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chalazal

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chalazal

chalazal

chalazal

内脐

...生或半倒生胚珠从珠柄通到合点的维管束遗迹 4、内脐（chalazal）—— 是胚珠时期合点的遗迹，位于脐条的终点部位， …

1

The chalazal parts of the endosperm containing free nuclei forms several lobes .

包含游离核的合点端胚乳部分形成几个裂片。

2

Seeds obovoid, base rostrate , apex retuse, chalazal knot rounded, ventral holes furrowed from base nearly to apex .

种子倒卵球形，基部具喙，先端微凹，种脐圆形，腹面洞棱槽自基部几乎至先端。

3

Cell wall of the egg is complete while cellularization, but its chalazal part disappeared when the egg is mature.

细胞化胚囊时期的卵细胞具完整壁；卵细胞成熟时，合点端细胞壁消失；

4

Chalazal end of mature embryo sac is narrow and elongated .

成熟胚囊的合点端狭长。

5

Seeds obovoid, apex rounded and retuse, chalazal knot ovate-elliptic, ventral holes obelliptic.

种子倒卵球形，先端圆形和微凹，种脐卵状椭圆形，腹面洞倒椭圆形。

6

After fertilization , the zygote and the proembryo also lie in the chalazal end .

受精后，合子和原胚亦位于合点端。

7

The haustorium cellularizated from the micropylar end to chalazal end at the later globular stage .

球形胚晚期吸器自珠孔端向合点端逐渐细胞化。

9

the egg apparatus lies in the chalazal end while the antipodal cells lie in the micropylar end .

胚囊极性反转，即卵器位于合点端，而反足细胞位于珠孔端。

10

Chalazal region morphology on the endotesta of Magnoliaceous seeds and its systematic significance

木兰科种子内种皮合点区形态及其系统学意义

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