Chapter 1 Developmental and hormonal control of leaf senescence
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منابع مشابه
The role of hormones in the aging of plants - a mini-review.
BACKGROUND In plants, the final stage of organ development is termed senescence. This is a deterioration process that leads to the decay of tissues and organs, and that, in the case of annual, biennial and/or monocarpic plants, leads to the death of the plant itself. The main function of leaf senescence is nutrient recycle and, since this confers an adaptive advantage, it can be considered an e...
متن کاملMolecular genetic control of leaf lifespan in plants - A review
Leaf senescence constitutes the last stage of leaf development in plants and proceeds through a highly regulated program in order to redistribution of micro- and macro-nutrients from the senescing leaves to the developing/growing plant organs. Initiation and progression of leaf senescence is accompanied by massive sequential alterations at various levels of leaf biology including leaf morpholog...
متن کاملبررسی اثر تنش کم آبی بر نحوه فعالیت آنزیمهای ضد اکسنده در مراحل رشد زایشی گیاه جو (.Hordeum vulgare L)
The effects of irrigation, dry farming and drought treatments on the activities of antioxidant enzymes including superoxide dismutase, ascorbate peroxidase, catalase and peroxidase in barley leaves at different generative growth stages under field conditions were investigated. Three senescence parameters including chlorophyll, total soluble protein and rubisco large subunit protein loss, were a...
متن کاملبررسی اثر تنش کم آبی بر نحوه فعالیت آنزیمهای ضد اکسنده در مراحل رشد زایشی گیاه جو (.Hordeum vulgare L)
The effects of irrigation, dry farming and drought treatments on the activities of antioxidant enzymes including superoxide dismutase, ascorbate peroxidase, catalase and peroxidase in barley leaves at different generative growth stages under field conditions were investigated. Three senescence parameters including chlorophyll, total soluble protein and rubisco large subunit protein loss, were a...
متن کاملHormonal changes during salinity-induced leaf senescence in tomato (Solanum lycopersicum L.)
Leaf senescence is one of the most limiting factors to plant productivity under salinity. Both the accumulation of specific toxic ions (e.g. Na+) and changes in leaf hormone relations are involved in the regulation of this process. Tomato plants (Solanum lycopersicum L. cv Moneymaker) were cultivated for 3 weeks under high salinity (100 mM NaCl) and leaf senescence-related parameters were studi...
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