Mortier V, Den Herder G, Whitford R et al (2010) CLE
peptides control Medicago truncatula nodulation
locally and systemically. Plant Physiol 153:222– 237
Nour-Eldin HH, Andersen TG, Burow M et al (2012)
NRT/PTR transporters are essential for translocation
of glucosinolate defence compounds to seeds. Nature
488:531– 534
Okamoto S, Ohnishi E, Sato S et al (2009) Nod factor/
nitrate-induced CLE genes that drive HAR1-mediated
systemic regulation of nodulation. Plant Cell Physiol
50:67– 77
Omrane S, Chiurazzi M (2009) A variety of regulatory
mechanisms are involved in the nitrogen-dependent
modulation of the nodule organogenesis program in
legume roots. Plant Sig Behav 4:1066– 1068
Reid DE, Ferguson BJ, Gresshoff PM (2011) Inoculation-
and nitrate-induced CLE peptides of soybean control
NARK-dependent nodule formation. Mol Plant
Microbe Interact 24:608– 618
Salehin M, Huang Y-S, Bagchi R et al (2013) Allelic
differences inMedicago truncatulaNIP/LATD mutants
correlate with their encoded proteins transport activities
in planta. Plant Signal Behav doi:10.4161/psb.22813
Sato S, Nakamura Y, Kanedo T et al (2008) Genome
structure of the legume,Lotus japonicus. DNA Res
15:227– 239
Takanashi K, Takahashi H, Sakurai N et al (2012) Tissue-
specific transcriptome analysis in nodules ofLotus
japonicus. Mol Plant Microbe Interact 25:869– 876
Tsay YF, Chiu CC, Tsai CB et al (2007) Nitrate
transporters and peptide transporters. FEBS Lett
581:2290– 2300
Urbański DF, Małolepszy A, Stougaard J et al (2012)
Genome-wide LORE1 retrotransposon mutagenesis
and high-throughput insertion detection in Lotus
japonicus. Plant J 69:731– 741
Wang X, Bian Y, Cheng K et al (2012) A comprehensive
differential proteomic study of nitrate deprivation in
Arabidopsisreveals complex regulatory networks of
plant nitrogen responses. J Proteome Res
11:2301– 2315
Waterworth WM, Bray CM (2006) Enigma variations for
peptides and their transporters in higher plants. Ann
Bot 98:1– 8
Zhang HM, Forde BG (1998) AnArabidopsisMADS box
gene that controls nutrient-induced changes in root
architecture. Science 279:407– 409
Zheng D, Han X, An Y et al (2013) The nitrate transporter
NRT2.1 functions in the ethylene response to nitrate
deficiency in Arabidopsis. Plant Cell Environ
36:1328– 1337
Zhou JJ, Theodoulou FL, Muldin I et al (1998) Cloning
and functional characterization of a Brassica napus
transporter that is able to transport nitrate and
histidine. J Biol Chem 273:12017– 12023136 V.T. Valkov and M. Chiurazzi