The chalaza (/ k ə ˈ l eɪ z ə /; from Ancient Greek χάλαζα (khálaza) ' hailstone '; pl.: chalazas or chalazae / k ə ˈ l eɪ z i /) is a structure inside bird eggs and plant ovules. It attaches or …

Apr 1, 1997 · The chalaza is the region of the ovule where the nucellus, integuments, and funicle merge, and therefore usually encompasses a vascular bundle. The interface between chalazal …

In Arabidopsis, the endosperm partially eliminates the nucellus and imports sugars from the seed coat. Here, we show that the nucellus is symplasmically connected to the chalaza, the seed …

Apr 20, 2023 · The main difference between micropyle and chalaza is that a micropyle is a small opening in the outer integument of an ovule, whereas a chalaza is the base of the ovule where …

The chalaza is the region of the ovule where the nucellus, integuments, and fu- nicle merge, and therefore usually encompasses a vascular bundle. The interface between

May 1, 2002 · Ovules give rise to the gametophyte in the distal nucellus and form protective sporophytic organs from the underlying chalaza. We show that the WUSCHEL (WUS) …

In Arabidopsis, ovule primordia contain three functional regions: funiculus, chalaza, and nucellus (Schneitz et al., 1995). The funiculus is connected to the placenta and develops vascular …

Proximal nucellar structures arise from a multi-layered region of the ovule and include hypostase, enlarged dermal cells and conducting passage (Zuleitungsbahn), haustoria, postaments, …

In Arabidopsis seeds, nucellus elimination begins 2 days after flowering (DAF) and progresses in a distal–proximal fashion to achieve the loss of 50% of its cells by 8 DAF. A few layers of …

The ovule is a small structure present in the ovary. It is attached to the placenta by a stalk called a funicle. The funicle provides nourishment to the ovule. On the basis of the relative position of …