... transferred in seminal fluid, in which it can influence sperm success. Reproduction Sperm Cell differentiation Intercellular signaling Protease inhibitor Seminal fluid Caenorhabditis elegans Sexual reproduction requires the development and differentiation of sperm cells that are capable...

...-72076 Tübingen, Germany 25 2 2007 © 2007. 2007 Intercellular signaling Epidermis Tissue specification Embryonic patterning Arabidopsis In multicellular organisms, including in animals and higher plants, the epidermis differentiates during embryogenesis and supports...

... between somatic and germline differentiation programs, probably mediated by intercellular signaling between these two cell lineages. Although somatic cell differentiation in the germarium is a key step in this process, small cell size, intermingling between proliferation, migration and early...

... cM on chromosome I. The results presented have implications for intercellular signaling pathways that regulate embryonic development, and furthermore represent the first attempt to screen directly for mutants of Arabidopsis with altered size exclusion limit of plasmodesmata. *Author...

... intercellular signaling TGF-β family, midgut morphogenesis Drosophila Ligands of the transforming growth factor-β (TGF-β) superfamily are required for numerous developmental events in many organisms (reviewed in Kingsley, 1994 ). These secreted molecules function through the activation of receptor...

... formation of the boundaries of morphogenetic progenitor fields depends on both positive and negative transcription control functions. Specification of morphogenetic progenitor fields, organization of the boundaries and their subsequent regionalization or subdivision are mediated by intercellular signaling...