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Author Kwak, M.J.; Lee, S.H.; Khaine, I.; Je, S.M.; Lee, T.Y.; You, H.N.; Lee, H.K.; Jang, J.H.; Kim, I.; Woo, S.Y.
Title Stomatal movements depend on interactions between external night light cue and internal signals activated by rhythmic starch turnover and abscisic acid (ABA) levels at dawn and dusk Type Journal Article
Year 2017 Publication (up) Acta Physiologiae Plantarum Abbreviated Journal Acta Physiol Plant
Volume 39 Issue 8 Pages
Keywords Plants
Abstract Yellow poplar (Liriodendron tulipifera L.) is a widespread hardwood tree of great ecological and economic value. Light pollution caused by excessive and indiscriminate exposure to artificial night light has emerged as a new risk factor due to its adverse effects related to energy waste, sleep disorders, anthropogenic habitat disturbance, and perceptual disorder of daily and seasonal rhythms in wildlife. However, it remains unknown how associations between artificial night light and stomatal behaviors controlled by internal signals are established. After continuous exposure to artificial light at night over 3 years, leaves in the experimental set-up were measured for stomatal movements, starch turnover, endogenous abscisic acid (ABA) levels, and chloroplast ultrastructure during the growing season. Yellow poplar showed dynamic changes in stomatal movement, starch turnover, and endogenous ABA levels in response to day/artificial night light cycle, resulting in reduction of circadian phase-shifting capacity at both dusk and dawn and normal chloroplast development as compared with natural night. Nighttime light exposure may act as a major factor for disorder of circadian and circannual rhythms as well as physiological and ultrastructural repressor in plants, via a modification of the perceived photoperiod. Our study suggests that these dynamic responses can provide advantageous insights that complement the current knowledge on light pollution.
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ISSN 0137-5881 ISBN Medium
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Notes Approved no
Call Number LoNNe @ kyba @ Serial 1682
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Author Matzke, E. B.
Title The Effect of Street Lights in Delaying Leaf-Fall in Certain Trees Type Journal Article
Year 1936 Publication (up) American Journal of Botany Abbreviated Journal Amer. J. of Botany
Volume 23 Issue 6 Pages 446-452
Keywords Plants; trees; Carolina poplar; Populus canadensis; London plane; Platanus acerifolia; sycamore; Platanus occidentalis; crack willow; Salix fragilis; New York; New York City
Abstract Street lights in the City of New York cause a retention of the leaves of certain trees: Carolina poplar (Populus canadensis), London plane (Platanus acerifolia), sycamore (Platanus occidentalis), and crack willow (Salix fragilis). Illuminated portions of a tree retain their leaves; shaded portions of the same tree do not. One side of a tree, or the lower part, may thus have numerous leaves, while the other side, and the upper part, may be entirely devoid of foliage. A relatively weak light, at a distance of as much as 45 feet from the tip of the nearest branch, may cause retention of numerous leaves. Light intensity as low as 1 foot candle, or less, may be effective. Some leaves may be retained at least a month, others more than that, beyond the normal season. The orientation of the light with respect to the tree – i.e., north, east, south, and west – is not significant. In Populus canadensis all of the leaves ultimately fall, abscission apparently taking place at the base of the petiole. In Platanus acerifolia and Platanus occidentalis some of the leaves are retained until killed by low temperature; then some of them break off above the base of the petiole. Leaves of the Populus and Platanus species discussed remain green unusually long when receiving additional illumination. Leaves of these same trees do not emerge from the buds earlier in the spring as a result of the additional illumination.
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Publisher JSTOR Place of Publication Editor
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ISSN 0002-9122 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number IDA @ john @ Serial 1394
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Author Adams, J.
Title Some Further Experiments On The Relation Of Light To Growth Type Journal Article
Year 1925 Publication (up) American Journal of Botany Abbreviated Journal American Journal of Botany
Volume 12 Issue 7 Pages 398-412
Keywords Plants
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ISSN 0002-9122 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number GFZ @ kyba @ Serial 2393
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Author Vänninen, I.; Pinto, D.M.; Nissinen, A.I.; Johansen, N.S.; Shipp, L.
Title In the light of new greenhouse technologies: 1. Plant-mediated effects of artificial lighting on arthropods and tritrophic interactions Type Journal Article
Year 2010 Publication (up) Annals of Applied Biology Abbreviated Journal
Volume 157 Issue 3 Pages 393-414
Keywords Plants
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ISSN 0003-4746 ISBN Medium
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Notes Approved no
Call Number LoNNe @ kagoburian @ Serial 658
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Author Adams, J.
Title Duration of Light and Growth Type Journal Article
Year 1924 Publication (up) Annals of Botany Abbreviated Journal
Volume 38 Issue 151 Pages 509-523
Keywords Plants
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Notes Approved no
Call Number GFZ @ kyba @ Serial 2391
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