Abstract：
:Possible role of melatonin in the germination of negatively photoblastic and thermosensitive seeds of Phacelia tanacetifolia Benth was studied. Final germination percentage (FGP) was determined in the presence or absence of light at various temperatures, ranging from 0 to 40°C. The highest FGP was determined as 48.7% and 92% at temperature of 15°C in the presence and absence of light, respectively. Seeds were primed with 1% KNO(3) containing various concentrations (0.3, 1, 6, 12, 30, 60, or 90 μM) of melatonin for 2 days at 15°C in darkness. Primed seeds were germinated at an inhibitory temperature of 30°C, and results were compared to those occurring at the optimum temperature of 15°C under both light and no light conditions. Melatonin incorporated into priming medium significantly reversed the inhibitory effects of light and high temperature. Germination was elevated from 2.5% to 52% of FGP for seeds primed in the presence of 6 μM melatonin in darkness at 30°C, while 1 μM melatonin had the highest FGP (21.0%) in the presence of light at 30°C. The highest FGP (47.5%) was obtained from seeds primed in the presence of 0.3 μM melatonin under the light condition at 15°C, while untreated seeds had 1.5% of FGP. The fastest seed germination was determined from seeds primed in the presence of 0.3 μM melatonin (G(50) = 0.56 days) at 15°C in darkness. The possible roles of melatonin in promoting germination parameters of photo- and thermosensitive seed germination are discussed.
journal_name
J Pineal Resjournal_title
Journal of pineal researchauthors
Tiryaki I,Keles Hdoi
10.1111/j.1600-079X.2011.00947.xsubject
Has Abstractpub_date
2012-04-01 00:00:00pages
332-9issue
3eissn
0742-3098issn
1600-079Xjournal_volume
52pub_type
杂志文章abstract：:Adult female golden hamsters were used to study the effect of short photoperiod on the endogenous opioid system and the effect of pinealectomy on the serum beta-endorphin-like immunoreactivity (beta-end LI) levels. Hamsters were housed under either long photoperiod (14L:10D) or short photoperiod (2L:22D) and the regul...
journal_title：Journal of pineal research
pub_type： 杂志文章
doi：10.1111/j.1600-079x.1984.tb00211.x
更新日期：1984-01-01 00:00:00
abstract：:Earlier studies showed that melatonin reduced the growth of 17-beta-estradiol (E(2))-induced rat pituitary prolactin-secreting tumor (prolactinoma) in vivo. The mechanisms of melatonin's inhibitory action on the prolactin-secreting tumor were further explored by investigating the in vitro effects of melatonin on the g...
journal_title：Journal of pineal research
pub_type： 杂志文章
doi：10.1111/j.1600-079X.2006.00403.x
更新日期：2007-03-01 00:00:00
abstract：:Environmental pollution in the form of particulate matter <2.5 μm (PM2.5 ) is a major risk factor for diseases such as lung cancer, chronic respiratory infections, and major cardiovascular diseases. Our goal was to show that PM2.5 eliciting a proinflammatory response activates the immune-pineal axis, reducing the pine...
journal_title：Journal of pineal research
pub_type： 杂志文章
doi：10.1111/jpi.12636
更新日期：2020-04-01 00:00:00
abstract：:Most contemporary progress in Alzheimer's disease (AD) stems from the study of a 42 43 amino acid peptide. called the amyloid beta protein (Abeta), as the main neuropathologic marker of the disorder. It has been demonstrated that Abeta has neurotoxic properties and that such effects are mediated by free-radicals. Expo...
journal_title：Journal of pineal research
pub_type： 杂志文章
doi：10.1111/j.1600-079x.1999.tb00619.x
更新日期：1999-11-01 00:00:00
abstract：:Pulmonary hypertension (PH) is characterized by elevated pulmonary arterial pressure, which leads to right ventricular (RV) hypertrophy and failure. The pathophysiological mechanisms of PH remain unclear but oxidative stress is believed to contribute to RV dysfunction. Melatonin is a powerful antioxidant and is cardio...
