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Author |
Margot, J.-L. |
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Title |
Insufficient Evidence of Purported Lunar Effect on Pollination in Ephedra |
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Journal Article |
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Year  |
2015 |
Publication |
Journal of Biological Rhythms |
Abbreviated Journal |
J Biol Rhythms |
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Volume |
30 |
Issue |
5 |
Pages |
454-456 |
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Keywords |
Animals; Plants; Moonlight |
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Abstract |
It has been suggested that the timing of pollination in Ephedra foeminea coincides with the full moon in July. The implication is that the plant can detect the full moon through light or gravity and that this trait is an evolutionary adaptation that aids the navigation by pollinating insects. Here we show that there are insufficient data to make such a claim, and we predict that pollinations of E. foeminea do not in general coincide with the full moon. |
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Department of Earth, Planetary, and Space Sciences, University of California, Los Angeles, California, USADepartment of Physics and Astronomy, University of California, Los Angeles, California, USA jlm@astro.ucla.edu |
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0748-7304 |
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PMID:26316347 |
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no |
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Call Number |
LoNNe @ kyba @ |
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1557 |
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Author |
Tavhare, S.D.; Nishteswar, K.; Shukla, V.J. |
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Title |
Influence of lunar cycles on growth of Ashwagandha (Withania somnifera [L.] Dunal) |
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Journal Article |
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Year |
2015 |
Publication |
Ayu |
Abbreviated Journal |
Ayu |
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Volume |
36 |
Issue |
3 |
Pages |
258-264 |
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Keywords |
Plants; Moonlight |
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Abstract |
INTRODUCTION: Ayurvedic classics have advocated to collect the medicinal plants according to part used and seasons in order to get desired pharmacological action and therapeutic benefits. The logic behind this principle is being validated by recent researches. AIM: To analyze the influence of lunar cycles on growth of Ashwagandha in Shishira and Greeshma Ritu (winter and summer season). MATERIALS AND METHODS: Fourteen small crops of Ashwagandha of average size 10 cm were collected on October 7, 2013, from institute campus and then replantation was done at Charaka Herbal Garden, Gujarat Ayurved University, Jamnagar in an area of 60 cm x 60 cm (l x b). No fertilizers or pesticides were used. The plants were watered daily and plants were uprooted as per lunar cycles for analysis. Eight samples were collected and observed during Shishira and Greeshma season on Pournima (full moon) and Amavasya (new moon) days. The measurements were taken thrice and average values were taken into consideration for study purpose. The variations in morphological characteristics such as length, breadth, weight, and number of roots and twigs were studied through statistical procedure of principle component analysis, which makes interpretation of all possible related variables. RESULTS: Root weight (RW), pith diameter (PD) and internodal distance (ID) were found to be increased on full moon days as compared to new moon days. The maximum RW was observed during Greeshma Aashadha Pournima. CONCLUSION: The study has shown a definite influence of lunar cycles on the growth of the plant parts assessed by RW, PD, and ID that have found to be increased on full moon days as compared to new moon days. |
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Department of Pharmaceutical Chemistry Laboratory, Institute for Post Graduate Teaching and Research Ayurveda, Gujarat Ayurved University, Jamnagar, Gujarat, India |
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0974-8520 |
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PMID:27313411; PMCID:PMC4895751 |
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LoNNe @ kyba @ |
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1559 |
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Macgregor, C.J.; Pocock, M.J.O.; Fox, R.; Evans, D.M. |
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Title |
Pollination by nocturnal Lepidoptera, and the effects of light pollution: a review: Moth pollination and light pollution |
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Journal Article |
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Year |
2014 |
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Ecological Entomology |
Abbreviated Journal |
Ecol Entomol |
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40 |
Issue |
3 |
Pages |
187–198 |
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Keywords |
Ecology; Agro-ecosystems; artificial night lighting; ecological networks; ecosystem services; flowering plants; food-webs; moths; population declines; plants; insects; pollination |
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Abstract |
1. Moths (Lepidoptera) are the major nocturnal pollinators of flowers. However, their importance and contribution to the provision of pollination ecosystem services may have been under-appreciated. Evidence was identified that moths are important pollinators of a diverse range of plant species in diverse ecosystems across the world.
2. Moth populations are known to be undergoing significant declines in several European countries. Among the potential drivers of this decline is increasing light pollution. The known and possible effects of artificial night lighting upon moths were reviewed, and suggest how artificial night lighting might in turn affect the provision of pollination by moths. The need for studies of the effects of artificial night lighting upon whole communities of moths was highlighted.
