GEO DataSets

(Submitter supplied) The marine bacterium Vibrio fischeri requires flagellar motility to undergo symbiotic initiation with its host, the Hawaiian bobtail squid Euprymna scolopes. We sought to identify the genes activated by the sigma54-dependent flagellar master regulator, FlrA, in V. fischeri, thereby determining the flagellar regulon in this model symbiont.

Organism:

Aliivibrio fischeri

Type:

Expression profiling by array

Platform:

GPL5074

4 Samples

Download data: CEL

(Submitter supplied) The bioluminescent bacterium Vibrio fischeri forms a mutually beneficial symbiosis with the Hawaiian bobtail squid, Euprymna scolopes, in which the bacteria, housed inside a specialized light organ, produce light used by the squid in its nocturnal activities. Upon hatching, E. scolopes juveniles acquire V. fischeri from the seawater through a complex process that requires, among other factors, chemotaxis by the bacteria along a gradient of N-acetylated sugars into the crypts of the light organ, the niche in which the bacteria reside. more...

Organism:

Aliivibrio fischeri

Type:

Expression profiling by high throughput sequencing

Platform:

GPL28616

6 Samples

Download data: TXT

(Submitter supplied) We report the full transcriptome (RNA-Seq) of Vibrio fischeri ES114 in rich medium, seawater, and after venting from the Hawaiian bobtail squid Euprymna scolopes. We also report the effects of ribodepletion on low-biomass samples, down to input amount of 1ng total RNA.

Organism:

Aliivibrio fischeri ES114

Type:

Expression profiling by high throughput sequencing; Non-coding RNA profiling by high throughput sequencing

Platform:

GPL21766

23 Samples

Download data: CSV

(Submitter supplied) Beneficial microbial symbionts are often horizontally acquired by their animal hosts from environmental sources, requiring the symbionts to complete a lifestyle transition from free-living in the environment to association with host tissues. In the model symbiosis between the Hawaiian bobtail squid and its microbial symbiont Vibrio fischeri, one mechanism used to make this transition during host colonization is the formation of biofilm-like aggregates on host mucosa. more...

Organism:

Aliivibrio fischeri

Type:

Expression profiling by high throughput sequencing

Platform:

GPL33575

15 Samples

Download data: TXT

(Submitter supplied) The light-organ symbiosis between the squid Euprymna scolopes and the luminous bacterium Vibrio fischeri offers the opportunity to decipher the hour-by-hour events that occur during the natural colonization of an animal's epithelial surface by its microbial partners. To determine the genetic basis of these events, a glass-slide microarray was used to characterize the light-organ transcriptome of juvenile squid in response to the initiation of symbiosis. more...

Organism:

Euprymna scolopes

Type:

Expression profiling by array

Platform:

GPL3825

45 Samples

Download data: GPR

(Submitter supplied) Vibrio campbellii is a gram-negative bacterial pathogen that is both free-living and a pathogen of marine organisms and exhibits swimming motility via a single, polar flagellum. Swimming motility is a critical virulence factor in V. campbellii pathogenesis, and disruption of the flagellar motor significantly decreases host mortality. However, while V. campbelli encodes homologs of flagellar and chemotaxis genes conserved by other members of the Vibrionaceae, the regulatory network governing these genes have not been explored. more...

Organism:

Vibrio campbellii

Type:

Expression profiling by high throughput sequencing

Platform:

GPL27117

15 Samples

Download data: TXT

(Submitter supplied) The innate immune response is the first line of defense for all animals to not only detect invading microbes and toxins but also sense and interface with the environment. One such environment that can significantly affect innate immunity is spaceflight. In this study, we explored the impact of microgravity stress on key elements of the NFκB innate immune pathway. The symbiosis between the bobtail squid Euprymna scolopes and its beneficial symbiont Vibrio fischeri was used as a model system under a simulated microgravity environment. more...

Organism:

Euprymna scolopes

Type:

Expression profiling by array

Platform:

GPL33929

96 Samples

Download data: RCC

(Submitter supplied) The bioluminescent bacterium Vibrio fischeri initiates a specific, persistent symbiosis in the light organ of the squid Euprymna scolopes. During the early stages of colonization, V. fischeri is exposed to host-derived nitric oxide (NO). While NO can be both an antimicrobial component of innate immunity and a common signaling molecule of eukaryotes, its roles in beneficial host-microbe associations remain undescribed. more...

Organism:

Aliivibrio fischeri

Type:

Expression profiling by array

Platform:

GPL5074

12 Samples

Download data: CEL, CHP