title: [The role of ethylene in activation division cell quiescent center in the cut maize roots].
abstract: In the present work we used two maize cultivars in which root meristem responded differently to root tip excision: in Interkras-375 MW we observed meristem opening due to the activation of cell divisions in the quiescent center (QC), while in Krasnodar-194 MW the meristem remained closed. Excised root tips of Interkras M B-375 were shown to produce much more ethylene than excised root tips of Krasnodar-194 MW The inhibitor of ethylene biosynthesis L-α-ethoxyvinyl 2amino-glycine-HCl (AVG) and inhibitors of ethylene action AgNO3 and 1-methyl-cyclopropene (MCP) prevented meristem opening in excised root tips of Intekras-375 MW. The obtained results allow us to conclude that ethylene plays an important role in the activation of cell divisions in the QC of excised root tips.
authors.forename: E I
authors.initials: EI
authors.lastname: Bystrova
authors.forename: N V
authors.initials: NV
authors.lastname: Zhukovskaya
authors.forename: V J
authors.initials: VJ
authors.lastname: Rakitin
authors.forename: V B
authors.initials: VB
authors.lastname: Ivanov
mesh_terms: D000613:Aminobutyrates / Q000494:pharmacology; D002455:Cell Division; D003521:Cyclopropanes / Q000494:pharmacology; D005030:Ethylenes / Q000096:biosynthesis / Q000378:metabolism*; D018517:Plant Roots / Q000166:cytology* / Q000187:drug effects / Q000378:metabolism*; D012835:Silver Nitrate / Q000494:pharmacology; D003313:Zea mays / Q000166:cytology* / Q000187:drug effects
chemical_list: D000613:Aminobutyrates; D003521:Cyclopropanes; D005030:Ethylenes; C012175:2-amino-4-(2-aminoethoxy)butanoic acid; C036216:ethylene; D012835:Silver Nitrate; C412563:1-methylcyclopropene