نتایج جستجو برای: plastid rpl32
تعداد نتایج: 5117 فیلتر نتایج به سال:
Algae with secondary plastids of a red algal origin, such as ochrophytes (photosynthetic stramenopiles), are diverse and ecologically important, yet their evolutionary history remains controversial. We sequenced plastid genomes of two ochrophytes, Ochromonas sp. CCMP1393 (Chrysophyceae) and Trachydiscus minutus (Eustigmatophyceae). A shared split of the clpC gene as well as phylogenomic analyse...
PREMISE OF THE STUDY Predictable chloroplast DNA (cpDNA) sequences have been listed for the shallowest taxonomic studies in plants. We investigated whether plastid regions that vary between closely allied species could be applied for intraspecific studies and compared the variation of these plastid segments with two nuclear regions. METHODS We screened 16 plastid and two nuclear intronic regi...
Plastids are the organelles derived from a cyanobacterium through endosymbiosis. Unlike mitochondria, plastids are not found in all eukaryotes, but their evolution has an added layer of complexity since plastids have moved between eukaryotic lineages by secondary and tertiary endosymbiotic events. This complex history, together with the genetic integration between plastids and their host, has l...
A few reports have appeared concerning the synthesis of plastid lipids. Stumpf and James (17) and Stumpf et al. (18) found that both saturated and unsaturated fatty acids may be formed from acetate by chloroplast preparations. However, in some bluegreen algae, Bloch et al. (4) found that long-chain monounsaturates are synthesized by oxidative desaturation of corresponding saturates. Kates (9) s...
Although the chloroplast genome contains many noncoding regions, relatively few have been exploited for interspecific phylogenetic and intraspecific phylogeographic studies. In our recent evaluation of the phylogenetic utility of 21 noncoding chloroplast regions, we found the most widely used noncoding regions are among the least variable, but the more variable regions have rarely been employed...
Individual plastids of vascular plants have generally been considered to be discrete autonomous entities that do not directly communicate with each other. However, in transgenic plants in which the plastid stroma was labeled with green fluorescent protein (GFP), thin tubular projections emanated from individual plastids and sometimes connected to other plastids. Flow of GFP between interconnect...
Plastid stromules are membrane-bound protrusions of the plastid envelope that contain soluble stroma. Stromules are often found connecting plastids within a cell and fluorescence recovery after photobleaching (FRAP) experiments have demonstrated that green fluorescent protein (GFP) can move between plastids via these connections. In this report, the ability of endogenous plastid proteins to tra...
Here we report the characterization of the Chlamydomonas reinhardtii gene ARG9, encoding the plastid resident N-acetyl ornithine aminotransferase, which is involved in arginine synthesis. Integration of an engineered ARG9 cassette in the plastid chromosome of the nuclear arg9 mutant restores arginine prototrophy. This suggests that ARG9 could be used as a new selectable marker for plastid trans...
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