词汇 | primordium |
释义 | BETA Examples of primordiumprimordium isn’t in the Cambridge Dictionary yet. You can help! A period of growth was, therefore, necessary to produce the double ridged primordia and so prevailing conditions influenced how rapidly this was achieved. Responses of leaf and tiller emergence and primordium initiation in wheat and barley to interchanged photoperiod. They deduced that this chilling causes young undifferentiated buds to form inflorescence primordia. The multiple primordia were only loosely fused and the large core was surrounded by a conspicuous discontinuous zone. If so, there would be phyletic continuity of the embryonic primordia of the two structures, although each has followed a separate developmental course. Caryonides are lineages of paramecia that derive their macronuclei (somatic nuclei) from single macronuclear primordia (anlagen). However, we regard this result as provisional since the inflorescence primordia that we assayed are complex structures with multiple organs developing at different rates. However, an almost similarly low rate of protein synthesis by the primordia of the alginatecoated seeds occurred between 25 and 40 days of storage. The water content of the primordia did not decline in seeds from either treatment. Samples consisted of 4-5 primordia from a single seed, with the cut surfaces coated with petroleum jelly, and were replicated four times. Figures 12 and 13root primordium cells of naked seeds stored for 18 days. Values are for the primordia from one seed (generally four). Excretory pore situated ventrally to tooth, at the base of the lip primordia. Then, in our next study,2 we demonstrated that the tube, prior to looping, contained the primordiums of the trabeculated components of the right and left ventricles. Leaf primordia are produced at regular intervals by the single, terminal growing point of the palm. Care was taken to harvest primordium from both treatment groups that were at the same stage of development, using primordia length and silk initiation as development markers. The number of the cells comprising each tube was not determined, but at least 2 cells were observed in the short region of each furcal primordium. |
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