The Chemotactic Response of Vibrio cholerae 0139 to The Mucilaginous Sheath of Blue-Green Algae Is Mediated by a Combination of Sheath Components.

Rahman, Mizanur; Islam, Mohammad Sirajul; Khan, Md. Sakirul Islam; Rahim, Zeaur

doi:10.1264/jsme2.2002.18

Cited by 4 publications

(3 citation statements)

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“…For example, as mentioned above, algal cells exude a zone of enriched organic material (Bell and Mitchell, 1972; Paerl and Pinckney, 1996). Several other processes can also generate ephemeral patches of dissolved nutrients, and it is likely that many bacteria, including vibrios, can chemotax toward these and take advantage of the elevated nutrient concentrations (e.g., for vibrios, Sjoblad and Mitchell, 1979; Mizanur et al, 2001, 2002). In addition, diverse processes are responsible for the formation of suspended particulate organic matter that can be colonized and degraded by bacteria.…”

Section: Vibrio Proliferation In the Water Columnmentioning

confidence: 99%

“…In return, their oxidative metabolism both relieves oxygen inhibition of nitrogen fixation (which would otherwise limit rapid algal growth), and generates carbon dioxide for photosynthetic assimilation (Paerl and Gallucci, 1985 ). For V. cholerae , chemotactic preference for components of the Anabaena mucilaginous sheath has been demonstrated (Mizanur et al, 2002 ). Furthermore, investigators have shown that both chemotaxis to and survival on Anabaena depend on V. cholerae 's expression of mucinase (Islam et al, 2002 , 2006 ).…”

Section: Biological Niches For Vibriomentioning

confidence: 99%

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Associations and dynamics of Vibrionaceae in the environment, from the genus to the population level

2014

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The Vibrionaceae, which encompasses several potential pathogens, including V. cholerae, the causative agent of cholera, and V. vulnificus, the deadliest seafood-borne pathogen, are a well-studied family of marine bacteria that thrive in diverse habitats. To elucidate the environmental conditions under which vibrios proliferate, numerous studies have examined correlations with bulk environmental variables—e.g., temperature, salinity, nitrogen, and phosphate—and association with potential host organisms. However, how meaningful these environmental associations are remains unclear because data are fragmented across studies with variable sampling and analysis methods. Here, we synthesize findings about Vibrio correlations and physical associations using a framework of increasingly fine environmental and taxonomic scales, to better understand their dynamics in the wild. We first conduct a meta-analysis to determine trends with respect to bulk water environmental variables, and find that while temperature and salinity are generally strongly predictive correlates, other parameters are inconsistent and overall patterns depend on taxonomic resolution. Based on the hypothesis that dynamics may better correlate with more narrowly defined niches, we review evidence for specific association with plants, algae, zooplankton, and animals. We find that Vibrio are attached to many organisms, though evidence for enrichment compared to the water column is often lacking. Additionally, contrary to the notion that they flourish predominantly while attached, Vibrio can have, at least temporarily, a free-living lifestyle and even engage in massive blooms. Fine-scale sampling from the water column has enabled identification of such lifestyle preferences for ecologically cohesive populations, and future efforts will benefit from similar analysis at fine genetic and environmental sampling scales to describe the conditions, habitats, and resources shaping Vibrio dynamics.

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Section: Vibrio Proliferation In the Water Columnmentioning

confidence: 99%

Section: Biological Niches For Vibriomentioning

confidence: 99%

Associations and dynamics of Vibrionaceae in the environment, from the genus to the population level

2014

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“…Do mesmo modo, Thompson et al (2008) No entanto, observou-se que, com a análise individual e concatenada dos genes, a população avaliada foi homogênea, agrupando-se preferencialmente entre elas mesmas do que com as sequências da base de dados do MLST. De acordo com Zo, et al (2008) e Keymer, et al (2009), a variabilidade genética em V. cholerae está associada ao polimorfismo fenotípico e aos diferentes nichos ecológicos que ocupa, como superfícies biológicas aquáticas, plantas e cianobactérias filamentosas (FROELICH et al, 2012;ISLAM et al, 1990;2002;LYONS et al, 2007;MIZANUR et al, 2002;.…”

Section: Confirmação De V Cholerae Utilizando Métodos Molecularesunclassified

Caracterização, detecção e quantificação de <i>Vibrio cholerae</i> em amostras de água.

Vargas¹

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Fungal volatiles mediate cheese rind microbiome assembly

Cosetta

Kfoury

Robbat

et al. 2020

Environmental Microbiology

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Summary In vitro studies in plant, soil, and human systems have shown that microbial volatiles can mediate microbe–microbe or microbe–host interactions. These previous studies have often used artificially high concentrations of volatiles compared to in situ systems and have not demonstrated the roles volatiles play in mediating community‐level dynamics. We used the notoriously volatile cheese rind microbiome to identify bacteria responsive to volatiles produced by five widespread cheese fungi. Vibrio casei had the strongest growth stimulation when exposed to all fungi. In multispecies community experiments, fungal volatiles caused a shift to a Vibrio‐dominated community, potentially explaining the widespread occurrence of Vibrio in surface‐ripened cheeses. RNA sequencing identified activation of the glyoxylate shunt as a possible mechanism underlying volatile‐mediated growth promotion and community assembly. Our study demonstrates how airborne chemicals could be used to control the composition of microbiomes and illustrates how volatiles may impact the development of cheese rinds.

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The Chemotactic Response of Vibrio cholerae 0139 to The Mucilaginous Sheath of Blue-Green Algae Is Mediated by a Combination of Sheath Components.

Cited by 4 publications

References 27 publications

Associations and dynamics of Vibrionaceae in the environment, from the genus to the population level

Associations and dynamics of Vibrionaceae in the environment, from the genus to the population level

Caracterização, detecção e quantificação de <i>Vibrio cholerae</i> em amostras de água.

Fungal volatiles mediate cheese rind microbiome assembly

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