Morère-Le Paven, M.-C.; Clochard, T.; Limami, A.M. NPF and NRT2 from Pisum sativum Potentially Involved in Nodule Functioning: Lessons from Medicago truncatula and Lotus japonicus. Plants2024, 13, 322.
Morère-Le Paven, M.-C.; Clochard, T.; Limami, A.M. NPF and NRT2 from Pisum sativum Potentially Involved in Nodule Functioning: Lessons from Medicago truncatula and Lotus japonicus. Plants 2024, 13, 322.
Morère-Le Paven, M.-C.; Clochard, T.; Limami, A.M. NPF and NRT2 from Pisum sativum Potentially Involved in Nodule Functioning: Lessons from Medicago truncatula and Lotus japonicus. Plants2024, 13, 322.
Morère-Le Paven, M.-C.; Clochard, T.; Limami, A.M. NPF and NRT2 from Pisum sativum Potentially Involved in Nodule Functioning: Lessons from Medicago truncatula and Lotus japonicus. Plants 2024, 13, 322.
Abstract
In addition to absorbing nitrogen from the soil, legumes have the ability to use atmospheric N2 through symbiotic nitrogen fixation. Therefore, legumes have developed mechanisms regulating nodulation in response to the amount of nitrate in the soil; in the presence of high nitrate concentrations, nodulation is inhibited while low nitrate concentrations stimulate nodulation and nitrogen fixation. This allows the legumes to switch from soil nitrogen acquisition to symbiotic nitrogen fixation. Recently, a particular interest has been given to the nitrate transporters, such as NPF or NRT2, having a role in the functioning of nodules. Nitrate transporters of the two model plants, Lotus japonicus and Medicago truncatula, shown to have a positive and/or a negative role in nodule functioning, depending on nitrate concentration, are presented in this review. Also, by exploiting available genomic and transcriptomic data in the literature we have identified the complete PsNPF family in Pisum sativum (69 sequences previously described and 21 new that we have annotated) and putative nitrate transporters candidate for playing a role in nodule functioning in P. sativum.
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