Effects of salinity on the growth rate, carrageenan yield, and cellular structure of Kappaphycus alvarezii (Rhodophyta, Gigartinales) cultured in vitro

2010 ◽  
Vol 23 (3) ◽  
pp. 439-447 ◽  
Author(s):  
Leila Hayashi ◽  
Gabriel S. M. Faria ◽  
Beatriz G. Nunes ◽  
Carmen S. Zitta ◽  
Lidiane A. Scariot ◽  
...  
Keyword(s):  
Growth Rate ◽  
Cellular Structure ◽  
Kappaphycus Alvarezii ◽  
Carrageenan Yield

Growth rate of the carrageenophyte Kappaphycus alvarezii (Rhodophyta, Gigartinales) in vitro

2001 ◽  
Vol 49 (3) ◽  
pp. 155-161 ◽  
Author(s):  
Edison Jose De Paula ◽  
Cintia Erbert ◽  
Ricardo Toledo Lima Pereira
Keyword(s):  
Growth Rate ◽  
Kappaphycus Alvarezii

scholarly journals IN VITRO GROWTH RATE OF Kappaphycus alvarezii MICROPROPAGULE AND EMBRYO BY ENRICHMENT MEDIUM WITH SEAWEED EXTRACT

2015 ◽  
Vol 10 (1) ◽  
pp. 13
Author(s):  
Emma Suryati ◽  
Rosmiati Rosmiati ◽  
Andi Parenrengi ◽  
Andi Tenriulo
Keyword(s):  
Growth Rate ◽  
Survival Rate ◽  
Liquid Medium ◽  
Callus Induction ◽  
Kappaphycus Alvarezii ◽  
Seaweed Extract ◽  
In Vitro Growth ◽  
Seaweed Cultivation ◽  
Enrichment Medium

The development of micropropagule and embryo of seaweed depend on nutrient and fertilizer used. Seaweed has been reported contain hormone regulators such as auxine, cytokinine, gibbereline, and various minerals applied in stimulating the growth ocra plant and wheat culture. The objectives of this study were to determine the potential of Kappaphycus alvarezii extract and its optimal concentration in accelerating of Kappaphycus alvarezii micropropagule and embryo growth. Micropropagule and embryo produced through callus induction were planted into PES 1/20 liquid medium supplemented with seaweed extract at the concentrations of 0 (control), 25, 50, 75, and 100 μL in 10 mL of medium. The results showed that medium enrichment with 50 μL of seaweed extract had the highest survival rate and growth of thallus. In addition, this concentration was also resulted in a good performance of K. alvarezii thallus with the lighter color. The advantage of this study for seaweed cultivation in Indonesia, among others, seaweed can be used as fertilizer, especially in the maintenance of seaweed seed, so that cultivation can be better develop.

Growth rate of the carrageenophyte Kappaphycus alvarezii (Rhodophyta, Gigartinales) in vitro

2001 ◽  
Vol 49 (3) ◽  
pp. 155-161
Author(s):  
Edison Jose de Paula ◽  
Cintia Erbert ◽  
Ricardo Toledo Lima Pereira
Keyword(s):  
Growth Rate ◽  
Kappaphycus Alvarezii

scholarly journals Chemistry of Tropical Eucheumatoids: Potential for Food and Feed Applications

Biomolecules ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 804
Author(s):  
Andrea Ariano ◽  
Nadia Musco ◽  
Lorella Severino ◽  
Anna De Maio ◽  
Annabella Tramice ◽  
...  
Keyword(s):  
Chemical Analysis ◽  
Inductively Coupled Plasma ◽  
Mineral Content ◽  
Kappaphycus Alvarezii ◽  
Optical Emission ◽  
Essential Elements ◽  
Feed Additive ◽  
Inductively Coupled ◽  
Food And Feed