journal_title：Journal of pineal research
pub_type： 杂志文章
doi：10.1111/jpi.12263
更新日期：2015-10-01 00:00:00
abstract：:The presence of melatonin and the enzymes (transcripts and activities) involved in its synthesis, i.e. arylalkylamine N-acetyltransferase (AA-NAT) and hydroxyindole-O-methyltransferase (HIOMT), was investigated in the eggs and early embryos of Japanese quail at Hamburger-Hamilton stages 1-10. Melatonin was present in ...
journal_title：Journal of pineal research
pub_type： 杂志文章
doi：10.1111/j.1600-079X.2007.00421.x
更新日期：2007-04-01 00:00:00
abstract：:A study was carried out to determine the possible influence of melatonin on the proliferation of Kirkman-Robbins hepatoma cells in Syrian hamsters, both in vivo and in vitro. A highly significant inhibition of the proliferation of transplanted hepatoma cells was observed in vivo following melatonin administration (pro...
journal_title：Journal of pineal research
pub_type： 杂志文章
doi：10.1111/j.1600-079x.1992.tb00063.x
更新日期：1992-10-01 00:00:00
abstract：:Day and nighttime melatonin production in the pineal gland was compared in normal and cardiomyopathic (polydystrophic) adult male Syrian hamsters. These strains of hamsters were selected for comparison because the cardiomyopathetic hamster displays a deficient transmembrane Ca(2+)-pump in a number of tissues, and intr...
journal_title：Journal of pineal research
pub_type： 杂志文章
doi：10.1111/j.1600-079x.1991.tb00472.x
更新日期：1991-10-01 00:00:00
abstract：:The effect of melatonin on thrombin-induced [3H]-arachidonic acid (AA) metabolism to cyclooxygenase derivatives was determined in platelets obtained from normal volunteers at 0830 and 2030 h. Percent conversion of radioactive AA was generally greater at 2030 h than at 0830 h for every cyclooxygenase derivative analyze...
journal_title：Journal of pineal research
pub_type： 杂志文章
doi：10.1111/j.1600-079x.1991.tb00465.x
更新日期：1991-10-01 00:00:00
abstract：:The purpose of this study was to determine and compare the light sensitivity of two commercially important, phylogenetically different teleost species in terms of melatonin production. Three series of experiments were performed on both Atlantic salmon and European sea bass. First, a range of light intensities were tes...
journal_title：Journal of pineal research
pub_type： 杂志文章
doi：10.1111/j.1600-079X.2006.00330.x
更新日期：2006-08-01 00:00:00
abstract：:Melatonin, which is contained in certain vegetables, may have an influence on circulatory melatonin concentrations. This study examined the effects of the consumption of vegetables on 6-sulfatoxymelatonin concentrations in morning urine. Ninety-four healthy women aged 24-55 were recruited through a city public health ...
journal_title：Journal of pineal research
pub_type： 杂志文章,随机对照试验
doi：10.1111/j.1600-079X.2007.00549.x
更新日期：2008-08-01 00:00:00
abstract：:Despite state-of-the-art pharmaceutical regimens, continuous improvements in diagnostic techniques as well as refinements in equipment and interventional procedures, many diseases remain refractory to conventional therapies. Recent advances in stem cell (SC) biology have opened an avenue to exploring its therapeutic p...
journal_title：Journal of pineal research
pub_type： 杂志文章,评审
doi：10.1111/jpi.12372
更新日期：2017-03-01 00:00:00
abstract：:Antioxidant activity of a molecule is attributed to various mechanisms such as prevention of chain initiation, binding of transition metal ion catalysts and decomposition of peroxides. This study was aimed at evaluating the metal chelating and hydrogen peroxide (H2O2) scavenging activity of melatonin. The metal chelat...
