Activation of rape (Brassica napus L.) embryo during seed germination. III. Ultrastructure of dry embryo axis
نویسندگان
چکیده
منابع مشابه
Storage oil breakdown during embryo development of Brassica napus (L.).
In this study it is shown that at least 10% of the major storage product of developing embryos of Brassica napus (L.), triacylglycerol, is lost during the desiccation phase of seed development. The metabolism of this lipid was studied by measurements of the fate of label from [1-(14)C]decanoate supplied to isolated embryos, and by measurements of the activities of enzymes of fatty acid cataboli...
متن کاملHidden Effects of Seed Quality Breeding on Germination in Oilseed Rape (Brassica napus L.)
Intense selection for specific seed qualities in winter oilseed rape breeding has had an inadvertent negative influence on seed germination performance. In a panel of 215 diverse winter oilseed rape varieties spanning over 50 years of breeding progress in winter-type rapeseed, we found that low seed erucic acid content and reduced seed glucosinolate content were significantly related with prolo...
متن کاملControl of Seed Germination by Abscisic Acid : III. Effect on Embryo Growth Potential (Minimum Turgor Pressure) and Growth Coefficient (Cell Wall Extensibility) in Brassica napus L.
The physical mechanism of seed germination and its inhibition by abscisic acid (ABA) in Brassica napus L. was investigated, using volumetric growth (= water uptake) rate (dV/dt), water conductance (L), cell wall extensibility coefficient (m), osmotic pressure ( product operator(i)), water potential (Psi(i)), turgor pressure (P), and minimum turgor for cell expansion (Y) of the intact embryo as ...
متن کاملCorrigendum: Heat Stress during Seed Filling Interferes with Sulfur Restriction on Grain Composition and Seed Germination in Oilseed Rape (Brassica napus L.)
[This corrects the article on p. 213 in vol. 6, PMID: 25914702.].
متن کاملHeat stress during seed filling interferes with sulfur restriction on grain composition and seed germination in oilseed rape (Brassica napus L.)
In coming decades, increasing temperatures are expected to impact crop yield and seed quality. To develop low input systems, the effects of temperature and sulfur (S) nutrition in oilseed rape, a high S demanding crop, need to be jointly considered. In this study, we investigated the effects of temperatures [High Temperature (HT), 33°C/day, 19°C/night vs. Control Temperature (Ctrl T), 20°C/day,...
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ژورنال
عنوان ژورنال: Acta Societatis Botanicorum Poloniae
سال: 2014
ISSN: 2083-9480
DOI: 10.5586/asbp.1984.016