The use of seaweeds as additives in animal nutrition may be a valid option to traditional feed as they represent a rich source of minerals, carbohydrates and antioxidants. The aim of this study was to analyze the chemical composition and in vitro antioxidant capacity of two tropical eucheumatoids, Kappaphycus alvarezii and Kappaphycus striatus, in Malaysian wild offshore waters. The chemical analysis was performed via inductively coupled plasma–optical emission spectroscopy for evaluating the concentration of toxic (Cd, Pb, Hg, As) and essential elements (Mn, Fe, Cu, Ni, Zn, Se); NMR spectroscopy was used for carrageenans investigation. Furthermore, the soluble and fat-soluble antioxidant capacities were determined by FRAP, DPPH and ABTS assays. The chemical analysis revealed a higher content of trace elements in K. alvarezii as compared to K. striatus, and both exhibited a high mineral content. No significant differences in metal concentrations were found between the two species. Both samples showed a mixture of prevailing κ- and t-carrageenans. Finally, the levels of soluble and fat-soluble antioxidants in K. alvarezii were significantly higher than in K. striatus. Our findings suggest that K. alvarezii could be used as a potential feed additive because of its favorable chemical and nutritional features.

scholarly journals Effects of floral thermogenesis on pollen function in Asian skunk cabbage Symplocarpus renifolius

2009 ◽  
Vol 5 (4) ◽  
pp. 568-570 ◽  
Author(s):  
Roger S. Seymour ◽  
Yuka Ito ◽  
Yoshihiko Onda ◽  
Kikukatsu Ito
Keyword(s):  
Growth Rate ◽  
Pollen Germination ◽  
Narrow Range ◽  
Temperature Tolerance ◽  
Early Spring ◽  
Long Period ◽  
Pollen Tube Growth Rate ◽  
Skunk Cabbage ◽  
Effects Of Temperature

The effects of temperature on pollen germination and pollen tube growth rate were measured in vitro in thermogenic skunk cabbage, Symplocarpus renifolius Schott ex Tzvelev, and related to floral temperatures in the field. This species has physiologically thermoregulatory spadices that maintain temperatures near 23°C, even in sub-freezing air. Tests at 8, 13, 18, 23, 28 and 33°C showed sharp optima at 23°C for both variables, and practically no development at 8°C. Thermogenesis is therefore a requirement for fertilization in early spring. The narrow temperature tolerance is probably related to a long period of evolution in flowers that thermoregulate within a narrow range.

Effect of Granulocytic Chalone on the Growth Rate of Continuous Cell Lines Propagated in Vitro A New Assay System

2009 ◽  
Vol 29 (3) ◽  
pp. 257-264 ◽  
Author(s):  
P. Foa ◽  
A. T. Maiolo ◽  
L. Lombardi ◽  
T. Rytomaa ◽  
E. E. Polli
Keyword(s):  
Growth Rate ◽  
Cell Lines ◽  
Assay System ◽  
Continuous Cell Lines

scholarly journals In Vivo Radioprotective Activity of Cell-Permeable Bifunctional Antioxidant Enzyme GST-TAT-SOD against Whole-Body Ionizing Irradiation in Mice

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Jianru Pan ◽  
Huocong He ◽  
Ying Su ◽  
Guangjin Zheng ◽  
Junxin Wu ◽  
...  
Keyword(s):  
Growth Rate ◽  
Antioxidant Activity ◽  
Body Weight ◽  
Whole Body ◽  
White Pulp ◽  
Radioprotective Activity ◽  
Significant Difference ◽  
Wbc Count

GST-TAT-SOD was the fusion of superoxide dismutase (SOD), cell-permeable peptide TAT, and glutathione-S-transferase (GST). It was proved to be a potential selective radioprotector in vitro in our previous work. This study evaluated the in vivo radioprotective activity of GST-TAT-SOD against whole-body irradiation. We demonstrated that intraperitoneal injection of 0.5 ml GST-TAT-SOD (2 kU/ml) 2 h before the 6 Gy whole-body irradiation in mice almost completely prevented the splenic damage. It could significantly enhance the splenic antioxidant activity which kept the number of splenic white pulp and consequently resisted the shrinkage of the spleen. Moreover, the thymus index, hepatic antioxidant activity, and white blood cell (WBC) count of peripheral blood in irradiated mice pretreated with GST-TAT-SOD also remarkably increased. Although the treated and untreated irradiated mice showed no significant difference in the growth rate of animal body weight at 7 days postirradiation, the highest growth rate of body weight was observed in the GST-TAT-SOD-pretreated group. Furthermore, GST-TAT-SOD pretreatment increased resistance against 8 Gy whole-body irradiation and enhanced 30 d survival. The overall effect of GST-TAT-SOD seemed to be a bit more powerful than that of amifostine. In conclusion, GST-TAT-SOD would be a safe and potentially promising radioprotector.

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