Promoted Growth and Development of Carnation Plantlets In Vitro by Ventilation and Combined Red and Blue Light

2018 ◽  
Vol 26 (4) ◽  
pp. 166-178
Author(s):  
Quan Hoang Nguyen ◽  
◽  
Luc The Thi ◽  
Yoo Gyeong Park ◽  
Byoung Ryong Jeong
Keyword(s):  
Blue Light ◽  
Growth And Development

scholarly journals INFLUENCE OF DIFFERENT LIGHTING SPECTRA ON GROWTH AND DEVELOPMENT OF IN VITRO VIRUS-FREE POTATO PLANTS

2016 ◽  
Vol 24 ◽  
pp. 73-78
Author(s):  
L. M. Reshotko ◽  
S. V. Derevianko ◽  
O. O. Dmitruk ◽  
I. V. Volkova
Keyword(s):  
Chlorophyll Content ◽  
Blue Light ◽  
Growth And Development ◽  
Red Light ◽  
Potato Cultivar ◽  
Potato Cultivars ◽  
Light Spectra ◽  
Potato Plants ◽  
In Vitro Plants

It was found that the additional lighting affects habіtus of in vitro plants: red light correction increases the growth of potato cultivars such as Shchedrik, Tyras and Suvenir Chernihivskyi, and blue light correction leads to a significant reduction in height of Suvenir Chernihivskyi potato cultivar and to the accelerated formation of stolons in all tested varieties. The chlorophyll content in the leaves of potato plants was increased with additional lighting. It depended both on the light spectra and the reaction of varieties to lighting.

scholarly journals Characterization of Plant Growth-Promoting Traits and Inoculation Effects on Triticum durum of Actinomycetes Isolates under Salt Stress Conditions

Soil Systems ◽  
2021 ◽  
Vol 5 (2) ◽  
pp. 26
Author(s):  
Rihab Djebaili ◽  
Marika Pellegrini ◽  
Massimiliano Rossi ◽  
Cinzia Forni ◽  
Maria Smati ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Salt Stress ◽  
Plant Growth ◽  
Durum Wheat ◽  
Growth And Development ◽  
Indole Acetic Acid ◽  
Greenhouse Experiment ◽  
Hydrocyanic Acid ◽  
In Vitro Assays

This study aimed to characterize the halotolerant capability, in vitro, of selected actinomycetes strains and to evaluate their competence in promoting halo stress tolerance in durum wheat in a greenhouse experiment. Fourteen isolates were tested for phosphate solubilization, indole acetic acid, hydrocyanic acid, and ammonia production under different salt concentrations (i.e., 0, 0.25, 0.5, 0.75, 1, 1.25, and 1.5 M NaCl). The presence of 1-aminocyclopropane-1-carboxylate deaminase activity was also investigated. Salinity tolerance was evaluated in durum wheat through plant growth and development parameters: shoot and root length, dry and ash-free dry weight, and the total chlorophyll content, as well as proline accumulation. In vitro assays have shown that the strains can solubilize inorganic phosphate and produce indole acetic acid, hydrocyanic acid, and ammonia under different salt concentrations. Most of the strains (86%) had 1-aminocyclopropane-1-carboxylate deaminase activity, with significant amounts of α-ketobutyric acid. In the greenhouse experiment, inoculation with actinomycetes strains improved the morpho-biochemical parameters of durum wheat plants, which also recorded significantly higher content of chlorophylls and proline than those uninoculated, both under normal and stressed conditions. Our results suggest that inoculation of halotolerant actinomycetes can mitigate the negative effects of salt stress and allow normal growth and development of durum wheat plants.

scholarly journals Complete Inactivation of Blood Borne Pathogen Trypanosoma cruzi in Stored Human Platelet Concentrates and Plasma Treated With 405 nm Violet-Blue Light

2020 ◽  
Vol 7 ◽  
Author(s):  
Katarzyna I. Jankowska ◽  
Rana Nagarkatti ◽  
Nirmallya Acharyya ◽  
Neetu Dahiya ◽  
Caitlin F. Stewart ◽  
...  
Keyword(s):  
Trypanosoma Cruzi ◽  
Human Plasma ◽  
Blue Light ◽  
Chagas Disease ◽  
Light Treatment ◽  
Platelet Concentrates ◽  
Complete Inactivation ◽  
Pathogen Reduction ◽  
Biochemical Indices

The introduction of pathogen reduction technologies (PRTs) to inactivate bacteria, viruses and parasites in donated blood components stored for transfusion adds to the existing arsenal toward reducing the risk of transfusion-transmitted infectious diseases (TTIDs). We have previously demonstrated that 405 nm violet-blue light effectively reduces blood-borne bacteria in stored human plasma and platelet concentrates. In this report, we investigated the microbicidal effect of 405 nm light on one important bloodborne parasite Trypanosoma cruzi that causes Chagas disease in humans. Our results demonstrated that a light irradiance at 15 mWcm−2 for 5 h, equivalent to 270 Jcm−2, effectively inactivated T. cruzi by over 9.0 Log10, in plasma and platelets that were evaluated by a MK2 cell infectivity assay. Giemsa stained T. cruzi infected MK2 cells showed that the light-treated parasites in plasma and platelets were deficient in infecting MK2 cells and did not differentiate further into intracellular amastigotes unlike the untreated parasites. The light-treated and untreated parasite samples were then evaluated for any residual infectivity by injecting the treated parasites into Swiss Webster mice, which did not develop infection even after the animals were immunosuppressed, further demonstrating that the light treatment was completely effective for inactivation of the parasite; the light-treated platelets had similar in vitro metabolic and biochemical indices to that of untreated platelets. Overall, these results provide a proof of concept toward developing 405 nm light treatment as a pathogen reduction technology (PRT) to enhance the safety of stored human plasma and platelet concentrates from bloodborne T. cruzi, which causes Chagas disease.

Growth and development of children conceived by in-vitro maturation of human oocytes

2006 ◽  
Vol 82 (10) ◽  
pp. 677-682 ◽  
Author(s):  
Mu Shu-Chi ◽  
Hwang Jiann-Loung ◽  
Lin Yu-Hung ◽  
Sung Tseng-Chen ◽  
Lin Ming-I ◽  
...  
Keyword(s):  
Growth And Development ◽  
In Vitro Maturation ◽  
Human Oocytes
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