Plant chloroplasts probably originate from an endosymbiosis event between a photosynthetic bacteria and a eucaryotic cell. The proper functioning of this association requires a high level of integration between the chloroplastic genome and the plant cell genome. Many chloroplastic genes have been transferred to the nucleus of the host cell and the proteins coded by these genes are imported into the chloroplast. Chloroplastic activity also regulates the expression of these genes at the transcriptional and post-transcriptional levels. The importation of nucleic acids from the host cell into the chloroplast has never been observed. This work show that the mRNA coding for the eucaryotic translation factor 4E, an essential regulator of translation, enters the chloroplast in four different plant species, and is located in the stroma. Furthermore, the localization in the chloroplast of an heterologous GFP mRNA fused to the eIF4E RNA was also observed.
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http://dx.doi.org/10.1016/j.febslet.2007.07.017 | DOI Listing |
Front Plant Sci
December 2024
Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University, Taizhou, China.
, native to North America, is an invasive species in many areas of the world, where it causes serious damage to natural ecosystems and economic losses. However, a dearth of genetic resources and molecular markers has hampered our understanding of its invasion history. Here, we assembled 40 complete chloroplast genomes of species, including 21 individuals, 15 individuals, and four individuals, the sizes of which ranged from 152,412 bp to 153,170 bp.
View Article and Find Full Text PDFFood Sci Biotechnol
January 2025
Agriculture and Life Sciences Research Institute, Kangwon National University, Chuncheon, Republic of Korea.
Unlabelled: (Arabica) and (Robusta) are valuable agricultural products traded worldwide. In this study, we designed specific primer pairs for Arabica and Robusta using chloroplast genes to distinguish and quantify the two types of coffee beans. We assessed the specificity, sensitivity, and applicability of the qRT-PCR assay using all the primer pairs.
View Article and Find Full Text PDFPlant Cell Environ
January 2025
Chongqing Key Laboratory of Crop Molecular Improvement, Rice Research Institute, Academy of Agricultural Sciences, Southwest University, Chongqing, China.
Elucidating the mechanisms underlying heat tolerance in rice (Oryza Sativa. L) is vital for adapting this crop to rising global temperature while increasing yields. Here, we identified a rice mutant, high temperature tolerance 1 (htt1), with high survival rates under heat stress.
View Article and Find Full Text PDFPlant Sci
January 2025
College of Life Science, Shihezi University, Shihezi 832000, PR China. Electronic address:
Photosynthesis is essential for the accumulation of organic compounds in plant leaves. Study of photosynthesis in the leaves of Broussonetia papyrifera is crucial for enhancing its biomass production, growth, and development. Here, we cloned the SikPsaF gene associated with photosynthesis from Saussurea involucrata and constructed a vector that was introduced into B.
View Article and Find Full Text PDFBMC Plant Biol
January 2025
Institute of Tropical Horticulture Research, Hainan Academy of Agricultural Sciences, Haikou, 571100, China.
Background: Tea-oil Camellia within the genus Camellia is renowned for its premium Camellia oil, often described as "Oriental olive oil". So far, only one partial mitochondrial genomes of Tea-oil Camellia have been published (no main Tea-oil Camellia cultivars), and comparative mitochondrial genomic studies of Camellia remain limited.
Results: In this study, we first reconstructed the entire mitochondrial genome of C.
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