Advanced Technologies for Detection and Elimination of Pathogens

Niemira, Brendan A.; Zhang, Howard Q.

doi:10.1016/b978-0-12-374186-8.00017-3

Cited by 1 publication

(1 citation statement)

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“…Human pathogens, such as E. coli and Salmonella enterica , can form biofilms on fruits and vegetables surviving off exudate released from lysed plant cells. Enterobacteriaceae are found on sprouts, green leafy vegetables and fruits, such as melons and tomatoes, where they adhere to, but typically do not cause disease symptoms ( Doyle and Erickson, 2008 ; Niemira and Zhang, 2009 ). However, S. enterica serovar Typhimurium acts as phytopathogen in maize and mung bean plants when inoculated onto non-germinated seeds ( Singh et al, 2004 , 2005 ).…”

Section: Plant–bacteria Interactions Of Bc Producersmentioning

confidence: 99%

Establishing a Role for Bacterial Cellulose in Environmental Interactions: Lessons Learned from Diverse Biofilm-Producing Proteobacteria

2015

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Bacterial cellulose (BC) serves as a molecular glue to facilitate intra- and inter-domain interactions in nature. Biosynthesis of BC-containing biofilms occurs in a variety of Proteobacteria that inhabit diverse ecological niches. The enzymatic and regulatory systems responsible for the polymerization, exportation, and regulation of BC are equally as diverse. Though the magnitude and environmental consequences of BC production are species-specific, the common role of BC-containing biofilms is to establish close contact with a preferred host to facilitate efficient host–bacteria interactions. Universally, BC aids in attachment, adherence, and subsequent colonization of a substrate. Bi-directional interactions influence host physiology, bacterial physiology, and regulation of BC biosynthesis, primarily through modulation of intracellular bis-(3′→5′)-cyclic diguanylate (c-di-GMP) levels. Depending on the circumstance, BC producers exhibit a pathogenic or symbiotic relationship with plant, animal, or fungal hosts. Rhizobiaceae species colonize plant roots, Pseudomonadaceae inhabit the phyllosphere, Acetobacteriaceae associate with sugar-loving insects and inhabit the carposphere, Enterobacteriaceae use fresh produce as vehicles to infect animal hosts, and Vibrionaceae, particularly Aliivibrio fischeri, colonize the light organ of squid. This review will highlight the diversity of the biosynthesis and regulation of BC in nature by discussing various examples of Proteobacteria that use BC-containing biofilms to facilitate host–bacteria interactions. Through discussion of current data we will establish new directions for the elucidation of BC biosynthesis, its regulation and its ecophysiological roles.

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Section: Plant–bacteria Interactions Of Bc Producersmentioning

confidence: 99%