Dictyostelium
نویسندگان
چکیده
منابع مشابه
Dictyostelium
How do the amoebae know where to go? Amoebae are chemotactic: they can sense gradients of certain chemicals and move along them. Dicty is known to chemotax to two chemicals: folic acid, which is released by bacteria and used in the hunt for food, and cAMP, which is released by amoebae during starvation and used to find each other during aggregation. Cells have evolved a relay mechanism in which...
متن کاملDictyostelium morphogenesis.
During starvation-induced Dictyostelium development, up to several hundred thousand amoeboid cells aggregate, differentiate and form a fruiting body. The chemotactic movement of the cells is guided by the rising phase of the outward propagating cAMP waves and results in directed periodic movement towards the aggregation centre. In the mound and slug stages of development, cAMP waves continue to...
متن کاملDictyostelium discoideum
Dictyostelium discoideum is a cellular slime mold [4] that serves as an important model organism [5] in a variety of fields. Cellular slime molds have an unusual life cycle. They exist as separate amoebae, but after consuming all the bacteria in their area they proceed to stream together to form a multicellular organism. These features make them a valuable tool for studying developmental proces...
متن کاملRegulate Dictyostelium Differentiation
■ Abstract In Dictyostelium amoebae, cell-type differentiation, spatial patterning, and morphogenesis are controlled by a combination of cell-autonomous mechanisms and intercellular signaling. A chemotactic aggregation of ∼105 cells leads to the formation of a multicellular organism. Cell-type differentiation and cell sorting result in a small number of defined cell types organized along an ant...
متن کاملMaking Dictyostelium stick
euronal growth cones have detergent-resistant membranes (DRMs), specialized cell membrane fractions enriched in GPI-anchored proteins and intracellular signaling molecules. But are the DRMs involved in regulating neurite outgrowth? Yes, say Nakai and Kamiguchi (page 1097), who developed a new technique for selectively disrupting DRMs, and used it to demonstrate the functional importance of thes...
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ژورنال
عنوان ژورنال: Current Biology
سال: 2010
ISSN: 0960-9822
DOI: 10.1016/j.cub.2010.09.051