Pressure bomb

submitted by: schulzbu
This video is a visual 10 step instruction manual how to use a pressure bomb for measuring water pressure in the xylem of transpiring leaves. It is geared towards undergraduate students working in plant physiology labs as well as viewers who are interested in plant biology. Water in the xylem is under negative pressure. This tension can be measured by a “pressure bomb”. Tension pressure in a non-transpiring leaf is “equivalent” to water potential of cells surrounding the xylem...

PSI-Are my soybeans wearing different genes?

submitted by: schulzbu
The video PSI – Are my soybeans wearing different genes? is inspired by the popular TV show “CSI-crime scene investigations”. Here, however, the investigators are solving cases in the field of plant science investigations (PSI). The stunning phenomenon that soybean plants can survive herbicide treatments and grow on fields without weed competition is investigated using DNA extraction, Polymerase chain reaction (PCR), gene analysis etc. Transgenes are found that make the soybean plants...