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Land plants are called 'embryophytes' and thus, their collective name is defined by their ability to form embryos. Indeed, embryogenesis is a widespread phenomenon in plants, and much of our diet is composed of embryos (just think of grains, beans or nuts; Figure 1).
de Vries, Sacco C., Weijers, Dolf
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Somatic Embryogenesis in Elm [PDF]
We show that isolated zygotic embryos of Ulmus minor and U. glabra can produce embryogenic cultures provided they are isolated from immature seeds before storage proteins begin to accumulate. Rates of somatic embryogenesis were highest among zygotic embryos collected 6 weeks post-anthesis when they were at the midcotyledonary stage, were about 5 mm ...
Corredoira, Elena+2 more
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Embryogenesis in hydra includes a variable period of dormancy; and this period, as well as subsequent stages through hatching, takes place within a thick cuticle that hinders observation. Thus, although the early stages of development have been well-characterized qualitatively, the middle and later stages are only poorly understood.
C. L. Littlefield+3 more
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Plant embryo development is a complex process that includes several coordinated events. Maize mature embryos consist of a well-differentiated embryonic axis surrounded by a single massive cotyledon called scutellum. Mature embryo axis also includes lateral roots and several developed leaves.
Fontanet, Pilar, Vicient, Carlos M.
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Embryogenesis of the peristaltic reflex [PDF]
Key points Neurogenic gut movements start after longitudinal smooth muscle differentiation in three species (mouse, zebrafish, chicken), and at E16 in the chicken embryo. The first activity of the chicken enteric nervous system is dominated by inhibitory neurons. The embryonic enteric nervous system electromechanically couples circular and longitudinal
Nicolas Chevalier+6 more
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ATACing Somatic Embryogenesis [PDF]
How does auxin induce somatic embryogenesis? In this issue of Developmental Cell, Wang et al. uncover a regulatory role for auxin in the dynamics of chromatin accessibility and gene expression, which is critical for the establishment of developmental time-specific transcriptional regulatory networks orchestrating somatic-to-embryonic cell reprogramming
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Embryogenesis: Anchors away! [PDF]
It has long been appreciated that the oocyte cortex plays a key role in regulating fertilization and establishing embryonic polarity. Recent studies have identified the anti-phosphatase EGG-3 as a cortical anchor for regulatory proteins required for launching embryogenesis in Caenhorhabditis elegans.
David Greenstein, J. Amaranath Govindan
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Embryogenesis and the glyoxylate cycle [PDF]
The key catalysts of the glyoxylate cycle, isocitrate lyase (EC 4.1.3.1) and malate synthase (EC 4.1.3.2), have been investigated in a variety of tissues [l-3]. In general, the biological a~im~ation of acetate units or the conversion of fatty acids to carbohydrates requires function of glyoxylate cycle [4-61.
F.R. Khan, Bruce A. McFadden
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The Roads to Haploid Embryogenesis
Although zygotic embryogenesis is usually studied in the field of seed biology, great attention has been paid to the methods used to generate haploid embryos due to their applications in crop breeding. These mainly include two methods for haploid embryogenesis: in vitro microspore embryogenesis and in vivo haploid embryogenesis.
Kun Shen, Mengxue Qu, Peng Zhao
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Adrenomedullin in mammalian embryogenesis [PDF]
AbstractHere are summarized data supporting that adrenomedullin (AM) is a multifunctional factor involved in the complex regulatory mechanisms of mammalian development. During rodent embryogenesis, AM is first expressed in the heart, followed by a broader but also defined spatio‐temporal pattern of expression in vascular, neural, and skeletal‐forming ...
Frank Cuttitta+3 more
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