19 Ergebnisse
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In: Environmental science and pollution research: ESPR, Band 25, Heft 13, S. 13127-13133
ISSN: 1614-7499
In: Defence Technology, Band 17, Heft 4, S. 1471-1485
ISSN: 2214-9147
In: PNAS nexus, Band 2, Heft 2
ISSN: 2752-6542
Abstract
Bacterial cells mostly divide symmetrically. In the filamentous, multicellular cyanobacterium Anabaena, cell-division planes are aligned vertically relative to the long axis of every single cell. This observation suggests that both the placement and the angle of the division planes are controlled in every single cell so that the filament can grow in one single dimension along the long axis. In this study, we showed that inactivation of patU3 encoding a cell-division inhibitor led cells to divide asymmetrically in two dimensions leading to twisted filaments, indicating that PatU3 controls not only the position but also the angle of the division planes. Deletion of the conserved minC and minD genes affected cell division symmetry, but not the angle of the division planes. Remarkably, when both patU3 and minCD were inactivated, cells could divide asymmetrically over 360° angles in three dimensions across different cellular sections, producing not only cells with irregular sizes, but also branching filaments. This study demonstrated the existence of a system operating in a three-dimensional manner for the control of cell division in Anabaena. Such a regulation may have been evolved to accommodate multicellular behaviors, a hallmark in evolution.
In: Children and youth services review: an international multidisciplinary review of the welfare of young people, Band 120, S. 105766
ISSN: 0190-7409
In: Materials and design, Band 93, S. 53-62
ISSN: 1873-4197
In: Journal of consumer protection and food safety: Journal für Verbraucherschutz und Lebensmittelsicherheit : JVL, Band 7, Heft 2, S. 137-140
ISSN: 1661-5867
In: Environmental science and pollution research: ESPR, Band 22, Heft 14, S. 10425-10433
ISSN: 1614-7499
In: Ecotoxicology and environmental safety: EES ; official journal of the International Society of Ecotoxicology and Environmental safety, Band 134, S. 17-22
ISSN: 1090-2414
In: Environmental science and pollution research: ESPR, Band 21, Heft 3, S. 1875-1883
ISSN: 1614-7499
In: MICROC-D-22-00293
SSRN
In: Ecotoxicology and environmental safety: EES ; official journal of the International Society of Ecotoxicology and Environmental safety, Band 180, S. 73-79
ISSN: 1090-2414
In: Ecotoxicology and environmental safety: EES ; official journal of the International Society of Ecotoxicology and Environmental safety, Band 165, S. 88-95
ISSN: 1090-2414
In: Computers and Electronics in Agriculture, Band 175, S. 105585
In: Ecotoxicology and environmental safety: EES ; official journal of the International Society of Ecotoxicology and Environmental safety, Band 241, S. 113772
ISSN: 1090-2414
In: Environmental science and pollution research: ESPR, Band 30, Heft 22, S. 63200-63214
ISSN: 1614-7499