Phytoplasmas Analysis
Mostrando 13-15 de 15 artigos, teses e dissertações.
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13. Sequence heterogeneity in the two 16S rRNA genes of Phormium yellow leaf phytoplasma.
Phormium yellow leaf (PYL) phytoplasma causes a lethal disease of the monocotyledon, New Zealand flax (Phormium tenax). The 16S rRNA genes of PYL phytoplasma were amplified from infected flax by PCR and cloned, and the nucleotide sequences were determined. DNA sequencing and Southern hybridization analysis of genomic DNA indicated the presence of two copies
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14. Metabolic Discrimination of Catharanthus roseus Leaves Infected by Phytoplasma Using 1H-NMR Spectroscopy and Multivariate Data Analysis1
A comprehensive metabolomic profiling of Catharanthus roseus L. G. Don infected by 10 types of phytoplasmas was carried out using one-dimensional and two-dimensional NMR spectroscopy followed by principal component analysis (PCA), an unsupervised clustering method requiring no knowledge of the data set and used to reduce the dimensionality of multivariate da
American Society of Plant Biologists.
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15. The first phytoplasma RNase P RNA provides new insights into the sequence requirements of this ribozyme
A high variability of RNase P RNA structures is seen among members of the Mycoplasma group. To gain further insight into the structure–function relations of this ribozyme, we have searched for the RNase P RNA gene from more distant relatives, the phytoplasmas. These mycoplasma-like organisms are the aetiological agents of many severe plant diseases.
Oxford University Press.