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In Star Trek, the Trill were a race of humanoids who incorporated a long-living symbiont. One of them was a main character on the series Star Trek: Deep Space Nine . In the series Stargate SG-1 , both the principal villains, the Goa'uld and their benevolent versions, the Tok'ra were symbionts who grafted themselves into the human nervous system.
Trill symbiont in Star Trek: Deep Space Nine, a symbiotic life form that gives its host all the memories of its previous hosts; U
For example, in lichens, which consist of fungal and photosynthetic symbionts, the fungal partners cannot live on their own. [ 11 ] [ 19 ] [ 20 ] [ 21 ] The algal or cyanobacterial symbionts in lichens, such as Trentepohlia , can generally live independently, and their part of the relationship is therefore described as facultative (optional ...
An iconic example is the case for blood-feeding or sap-feeding insects, which often depend on one or several bacterial symbionts to thrive on a resource that is abundant in sugar, but lacks essential amino-acids or vitamins. [141] Another example is the association of Fabaceae with nitrogen-fixing bacteria. The compound beneficiary to the host ...
An example of horizontal transmission is the deep sea tube worm and its symbiont. [7] The second type of transmission is vertical transmission in which the symbiont is passed down from the parent to the offspring and there is no aposymbiotic phase. [ 7 ]
An example of a horizontally transmitted symbiont with a high specificity recognition and acquisition method is the Rhizobia-Legume symbiosis. The establishment of the symbiosis begins with the aposymbiotic plant releasing flavinoids that are detected by a specific Rhizobium species and triggers the induction of nod genes in the bacterium. [ 6 ]
An example is nitrogen-fixing bacteria in certain plant roots, such as pea aphid symbionts. A third type is mixed-mode transmission, where symbionts move horizontally for some generations, after which they are acquired vertically. [26] [27] [28] Wigglesworthia, a tsetse fly symbiont, [28] is vertically transmitted (via mother's milk). [28]
President Snakes from the 2015 nerd-folk album of the same name is five snakes running as one fictional politician.. This list of fictional snakes is subsidiary to the list of fictional animals and is a collection of various notable serpentine characters that appear in various works of fiction.