Actin Localization during Fucus Embryogenesis.
نویسندگان
چکیده
منابع مشابه
Actin Localization during Fucus Embryogenesis.
Embryogenesis in the Fucales serves as a model system for studying the acquisition of cellular and developmental polarity. Fertilized eggs bear no asymmetry, yet within 16 hours, a developmental axis is formed and the unicellular zygote germinates in accordance with this axis. Microfilaments (actin) play a crucial role in establishing the axis as evidenced by the inhibitory effects of cytochala...
متن کاملLocalization of Actin mRNA during the Establishment of Cell Polarity and Early Cell Divisions in Fucus Embryos.
Localization of mRNA is a well-described mechanism to account for the asymmetric distribution of proteins in polarized somatic cells and embryos of animals. In zygotes of the brown alga Fucus, F-actin is localized at the site of polar growth and accumulates at the cell plates of the first two divisions of the embryo. We used a nonradioactive, whole-mount in situ hybridization protocol to show t...
متن کاملFucus Embryogenesis: A Model to Study the Establishment of Polarity.
It has been known for more than 100 years that when spherical zygotes of the brown alga Fucus are subjected to a gradient of light, the plane of the first cell division is always perpendicular to the light axis. As illustrated in Figure 1, the resulting cell plate divides the zygote into two unequal cells; the smaller rhizoid cell emerges from the shaded portion of the gradient, whereas the lar...
متن کاملDynamics of cell wall assembly during early embryogenesis in the brown alga Fucus
Zygotes from Fucus species have been used extensively to study cell polarization and rhizoid outgrowth, and in this model system cell wall deposition aligns with the establishment of polarity. Monoclonal antibodies are essential tools for the in situ analysis of cell wall glycans, and here we report the characteristics of six monoclonal antibodies to alginates (BAM6-BAM11). The use of these, in...
متن کاملLocalization of dystrophin gene transcripts during mouse embryogenesis
The spatial and temporal expression of the dystrophin gene has been examined during mouse embryogenesis, using in situ hybridization on tissue sections with a probe from the 5' end of the dystrophin coding sequence. In striated muscle, dystrophin transcripts are detectable from about 9 d in the heart and slightly later in skeletal muscle. However, there is an important difference between the tw...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Plant Cell
سال: 1989
ISSN: 1040-4651,1532-298X
DOI: 10.1105/tpc.1.2.191