Oenothera biennis
Adaptation and impairment of DNA repair function in pollen of Betula verrucosa and seeds of Oenothera biennis from differently radionuclide-contaminated sites of Chernobyl. (1/5)
BACKGROUND AND AIMS: The plants that have remained in the contaminated areas around Chernobyl since 1986 encapsulate the effects of radiation. Such plants are chronically exposed to radionuclides that they have accumulated internally as well as to alpha-, beta- and gamma-emitting radionuclides from external sources and from the soil. This radiation leads to genetic damage that can be countered by DNA repair systems. The objective of this study is to follow DNA repair and adaptation in haploid cells (birch pollen) and diploid cells (seed embryos of the evening primrose) from plants that have been growing in situ in different radionuclide fall-out sites in monitored regions surrounding the Chernobyl explosion of 1986. METHODS: Radionuclide levels in soil were detected using gamma-spectroscopy and radiochemistry. DNA repair assays included measurement of unscheduled DNA synthesis, electrophoretic determination of single-strand DNA breaks and image analysis of rDNA repeats after repair intervals. Nucleosome levels were established using an ELISA kit. KEY RESULTS: Birch pollen collected in 1987 failed to perform unscheduled DNA synthesis, but pollen at gamma/beta-emitter sites has now recovered this ability. At a site with high levels of combined alpha- and gamma/beta-emitters, pollen still exhibits hidden damage, as shown by reduced unscheduled DNA synthesis and failure to repair lesions in rDNA repeats properly. Evening primrose seed embryos generated on plants at the same gamma/beta-emitter sites now show an improved DNA repair capacity and ability to germinate under abiotic stresses (salinity and accelerated ageing). Again those from combined alpha- and gamma/beta-contaminated site do not show this improvement. CONCLUSIONS: Chronic irradiation at gamma/beta-emitter sites has provided opportunities for plant cells (both pollen and embryo cells) to adapt to ionizing irradiation and other environmental stresses. This may be explained by facilitation of DNA repair function. (+info)Evolution in plant populations as a driver of ecological changes in arthropod communities. (2/5)
(+info)Evening primrose oil. (3/5)
Evening primrose oil (Oenothera biennis) is a commonly used alternative therapy and a rich source of omega-6 essential fatty acids. It is best known for its use in the treatment of systemic diseases marked by chronic inflammation, such as atopic dermatitis and rheumatoid arthritis. It is often used for several women's health conditions, including breast pain (mastalgia), menopausal and premenstrual symptoms, cervical ripening, and labor induction or augmentation. However, there is insufficient evidence to make a reliable assessment of its effectiveness for most clinical indications. The current evidence suggests that oral evening primrose oil does not provide clinically significant improvement in persons with atopic dermatitis, and that it is also likely ineffective for the treatment of cyclical mastalgia and premenstrual syndrome. However, most trials to date have significant methodologic flaws and must be considered preliminary. The use of evening primrose oil during pregnancy is not supported in the literature and should be avoided. Evening primrose oil is generally well tolerated, with reported minor adverse effects, including gastrointestinal upset and headaches. Optimal dosing standards and treatment regimens await clarification in adequately powered clinical trials. (+info)Insect herbivores drive real-time ecological and evolutionary change in plant populations. (4/5)
(+info)Plant genotypic diversity reduces the rate of consumer resource utilization. (5/5)
(+info)'Oenothera biennis', also known as evening primrose, is a species of herbaceous plant with biennial life cycle, belonging to the Onagraceae family, characterized by its yellow flowers that open in the evening or at night and seeds containing gamma-linolenic acid (GLA), which are used in pharmaceutical industry for producing dietary supplements and medicines.
'Oenothera biennis' is not a medical term, but a scientific name for an plant species also known as Evening Primrose. It is a wildflower native to North America and its seeds are used in the production of evening primrose oil, which is sometimes used as a complementary and alternative medicine (CAM) supplement for various conditions such as eczema, rheumatoid arthritis, and premenstrual syndrome (PMS). The oil contains gamma-linolenic acid (GLA), an omega-6 fatty acid that is thought to have anti-inflammatory properties. However, it's important to note that the effectiveness of evening primrose oil for these uses is not conclusively established and more research is needed. As with any supplement, it should be used under the guidance of a healthcare provider.
Oenothera, also known as evening primrose, is a genus of flowering plants in the family Onagraceae, characterized by their yellow flowers that open in the evening or on cloudy days.
