1,097 research outputs found
Combined Effects of Microgravity and Chronic Low-Dose Gamma Radiation on Brassica rapa Microgreens
No full textPlants in space face unique challenges, including chronic ionizing radiation and reduced gravity, which affect their growth and functionality. Understanding these impacts is essential to determine the cultivation conditions and protective shielding needs in future space greenhouses. While certain doses of ionizing radiation may enhance crop yield and quality, providing “functional food” rich in bioactive compounds, to support astronaut health, the combined effects of radiation and reduced gravity are still unclear, with potential additive, synergistic, or antagonistic interactions. This paper investigates the combined effect of chronic ionizing radiation and reduced gravity on Brassica rapa seed germination and microgreens growth. Four cultivation scenarios were designed: standard Earth conditions, chronic irradiation alone, simulated reduced gravity alone, and a combination of irradiation and reduced gravity. An analysis of the harvested microgreens revealed that growth was moderately reduced under chronic irradiation combined with altered gravity, likely due to oxidative stress, primarily concentrated in the roots. Indeed, an accumulation of reactive oxygen species (ROS) was observed, as well as of polyphenols, likely to counteract oxidative damage and preserve the integrity of essential structures, such as the root stele. These findings represent an important step toward understanding plant acclimation in space to achieve sustainable food production on orbital and planetary platforms
Veronica mas, Spirea, Barbarea
No full text1. Nome scientifico: Veronica chamaedrys L.
(Scrophulariaceae)
Nome attuale: Veronica comune
2. Nome scientifico: Spiraea hypericifolia L.
(Rosaceae)
Nome attuale: Spirea spagnola
3. Nome scientifico: Barbarea vulgaris r. Br.
(Brassicaceae, Cruciferae)
Nome attuale: Erba di Santa Barbar
Veronica alpina (Alpine Brooklime) : Alpine Brooklime
No full textClass: Dicotyledoneae
Family: Scrophulariaceae
Genus: Veronica
Species: alpin
Veronica peregrina (Hairy Speedwell) : Hairy Speedwell
No full textClass: Dicotyledoneae
Family: Scrophulariaceae
Genus: Veronica
Species: peregrin
Ep. #024 - Veronica Strang
No full textThis recording and transcript form part of a collection of podcasts conducted by the Cultures of Energy at Rice University. Cultures of Energy brings writers, artists and scholars together to talk, think and feel their way into the Anthropocene. We cover serious issues like climate change, species extinction and energy transition. But we also try to confront seemingly huge and insurmountable problems with insight, creativity and laughter.Water, water everywhere. The human sciences have become animated by the politics, ethics and materiality of water of late and for good reason. Our guest (11:13) on this week’s Cultures of Energy podcast was one of the first to get this conversation started. Anthropologist Veronica Strang, currently Executive Director of the Institute for Advanced Study at Durham University, is the author of The Meaning of Water (Oxford, 2004) and Water: Culture and Nature (Reaktion, 2015) and a recipient of UNESCO’s International Water Prize. We talk about how the transgressive and transformative properties of water cut across cultures and how its material liquidity complicates our cultural and legal understandings of ownership and property. Veronica explains why we have to think water across scales, from its mediation of individual bodies to how its flows form communities. We talk about the infamous case of Bolivia’s water privatization, efforts to enclose water resources across the world and how contemporary politics of water are undermining democracy. Veronica also reminds us though that efforts to centralize control over water are ancient and that the movements that are now seeking to decentralize water resources also have hope. In closing we discuss cosmological and mythological water beings ranging from rainbow serpents to Chinese water dragons to the Lambton Worm, reputed to live in Durham’s own River Wear. Is our concern with hydration and floods these days informed by the moral economy and sacred vitality of water? Has urbanization caused us to lose touch with the hydrological cycle that so powerfully informed the cultural imaginations of our ancestors? Pour yourself a glass of water and listen on
Lilium convallium flore pleno, Veronica minima, Liliu conualliu, Consolida media
No full text1. Nome scientifico: Convallaria majalis L. cv.
(Liliaceae)
Nome attuale: Mughetto
2. Nome scientifico: Veronica prostrata L.
(Scrophulariaceae)
Nome attuale: Veronica sdraiata
3. Nome scientifico: Convallaria majalis L.
(Liliaceae)