journal_title：Journal of pineal research
pub_type： 杂志文章
doi：10.1034/j.1600-079x.2003.00042.x
更新日期：2003-05-01 00:00:00
abstract：:We evaluated the antioxidant property of melatonin as it relates to the vasospastic effect of hydrogen peroxide (H2O2) on the human umbilical artery. Helical sections of umbilical arteries were obtained from healthy pregnant women who were delivered between weeks 37 and 39 of gestation. Changes in maximal potassium ch...
journal_title：Journal of pineal research
pub_type： 杂志文章
doi：10.1111/j.1600-079x.1997.tb00318.x
更新日期：1997-04-01 00:00:00
abstract：:Melatonin signaling dysfunction has been associated with the etiology of adolescent idiopathic scoliosis (AIS). Genetic analysis has also associated the occurrence of AIS with the MT2 gene. Thus, we determined whether there is abnormality in the protein expression of melatonin receptors (MT) in AIS osteoblasts. In thi...
journal_title：Journal of pineal research
pub_type： 杂志文章
doi：10.1111/j.1600-079X.2011.00857.x
更新日期：2011-05-01 00:00:00
abstract：:By use of Phaseolus vulgaris-leucoagglutinin as an anterograde in vivo tracer, a direct projection from the dorsal raphe nucleus to the pineal complex of the rat was demonstrated. The nerve fibers extended from the dorsal raphe nucleus rostrally through the mesencephalic periaqueductal grey and entered the deep pineal...
journal_title：Journal of pineal research
pub_type： 杂志文章
doi：10.1111/j.1600-079x.1998.tb00381.x
更新日期：1998-08-01 00:00:00
abstract：:Although there is an increasing evidence that the pineal gland may play a role in human malignancy, the studies on melatonin concentrations in different types of malignant tumors brought about controversial results. However, changes in melatonin concentrations have been observed in some types of human malignant tumors...
journal_title：Journal of pineal research
pub_type： 杂志文章
doi：10.1111/j.1600-079X.2005.00221.x
更新日期：2005-08-01 00:00:00
abstract：:The purpose of this study was to determine and compare the effects of chronic melatonin treatment in vivo on several aspects of prolactin (PRL) cell activity (PRL synthesis, storage, and release) in vitro in male and female Syrian hamsters. Adult male and female hamsters were maintained on long photoperiod and treated...
journal_title：Journal of pineal research
pub_type： 杂志文章
doi：10.1111/j.1600-079x.1989.tb00446.x
更新日期：1989-01-01 00:00:00
abstract：:Abnormal proliferation and motility of retinal pigment epithelial cells leads to proliferative vitreoretinopathy (PVR). Melatonin is a known effective antitumour and anti-invasive agent, but whether it affects the formation and underlying mechanisms of PVR remains unclear. In this study, the results of the MTT assay, ...
journal_title：Journal of pineal research
pub_type： 杂志文章
doi：10.1111/jpi.12615
更新日期：2020-01-01 00:00:00
abstract：:The incidence of chronic obstructive pulmonary disease (COPD) has substantially increased in recent decade. Cigarette smoke (CS) is the most important risk factor in the development of COPD. In this study, we investigated the effects of melatonin on the development of COPD using a CS and lipopolysaccharide (LPS)-induc...
journal_title：Journal of pineal research
pub_type： 杂志文章
doi：10.1111/jpi.12192
更新日期：2015-01-01 00:00:00
abstract：:This study examined the factors that may be involved in altering the function of pineal gland in hypoxic conditions. Adult Wistar rats were subjected to hypoxia and the pineal gland was examined for the mRNA and protein expression of hypoxia-inducible factor-1alpha (HIF-1alpha), vascular endothelial growth factor (VEG...
journal_title：Journal of pineal research
pub_type： 杂志文章
doi：10.1111/j.1600-079X.2007.00424.x
更新日期：2007-04-01 00:00:00
abstract：:N-acetylserotonin methyltransferase (ASMT), the last enzyme in the synthesis of melatonin, catalyzes N-acetylserotonin into melatonin. For the first time, we cloned ASMT from rice through the analysis of recombinant Escherichia coli harboring putative rice O-methyltransferase (OMT) cDNAs. In total, 18 full-length cDNA...