"Oenothera" is a botanical term for a genus of plants commonly known as evening primroses. It's not typically used in a medical context, but the plants do have some medicinal uses. For instance, certain species of Oenothera are used in herbal medicine for their soothing properties, particularly for skin irritations and digestive issues. However, it's important to note that the use of these plants in a medical context should be under the guidance of a healthcare professional, as they can also have side effects and interact with other medications.
Onagraceae7
- Oenothera biennis, the common evening-primrose, is a species of flowering plant in the family Onagraceae, native to eastern and central North America, from Newfoundland west to Alberta, southeast to Florida, and southwest to Texas, and widely naturalized elsewhere in temperate and subtropical regions. (wikipedia.org)
- herbaceous plants of the genus Oenothera , of the family Onagraceae, noted for their showy flowers. (britannica.com)
- Oenothera biennis (Onagraceae) It is an erect biennial featuring large, bowl-shaped, lemon-scented, yellow flowers, up to 2 in. (lifestyleseeds.co.za)
- Oenothera Biennis Oil is the fixed oil derived from the seeds of the evening primrose, Oenothera biennis, Onagraceae. (cosmeticanalysis.com)
- 1997. Systematics of Oenothera section Oenothera subsection Oenothera (Onagraceae). (vurv.cz)
- Genus Oenothera (Onagraceae) in the former Soviet Union: taxonomy and distribution. (vurv.cz)
- Evening primrose ( Oenothera biennis ) is a plant of the Onagraceae family that is mainly used to make evening primrose oil. (botanical-online.com)
Seeds Oenothera1
- Jarrow Evening Primrose is a cold-pressed, solvent free oil from evening primrose seeds (Oenothera lamarckiana), a superior source of Gamma-Linolenic Acid (GLA), an important omega-6 fatty acid involved in human metabolism. (swansonvitamins.com)
Lamarckiana1
- Unlike the roadside weed, Oenothera biennis, O. lamarckiana makes a good meadow plant. (americanmeadows.com)
Evening5
- Oenothera biennis or as it is more commonly known as evening primrose oil is an ingredient used in skincare and cosmetic products to help moisturise the skin and may help to reduce inflammation, irritation and support the treatment of acne. (thedermreview.com)
- Evening primrose oil (oenothera biennis) is very useful in easing breast tenderness. (home-remedies-for-you.com)
- for example, Oenothera biennis, also known as common evening primrose! (vmnh.net)
- A favorite destination of the Sphinx moth, evening primrose (Oenothera biennis) may reach up to 8 feet tall. (gardenguides.com)
- Evening primrose (Oenothera biennis) defatted seed extract (20% polyphenols) - This ingredient supports women's health and healthy skin. (4life.com)
Biennial1
- Oenothera biennis has a life span of two years (biennial) growing to 1.6 m (5 ft 3 in) tall. (wikipedia.org)
Scientific1
- Please log in to read excerpts from scientific literature and experts statements about Oenothera Biennis Oil. (cosmeticanalysis.com)
Perennial1
- Oenothera odorata is a PERENNIAL growing to 0.9 m (3ft) by 0.3 m (1ft in). (pfaf.org)
Products1
- This list includes 10 random products that contain Oenothera Biennis Oil. (cosmeticanalysis.com)
Years1
- The seeds of O. biennis can remain viable in the soil seed bank for 70 years or more. (wikipedia.org)
Seeds1
- The seeds of O. biennis can remain viable in the soil seed bank for 70 years or more. (wikipedia.org)
Muricata1
- Oenothera muricata. (pfaf.org)
Onagra1
- Onagra biennis. (pfaf.org)
Oakesiana1
- 4. Oenothera oakesiana (A. Gray) J. W. Robbins ex S. Watson & Coulter, Manual, ed. 6. (efloras.org)
Roots1
- 16. Antiproliferative and antimicrobial efficacy of the compounds isolated from the roots of Oenothera biennis L. (nih.gov)
Plants1
- I've come to appreciate scrappy native plants like Oenothera biennis that are often the first to show up in disturbed areas. (clayandlimestone.com)
JUICE1
- Its Latin name, Oenothera, means "a plant whose juice may cause sleep, capturing its sedative qualities. (trustedhealthproducts.com)
Type1
- Vous trouverez également le type de panier à utiliser (dimensions) par rapport à l'acquisition d'une plante en godet, ainsi que le substrat qui lui convient le mieux. (passionbassin.com)
Show1
- These plots show the elevations and times of year where the plant Oenothera biennis has been observed. (wildflowersearch.org)
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