Nome attuale: Mughetto, Giglio delle convalli
4. Nome scientifico: Ajuga reptans L.
(Lamiacee, Labiatae)
Nome attuale: Bugula, Erba di San Lorenzo, Consolid
Light signals counteract alterations caused by simulated microgravity in proliferating plant cells
No full text18 p.-9 fig.Premise: Light and gravity are fundamental cues for plant development. Our understanding of the effects of light stimuli on plants in space, without gravity, is key to providing conditions for plants to acclimate to the environment. Here we tested the hypothesis that the alterations caused by the absence of gravity in root meristematic cells can be counteracted by light.Methods: Seedlings of wild‐type Arabidopsis thaliana and two mutants of the essential nucleolar protein nucleolin (nuc1, nuc2) were grown in simulated microgravity,either under a white light photoperiod or under continuous darkness. Key variables of cell proliferation (cell cycle regulation), cell growth (ribosome biogenesis),and auxin transport were measured in the root meristem using in situ cellular markers and transcriptomic methods and compared with those of a 1 g control.Results: The incorporation of a photoperiod regime was sufficient to attenuate or suppress the effects caused by gravitational stress at the cellular level in the root meristem. In all cases, values for variables recorded from samples receiving light stimuli in simulated microgravity were closer to values from the controls than values from samples grown in darkness. Differential sensitivities were obtained for the two nucleolin mutants.Conclusions: Light signals may totally or partially replace gravity signals, significantly improving plant growth and development in microgravity. Despite that, molecular alterations are still compatible with the expected acclimation mechanisms, which need to be better understood. The differential sensitivity of nuc1 and nuc2 mutants to gravitational stress points to new strategies to produce more resilient plants to travel with humans in new extraterrestrial endeavors.This work was funded by the Agencia Estatal de Investigación of the Spanish Ministry of Science an Innovation, Grants#ESP2015‐64323‐R and #RTI2018‐099309‐B‐I00 (co‐funded by EU‐ERDF) to F.J.M., and Bonus Recherche from the UPVD to J.S.V. The use of the facilities of microgravity simulation was provided by the ESA‐CORA‐Ground Based Facilities Program, contract Ref. #4000105761 to F.J.M. and R.H. A.M. was recipient of a contract of the Program for Young Researchers Training of the Agencia Estatal de Investigación of the Spanish Ministry of Science an Innovation
Ref. #BES‐2013‐063933.Peer reviewe
The content of fatty acids in lipophilic extracts of Veronica chamaedrys L. and Veronica officinalis L.
No full textMarchyshyn S. M., Milian I. I. The content of fatty acids in lipophilic extracts of Veronica chamaedrys L. and Veronica officinalis L. Journal of Education, Health and Sport. 2016;6(3):91-96. eISSN 2391-8306. DOI http://dx.doi.org/10.5281/zenodo.47673
http://ojs.ukw.edu.pl/index.php/johs/article/view/3427
https://pbn.nauka.gov.pl/works/720389
The journal has had 7 points in Ministry of Science and Higher Education parametric evaluation. Part B item 755 (23.12.2015).
755 Journal of Education, Health and Sport eISSN 2391-8306 7
© The Author (s) 2016;
This article is published with open access at Licensee Open Journal Systems of Kazimierz Wielki University in Bydgoszcz, Poland
Open Access. This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium,
provided the original author(s) and source are credited. This is an open access article licensed under the terms of the Creative Commons Attribution Non Commercial License
(http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted, non commercial use, distribution and reproduction in any medium, provided the work is properly cited.
This is an open access article licensed under the terms of the Creative Commons Attribution Non Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted, non commercial
use, distribution and reproduction in any medium, provided the work is properly cited.
The authors declare that there is no conflict of interests regarding the publication of this paper.
Received: 05.01.2016. Revised 12.02.2016. Accepted: 27.02.2016.
UDC 615.32+661.732.7]-092.4
THE CONTENT OF FATTY ACIDS IN LIPOPHILIC EXTRACTS OF VERONICA CHAMAEDRYS L. AND VERONICA OFFICINALIS L.
S. M. Marchyshyn, I. I. Milian
SHEI «I.Ya. Horbachevsky Ternopil State Medical University
Ministry of Health of Ukraine»
S.M. Marchyshyn, doctor of pharmacy, professor,
I.I. Milian, master of pharmacy
Summary
There is indicated the results of the investigation of lipophilic fraction obtained from the herbs of Veronica chamaedrys L. and Veronica officinalis L., determined the yield of the lipophilic fraction in relation to the raw materials, settled the content of fatty acids in lipophilic extract. It is noted that linoleic and linolenic fatty acids dominated in the investigation materials.
Keywords: fatty acids, herb, Veronica chamaedrys L., Veronica officinalis L., a gas chromatography-mass spectrometry
Abrotano Femina, Abrotano Maschio, Veronica spicata
No full text1. Nome scientifico: Santolina marchii Arrigoni
(Asteraceae, Compositae)
Nome attuale: Santolina, Crespolina
2. Nome scientifico: Artemisia abrotanum L.
(Asteraceae, Compositae)
Nome attuale: Abrotano
3. Nome scientifico: Pseudolysimachion gr. spicatum (L.) Opiz
(Scrophulariaceae)
Nome attuale: Veronica spicat
Veronica Davis Gerald on Gullah Culture
No full textVeronica Davis Gerald is Director of the Charles Joyner Institute for Gullah and African Diaspora Studies at Coastal Carolina University. In this video abstract, she discusses her identity as both a scholar and native of the Gullah culture. This informs her collaborative work with the Charles Joyner Institute and Gullah communities of the Waccamaw Neck region of South Carolina. Keywords: Gullah Culture, Charles Joyner Institute, South Carolina, GUL
- …
