Complex sentence: It was found that "Rickettsia sp." used glutamate as a preferred carbon source, yet "Ehrlichia" used glutamine; this fact is most likely a result of glutamate being a highly charged molecule and some microbes cannot transport the molecule.
Split into simpler sentences: It was found that "Rickettsia sp." used glutamate as a preferred carbon source, yet "Ehrlichia" used glutamine. This fact is most likely a result of glutamate being a highly charged molecule and some microbes cannot transport the molecule.