A Plantationocene is a threshold for understanding planetary change. Rather than attributing environmental transformations to the universal agency of humankind, grounds alteration landscape in histories colonialism and race, takes plantation be pivotal engine producing novel but fraught natures. This article develops vegetal geography Plantationocene, engaging relations between plants people as...

Although it is widely regarded that the targeting of RNA molecules to subcellular destinations depends upon the recognition of cis-elements found within their 3' untranslated regions (UTR), relatively little is known about the specific features of these cis-sequences that underlie their function. Interaction between specific repeated motifs within the 3' UTR and RNA-binding proteins has been pr...

One of the earliest lineage restriction events in embryogenesis is the specification of the primary germ layers: ectoderm, mesoderm and endoderm. In Xenopus, germ layer specification occurs prior to gastrulation and requires the transcription factor VegT both for the cell-autonomous specification of endoderm and the generation of mesoderm-inducing signals. In the absence of VegT, ectoderm is fo...

Using light microscopy techniques, we have studied the movements that follow fertilization in the denuded egg of the ascidian Phallusia mammillata. In particular, our observations show that, as a result of a series of movements described below, the mitochondria-rich subcortical myoplasm is split in two parts during the second phase of ooplasmic segregation. This offers a potential explanation f...