3. An ecological network approach is one valuable method to consider the effects of artificial night lighting upon the provision of pollination by moths, as it provides useful insights into ecosystem functioning and stability, and may help elucidate the indirect effects of artificial light upon communities of moths and the plants they pollinate.
4. It was concluded that nocturnal pollination is an ecosystem process that may potentially be disrupted by increasing light pollution, although the nature of this disruption remains to be tested. |
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School of Biological, Biomedical and Environmental Sciences, University of Hull, Hull, U.K. |
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Wiley |
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English |
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0307-6946 |
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LoNNe @ christopher.kyba @; IDA @ john @ |
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1084 |
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Author |
Nelson, J.A.; Bugbee, B. |
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Title |
Economic analysis of greenhouse lighting: light emitting diodes vs. high intensity discharge fixtures |
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Journal Article |
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Year |
2014 |
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PloS one |
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PLoS One |
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Volume |
9 |
Issue |
6 |
Pages |
e99010 |
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Keywords |
Plants |
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Abstract |
Lighting technologies for plant growth are improving rapidly, providing numerous options for supplemental lighting in greenhouses. Here we report the photosynthetic (400-700 nm) photon efficiency and photon distribution pattern of two double-ended HPS fixtures, five mogul-base HPS fixtures, ten LED fixtures, three ceramic metal halide fixtures, and two fluorescent fixtures. The two most efficient LED and the two most efficient double-ended HPS fixtures had nearly identical efficiencies at 1.66 to 1.70 micromoles per joule. These four fixtures represent a dramatic improvement over the 1.02 micromoles per joule efficiency of the mogul-base HPS fixtures that are in common use. The best ceramic metal halide and fluorescent fixtures had efficiencies of 1.46 and 0.95 micromoles per joule, respectively. We also calculated the initial capital cost of fixtures per photon delivered and determined that LED fixtures cost five to ten times more than HPS fixtures. The five-year electric plus fixture cost per mole of photons is thus 2.3 times higher for LED fixtures, due to high capital costs. Compared to electric costs, our analysis indicates that the long-term maintenance costs are small for both technologies. If widely spaced benches are a necessary part of a production system, the unique ability of LED fixtures to efficiently focus photons on specific areas can be used to improve the photon capture by plant canopies. Our analysis demonstrates, however, that the cost per photon delivered is higher in these systems, regardless of fixture category. The lowest lighting system costs are realized when an efficient fixture is coupled with effective canopy photon capture. |
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Crop Physiology Laboratory, Department of Plant Soils and Climate, Utah State University, Logan, Utah, United States of America |
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1932-6203 |
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PMID:24905835; PMCID:PMC4048233 |
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no |
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Call Number |
GFZ @ kyba @ |
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2233 |
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Author |
Chaves, I.; Pokorny, R.; Byrdin, M.; Hoang, N.; Ritz, T.; Brettel, K.; Essen, L.-O.; van der Horst, G.T.J.; Batschauer, A.; Ahmad, M. |
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Title |
The cryptochromes: blue light photoreceptors in plants and animals |
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Journal Article |
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Year |
2011 |
Publication |
Annual Review of Plant Biology |
Abbreviated Journal |
Annu Rev Plant Biol |
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Volume |
62 |
Issue |
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335-364 |
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Keywords |
Adenosine Triphosphate/metabolism; Animals; Cryptochromes/chemistry/classification/*physiology; DNA Repair; Deoxyribodipyrimidine Photo-Lyase/chemistry/classification/physiology; Homing Behavior; Insects/physiology; *Light Signal Transduction; Magnetics; Mice; Oxidation-Reduction; Phosphorylation/physiology; Plants/*metabolism; blue light |
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Cryptochromes are flavoprotein photoreceptors first identified in Arabidopsis thaliana, where they play key roles in growth and development. Subsequently identified in prokaryotes, archaea, and many eukaryotes, cryptochromes function in the animal circadian clock and are proposed as magnetoreceptors in migratory birds. Cryptochromes are closely structurally related to photolyases, evolutionarily ancient flavoproteins that catalyze light-dependent DNA repair. Here, we review the structural, photochemical, and molecular properties of cry-DASH, plant, and animal cryptochromes in relation to biological signaling mechanisms and uncover common features that may contribute to better understanding the function of cryptochromes in diverse systems including in man. |
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Department of Genetics, Erasmus University Medical Center, 3000 CA Rotterdam, The Netherlands. i.chaves@erasmusmc.nl |
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English |
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Series Volume |
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ISSN |
1543-5008 |
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Notes |
PMID:21526969 |
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Call Number |
IDA @ john @ |
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341 |
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