scholarly journals Impact of Ecklonia maxima Seaweed Extract and Mo Foliar Treatments on Biofortification, Spinach Yield, Quality and NUE

Plants ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 1139
Author(s):  
Salvatore La Bella ◽  
Beppe Benedetto Consentino ◽  
Youssef Rouphael ◽  
Georgia Ntatsi ◽  
Claudio De Pasquale ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Brown Seaweed ◽  
Seaweed Extract ◽  
Agricultural Practice ◽  
Vegetable Crops ◽  
Ecklonia Maxima ◽  
Noticeable Improvement ◽  
Key Enzyme ◽  
Leaf Tissues ◽  
Head Height

Seaweed extract (SE) application is a contemporary and sustainable agricultural practice used to improve yield and quality of vegetable crops. Plant biofortification with trace element is recognized as a major tool to prevent mineral malnourishment in humans. Mo deficiency causes numerous dysfunctions, mostly connected to central nervous system and esophageal cancer. The current research was accomplished to appraise the combined effect of Ecklonia maxima brown seaweed extract (SE) and Mo dose (0, 0.5, 2, 4 or 8 µmol L−1) on yield, biometric traits, minerals, nutritional and functional parameters, as well as nitrogen indices of spinach plants grown in a protected environment (tunnel). Head fresh weight (FW), ascorbic acid, polyphenols, N, P, K, Mg and nitrogen use efficiency (NUE) were positively associated with SE treatment. Moreover, head FW, head height (H), stem diameter (SD), ascorbic acid, polyphenols, carotenoids as well as NUE indices were enhanced by Mo-biofortification. A noticeable improvement in number of leaves (N. leaves), head dry matter (DM) and Mo concentration in leaf tissues was observed when SE application was combined with a Mo dosage of 4 or 8 µmol L−1. Overall, our study highlighted that E. maxima SE treatment and Mo supply can improve both spinach production and quality via the key enzyme activity involved in the phytochemical homeostasis of SE and the plant nutritional status modification resulting in an enhanced spinach Mo tolerance.

scholarly journals Seaweed Extract Improves Lagenaria siceraria Young Shoot Production, Mineral Profile and Functional Quality

Horticulturae ◽  
2021 ◽  
Vol 7 (12) ◽  
pp. 549
Author(s):  
Beppe Benedetto Consentino ◽  
Leo Sabatino ◽  
Rosario Paolo Mauro ◽  
Carlo Nicoletto ◽  
Claudio De Pasquale ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Total Yield ◽  
Fruit Yield ◽  
Seaweed Extract ◽  
Agricultural Practice ◽  
Lagenaria Siceraria ◽  
Young Shoot ◽  
Yield And Quality ◽  
Mineral Profile

Vegetable landraces represent the main source of biodiversity in Sicily. Lagenaria siceraria is appreciated by Southern Mediterranean consumers for its immature fruits and young shoots. Plant-based biostimulants supply, such as seaweed extract (SwE), is a contemporary and green agricultural practice applied to ameliorate the yield and quality of vegetables. However, there are no studies concerning the effects of SwE on L. siceraria. The current study evaluated the effects of SwE foliar application (0 or 3 mL L−1) on five L. siceraria landraces (G1, G2, G3, G4 and G5) grown in greenhouses. Growth traits, first female flower emission, fruit yield, young shoot yield, fruit firmness, young shoot nitrogen use efficiency (NUEys) and specific young shoot quality parameters, such as soluble solids content (SSC), mineral profile, ascorbic acid, and polyphenols, were appraised. Plant height and number of leaves at 10, 20 and 30 days after transplant (DAT) were significantly higher in plants treated with SwE as compared with untreated plants. Treating plants with SwE increased marketable fruit yield, fruit mean mass, young shoot yield and number of young shoots by 14.4%, 15.0%, 22.2%, 32.4%, and 32.0%, respectively as compared with untreated plants. Relevant increments were also recorded for NUEys, P, K, Ca, Mg, ascorbic acid and polyphenols concentration. SwE application did not significantly affect total yield and SSC. Furthermore, SwE treated plants produced a lower number of marketable fruits than non-treated plants. The present study showed that SwE at 3 mL L−1 can fruitfully enhance crop performance, young shoot yield and quality of L. siceraria.

scholarly journals Multispectral Assessment of Sweet Pepper (Capsicum annuum L.) Fruit Quality Affected by Calcite Nanoparticles

