dates ranging from mid-August to mid-September. During the experiment, it was observed that the ‘Viking’ cultivar exhibited more upright and taller plant growth than ‘Nero’. There were no significant differences observed between the cultivars in terms of yield, total soluble solids (TSS), total phenolic content (TPC), total monomeric anthocyanins (TMA), and antioxidant activity. However, ‘Nero’ demonstrated superiority in phenolic acids (excluding ferulic acid), glucose, citric acid, quinic acid, and ascorbic acid content. As the harvest progressed from August 31 to September 15, there was an increase in the accumulation of fruit TSS, TPC, TMA, sucrose, glucose, fructose, sorbitol, epicatechin, neo-chlorogenic acid, caffeic acid, chlorogenic acid, and ferulic acid. Harvest dates did not impact antioxidant activity and anthocyanin compound values. Among the taste-related compounds, sorbitol was determined to be the most abundant, while sucrose exhibited a positive correlation with all individual sugars. Additionally, malic acid and quinic acid showed a positive correlation. The combination of the ‘Nero’ cultivar and the September 15th harvest date stood out as the most prominent in superior fruit bioactive compounds
Micropropagation of autochthonous olive varieties from Türkiye
Get PDFOlive (Olea europaea L.) is one of the oldest cultivated fruit species in the world. Fruits and oils of autocthonous olive varieties (native Turkish olive varieties) with unique sensory properties (taste, smell and aroma) gain importance recently. Particularly olive oil companies looking for varieties that have distinct taste, smell and aroma in their oil. Propagation of olive varieties by cuttings and grafting is very difficult and expensive, therefore it is important to find solution for easy and mass propagation. Micropropagation is particularly beneficial to propagate plants that are difficult to reproduce conventionally or to ensure virus-free plants or plants with particular qualities. In this study, in vitro micropropagation success of two autocthonous olive varieties (‘Mavi’ and ‘Guleki’) grown in the origin center of olive, Southeast Anatolia, Türkiye was investigated. Both varieties, have distinct smell, taste and aroma and are difficult to root by cuttings. The effects of three different medium OM (Olive Medium), WPM (Woody Plant Medium) and DKW (Driver-Kuniyuki Walnut Medium) and two different growth regulators BAP (6-Benzylaminopurine) and Zeatin on shoot induction (proliferation) in the in vitro micropropagation of the olive varieties were examined. Obtained shoots were later subjected to in vitro rooting and acclimatization. The highest proliferation efficiency and shoot length for both varieties were obtained with the use of 1 mg Zeatin+0.1 mg GAɜ hormone combinations on OM medium. ‘Mavi’ variety formed more roots compared to ‘Guleki’ (3.33 vs. 2.75 per shoots), and gave the highest rooting rate of 74.33% with 2 mg IBA (Indole Butyric Acid) treatment on ½ OM medium. In terms of rooting rate, Guleki gave the highest rooting (100%) on medium containing ½ OM, 0.2 mg GA3 and 4 mg IBA. 60% and 75% of the micropropagated plants of ‘Mavi’ and ‘Guleki’ varieties adapted well to the external conditions
The critical role of nitrogen in plants facing the salinity stress: Review and future prospective
Get PDFSalinity stress is a serious abiotic stress that negatively affect the crop growth and development. Mineral nutrient supplementation is considered as an effective strategy to mitigate the adverse effects of salinity. Nitrogen (N) is an important nutrient needed for plants and its application also an effective strategy to mitigate adverse impacts of salinity. Salinity stress disturbs plant physiological, and biochemical functions, antioxidant activities, cellular membranes, antioxidant activities and nutrient uptake thereby cause significant reduction in plant growth and development. The application of N maintains membrane stability, plant water relations, leaf gas exchange characteristics, and protect the plants from oxidative damages which induce the salt tolerance in plants. Besides, this N also improves nutrient uptake and it also induce cellular signaling that mitigate the adverse impacts of salinity. Therefore, it is interesting to understand the role of N in inducing salt tolerance in plants. In present review the mechanisms of N uptake and assimilation in plants under saline conditions are discussed. The present review provides information on how N mitigates ionic toxicity, and oxidative damages and maintains nutrient balance to counter the toxic effects of salinity stress in plants. This review will help the readers to learning more about the role of N in inducing salt tolerance in plants