查询词典 nutritive cell

Nonliving material in the protoplasm of a cell, such as pigment granules or nutritive substances.

后生质一个细胞细胞质内的无生命物质，如色素颗粒或营养物质

The growth of cell and the biochemical component in mixotrophic cultivation were affected by luminance, which is beneficial to growth and accumulation of nutritive components of C. vulgaris. 2. Growth of C. vulgaris under different magnetic treatment The cultivation of C. vulgaris was undertaken with static magnetic treatment, cycle magnetic treatment and magnetized water treatment respectively.

自养状态下小球藻生长缓慢，生物量低，但蛋白质、叶绿素、不饱和脂肪酸都较丰富；异养培养可以大幅提高小球藻生长速率和生物量，脂肪含量很高，有利于亚麻酸的积累，但光照的缺乏使叶绿素和蛋白含量降低；兼养培养既有利于藻的生长，也能促进各种成分的积累。

The situation of abnormal development of male cells is as follows:microspore mother cell can't enter into meiosis because of intense vacuolation,shrink and disintegration of its cytoplasm;although vacuolated microspore mother cell can enter into meiosis,it can't form normal dyad and degenerate in the middle process;dyad and tetrad become vacuolated and can't develop normally;cytoplasm of microspore shrinks around the nucleus at the stage of central nucleus microspore,the shape of microspore is twisted into crescent or irregular shape,at last its cytoplasm and nucleus are disintegrated and crescent vacant microspore presents;nutritive substances can't be accumulated at the stage of vacuolated microspore,cytoplasm is disintegrated,and microspore turns into a big vacant pollen.

雄性细胞异常发育有几种情况：小孢子母细胞强烈液泡化，细胞质收缩解体，不能进入减数分裂；小孢子母细胞液泡化，虽能进入减数分裂，但不能形成正常二分体而中途退化；二分体、四分体细胞液泡化，不能进行正常发育；单核小孢子中央期，细胞质收缩包围核，小孢子形状扭曲呈月牙形或不规则形，最终细胞质和核解体而呈月牙形的空壳小孢子；单核液泡期的小孢子不能积聚营养物质，细胞质解体而成为大的空壳花粉粒。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。