Didymium
Mostrando 13-17 de 17 artigos, teses e dissertações.
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13. Complementation between Two Color Mutants in a True Slime Mold, DIDYMIUM IRIDIS
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14. Directional Cytotoxic Reactions between Incompatible Plasmodia of DIDYMIUM IRIDIS
Incompatibility reactions of somatic cells in the myxomycete Didymium iridis are controlled by several loci displaying simple dominance. Phenotypically dissimilar plasmodia generally undergo a temporary fusion which is quickly terminated by a cytotoxic reaction, whereas phenotypically similar ones undergo fusion which is not followed by such reactions. The s
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15. An overhanging 3' terminus is a conserved feature of telomeres.
The reactivity of single-stranded thymidines with osmium tetraoxide was used to demonstrate the existence of a terminal overhang of the G-rich strand of telomeres from two distantly related eucaryotes, the ciliated protozoan Tetrahymena spp. and the acellular slime mold Didymium spp. Conservation of a G-strand overhang at the molecular terminus of telomeres
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16. Flanking sequences with an essential role in hydrolysis of a self-cleaving group I-like ribozyme
DiGIR1 is a group I-like ribozyme derived from the mobile twin ribozyme group I intron DiSSU1 in the nuclear ribosomal DNA of the myxomycete Didymium iridis. This ribozyme is responsible for intron RNA processing in vitro and in vivo at two internal sites close to the 5′-end of the intron endonuclease open reading frame and is a unique example of a group I
Oxford University Press.
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17. Two group I ribozymes with different functions in a nuclear rDNA intron.
DiSSU1, a mobile intron in the nuclear rRNA gene of Didymium iridis, was previously reported to contain two independent catalytic RNA elements. We have found that both catalytic elements, renamed GIR1 and GIR2, are group I ribozymes, but with differing functionality. GIR2 carries out the several reactions associated with self-splicing. GIR1 carries out a hyd