Nitrite is one of the players in the broad nitrogen biogeochemical cycle. This nitrogen oxo-
anion is involved in key pathways crucial to life on Earth and to the planetary “recycling” of …

Oxygen can fall to low concentrations within plant tissues, either because of environmental
factors that decrease the external oxygen concentration or because the movement of oxygen …

Waterlogging is a serious problem, which affects crop growth and yield in low lying rainfed
areas. The main cause of damage under waterlogging is oxygen deprivation, which affect …

Hemoglobins are ubiquitous in nature and among the best-characterized proteins [1–9].
Genetics has revealed crucial roles for human hemoglobins [10], but similar data are lacking …

Hemoglobin (Hb) occurs in all the kingdoms of living organisms. Its distribution is episodic
among the nonvertebrate groups in contrast to vertebrates. Nonvertebrate Hbs range from …

Microarray and RNA gel blot analyses were performed to identify Arabidopsis genes that
responded to nitrate at both low (250 μM) and high (5 to 10 mM) nitrate concentrations …

Neuroglobin is a recently discovered member of the globin superfamily that is suggested to
enhance the O 2 supply of the vertebrate brain. Spectral measurements with human and …

Plants, like animals, are obligate aerobes, but due to their inability to move, have evolved
adaptation mechanisms that enable them to survive short periods of low oxygen supply …

Ever since the identification by Hellriegel and Wilfarth (1888) of rhizobia as the source of
fixed nitrogen in root nodules of legumes, people have wondered whether or not plants …

We used DNA microarray technology to identify genes involved in the low-oxygen response
of Arabidopsis root cultures. A microarray containing 3500 cDNA clones was screened with …