繁殖体
- 与 繁殖体 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Previous attempts to boost the numbers of native oysters in the bay by banning oyster fishing had proved disappointing because the molluscs failed to re-establish themselves.
有的地方曾尝试通过实施禁捕来提高本地牡蛎的数量,结果却令人失望,该办法并未促进这种软体类动物有效地繁殖。
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mycoplasma pneumoniae is a range between viruses and bacteria, the smallest self-propagation prokaryote, is the cause of children and respiratory infections of sars one of the main pathogens.
肺炎支原体是一种介于病毒和细菌之间,能自行繁殖的最小原核生物,是引起儿童呼吸道感染及非典型肺炎的主要病原之一。
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Some strains of the nematode-bearing bacteria were bioassayed for their parasitism. All these bacteria can totally not grow or grows badly on the media incorporating the extracts of pine trees, indicating some substances existing in the trees will harmful to the bacterial strains, which is further convinced by preliminary inoculation showing that single bacterial species will not infect Pinus thugbergii. Hence, the growth and reproduction of the nematode-carrying bacteria, which could produce toxic substances causing the death of the tree cells, is closely related to the nematodes, when they first enter to the trees. In the same time, the activity of bacteria improved the circumstances for which nematodes are living, which in turn will beneficial to the growth of nematodes. Thus, there is a complicated interaction among nematodes, bacteria, and pine trees.
对松材线虫携带的细菌的部分菌株进行了寄生性测定,表明这些细菌在添加松树提取液的细菌培养基中不能生长或基本不能生长,这说明松树体内可能存在某些不利于细菌生长的物质,同时初步的接种试验证实,单独的细菌接种不能感染健康的黑松,因此,线虫携带的致病细菌在最初进入树体时,其生长和繁殖与线虫密切相关,结合细菌产生的毒性物质可造成黑松细胞死亡的情况,说明细菌的生长与线虫有关,同时,细菌的活动改变了线虫在松树内的生长环境,使环境变得有利于线虫的生活,因此,线虫、细菌和松树三者存在着复杂的生物关系。
- 推荐网络例句
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They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.
他们没有侵略性,但我大喊,并在他们的方向扔石头让他们过的线索,远离我,以防万一。
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In slot 2 in your bag put wrapping paper, quantity does not matter in this case.
在你的书包里槽2把包装纸、数量无关紧要。
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Store this product in a sealed, lightproof, dry and cool place.
密封,遮光,置阴凉干燥处。