Results 11 to 20 of about 24,794 (198)
Fontainea is a plant genus with nine recognised species that occur across the tropical and subtropical rainforests of Australia, Papua New Guinea, New Caledonia, and Vanuatu.
Aaron J. Brunton+8 more
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Plastids undergo a process of binary fission in order to replicate. Plastid replication is required at two distinct stages of plant growth: during cell division to ensure correct plastid segregation, and during cell expansion and development to generate large populations of functional plastids, as in leaf mesophyll cells.
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Organellar DNA Polymerases in Complex Plastid-Bearing Algae
DNA replication in plastids and mitochondria is generally regulated by nucleus-encoded proteins. In plants and red algae, a nucleus-encoded enzyme called POP (plant and protist organellar DNA polymerase) is involved in DNA replication in both organelles ...
Yoshihisa Hirakawa, Arisa Watanabe
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The Arabidopsis arc5 and arc6 mutations differentially affect plastid morphology in pavement and guard cells in the leaf epidermis. [PDF]
Chloroplasts, or photosynthetic plastids, multiply by binary fission, forming a homogeneous population in plant cells. In Arabidopsis thaliana, the division apparatus (or division ring) of mesophyll chloroplasts includes an inner envelope transmembrane ...
Makoto T Fujiwara+7 more
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Sucrose Metabolism in Plastids [PDF]
Abstract The question whether sucrose (Suc) is present inside plastids has been long debated. Low Suc levels were reported to be present inside isolated chloroplasts, but these were argued to be artifacts of the isolation procedures used.
Gerrits, N.+6 more
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Genetic and Molecular Genetic Basis of Nuclear-Plastid Incompatibilities
Genetic analysis of nuclear-cytoplasm incompatibilities is not straightforward and requires an elaborated experimental design. A number of species have been genetically studied, but notable advances in genetic mapping of nuclear loci involved in nuclear ...
Vera S. Bogdanova
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Plastids, starch and chlorophyll in Vitis vinifera L. berry during its ontogenesis
Structural and ultrastructural investigations on plastidial ontogenesis in the tissues of Vitis vinifera berry arc realised in narrow association with starch and chlorophyll dosages from the stage of fruit setting till berry ripeness. During the whole of
Monique Fougère-Rifot+4 more
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It is generally accepted that plastids first arose by acquisition of photosynthetic prokaryotic endosymbionts by non-photosynthetic eukaryotic hosts. It is also accepted that photosynthetic eukaryotes were acquired on several occasions as endosymbionts by non-photosynthetic eukaryote hosts to form secondary plastids.
Adrian C. Barbrook+4 more
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Evolution: The plasticity of plastids
Many chloroplast-bearing plants and algae lost their photosynthetic activity during evolution but retained their chloroplasts for other functions. A group of dinoflagellate algae apparently lost one half of their photosynthetic machinery but retained the other, providing a novel mechanism for light perception.
Howe, Christopher J+2 more
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The chloroplast min system functions differentially in two specific nongreen plastids in Arabidopsis thaliana. [PDF]
The nongreen plastids, such as etioplasts, chromoplasts, etc., as well as chloroplasts, are all derived from proplastids in the meristem. To date, the Min system members in plants have been identified as regulators of FtsZ-ring placement, which are ...
Peng Wang+8 more
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