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Information × Registration Number 0213U004681, 0113U003676 , R & D reports Title Interdependence of gravitropic and stress signals in realization of reactions of directed growth on the different levels of plant organization popup.stage_title Head Kolesnikov Y.S., к.б.н. Registration Date 24-12-2013 Organization Institute of Bioorganic Chemistry and Petrochemistry of National Academy of Sciences of Ukraine popup.description2 It was shown that salt stress induced by sodium chloride evokes reliable inhibition of maize coleoptile gravitropism. Pre-treatment of plants with the stress dramatically reduces gravitropism, whereas adaptation increases it. Maize root gravitropism was sharply reduced by vacuum infiltration of the salt stress inducers. Different concentrations of 1-butanol, inhibitor of phospholipase D, additionally increase negative effect of salts on coleoptiles gravitropism. Exogenously applied auxin restores gravitropism in salt stress conditions. Simultaneous application of salt stress and inhibitor of auxin transport additionally reduces this tropic response of maize shoots. Gravitropism of hypocotyls and influorescence stems was investigated in Arabidopsis loss-of-function mutants in different genes of non-specific phospholipase C (NPC). It was observed that hypocotyls gravitropism was reduced in npc3 and npc4 mutants, in comparison with npc2 and npc5 mutants. Influorescence stem gravitropism was also weakened in npc3 and npc4 mutants. Product Description popup.authors Кравець В.С. popup.nrat_date 2020-04-02 Close