tapetum的例句大全

The development of anther wall belongs to the monocotyledonous type, and the tapetum is glander tapetum.

花药壁发育为单子叶型, 绒毡层为腺质型.

The anther is tetrasporangiate and glandular tapetum.

雄蕊花药四室,腺质绒毡层.

Franco consists of three layers: the epidermis, the middle layer and the tapetum.

Franco]小孢子囊壁包括3层细胞: 表皮 、 中层和绒毡层.

Male-sterility mainly results from the abnormality of mesospore, tapetum tissue and vascular bundle.

中层组织 、 绒毡层组织及药隔维管束异常均是雄性败育的因素.

The tapetum begins to vary at the stage of tetrad with the cytoplasm anther cell.

小孢子孢原为多细胞,小孢子母细胞减数分裂产生四面体型的小孢子四分体.

The middle layer and the tapetum cells are totally absorbed as nutrient at last.

中层和绒毡层细胞最终作为营养被全部吸收利用.

When the tapetum disintegrates gradually later, microspore mother cell has still not entered meiosis, finally disintegrated.

到后期绒毡层逐渐解体, 小孢子母细胞依然没有进入减数分裂, 最终解体.

Tapetal layer of blue honeysuckle belongs to amoeboid tapetum. 3.

蓝果忍冬绒毡层为变形绒毡层。

After the amoeboid tapetum disintigration, it's protoplasm round the pollens to provide nutrition for them.

分泌型绒毡层的内质网较变形绒毡层的发达，并不断向花粉粒分泌脂肪滴和小泡，变形绒毡层解体后原生质围绕于花粉的周围，供其发育之需。

Having analysed many photographs, authors think that the first contraction phase is due to the decrease of water potential in loculus and the outflow of water of microspore caused by secretion of many forming-wall materials in tapetum.

第一次收缩主要是由于绒毡层大量分泌造壁物质，使花药腔中水势下降，小孢子水分外渗。

The polarity in the mature egg is prominent ( 4) Microspore archesporium is of multicellular, the anther wall conforms to basic type, and the tapetum is glandular.

小孢子孢原为多细胞，药壁为基本型，具腺质绒毡层；