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| 1 | Physiological responses of Brassica napus to fulvic acid under water stress: Chlorophyll a fluorescence and antioxidant enzyme activity显示文摘The ameliorative effect of fulvic acid(0, 300, and 600 mg L-1) on photosystem II and antioxidant enzyme activity of the rapeseed(Brassica napus L.) plant under water stress(60, 100, and 140 mm evaporation from class A pan) was studied using split plots in a randomized complete block design with three replications. Results indicated that application of fulvic acid(FA) improved the maximum quantum efficiency of PSII(Fv/Fm)and performance index(PI) of plants under both well-watered and limited-water conditions. The time span from Foto Fmand the energy necessary for the closure of all reaction centers was significantly increased, but the size of the plastoquinone pool was reduced with increasing water stress levels. Plants treated with FA had higher peroxidase and catalase activities under all irrigation conditions. Activities of ascorbate peroxidase and superoxide dismutase in plants increased with increasing water stress. Malondialdehyde increased under severe water stress, but application of FA significantly decreased lipid peroxidation. Production of reactive oxygen species(ROS) is a common phenomenon in plants under stress. Under this condition, the balance between the production of ROS and the quenching activity of antioxidants is upset, often resulting in oxidative damage. In this study, application of FA significantly increased fluorescence of chlorophyll a, inhibiting ROS production and enhancing antioxidant enzymes activity that destroyed ROS. Thus, ROS in plant cells was reduced under water stress by application of FA and consequently lipid peroxidation was reduced. | Ramin Lotfi Mohammad Pessarakli Puriya Gharavi-Kouchebagh Hossein Khoshvaghti | 2015 | The Crop Journal2015，3，5： | 16 |
| 2 | Dry matter yield and nitrogenl5, Na^+ , Cl^- and K^+ content of tomatoes under sodium chloride stress显示文摘 | Al-Rawahy S A Stroehlein J L Pessarakli M | 1992 | Journal of Plant Nutrition1992，15，3： | 1 |
| 3 | Salinity tolerance and salt gland excretion efficiency of bermudagrass turf cultivars显示文摘 | Marcum K B Pessarakli M | 2006 | Crop Sci- ence2006，46，： | 1 |
| 4 | Nitrogen-15 uptake by eggplant under sodium chloride stress显示文摘 | Pessarakli M Tucker TC | 1988 | Soil Sci Soc Am J1988，52，： | 1 |
| 5 | Effect of salt stress on dry matter production and nitrogen uptake by tomatoes显示文摘 | Rawahy S A Stroehlein J L Pessarakli M | 1990 | Joural of Plant Nutrition and Soil Science1990，13，5： | 1 |
| 6 | Salinity Tolerance and Salt Gland Excretion Efficiency of Bermudagrass Turf Cultivars显示文摘 | Marcum K B Pessarakli M | 2006 | Crop Science2006，46，6： | 1 |
| 7 | Uptake of SN by cotton under salt stress显示文摘 | PESSARAKLI M Tucker T C | 1985 | Soil Science Society of America Journal1985，49，： | 1 |
| 8 | Relative salinity tolerance of 21 turf-type desert saltgrasses compared to bermuda grass显示文摘 | Root and verdure Marcum K B Pessarakli M Kopec D M | 2005 | Hortscience2005，40，3： | 1 |
| 9 | Dry matter yield, nitrogen absorption and water uptake by sweet corn under salt stress显示文摘 | Pessarakli M Huber J T Tucker T C | 1989 | Plant Nut1989，12，3： | 1 |
| 10 | Growth responses of bermudagrass and seashore paspalum under various levels of sodium chlo ride stress显示文摘 | Pessarakli M Touchane H | 2006 | Journal of Food Agriculture and Environment2006，4，34： | 1 |
| 11 | Salinity tolerance and salt gland excretion efficiency of bermudagrass turf cuhivars 显示文摘 | Marcum K B Pessarakli M | 2006 | Crop Science2006，46，： | 1 |
| 12 | Growth responses of herrnudagrass and seashore paspalum under various levels of sodium chlo- ride stress显示文摘 | Pessarakli M Touchane H | 2006 | Journal of Food Agriculture and Environment2006，4，34： | 1 |
| 13 | Relative salinity tolerance of 21 turf-type desert saltgrasses compared to bermudagrass显示文摘 | Marcum K B Pessarakli M Kopec D M | 2005 | Hortscience2005，40，3： | 1 |
| 14 | Effect of salt stress on drymatter production and nitrogen uptack by tomatoes显示文摘 | Ramaly A L Stroehlein J L Pessarakli M | 1990 | Journal ofPlant Nutrition1990，13，5： | 1 |
| 15 | Growth responses of bermudagrass and seashore paspalum under various levels of sodium chlo- ride stress显示文摘 | Pessarakli M Touchane H | 2006 | Journal of Food Agriculture and Environment2006，4，34： | 1 |
| 16 | Salinity tolerance and salt gland excretion efficiency of bermudagrass turf culti-vars显示文摘 | Marcum K B Pessarakli M | 2006 | Crop Science2006，46，： | 1 |
| 17 | Relative salinity tolerance of 21 turf-type desert saltgrasses compared to bermudagrass显示文摘 | Marcum K B Pessarakli M Kopec D M | 2005 | Hort Science2005，40，3： | 1 |
| 18 | Effects of temperature and salinity on germination of non-pelleted and pelleted guayule ( Parthenium argentatum A. Gray) seeds显示文摘 | Paul L. Sanchez Mei-kuang Chen Mohammad Pessarakli Hank J. Hill Michael A. Gore Matthew A. Jenks | 2014 | Industrial Crops & Products2014，，： | 1 |
| 19 | Reactive Oxygen species-mediated functions in plants under environmental stresses显示文摘 | Heidari B Pessarakli M Dadkhodaie A | 2012 | J Agric Sci Tech2012，，： | 1 |
| 20 | Establishment of three warm-season gra、sses under salinity stress显示文摘 | Pessarakli M Kopec D M | 2008 | Acta Horticultu-rae2008，783，： | 1 |
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