Polyamines-mediated regulation of enzymatic antioxidative response to excess soil moisture in soybean (Glycine max L.)
| dc.contributor.author | Sidhu, Gagandip | |
| dc.contributor.examiningcommittee | Renault, Sylvie (Biological Sciences) Daayf, Fouad (Plant Science) | en_US |
| dc.contributor.supervisor | Ayele, Belay Teshome (Plant Science) | en_US |
| dc.date.accessioned | 2017-02-16T15:44:45Z | |
| dc.date.available | 2017-02-16T15:44:45Z | |
| dc.date.issued | 2017 | |
| dc.degree.discipline | Plant Science | en_US |
| dc.degree.level | Master of Science (M.Sc.) | en_US |
| dc.description.abstract | Excess soil moisture creates an oxygen deficient growth environment that adversely affects plant growth and has led to greater agricultural losses than any other abiotic stress factor affecting the Canadian prairies, especially Manitoba. The hypoxic environment limits cellular respiration in root tissues and disrupts the antioxidative systems of plants, resulting in accumulation of reactive oxygen species which react with and damage essential cellular components. The antioxidative capacity of plants and therefore their tolerance to stress conditions such as excess moisture can be improved by treatments with growth regulators such as polyamines, which play important roles in mediating plant response to their environment. This thesis investigated the role of treatments with polyamines in improving seedling growth and enzymatic antioxidant capacity in the tissues of seedlings and young vegetative soybean plants under excess soil moisture conditions. The results indicate that treatment with polyamines can improve the growth of excess moisture-stressed seedlings and this is associated with an enhanced antioxidative response with improved expression of antioxidative genes and activity of the corresponding enzymes. Furthermore, the results of this study indicate that polyamine treatments also increase the enzymatic antioxidant capacity in the leaf tissues of young soybean plants exposed to excess moisture. | en_US |
| dc.description.note | February 2017 | en_US |
| dc.identifier.uri | http://hdl.handle.net/1993/32138 | |
| dc.language.iso | eng | en_US |
| dc.rights | open access | en_US |
| dc.subject | Polyamines, Excess soil moisture, Soybean, Manitoba, Antioxidative, ROS, Seedlings, Enzymatic, SOD, APX, CAT, GR, Flooding, Gene expression, Enzyme activity | en_US |
| dc.title | Polyamines-mediated regulation of enzymatic antioxidative response to excess soil moisture in soybean (Glycine max L.) | en_US |
| dc.type | master thesis | en_US |