نتایج جستجو برای: cotyledons
تعداد نتایج: 2324 فیلتر نتایج به سال:
Mechanistic inter-relationships in sinks between sucrose compartmentation/metabolism and phloem unloading/translocation are poorly understood. Developing grain legume seeds provide tractable experimental systems to explore this question. Metabolic demand by cotyledons is communicated to phloem unloading and ultimately import by sucrose withdrawal from the seed apoplasmic space via a turgor-home...
The influence of O(2) availability on the rate of protein synthesis, the levels of RNA and of adenylates, and the value of the energy charge in squash (Cucurbita maxima) cotyledons isolated from seeds germinated for 15 or 28 hours at different O(2) concentration (3% or 20% O(2)) has been investigated.The rate of protein synthesis is five times lower in cotyledons maintained in 3% O(2) than in t...
Depending on host-pathotype combination, two types of sunflower-Plasmopara halstedii incompatibility reactions have previously been identified. Type I resistance can restrict the growth of the pathogen in the basal region of the hypocotyls, whereas type II cannot, thus allowing the pathogen to reach the cotyledons. In type II resistance, a large portion of the hypocotyls is invaded by the patho...
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