Nitric oxide-fixation in plants: A new pathway enabling the use of nitric oxide as nitrogen source

ABSTRACT: Of all the essential nutrients, nitrogen is the one most often limiting for plant growth. Nitrogen can be taken up by plants in two ways. One possibility is through ammonium and nitrate, which are the predominate inorganic forms of nitrogen in soils. The second possibility is the uptake of air-born nitrogen through plant-associated mircoorganisms in root nodules. The majority of plants able to form such nitrogen-fixing root nodules are in the legume family Fabaceae. Here we present a third possibility M-bM-^@M-^S a new pathway, termed as nitric oxide (NO)-fixation pathway, which allows plants to fix atmospheric NO and to use it for better growth and development. We identified non-symbiotic hemoglobin class 1 (AtGLB1) and class 2 (AtGLB2) as key proteins of the NO-fixation pathway. In an NO

ORGANISM(S): Arabidopsis thaliana

SUBMITTER: Gitto Kuruthukulangarakoola 

PROVIDER: E-GEOD-45576 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress