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Embryo–Endosperm Interactions

Abstract : In angiosperms, double fertilization triggers the concomitant development of two closely juxtaposed tissues, the embryo and the endosperm. Successful seed development and germination require constant interactions between these tissues, which occur across their common interface. The embryo–endosperm interface is a complex and poorly understood compound apoplast comprising components derived from both tissues, across which nutrients transit to fuel embryo development. Interface properties, which affect molecular diffusion and thus communication, are themselves dynamically regulated by molecular and physical dialogues between the embryo and endosperm. We review the current understanding of embryo–endosperm interactions, with a focus on the structure, properties, and function of their shared interface. Concentrating on Arabidopsis, but with reference to other species, we aim to situate recent findings within the broader context of seed physiology, developmental biology, and genetic factors such as parental conflicts over resource allocation.
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Submitted on : Wednesday, June 1, 2022 - 9:49:11 AM
Last modification on : Friday, September 30, 2022 - 12:00:07 PM

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Nicolas Doll, Gwyneth Ingram. Embryo–Endosperm Interactions. Annual Review of Plant Biology, Annual Reviews, 2022, 73 (1), pp.293-321. ⟨10.1146/annurev-arplant-102820-091838⟩. ⟨hal-03683970⟩



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