| 词汇 | spore |
| 释义 | spore noun[ C ] uk /spɔːr/ us /spɔːr/ a reproductive cell produced by some plants and simple organisms such as ferns and mushrooms孢子 Plant reproduction anther asexual reproduction asexuality asexually barrenness breeder chasmogamous endosperm palynology pistillate placentation pollinate pollination self-fertilize self-incompatible self-pollination sexlessly siltation stamen wind pollination You can also find related words, phrases, and synonyms in the topics: Cells spore | American Dictionaryspore noun[ C ] us/spɔr, spoʊr/ biology a cell produced by plants without seeds and by some other organisms and that is able to grow into a new plant or organism Examples of sporespore It is interesting that the simple contact with a surface signalled the spore to germinate. The spore suspensions were tested for viability prior to and during the 7-day experimental period. In the case of a dormant spore or seed, the loaded molecules could remain protective indefinitely, until germination. We constructed a simple mathematical model that formalizes potential antagonism (or synergism) between the parasite spores during infection. Suspensions of lower spore concentrations were prepared by threefold dilutions. Elements of the local mire vegetation, fern spores and other palynomorphs were not included in the pollen sum. The persistence times of living cells, metabolically dormant spores and organic molecule biomarkers at different depths can then be calculated. This gave rise to a suspension of 6 million spores per 20 ml. Measurements of the spore size of fresh material of both species gave no differences. One of the spores carries a mutant allele with a structure showing that a duplication in one chromatid had been transferred to a homologous chromatid. For example, in normal circumstances, only haploids begin growth by germinating from a spore. Concentration of bacterial particles (including both vegetative cells and spores) was determined microscopically using counting chambers. In the presence of appropriate nutrients, spores respond rapidly by germination and outgrowth, resuming vegetative growth. To obtain spores of this parasite, we took one naturally infected female and kept her in good food condition until she died from the infection. This pathogen was not observed in the host population for several (generally dry) periods implying survival outside the host, perhaps as resting spores. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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