Vibrio fischeri siderophore production drives competitive exclusion during dual‐species growth
نویسندگان
چکیده
منابع مشابه
Vibrio fischeri exhibit the growth advantage in stationary-phase phenotype.
Vibrio fischeri are bioluminescent marine bacteria that can be isolated from their symbiotic animal partners or from ocean water. A V. fischeri population increases exponentially inside the light organ of the Hawaiian bobtail squid (Euprymna scolopes) while the host is quiescent during the day. This bacterial light organ population reaches stationary phase and then remains high during the night...
متن کاملPopulation dynamics of Vibrio fischeri during infection of Euprymna scolopes.
The luminous bacterium Vibrio fischeri colonizes a specialized light-emitting organ within its squid host, Euprymna scolopes. Newly hatched juvenile squid must acquire their symbiont from ambient seawater, where the bacteria are present at low concentrations. To understand the population dynamics of V. fischeri during colonization more fully, we used mini-Tn7 transposons to mark bacteria with a...
متن کاملThe evolution of siderophore production as a competitive trait.
Microbes have the potential to be highly cooperative organisms. The archetype of microbial cooperation is often considered to be the secretion of siderophores, molecules scavenging iron, where cooperation is threatened by "cheater" genotypes that use siderophores without making them. Here, we show that this view neglects a key piece of biology: siderophores are imported by specific receptors th...
متن کاملVibrio fischeri flavohaemoglobin protects against nitric oxide during initiation of the squid-Vibrio symbiosis.
Nitric oxide (NO) is implicated in a wide range of biological processes, including innate immunity against pathogens, signal transduction and protection against oxidative stress. However, its possible roles in beneficial host-microbe associations are less well recognized. During the early stages of the squid-vibrio symbiosis, the bacterial symbiont Vibrio fischeri encounters host-derived NO, wh...
متن کاملکلون سازی مولکولی ژن های luxA وluxB باکتری Vibrio fischeri
پرتوافکنی زیستی در باکتری ها پدیده ای است که توسط آنزیم های لوسی فراز سازماندهی می گردد. این آنزیم ها به صورت هترودایمری متشکل از زیر واحدهای α و β هستند که توسط ژن های luxA و luxB رمز شده و همراه با ژن های luxCDE رمز کننده پروتئین های مورد نیاز جهت سنتز سوبسترای آلدئیدی، اپران lux باکتریVibrio fischeri را تشکیل می دهند. در تحقیق حاضر ناحیه کروموزومی واجد ژن های luxA و luxB باکتری Vibri...
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ژورنال
عنوان ژورنال: Molecular Microbiology
سال: 2020
ISSN: 0950-382X,1365-2958
DOI: 10.1111/mmi.14509