megaspore的意思

megaspore中文翻譯：

n.大孢子；（種子植物的）胚囊

相似詞語短語

megaera solo───梅蓋拉獨奏

pureform omegas───純歐米茄，

mega calcium───巨鈣

acromegaly cat───肢端肥大癥貓

acromegaly syndrome───肢端肥大癥

caius the mega monarch───凱烏斯是超級君主

acromegaly score───肢端肥大癥評分

aganglionic megacolon───[醫]無神經節性巨結腸：同congenital megacolon

patmos omega───歐米茄patemos

omega seamaster───歐米茄塞馬斯特

雙語使用場景

synchronous development of megaspore and pollen chamber.───孢子發育和貯粉室發生的同步性。

Megaspore tetrad is linear. The chalazal megaspore develops into an embryo sac of Polygonum type.───孢子四分體為線形，合點端功能大孢子發育成為蓼型胚囊。

Arrangement of megaspore is linear shaped, the megaspore of chalazal end is functional megaspore.───孢子排列為直線型，合點端大孢子為功能大孢子。

In theterosporous species, a distinction is usually made between megaspore mother cells and microspore mother cells.───在異型孢子體種類中，可區分為大孢子母細胞和小孢子母細胞。

Of the four products of a megaspore mother cell, three usually abort.───在大孢子母細胞分裂產生的四個孢子中，三個會解體消失。

The megaspore mother cell meiosis to form a linear megaspore tetrad.───大孢子母細胞減數分裂產生直線形大孢子四分體。

In the gymnosperms the megaspore gives rise to a cell that is termed the embryo sac because of its similarity to the angiosperm structure.───在裸子植物中，大孢子也產生一個細胞，因為它類似于被子植物的胚囊細胞，故也可以稱之為胚囊。

Genesis of megaspore and development of embryo sac in Carica papaya L .───番木瓜的大孢子發生與胚囊發育。

英語使用場景

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So it defined as crassinucellate. The megaspore mother cell divides transversally to form a linear megaspore tetrad. The megaspore at the chalazal end develops into the embryo sac mother cell.

Development of megaspore and formation of embryo sac:The ovule has a layer of parietal cells at the sporogenous stage.

The functional megaspore in the linear tetrad is the one endsac is the polygonum type.

In dandelion ( Taraxacum ), for example, the chromosomes of the megaspore mother cell remain in one cell after the first meiotic division, forming a restitution nucleus.

Function megaspore is in the chalaza and the monosporic embryo sac is chenopodiad type.

Megaspore tetrad is linear. The chalazal megaspore develops into an embryo sac of Polygonum type.

The megaspore archesporium splits circumference, it circumferential edge cell and a sporogenous cell.

A single archesporium differentiates immediately below the nucellar epidermis, it functions directly as the megaspore mother cell.