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Phytoplasmas is a class of bacteria that is pathogenic to a wide variety of plant species, and was first identified in 1967. It is characterized by its small genome size, ranging from 0.3 to 1.2 micrometers, and polymorphic polymorphism. It is important for agriculture to identify the factors that contribute to its pathogenicity, as well as to identify
Dr. Shankar Hemanta Gogoi +1 more
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Dr. Shankar Hemanta Gogoi +1 more
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Mapping the Phytoplasma Chromosome
2012Physical and genetic mapping of the phytoplasma chromosome can be a useful tool in a genome sequencing project in order to assemble the in silico-predicted contigs robustly. Mapping consists of four distinct steps: preparation of phytoplasma chromosomes from infected plants, single- and double-digestion of chromosomes with rare-cutting restriction ...
Malembic-Maher, Sylvie, Carle, Patricia
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Transcriptomic Analyses of Phytoplasmas
2018Transcriptomic analyses addressed to study phytoplasma gene expression may present few difficulties due to the uncultivable nature of these intracellular, obligate pathogens. While RNA extraction from insect vectors does not imply any particular adaptation of the protocols used in most commercial kits, RNA isolation from phytoplasma-infected plants can
Pacifico D, Abba S, Palmano S
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Phytoplasma Diseases of Palms [PDF]
, 2018 Palms are native to tropical and subtropical areas of the world and con-tribute to the ecology and economy of many countries. Phytoplasmas which are cell-wall-less prokaryotes are associated with diseases of significant economic importance to palms worldwide.
Yankey, Egya Ndede +4 more
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Phytopathogenic Mollicutes, 2023
The use of ‘Candidatus Phytoplasma’ as provisional taxon is helping both epidemiological studies and quarantine rules settling. A focused search in database evidences discrepancies and problems for strains enclosed in ‘Ca. P. aurantifolia’ and ‘Ca. P. australasia’ that share very often the same geographic distribution in Asian and Australian countries.
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The use of ‘Candidatus Phytoplasma’ as provisional taxon is helping both epidemiological studies and quarantine rules settling. A focused search in database evidences discrepancies and problems for strains enclosed in ‘Ca. P. aurantifolia’ and ‘Ca. P. australasia’ that share very often the same geographic distribution in Asian and Australian countries.
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INSECT VECTORS OF PHYTOPLASMAS
Annual Review of Entomology, 2006▪ Abstract Plant diseases caused by, or associated with, phytoplasmas occur in hundreds of commercial and native plants, causing minor to extensive damage. Insect vectors, primarily leafhoppers, planthoppers, and psyllids, have been identified for relatively few phytoplasma diseases, limiting the capacity of managers to make informed decisions to ...
Phyllis G, Weintraub, LeAnn, Beanland
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Phytoplasma Transmission by Seed
2019The transmission of phytoplasmas by seed was reported in several herbaceous and some woody plant species. The seedlings were usually analyzed for the presence of phytoplasmas in different stages of growth by nested-PCR/RFLP analysis and phytoplasmas belonging to different ribosomal groups according with species and geographical distribution were ...
Satta E., S. Paltrinieri, A. Bertaccini
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Candidatus Phytoplasma asteris (yellow disease phytoplasmas).
2021Abstract Aster yellows (AY) group phytoplasmas affect plants by causing a general reduction in quantity and quality of yield. The most severely affected hosts are carrot, lettuce, onion, spinach and several ornamental crops, including aster, gladiolus, hydrangea, chrysanthemum and purple coneflower.
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Phytoplasma diseases of sugarcane
Sugar Tech, 2002Sugarcane is severely affected by yellows and decline diseases of phytoplasmal etiology. These diseases which are of considerable economic importance, cause similar symptoms but differ in the identity of the associated phytoplasmas, vectorship and geographic distribution.
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Q-Bank Phytoplasma: A DNA Barcoding Tool for Phytoplasma Identification
2015DNA barcoding is an identification method based on comparison of a short DNA sequence with known sequences from a database. A DNA barcoding tool has been developed for phytoplasma identification. This phytoplasma DNA barcoding protocol based on the tuf gene has been shown to identify phytoplasmas belonging to the following groups: 16SrI, 16SrII ...
CONTALDO, NICOLETTA +4 more
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