Results 21 to 30 of about 2,060 (125)
PLoS Genetics, 2016 During prophase of the first meiotic division (prophase I), chromatin dynamically reorganises to recombine and prepare for chromosome segregation. Histone modifying enzymes are major regulators of chromatin structure, but our knowledge of their roles in ...
Liudmila Zhaunova +2 more
doaj +1 more source
Ultrastructural changes during megasporogenesis in Epipactis (Orchidaceae)
Acta Societatis Botanicorum Poloniae, 2014 Plastids were temporarily localized within the micropylar portion of the early first prophase Epipactis meiocyte. Some of these plastids were observed in close proximity to the nuclear envelope.
Józef Bednara +2 more
doaj +1 more source
Schizophrenia Research: Cognition, 2014 Background: The Positive and Negative Syndrome Scale (PANSS) assesses multiple domains of schizophrenia. Evaluation of each of these domains was conducted to assess differences in the characteristics of psychopathology and their relative predominance in ...
Anzalee Khan +7 more
doaj +1 more source
BioEssays, EarlyView.Here, we suggest that negative autoregulation (NAR) by poison exon splicing enables splicing factors to rapidly and efficiently switch expression in response to transcription changes. This would prevent potentially dangerous levels of splicing factor proteins accumulating in vulnerable cell types and help explain poison exon ultra‐conservation ...
Caroline Dalgliesh +3 more
wiley +1 more source
Cell Reports, 2016 Mammalian NIMA-like kinase-1 (NEK1) is a dual-specificity kinase highly expressed in mouse germ cells during prophase I of meiosis. Loss of NEK1 induces retention of cohesin on chromosomes at meiotic prophase I.
Miguel A. Brieño-Enríquez +7 more
doaj +1 more source
Interaction Between Actin and Microtubules During Plant Development
Cytoskeleton, EarlyView.ABSTRACT The dynamic interaction between actin filaments (AFs) and microtubules (MTs) plays a crucial role in regulating key developmental and physiological processes in plant cells, particularly in the formation of specialized cell types with distinct shapes and functions, such as pollen tubes, trichomes, and leaf epidermal cells.
Zining Wu +3 more
wiley +1 more source
Cytoskeleton, EarlyView.ABSTRACT Of the three types of cytoskeleton known in animals—actin, microtubules, and intermediate filaments—only actin and microtubules exist in plants. Both play important roles in cellular shaping, organelle movement, organization of the endomembrane system, and cell signaling.
Norman R. Groves +3 more
wiley +1 more source
Making Two out of One: Kinesin Motors Driving Plant Cell Division
Cytoskeleton, EarlyView.ABSTRACT The Kinesin superfamily of microtubule dependent motors is present in all eukaryotes. Not all of the subfamilies are represented in all kingdoms, and the ones that are do not always show conserved functions. Tight control of the cytoskeleton is essential for proper progression and completion of mitosis and cytokinesis, and key functions are ...
Choy Kriechbaum, Sabine Müller
wiley +1 more source
Barley Anther and Meiocyte Transcriptome Dynamics in Meiotic Prophase I
Frontiers in Plant Science, 2021 In flowering plants, successful germinal cell development and meiotic recombination depend upon a combination of environmental and genetic factors. To gain insights into this specialized reproductive development program we used short- and long-read RNA ...
Abdellah Barakate +13 more
doaj +1 more source
Cytoskeleton, EarlyView.ABSTRACT Pollen is a male gametophyte of angiosperms. Following meiosis, the microspore undergoes an asymmetric division called pollen mitosis I (PMI), which produces two cells of different sizes: a large vegetative cell and a small generative cell. Polarized nuclear migration and positioning during PMI are important for successful pollen development ...
Yoko Mizuta +5 more
wiley +1 more source