Biomolecules ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 832
Author(s):  
Monika Vidak ◽  
Boris Lazarević ◽  
Marko Petek ◽  
Jerko Gunjača ◽  
Zlatko Šatović ◽  
...  
Keyword(s):  
Convex Hull ◽  
Capsicum Annuum ◽  
Fruit Quality ◽  
Sweet Pepper ◽  
Quality Analysis ◽  
Morphological Properties ◽  
Agricultural Practice ◽  
Vegetable Crops ◽  
Physiological Maturity ◽  
Capsicum Annuum L

Sweet pepper (Capsicum annuum L.) is one of the most important vegetable crops in the world because of the nutritional value of its fruits and its economic importance. Calcium (Ca) improves the quality of sweet pepper fruits, and the application of calcite nanoparticles in agricultural practice has a positive effect on the morphological, physiological, and physicochemical properties of the whole plant. The objectives of this study were to investigate the effect of commercial calcite nanoparticles on yield, chemical, physical, morphological, and multispectral properties of sweet pepper fruits using a combination of conventional and novel image-based nondestructive methods of fruit quality analysis. In the field trial, two sweet pepper cultivars, i.e., Šorokšari and Kurtovska kapija, were treated with commercial calcite nanoparticles (at a concentration of 3% and 5%, calcite-based foliar fertilizer (positive control), and water (negative control) three times during vegetation). Sweet pepper fruits were harvested at the time of technological and physiological maturity. Significant differences were observed between pepper cultivars as well as between harvests times. In general, application of calcite nanoparticles reduced yield and increased fruit firmness. However, different effects of calcite nanoparticles were observed on almost all properties depending on the cultivar. In Šorokšari, calcite nanoparticles and calcite-based foliar fertilizers significantly increased N, P, K, Mg, Fe, Zn, Mn, and Cu at technological maturity, as well as P, Ca, Mg, Fe, Zn, Mn, Cu, and N at physiological maturity. However, in Kurtovska kapija, the treatments increased only Ca at technological maturity and only P at physiological maturity. The effect of treatments on fruit morphological properties was observed only at the second harvest. In Šorokšari, calcite nanoparticles (3% and 5%) increased the fruit length, minimal circle area, and minimal circle radius, and it decreased the fruit width and convex hull compared to the positive and negative controls, respectively. In Kurtovska kapija, calcite nanoparticles increased the fruit width and convex hull compared to the controls. At physiological maturity, lower anthocyanin and chlorophyll indices were found in Kurtovska kapija in both treatments with calcite nanoparticles, while in Šorokšari, the opposite effects were observed.

Physiological role of phenolic biostimulants isolated from brown seaweed Ecklonia maxima on plant growth and development

Planta ◽  
2015 ◽  
Vol 241 (6) ◽  
pp. 1313-1324 ◽  
Author(s):  
Adeyemi O. Aremu ◽  
Nqobile A. Masondo ◽  
Kannan R. R. Rengasamy ◽  
Stephen O. Amoo ◽  
Jiří Gruz ◽  
...  
Keyword(s):  
Plant Growth ◽  
Growth And Development ◽  
Brown Seaweed ◽  
Physiological Role ◽  
Plant Growth And Development ◽  
Ecklonia Maxima

scholarly journals Acute Post-Prandial Cognitive Effects of Brown Seaweed Extract in Humans

Nutrients ◽  
2018 ◽  
Vol 10 (1) ◽  
pp. 85 ◽  
Author(s):  
Crystal Haskell-Ramsay ◽  
Philippa Jackson ◽  
Fiona Dodd ◽  
Joanne Forster ◽  
Jocelyn Bérubé ◽  
...  
Keyword(s):  
Brown Seaweed ◽  
Seaweed Extract ◽  
Cognitive Effects

scholarly journals Chemical Stability of Ascorbic Acid Integrated into Commercial Products: A Review on Bioactivity and Delivery Technology

Antioxidants ◽  
2022 ◽  
Vol 11 (1) ◽  
pp. 153
Author(s):  
Xin Yin ◽  
Kaiwen Chen ◽  
Hao Cheng ◽  
Xing Chen ◽  
Shuai Feng ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Active Site ◽  
De Novo ◽  
Food Matrix ◽  
De Novo Synthesis ◽  
Nutritional Characteristics ◽  
Gulonolactone Oxidase ◽  
Key Enzyme ◽  
Commercial Applications ◽  
Delivery Technology