journal_title：Journal of pineal research
pub_type： 杂志文章
doi：10.1111/j.1600-079X.2010.00841.x
更新日期：2011-04-01 00:00:00
abstract：:Melatonin has been identified in primitive photosynthetic bacteria, fungi, plants, and animals including humans. Vegetables, fruits, cereals, wine, and beers all contain melatonin. However, the melatonin content in meats has not been reported previously. Here, for the first time, we report melatonin in meats, eggs, co...
journal_title：Journal of pineal research
pub_type： 杂志文章
doi：10.1111/jpi.12152
更新日期：2014-09-01 00:00:00
abstract：:To examine the role of melatonin in pathological hyperprolactinemia we compared untreated young females (N = 5) with hyperprolactinemic amenorrhea owing to pituitary microadenoma to healthy female controls (N = 6). Serum samples for melatonin, prolactin, and luteinizing hormone (LH) concentrations were obtained every ...
journal_title：Journal of pineal research
pub_type： 杂志文章
doi：10.1111/j.1600-079x.1996.tb00242.x
更新日期：1996-03-01 00:00:00
abstract：:Female Syrian hamsters were kept in a light (14:10 h light:dark cycle, lights on 0600 h)- and temperature (22 or 30 degrees C)-controlled room; some groups were treated with an afternoon s.c. injection of melatonin (6.25, 12.5, or 25 micrograms/day) for 11 or 14 weeks. The melatonin-induced suppression of the reproduc...
journal_title：Journal of pineal research
pub_type： 杂志文章
doi：10.1111/j.1600-079x.1988.tb00656.x
更新日期：1988-01-01 00:00:00
abstract：:The aim was to examine the effect of perioperative melatonin treatment on clinical cardiac morbidity and markers of myocardial ischemia in patients undergoing elective surgery for abdominal aortic aneurism. Reperfusion injury results in increased cardiac morbidity in patients undergoing surgery for abdominal aortic an...
journal_title：Journal of pineal research
pub_type： 杂志文章,随机对照试验
doi：10.1111/jpi.12138
更新日期：2014-08-01 00:00:00
abstract：:Melatonin, the main secretory product of the pineal gland, has been shown to be potentially effective in prevention of numerous types of neurodegenerative disorders in which free radical processes are involved. Homocysteine (Hcy), an independent risk factor for atherosclerosis, undergoes auto-oxidation and generates r...
journal_title：Journal of pineal research
pub_type： 杂志文章
doi：10.1034/j.1600-079x.2003.02939.x
更新日期：2003-01-01 00:00:00
abstract：:The purpose of this study was to define the peripubertal changes in prolactin (PRL) synthesis in blind-anosmic female rats. To do this prepubertal female rats were either rendered blind-anosmic (BA) or blind-anosmic-pinealectomized (BAP) or left intact (INT). Half the animals were killed after 1 wk (before puberty) wh...
journal_title：Journal of pineal research
pub_type： 杂志文章
doi：10.1111/j.1600-079x.1984.tb00217.x
更新日期：1984-01-01 00:00:00
abstract：:Improved survival because of advances in neonatal care has resulted in an increased number of infants at risk for chronic lung disease. Even though the etiology of lung injury is multifactorial, recent animal and clinical data indicate that pulmonary damage depends in large part on the ventilatory strategies used. Ven...
journal_title：Journal of pineal research
pub_type： 杂志文章
doi：10.1111/j.1600-079X.2005.00251.x
更新日期：2005-10-01 00:00:00
abstract：:Nasopharyngeal carcinoma (NPC), a disease common in the South-East Asian population, has high lymph node metastatic ability. Melatonin, an endogenously produced substance present in animals, plants, fungi, and bacteria, has oncostatic activity via several mechanisms. The molecular mechanisms involved in melatonin-medi...
journal_title：Journal of pineal research
pub_type： 杂志文章
doi：10.1111/jpi.12365
更新日期：2016-11-01 00:00:00
