title: Effects of strigolactone signaling on Arabidopsis growth under nitrogen deficient stress condition.
abstract: Strigolactones (SLs) are a group of terpenoid lactones found in plants that regulate diverse developmental phenomena. SLs are thought to be involved in the maintenance of phosphate homeostasis. In addition, SL signaling is required for the regulation of shoot branching by nitrogen supply in Arabidopsis. In this study, we evaluated the effects of SLs on nitrogen deficient-inducing phenomena (leaf senescence and reduction of plant weight) in Arabidopsis. SL-biosynthesis (max1-1) and SL-insensitive (atd14-1) mutants showed altered responses to nitrogen deficient in comparison with wild-type (WT) plants. Nitrogen deficient conditions led to alterations in the expression levels of SL biosynthesis genes (MAX3 and MAX4). These results indicate that SLs could be key mediators of plant growth response to nitrogen supply.
authors.affiliation: a Department of Bioscience , Faculty of Applied Bioscience, Tokyo University of Agriculture , 1-1-1 Sakuragaoka, Setagaya, Tokyo , 156-8502 , Japan.
authors.forename: Shinsaku
authors.initials: S
authors.lastname: Ito
authors.affiliation: a Department of Bioscience , Faculty of Applied Bioscience, Tokyo University of Agriculture , 1-1-1 Sakuragaoka, Setagaya, Tokyo , 156-8502 , Japan.
authors.forename: Ken
authors.initials: K
authors.lastname: Ito
authors.affiliation: a Department of Bioscience , Faculty of Applied Bioscience, Tokyo University of Agriculture , 1-1-1 Sakuragaoka, Setagaya, Tokyo , 156-8502 , Japan.
authors.forename: Naoko
authors.initials: N
authors.lastname: Abeta
authors.affiliation: a Department of Bioscience , Faculty of Applied Bioscience, Tokyo University of Agriculture , 1-1-1 Sakuragaoka, Setagaya, Tokyo , 156-8502 , Japan.
authors.forename: Ryo
authors.initials: R
authors.lastname: Takahashi
authors.affiliation: a Department of Bioscience , Faculty of Applied Bioscience, Tokyo University of Agriculture , 1-1-1 Sakuragaoka, Setagaya, Tokyo , 156-8502 , Japan.
authors.forename: Yasuyuki
authors.initials: Y
authors.lastname: Sasaki
authors.affiliation: a Department of Bioscience , Faculty of Applied Bioscience, Tokyo University of Agriculture , 1-1-1 Sakuragaoka, Setagaya, Tokyo , 156-8502 , Japan.
authors.forename: Shunsuke
authors.initials: S
authors.lastname: Yajima
mesh_terms: D017360:Arabidopsis / Q000187:drug effects / Q000235:genetics / Q000254:growth & development* / Q000502:physiology*; D002734:Chlorophyll / Q000378:metabolism; D018506:Gene Expression Regulation, Plant / Q000187:drug effects; D006575:Heterocyclic Compounds, 3-Ring / Q000494:pharmacology*; D007783:Lactones / Q000494:pharmacology*; D009584:Nitrogen / Q000172:deficiency* / Q000378:metabolism; D015398:Signal Transduction / Q000187:drug effects* / Q000235:genetics; D013312:Stress, Physiological / Q000187:drug effects* / Q000235:genetics
chemical_list: C000591191:GR24 strigolactone; D006575:Heterocyclic Compounds, 3-Ring; D007783:Lactones; D002734:Chlorophyll; D009584:Nitrogen
keywords: Arabidopsis; nitrogen deficient; stress condition; strigolactone