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Gibberellins are involved in nodulation of Sesbania rostrata

Sam Lievens (UGent) , Sofie Goormachtig (UGent) , Jeroen Den Herder (UGent) , Ward Capoen (UGent) , René Mathis (UGent) , Peter Hedden and Marcella Holsters (UGent)
(2005) PLANT PHYSIOLOGY. 139(3). p.1366-1379
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Abstract
Upon submergence, Azorhizobium caulinodans infects the semiaquatic legume Sesbania rostrata via the intercellular crack entry process, resulting in lateral root-based nodules. A gene encoding a gibberellin (GA) 20-oxidase, SrGA20ox1, involved in GA biosynthesis, was transiently up-regulated during lateral root base nodulation. Two SrGA20ox1 expression patterns were identified, one related to intercellular infection and a second observed in nodule meristem descendants. The infection-related expression pattern depended on bacterially produced nodulation (Nod) factors. Pharmacological studies demonstrated that GAs were involved in infection pocket and infection thread formation, two Nod factor-dependent events that initiate lateral root base nodulation, and that they were also needed for nodule primordium development. Moreover, GAs inhibited the root hair curling process. These results show that GAs are Nod factor downstream signals for nodulation in hydroponic growth.
Keywords
MOLECULAR-CLONING, LEGUME NODULATION, INFECTION THREADS, DIFFERENTIAL DISPLAY, INTERCELLULAR INVASION, GENE-EXPRESSION, AZORHIZOBIUM-CAULINODANS, NOD FACTORS, CORTICAL CELL-DIVISION, PISUM-SATIVUM L

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Chicago
Lievens, Sam, Sofie Goormachtig, Jeroen Den Herder, Ward Capoen, René Mathis, Peter Hedden, and Marcella Holsters. 2005. “Gibberellins Are Involved in Nodulation of Sesbania Rostrata.” Plant Physiology 139 (3): 1366–1379.
APA
Lievens, Sam, Goormachtig, S., Den Herder, J., Capoen, W., Mathis, R., Hedden, P., & Holsters, M. (2005). Gibberellins are involved in nodulation of Sesbania rostrata. PLANT PHYSIOLOGY, 139(3), 1366–1379.
Vancouver
1.
Lievens S, Goormachtig S, Den Herder J, Capoen W, Mathis R, Hedden P, et al. Gibberellins are involved in nodulation of Sesbania rostrata. PLANT PHYSIOLOGY. 2005;139(3):1366–79.
MLA
Lievens, Sam, Sofie Goormachtig, Jeroen Den Herder, et al. “Gibberellins Are Involved in Nodulation of Sesbania Rostrata.” PLANT PHYSIOLOGY 139.3 (2005): 1366–1379. Print.
@article{331166,
  abstract     = {Upon submergence, Azorhizobium caulinodans infects the semiaquatic legume Sesbania rostrata via the intercellular crack entry process, resulting in lateral root-based nodules. A gene encoding a gibberellin (GA) 20-oxidase, SrGA20ox1, involved in GA biosynthesis, was transiently up-regulated during lateral root base nodulation. Two SrGA20ox1 expression patterns were identified, one related to intercellular infection and a second observed in nodule meristem descendants. The infection-related expression pattern depended on bacterially produced nodulation (Nod) factors. Pharmacological studies demonstrated that GAs were involved in infection pocket and infection thread formation, two Nod factor-dependent events that initiate lateral root base nodulation, and that they were also needed for nodule primordium development. Moreover, GAs inhibited the root hair curling process. These results show that GAs are Nod factor downstream signals for nodulation in hydroponic growth.},
  author       = {Lievens, Sam and Goormachtig, Sofie and Den Herder, Jeroen and Capoen, Ward and Mathis, Ren{\'e} and Hedden, Peter and Holsters, Marcella},
  issn         = {0032-0889},
  journal      = {PLANT PHYSIOLOGY},
  keyword      = {MOLECULAR-CLONING,LEGUME NODULATION,INFECTION THREADS,DIFFERENTIAL DISPLAY,INTERCELLULAR INVASION,GENE-EXPRESSION,AZORHIZOBIUM-CAULINODANS,NOD FACTORS,CORTICAL CELL-DIVISION,PISUM-SATIVUM L},
  language     = {eng},
  number       = {3},
  pages        = {1366--1379},
  title        = {Gibberellins are involved in nodulation of Sesbania rostrata},
  url          = {http://dx.doi.org/10.1104/pp.105.066944},
  volume       = {139},
  year         = {2005},
}

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