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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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Mitogen-activated protein kinase (MAPK) plays an important role in mediating the intracellular transmission and amplification of extracellular stimuli. We examined whether MAPK is involved in the signaling process during the early step of nodule formation. A genistein induced $\underline{c}$ulture $\underline{f}$iltrate (GCF) of Bradyrhizobium japonicum was prepared for inducing an early response by soybean root hairs via Nod factor. Upon treatment, several types of deformations were seen, demonstrating that GCF contains active Nod factor molecules. In-gel kinase assays showed that treating soybean roots with GCF induced the rapid activation of two protein kinases (molecular masses of 47kD and 44 kD), which phosphorylate myelin basic protein (MBP). To identify the activated kinase, we prepared an antibody against GMK1 ($\underline{G}$lycine max $\underline{M}$AP $\underline{k}$inase 1), based on information from SIMK (an alfalfa MAP kinase) and a soybean EST database. An immunocomplex kinase assay with the GMK1-specific antibody revealed that the 47-kD kinase in GCF-treated seedlings is indeed GMK1. Consistent with many other MAP kinases, GMK1 is likely to be under post-translational regulation. Considering these results and previous reports from soybean, GMK1 seems to be a signaling mediator with a broad range of stimuli, including a fungal elicitor, wounding, and the symbiotic interaction between soybean and B. japonicum.
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참고문헌 (31)
참고문헌 신청
Agrawal GK / 2003 / Rice MAPKs / Biochem Biophys Res Commun 302:171~180
Beringer JE / 1979 / The Rhizobium-legume symbiosis / Proc R Soc Lond B Biol Sci 204:219~233
Cardinale F / 2002 / Convergence and divergence of stress-induced mitogen-activated protein kinase signaling pathways at the level of two distinct mitogen-activated protein kinase kinases / Plant Cell 14:703~711
Cessna SG / 2003 / Cytosolic Ca2+ pulses and protein kinase activation in the signal transduction pathways leading to the plant oxidative burst / J Plant Biol 46:215~222
Mi Sun Cheong / 2007 / Salt-Stress Signaling / Journal of Plant Biology(한국식물학회지) 50(2):148~9
Beringer JE / 1979 / The Rhizobium-legume symbiosis / Proc R Soc Lond B Biol Sci 204:219~233
Cardinale F / 2002 / Convergence and divergence of stress-induced mitogen-activated protein kinase signaling pathways at the level of two distinct mitogen-activated protein kinase kinases / Plant Cell 14:703~711
Cessna SG / 2003 / Cytosolic Ca2+ pulses and protein kinase activation in the signal transduction pathways leading to the plant oxidative burst / J Plant Biol 46:215~222
Mi Sun Cheong / 2007 / Salt-Stress Signaling / Journal of Plant Biology(한국식물학회지) 50(2):148~9
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