Płachno BJ, Musiał K, Świątek P, Tuleja M, Marciniuk J, Grabowska-Joachimiak A (2014a) Synergids and filiform apparatus in the sexual and apomictic dandelions from section Palustria ( Taraxacum , Asteraceae). Protoplasma 251:211–217. : 10.1007/s00709-013-0539-2 ...
An actin cap is present near the filiform apparatus after anthesis and disappears after pollen tube arrival. In the egg cell, actin filaments initially organize into a network and after pollination become fragmented into numerous patches in the cortex. These structures, along with the actin in ...
which originates from the peritoneum. The epithelium of the ovary (coelom) derives from the mesoderm and is formed by squamous cells that cover the outside of the ovary [56]. The ovarian epithelium is a layer of flattened cells that form the inner ...
The common waxbill, Estrilda astrild (L., 1758) (Passeriformes: Estrildidae) is a small passerine bird native to Sub-Saharan Africa that has been introduced into several regions of the world. In the present paper, eight mite species (Acariformes) are rep
The meninges surround the brain and spinal cord, affording physical protection while also serving as a niche of neuroimmune activity. Though possessing stromal qualities, its complex cellular and extracellular makeup has yet to be elaborated, and it rema
This so-called filiform apparatus is the first point of contact between the male and female gametophytes, which communicate in preparation for penetration of the receptive synergid cell by the PT, PT rupture, sperm release, and double fertilization6. While one sperm fuses with the egg cell to...
Tintinnopsella car- pathica (MURGEANU & FILIPESCU) is still present in this assem- blage, and Calpionella sp. is frequent. The genus Crassicollaria is represented only by Cr. parvula REMANE, that disappears in the uppermost part of the assemblage. Assemblage VI The base of this ...
Sclerotia are mostly neglected as important fungal structures, because they are not distinctly present in most fungal isolations. Sclerotial development has a role in dormancy and is also considered an important condition for sexual development.26 Asci and ascospores can be found in sclerotia in ...
During this process, pollen tubes need to pass through different tissues of the pistil including papillar cells of the stigma, the transmitting tract, the septum and the filiform apparatus13. To penetrate these ‘physical barriers’ of the pistil, pollen tubes must regulate their turgor pressure ...
Also Dianous lacks a carina on the mentum, a structure present in Stenus and possi- bly associated with the well developed prey-capture apparatus as well (Fig. 1e,f). An undescribed genus from Australia has the prey-capture apparatus and carina on the mentum too, but an overall ...