UV-B Radiation Impacts Shoot Tissue Pigment Composition in Allium fistulosum L. Cultigens
Plants from the Allium genus are valued worldwide for culinary flavor and medicinal attributes. In this study, 16 cultigens of bunching onion (Allium fistulosum L.) were grown in a glasshouse under filtered UV radiation (control) or supplemental UV-B radiation [7.0 μmol·m−2·s−2 (2.68 W·m−2)] to dete...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2013-01-01
|
| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2013/513867 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849693176511594496 |
|---|---|
| author | Kristin R. Abney Dean A. Kopsell Carl E. Sams Svetlana Zivanovic David E. Kopsell |
| author_facet | Kristin R. Abney Dean A. Kopsell Carl E. Sams Svetlana Zivanovic David E. Kopsell |
| author_sort | Kristin R. Abney |
| collection | DOAJ |
| description | Plants from the Allium genus are valued worldwide for culinary flavor and medicinal attributes. In this study, 16 cultigens of bunching onion (Allium fistulosum L.) were grown in a glasshouse under filtered UV radiation (control) or supplemental UV-B radiation [7.0 μmol·m−2·s−2 (2.68 W·m−2)] to determine impacts on growth, physiological parameters, and nutritional quality. Supplemental UV-B radiation influenced shoot tissue carotenoid concentrations in some, but not all, of the bunching onions. Xanthophyll carotenoid pigments lutein and β-carotene and chlorophylls a and b in shoot tissues differed between UV-B radiation treatments and among cultigens. Cultigen “Pesoenyj” responded to supplemental UV-B radiation with increases in the ratio of zeaxanthin + antheraxanthin to zeaxanthin + antheraxanthin + violaxanthin, which may indicate a flux in the xanthophyll carotenoids towards deepoxydation, commonly found under high irradiance stress. Increases in carotenoid concentrations would be expected to increase crop nutritional values. |
| format | Article |
| id | doaj-art-9086a5407e2b40bdb667a36fdf8e933f |
| institution | DOAJ |
| issn | 1537-744X |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-9086a5407e2b40bdb667a36fdf8e933f2025-08-20T03:20:30ZengWileyThe Scientific World Journal1537-744X2013-01-01201310.1155/2013/513867513867UV-B Radiation Impacts Shoot Tissue Pigment Composition in Allium fistulosum L. CultigensKristin R. Abney0Dean A. Kopsell1Carl E. Sams2Svetlana Zivanovic3David E. Kopsell4Plant Sciences Department, The University of Tennessee, 2431 Joe Johnson Drive, Knoxville, TN 37996, USAPlant Sciences Department, The University of Tennessee, 2431 Joe Johnson Drive, Knoxville, TN 37996, USAPlant Sciences Department, The University of Tennessee, 2431 Joe Johnson Drive, Knoxville, TN 37996, USADepartment of Food Science and Technology, The University of Tennessee, 2605 River Drive, Knoxville, TN 37996, USADepartment of Agriculture, Illinois State University, Normal, IL 61790, USAPlants from the Allium genus are valued worldwide for culinary flavor and medicinal attributes. In this study, 16 cultigens of bunching onion (Allium fistulosum L.) were grown in a glasshouse under filtered UV radiation (control) or supplemental UV-B radiation [7.0 μmol·m−2·s−2 (2.68 W·m−2)] to determine impacts on growth, physiological parameters, and nutritional quality. Supplemental UV-B radiation influenced shoot tissue carotenoid concentrations in some, but not all, of the bunching onions. Xanthophyll carotenoid pigments lutein and β-carotene and chlorophylls a and b in shoot tissues differed between UV-B radiation treatments and among cultigens. Cultigen “Pesoenyj” responded to supplemental UV-B radiation with increases in the ratio of zeaxanthin + antheraxanthin to zeaxanthin + antheraxanthin + violaxanthin, which may indicate a flux in the xanthophyll carotenoids towards deepoxydation, commonly found under high irradiance stress. Increases in carotenoid concentrations would be expected to increase crop nutritional values.http://dx.doi.org/10.1155/2013/513867 |
| spellingShingle | Kristin R. Abney Dean A. Kopsell Carl E. Sams Svetlana Zivanovic David E. Kopsell UV-B Radiation Impacts Shoot Tissue Pigment Composition in Allium fistulosum L. Cultigens The Scientific World Journal |
| title | UV-B Radiation Impacts Shoot Tissue Pigment Composition in Allium fistulosum L. Cultigens |
| title_full | UV-B Radiation Impacts Shoot Tissue Pigment Composition in Allium fistulosum L. Cultigens |
| title_fullStr | UV-B Radiation Impacts Shoot Tissue Pigment Composition in Allium fistulosum L. Cultigens |
| title_full_unstemmed | UV-B Radiation Impacts Shoot Tissue Pigment Composition in Allium fistulosum L. Cultigens |
| title_short | UV-B Radiation Impacts Shoot Tissue Pigment Composition in Allium fistulosum L. Cultigens |
| title_sort | uv b radiation impacts shoot tissue pigment composition in allium fistulosum l cultigens |
| url | http://dx.doi.org/10.1155/2013/513867 |
| work_keys_str_mv | AT kristinrabney uvbradiationimpactsshoottissuepigmentcompositioninalliumfistulosumlcultigens AT deanakopsell uvbradiationimpactsshoottissuepigmentcompositioninalliumfistulosumlcultigens AT carlesams uvbradiationimpactsshoottissuepigmentcompositioninalliumfistulosumlcultigens AT svetlanazivanovic uvbradiationimpactsshoottissuepigmentcompositioninalliumfistulosumlcultigens AT davidekopsell uvbradiationimpactsshoottissuepigmentcompositioninalliumfistulosumlcultigens |