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| Web URL(s): | https://scisoc.confex.com/crops/2015am/webprogram/Paper95240.html
Last checked: 11/06/2015 |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Petrella, Dominic;
Gardner, David S.;
Blakeslee, Joshua;
Metzger, James;
Danneberger, T. Karl |
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| Author Affiliation: | Gardner, Metzger, and Danneberger: Departmentment of Horticulture and Crop Science; Petrella: The Ohio State University, Columbus; Blakeslee; Department of Horticulture and Crop Science, The Ohio State University, Wooster, OH |
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| Title: | The physiological response of rough bluegrass (Poa trivialis L.) to red and blue light |
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| Section: | C05 turfgrass science
Other records with the "C05 turfgrass science" Section
Graduate student oral competition: Turfgrass breeding and genetics, stress tolerance
Other records with the "Graduate student oral competition: Turfgrass breeding and genetics, stress tolerance" Section
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| Meeting Info.: | Minneapolis, Minnesota: November 15-18, 2015 |
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| Source: | ASA, CSSA and SSSA International Annual Meetings. 2015, p. 95240. |
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| Publishing Information: | [Milwaukee, Wisconsin]: [American Society of Agronomy and the Entomological Society of America] |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Anthocyanins; Biosynthesis; Blue light; Color enhancement; Cultivar evaluation; Cultivar identification; Growth studies; Light relations; Light-emitting diodes; Poa trivialis; Red light
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| Abstract/Contents: | "One of the identifying features of rough bluegrass (Poa trivialis L.) is the presence of purple leaf and sheath tissue. Anthocyanins, the pigments responsible for this purple color, are in demand for their health promoting properties as well as for use as natural food colorants. Turfgrasses, like rough bluegrass, provide an alternative source for anthocyanins and other flavonoid compounds in that their tissue can be harvested multiple times per month without damaging the entire plant. Many environmental factors can elicit anthocyanin biosynthesis including light, water stress, temperature stress, and nutrient stress; however, the key factor(s) have still yet to be determined for this species. Both red and blue light are known to have roles in anthocyanin biosynthesis; on the other hand, some species only respond to one or the other wavelengths or combinations of the two. The purpose of this research was to determine what wavelength of light, red or blue, stimulates anthocyanin biosynthesis in rough bluegrass. Historically blue light has been shown to induce anthocyanin synthesis in many species; therefore, a dose response curve for blue light was first generated to determine an appropriate quantum flux. Results showed that blue light intensities greater than 200 μmol m-2s-1 produced anthocyanin pigmentation. LED arrays were then constructed to produce blue light gradients ranging from 0 - 100% blue light supplemented with red in order to determine if co-action existed. Both for seedlings and mature plants, the addition of red light to blue resulted in anthocyanin production when light intensities were set below 200 μmol m-2s-1; however, red light alone did not produce pigmentation. These results indicate that blue light is sufficient for anthocyanin synthesis, red light is not sufficient, but the combination of the two may result in co-action producing pigmentation at lower light intensities." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only!
"85-10" |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Petrella, D., D. S. Gardner, J. Blakeslee, J. Metzger, and T. K. Danneberger. 2015. The physiological response of rough bluegrass (Poa trivialis L.) to red and blue light. Agron. Abr. p. 95240. |
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Last checked: 11/06/2015 |
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