The L-enantiomer of ascorbic acid is commonly known as vitamin C. It is an indispensable nutrient and plays a key role in retaining the physiological process of humans and animals. L-gulonolactone oxidase, the key enzyme for the de novo synthesis of ascorbic acid, is lacking in some mammals including humans. The functionality of ascorbic acid has prompted the development of foods fortified with this vitamin. As a natural antioxidant, it is expected to protect the sensory and nutritional characteristics of the food. It is thus important to know the degradation of ascorbic acid in the food matrix and its interaction with coexisting components. The biggest challenge in the utilization of ascorbic acid is maintaining its stability and improving its delivery to the active site. The review also includes the current strategies for stabilizing ascorbic acid and the commercial applications of ascorbic acid.

scholarly journals Evaluation of Cherry Tomato Genotypes for Qualitative Traits under Open Field and Protected Condition

2020 ◽  
pp. 9-16
Author(s):  
. Chandni ◽  
Deepti Singh ◽  
Shirin Akhtar ◽  
Shiv Shankar Mahesh
Keyword(s):  
Ascorbic Acid ◽  
Open Field ◽  
Ascorbic Acid Content ◽  
Quality Parameters ◽  
Soluble Solids ◽  
Vegetable Crops ◽  
Cherry Tomato ◽  
Total Soluble Solids ◽  
Maximum Value ◽  
Β Carotene

Vegetable, due to higher neutraceutical component, are termed as protective food against various major and minor diseases. Scientific agro-techniques under optimum growing condition like temperature, relative humidity and light intensity, positively influence the qualitative and quantitative attributes of most of the vegetable crops including cherry tomato. It is one of potential vegetable crop, which is extensively utilized for table purpose and for preparing recipies in five star restaurants. Cherry tomato fetches higher prices in market due to good taste and higher nutrients, thus making qualitative attributes as an important factor to give higher returns to the farmers. Thus, this experiment was conducted to estimate the qualitative attributes in eighteen genotypes of cherry tomato grown under both open field and polyhouse conditions. The result of the study revealed that under open field condition, BRCT-30 was the best genotype with maximum value for lycopene content (6.62 mg 100-1 g FW) and β-carotene (2.30 mg 100-1 g FW), second maximum value for total soluble solids (7.85°Brix), third maximum value for reducing sugar and fourth highest position for ascorbic acid content (43.65 mg/100 g FW). Under polyhouse condition, the best genotype for quality parameters was BRCT-36 with maximum total soluble solids (10.81°Brix), lycopene (7.48 mg 100-1 g FW) and β-carotene (2.49 mg 100-1g FW) along with average range of values for ascorbic acid (72.36 mg 100-1 g FW) and titrable acidity (0.55 mg 100-1 g FW).

Na+/H+ exchange in the halophyte Mesembryanthemum crystallinum is associated with cellular sites of Na+ storage

2002 ◽  
Vol 29 (9) ◽  
pp. 1017 ◽  
Author(s):  
Bronwyn J. Barkla ◽  
Rosario Vera-Estrella ◽  
Jesus Camacho-Emiterio ◽  
Omar Pantoja
Keyword(s):  
Salt Tolerance ◽  
Mesembryanthemum Crystallinum ◽  
Protein Levels ◽  
Key Enzyme ◽  
Plant Vacuoles ◽  
Leaf Tissues ◽  
Bladder Cells ◽  
Plant Salt Tolerance ◽  
Vacuolar Sequestration

The tonoplast Na+/H+ exchanger is involved in sequestering Na+ in plant vacuoles, providing solutes for osmotic adjustment while avoiding cytoplasmic Na+ toxicity. As such it is assumed to be one of the key mechanisms involved in salt-tolerance in plants. In this study, we measured tonoplast Na+/H+ exchange in roots and different leaf tissues of adult Mesembryanthemum crystallinum L. plants to determine if activity of the exchanger follows the gradient from roots to leaves previously observed for Na+ and pinitol accumulation. Na+/H+ exchange was absent from roots of control and NaCl-treated plants. In contrast, leaves showed constitutive Na+/H+ exchange that was enhanced by growth of the plants in NaCl. Highest activity was measured in the epidermal bladder cells in agreement with the highest concentrations of Na+ found in this tissue. Tonoplast H+-translocating ATPase activity was also greatest in this tissue, as were protein levels for myo-inositol-O-methyltransferase, a key enzyme in the pinitol biosynthesis pathway. The strong correlation between Na+/H+ exchange and Na+ accumulation confirms the role of this transporter in vacuolar sequestration of Na+ and plant salt tolerance.

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