The role of proline-associated pentose phosphate pathway in cool-season turfgrasses after UV-B exposure |
| |
| Institution: | 1. Department of Plant, Soil, and Insect Sciences, Stockbridge Hall, University of Massachusetts, Amherst, MA 01003, USA;2. Department of Food Sciences, Chenoweth Lab, University of Massachusetts, Amherst, MA 01003, USA;3. Department of Food and Nutrition, Hannam University, Daejeon 305811, South Korea;1. Department of Life Sciences, University of Trieste, Via L. Giorgieri 10, 34127, Trieste, Italy;2. Department of Agriculture, Food and Environment, University of Pisa, Via Del Borghetto 80, 56124, Pisa, Italy;3. CIRSEC, Centre for Climatic Change Impact, University of Pisa, Via Del Borghetto 80, 56124, Pisa, Italy;4. Via Mazzini 2, 10066, Torre Pellice, Turin, Italy;1. Graduate School of Integrated Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan;2. Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan;3. Graduate School of Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan;1. CIRAD, UMR AGAP, Avenue Agropolis, TA A-75/02, 34398 Montpellier cedex 5, France;2. IVIA, Ctra. Moncada-Náquera Km 5, 46113 Moncada, Valencia, Spain;3. INAT, 43, Avenue Charles Nicolle 1082, Tunis, Mahrajène, Tunisia;1. Department of Environmental Biology, Sapienza University of Rome, Piazzale Aldo Moro, 5, 00185 Rome, Italy;2. Bioenergetics Laboratory, University of Geneva, CH-1254 Jussy, Geneva, Switzerland;3. Department of Agri-Food Production and Environmental Science (DISPAA), Section of Soil and Plant Science, University of Florence, Piazzale delle Cascine 28, 50144 Firenze, Italy;1. Graduate School of Integrated Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan;2. Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan;3. Graduate School of Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan;1. Centre de Coopération Internationale en Recherche Agronomique pour le Développement (CIRAD), UMR AGAP, Station de Roujol, 97170 Petit Bourg, Guadeloupe, France;2. IVIA, Ctra. Moncada-Náquera, Km 5, 46113 Moncada, Valencia, Spain;3. INAT, 43, Avenue Charles Nicolle, 1082 Tunis, Mahrajène, Tunisia;4. INRA, UMR AGAP Corse, 20230 San Giuliano, France |
| |
| Abstract: | Physiological adjustments of cool-season turfgrasses were investigated to determine the role of proline-associated pentose phosphate pathway for phenolic biosynthesis and stimulation of antioxidant response system following UV-B exposure. Creeping bentgrass, Kentucky bluegrass, tall fescue, and perennial ryegrass plugs were subjected to artificial UV-B exposure (biologically effective UVBBE radiation 8 kJ m?2 d?1.) for one week with 10-h photoperiod. Significant accumulation of phenolics and stimulation of antioxidant enzyme activity was observed in all investigated cool-season turfgrasses after UV-B exposure and this induction corroborated with higher glucose-6-phosphate dehydrogenase activity and high accumulation of proline. Guaiacol peroxidase activity also increased in all investigated cool-season turfgrass species after UV-B exposure. In this study, the shift of carbon flux from glycolysis to pentose phosphate pathway following UV-B exposure and as a result of that, the higher accumulation of phenolics and stimulation of antioxidant response system provides an insight to understand a probable defense mechanism of cool-season turfgrasses against UV stress. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
