Cytokinin nodule

Murray JD, Karas BJ, Sato S, Tabata S, Amyot L, Szczyglowski K. 2007. A cytokinin perception mutant colonized by Rhizobium in the absence of nodule organogenesis. Science 315 101-104. 

Tirichine L, Sandal N, Madsen LH, Radutoiu S, Albrektsen AS, Sato S, Asamizu E, Tabata S, Stougaard J. 2007 A gain-of-function mutation in a cytokinin receptor triggers spontaneous root nodule organogenesis. Science 315 104-107. 

Syono K, Newcomb W, Torrey JG (1976) Cytokinin production in relation to the development of pea root nodules. Can J Bot 54 2155-2162... 

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