Symbiosis and Pathogenicity of Actinobacteria

Anteneh, Yitayal S; Franco, Christopher M. M.

doi:10.1007/978-3-319-60339-1_9

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Figure 1 Khat Plant1

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2022

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Cited by 2 publications

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“…As a whole, there are several components that have been separated and examined from C. edulis; 7-14% of the weight is contributed by sterols, tanins, alkaloids, and flavonoids 23,26 . The plant chemistry includes a host of amino acids, trace levels of vitamins and toxic metals like lead 26 . The three main alkaloids found in khat leaves are S-α-aminopropiophenene (cathinone), norpseudoephedrine (cathine), and norephedrine (figure 2) 23 .…”

Section: Figure 1 Khat Plantmentioning

confidence: 99%

The Identification of Volatile Organic Compounds from Synthetic Cathinone Derivatives for the Development of Odor Mimic Training Aids

Francis¹

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Section: Figure 1 Khat Plantmentioning

confidence: 99%

The Identification of Volatile Organic Compounds from Synthetic Cathinone Derivatives for the Development of Odor Mimic Training Aids

Francis¹

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Multiple bacterial partners in symbiosis with the nudibranch mollusk Rostanga alisae

Zhukova

Елисейкина

Balakirev

et al. 2022

Sci Rep

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The discovery of symbiotic associations extends our understanding of the biological diversity in the aquatic environment and their impact on the host’s ecology. Of particular interest are nudibranchs that unprotected by a shell and feed mainly on sponges. The symbiotic association of the nudibranch Rostanga alisae with bacteria was supported by ample evidence, including an analysis of cloned bacterial 16S rRNA genes and a fluorescent in situ hybridization analysis, and microscopic observations. A total of 74 clones belonging to the phyla α-, β-, γ-Proteobacteria, Actinobacteria, and Cyanobacteria were identified. FISH confirmed that bacteriocytes were packed with Bradyrhizobium, Maritalea, Labrenzia, Bulkholderia, Achromobacter, and Stenotrophomonas mainly in the foot and notum epidermis, and also an abundance of Synechococcus cyanobacteria in the intestinal epithelium. An ultrastructural analysis showed several bacterial morphotypes of bacteria in epidermal cells, intestine epithelium, and in mucus layer covering the mollusk body. The high proportion of typical bacterial fatty acids in R. alisae indicated that symbiotic bacteria make a substantial contribution to its nutrition. Thus, the nudibranch harbors a high diversity of specific endo- and extracellular bacteria, which previously unknown as symbionts of marine invertebrates that provide the mollusk with essential nutrients. They can provide chemical defense against predators.

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Symbiosis and Pathogenicity of Actinobacteria

Cited by 2 publications

References 250 publications

The Identification of Volatile Organic Compounds from Synthetic Cathinone Derivatives for the Development of Odor Mimic Training Aids

The Identification of Volatile Organic Compounds from Synthetic Cathinone Derivatives for the Development of Odor Mimic Training Aids

Multiple bacterial partners in symbiosis with the nudibranch mollusk Rostanga alisae

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