作业帮谁帮忙翻译下 关于植物的Endosperm formation and differentiation occur in distinctphases. Nuclear division of the fertilized (triploid) central cellstarts immediately after fertilization. Absence of cell-wallformation results in a multi-nucl
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谁帮忙翻译下 关于植物的Endosperm formation and differentiation occur in distinctphases. Nuclear division of the fertilized (triploid) central cellstarts immediately after fertilization. Absence of cell-wallformation results in a multi-nucl
谁帮忙翻译下 关于植物的
Endosperm formation and differentiation occur in distinct
phases. Nuclear division of the fertilized (triploid) central cell
starts immediately after fertilization. Absence of cell-wall
formation results in a multi-nucleate cell with a large central
vacuole (Olsen, 2004) called an endosperm coenocyte
(Engell, 1989). Endosperm cellularization starts in the cen-
tripetal direction and is repeated until the endosperm cavity
becomes cellularized (Olsen et al., 1998). Cell fate specifica-
tion has already occurred in the endosperm coenocyte
(Olsen, 2001), and is determined by surface position rather
than signalling from maternal tissues (Gruis et al., 2006).
Abscisic acid (ABA) transported from leaves to seeds via the
phloem is a regulator of endospermal cell division (Ober and
Setter, 1990; Setter et al., 1980). ABA deficiency reduces
seed yield in Nicotiana plumbaginifolia (Frey et al., 2004),
indicating ABA influences on seed filling also.
谁帮忙翻译下 关于植物的Endosperm formation and differentiation occur in distinctphases. Nuclear division of the fertilized (triploid) central cellstarts immediately after fertilization. Absence of cell-wallformation results in a multi-nucl
胚乳的形成和分化发生在不同的阶段.核分裂的受精卵（三）中央细胞施肥后立即开始.无细胞壁结果在一个多核的细胞形成一个大型的中央液泡（奥尔森,2004）称为胚乳多核细胞（engell,1989）.胚乳细胞化开始于岑—tripetal方向和重复直到胚乳腔成蜂窝状（奥尔森等人.,1998）.细胞命运规范—已经发生的胚乳多核细胞（奥尔森,2001）,并确定表面位置而比信号从母体组织（南天等人.,2006）.脱落酸（脱落酸）运输从叶种子通过韧皮部是调节细胞分裂和endospermal（奥伯二传手,1990；二传手等人,1980）.阿坝缺陷减少烟草种子产量plumbaginifolia（弗雷等人.,2004）,脱落酸的影响也表明种子填充.