… oxygen transfer evolved from hexacoordinate hemoglobins that … and pentacoordinate
hemoglobins in plants has poised them … to a molecular understanding of this important …

… -limited rate for molecules the respective sizes of oxygen and … too low to support an
oxygentransporting function, we proposed that it … The fossil record shows that stromatolites, …

… molecules are essential components in modern metabolic processes, such as electron transport
(cytochromes) and oxygen transport (hemoglobin… Some plants also use hemoglobin—in …

… oxygen transport in plants. Hence, we would expect to find … biotic haemoglobin genes and
a non-symbiotic plant haemoglobin … root haemoglobin may act as a signal molecule indicating …

… transfer from a bacterium ancestral to present day Chloroflexi. Unlike the 2/2 hemoglobins,
the evolution of the 3/3 hemoglobins … of the fossil dates with the dates provided by molecular …

… Thus a method of feedback control of oxygen transport by hemoglobin was "… evolution of
hemoglobin function a fundamental significance. The end results of the evolution of hemoglobin …

… of hemoglobin we immediately remember oxygen transport … that various plant hemoglobins
are good ‘molecular fossils’ … in the evolution from primordial hexacoordinate hemoglobins …

… the evolution of the oxygen-transport proteins and to … The oxygen carrier has been found
in bacteria, fungi, plants and animals, serving physiological roles ranging from oxygen transport …

… stabilizes a bound water molecule that must be removed for … oxygen dissociation rate
constants indicate that these nsHbs are unlikely to function in oxygen transport, while high oxygen …

… domains with plant or animal hemoglobins remains to be … O2-trap might have been harnessed
to the electron transport … Molecules of Lumbricus hemoglobin have a mass near 3,800 …