chalazal

chalazal

美 　英

• 網絡內臍

例句

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

包含游離核的合點端胚乳部分形成幾個裂片。

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

種子倒卵球形，基部具喙，先端微凹，種臍圓形，腹面洞棱槽自基部幾乎至先端。

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

細胞化胚囊時期的卵細胞具完整壁；卵細胞成熟時，合點端細胞壁消失；

Chalazal end of mature embryo sac is narrow and elongated.

成熟胚囊的合點端狹長。

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

種子倒卵球形，先端圓形和微凹，種臍卵狀橢圓形，腹面洞倒橢圓形。

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點端。

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點端逐漸細胞化。

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；種子具不明顯的合點領。

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

胚囊極性反轉，即卵器位于合點端，而反足細胞位于珠孔端。

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

木蘭科種子內種皮合點區形態及其系統學意義

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

木蘭科及其近緣科種子內種皮合點區形態

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

種子倒卵球形的橢圓形或橢圓形，基部具喙，先端圓形，種臍在基部或近基部的；

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

外種皮肉質，深藍色到略帶紫色，有光澤，內層骨質，平滑或在合點末端內部具鞘；