AI Article Synopsis
- Chloroplast DNA is organized into structures called chloroplast nucleoids, which are crucial for replication and inheritance.
- Researchers used live-imaging technology to study the behavior of these nucleoids during chloroplast division, observing that they can dynamically change from a globular form to a network structure.
- In a mutant strain where chloroplast nucleoids are unevenly distributed, early nucleoid formation is concentrated in the proximal area, indicating that this area plays a key role in the transformation and organization of nucleoid structures.
Article Abstract
Chloroplast DNA is organized into DNA-protein conglomerates called chloroplast nucleoids, which are replicated, transcribed, and inherited. We applied live-imaging technology with a microfluidic device to examine the nature of chloroplast nucleoids in . We observed the dynamic and reversible dispersion of globular chloroplast nucleoids into a network structure in dividing chloroplasts. In the monokaryotic chloroplast () mutant, in which chloroplast nucleoids are unequally distributed following chloroplast division due to a defect in , the early stages of chloroplast nucleoid formation occurred mainly in the proximal area. This suggests the chloroplast nucleoid transformable network consists of a highly compact core with proximal areas associated with cpDNA replication and nucleoid formation.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6123815 | PMC |
| http://dx.doi.org/10.1038/s42003-018-0055-1 | DOI Listing |
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