Gene expression evaluation. Technician (left) and plant pathologist loading samples for quantitative polymerase chain reaction (PCR) analysis of Pseud


Gene expression evaluation. Technician (left) and plant pathologist loading samples for quantitative polymerase chain reaction (PCR) analysis of Pseudomonas fluorescens Pf-5 bacteria genes. PCR is a procedure commonly used in molecular biology that allows the estimation of the amount of a given gene sequence present in a sample. It is often applied to quantitatively determine levels of gene expression. The Pf-5 strain of P. fluorescens has biocontrol properties, protecting the roots of some plant species against parasitic fungi, as well as some nematodes.


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Photo credit: © STEPHEN AUSMUS/US DEPARTMENT OF AGRICULTURE/SCIENCE PHOTO LIBRARY / Alamy / Afripics
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