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The embryo sac of Linum usitatissimum consists, as in most angiosperms, of the egg, two synergids, central cell and antipodals. In Linum the embryo sac is strongly polarized in the longitudinal axis, but rotationally random relative to the vascular bundles of the ovule and ovary. Synergids
An acute outbreak of C. orbiculata L. poisoning in a flock of 16 Angora Goat rams is described. Typical signs of acute bufadienolide cardiac glycoside toxicity were manifested and 6 animals died. In the 2 animals examined histopathologically multiple foci of myocardial degeneration and necrosis were
Soybean developing seed is susceptible to high temperature and humidity (HTH) stress in the field, resulting in vigor reduction. Actually, the HTH in the field during soybean seed growth and development would also stress the whole plant, especially on leaf and pod, which in turn affect A mixture of liquid-crystalline and gel-phase lipid domains is detectable by wide angle x-ray diffraction in smooth microsomal membranes isolated from senescent 7-day-old cotyledons, whereas corresponding membranes from young 2-day-old cotyledons are exclusively liquid-crystalline. The gel-phase
Acyl-CoA dehydrogenase activity has been measured in homogenates of post-imbibition to 14-day-old hydroponically grown pea seeds at daily intervals, using C(4), C(12) and C(16) acyl-CoA substrates. The activity peaks of the different chain-length acyl-CoA dehydrogenases did not transpose at all
The use of walnut or peanut in the elaboration of cereal bars represents a possible risk of undesirable changes during their storage due to their high content of unsaturated fatty acids in the oil; oxidizing of the fatty acids is one of the main causes of deterioration. Development of new snack
Changes in the fine structure of flax (Linum usitatissimum) cotyledon leaf cells treated with the herbicide paraquat (1,1'-dimethyl-4,4'-bipyridylium ion.) were investigated. After 6 h treatment under constant illumination, tonoplast breakdown was evident. This was followed by a rapid and
Darkness mediates different senescence-related responses depending on the targeting of dark treatment (whole plants or individual leaves) and on the organs that perceive the signal (leaves or cotyledons). As no data are available on the potential role of darkness to promote senescence when applied