microspore的例句大全

The big , empty and abortive pollen grains are abserred at the stage of uninuclear microspore.

单核期的小孢子出现壁发育不良和巨大及空花粉现象.

The sporogenous cell develops into microspore mother cell.

造孢细胞直接发育成小孢子母细胞.

The nucleus in shrinking cytoplasm of microspore mother cell enters into telophase .17.

收缩的小孢子母细胞质中核进入减数分裂末期.

Microspore abortion occurred after the tetrad formation.

小孢子败育发生在四分体形成以后.

Abort microspore in crescent or irregular shape . 26.

月牙形和不规则形的败育小孢子.

Complete disintegration of cytoplasm at stage of vacuolated microspore.

单核液泡期的小孢子细胞质完全解体.

Meiosis of microspore mother cells is synchronous or unsynchronous.

小孢子母细胞减数分裂同步或不同步.

Before meiosis the microsporocytes have lipids in cytoplasm. After microspore mitosis the lipids increase and size.

小孢子母细胞减数分裂前,细胞质内含有脂滴, 小孢子有丝分裂以后,脂滴增多增大.

Isolated Microspore culture is one of the Methods : To obtain haploid.

摘要游离小孢子培养技术是获得大白菜单倍体植株的有效途径之一.

Microspore culture is an effcient method to produce haploid plant , which has been vigorously studied.

游离小孢子培养是产生单倍体的较好途径.

The endogenous hormonal ratio was interdependent to the microspore abortion of radish.

可见,萝卜小孢子的败育与内源激素平衡的破坏有关.

Rape have established regeneration system of cotyledons, hypocotyls, protoplasts and microspore culture.

油菜已经建立了子叶 、 胚轴 、 原生质体及小孢子培养的再生体系.

Cytokinesis is of the simultaneous type and microspore tetrads are mainly tetrahedral.

小孢子母细胞减数分裂为同时型.

Complete disintegration of cytoplasm of crescent or irregular shape of microspore .25.

月牙形和不规则形小孢子细胞质完全解体.

The microspore culture technology has been widely applied in Brassica species nowadays.

随着芸苔属作物小孢子培养技术的日趋成熟,应用范围也越来越广泛.

The development of microspore the uninucleus microspore stage , 2-uncleate pollen stage and 2-celled pollen stage.

小孢子发育经过单核花粉粒 、 二核花粉粒和二胞花粉粒三时期.

The nucleus in shrinking cytoplasm of microspore mother cell enters into diakinesis stage .16.

收缩的小孢子母细胞中核进入减数分裂终变期.

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；

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 addition of auxins ( NAA) and the cytokinins ( 6-BA) in NLN medium showed no significant effect on the frequencies of microspore-induced embryos, but when the concentration was excessive, the frequencies decreased.

NLN培养基中添加生长素（NAA）和细胞分裂素（6-BA）对小孢子胚诱导率影响不大，添加的浓度过大时小孢子胚诱导率反而降低；