chalazal

chalazal

美 　英

• 网络内脐

例句

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。

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。

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；

Chalazal end of mature embryo sac is narrow and elongated.

成熟胚囊的合点端狭长。

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。

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。

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。

Petals 7-11 mm; ovary pubescent but not white canescent; seeds with inconspicuous chalazal collar.

花瓣7-11毫米；子房具短柔毛但不是白色被灰白毛；种子具不明显的合点领。

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。

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

Morphology of chalazal region on endotesta in the seeds of Magnoliaceae and those of related families

木兰科及其近缘科种子内种皮合点区形态

Seeds obovoid-elliptic or elliptic, base rostrate, apex rounded, chalazal knot at or near base;

种子倒卵球形的椭圆形或椭圆形，基部具喙，先端圆形，种脐在基部或近基部的；

outer testa fleshy, dark blue to purplish, glossy, inner layer bony, smooth or intravaginated at chalazal end;

外种皮肉质，深蓝色到略带紫色，有光泽，内层骨质，平滑或在合点末端内部具鞘；