نتایج جستجو برای: furrows
تعداد نتایج: 739 فیلتر نتایج به سال:
The experiment was conducted in the fields of Al-Hilla - Babylon province, with loam soil, during autumn season 2021, to study effect different irrigation methods and levels depletions on growth yield corn (Zea mays L.). Randomized Complete Block Design (RCBD) an as complete split plot three replications, main included treatment depletion subplot systems, treatments were distributed experimenta...
The development of the blastocoel in Xenopus laevis was studied by electron microscopy. Two major morphological specializations were associated both with blastocoel formation and with cleavage. The first specialization was the formation of close junctions at specific points along cleavage furrows, starting as early as the first division. The second was the secretion of material into the blastoc...
The development of the blastocoel in Xenopus laevis was studied by electron microscopy. Two major morphological specializations were associated both with blastocoel formation and with cleavage. The first specialization was the formation of close junctions at specific points along cleavage furrows, starting as early as the first division. The second was the secretion of material into the blastoc...
Assessment of soil erosion and sediment yield in furrow irrigation is limited in Samaru-Zaria. Data was collected in 2009 and 2010 and was used to develop a dimensionless model for predicting furrow irrigation-induced erosion (FIIE) using the dimensional analyses approach considering stream size, furrow length, furrow width, soil infiltration rate, hydraulic shear stress, soil erodibility, and ...
Cytokinesis is an essential step in neurogenesis, yet the mechanisms that control cytokinesis in the developing CNS are not well understood. The flathead ( fh) mutation in rat results in cytokinesis failure in neural progenitors followed by apoptosis and a dramatic reduction in CNS growth. Here we present evidence that the fh mutation is caused by a single base deletion in exon 1 of the gene en...
To determine if a living cell is necessary for the incorporation of actin, alpha-actinin, and tropomyosin into the cytoskeleton, we have exposed cell models to fluorescently labeled contractile proteins. In this in vitro system, lissamine rhodamine-labeled actin bound to attachment plaques, ruffles, cleavage furrows and stress fibers, and the binding could not be blocked by prior exposure to un...
BACKGROUND The initiation of a cleavage furrow is essential to separate cells during cytokinesis, but little is known about the mechanisms controlling this actin-driven process. Previous studies in C. elegans embryos revealed that inactivation of the CUL-3-based E3 ligase activator rfl-1 results in an aberrant microtubule network, ectopic furrowing during pronuclear migration, and defects durin...
BACKGROUND Actin cytoskeletal networks push and pull the plasma membrane (PM) to control cell structure and behavior. Endocytosis also regulates the PM and can be promoted or inhibited by cytoskeletal networks. However, endocytic regulation of the general membrane cytoskeleton is undocumented. RESULTS Here, we provide evidence for endocytic inhibition of actomyosin networks. Specifically, we ...
Twitching motility-mediated biofilm expansion is a complex, multicellular behavior that enables the active colonization of surfaces by many species of bacteria. In this study we have explored the emergence of intricate network patterns of interconnected trails that form in actively expanding biofilms of Pseudomonas aeruginosa. We have used high-resolution, phase-contrast time-lapse microscopy a...
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