Mild reductions in guard cell sucrose synthase 2 expression leads to slower stomatal opening and decreased whole plant transpiration in Nicotiana tabacum L

Francisco Bruno S. Freire,Ricardo L.G. Bastos,Raissa S.C. Bret,Silvio A. Cândido-Sobrinho,David B. Medeiros,Werner C. Antunes,Alisdair R. Fernie,Danilo M. Daloso

Environmental and Experimental Botany（2021）

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摘要

•NtSUS2-silenced plants have slower light-induced stomatal opening.•NtSUS2-silenced plants have a strong reduction in whole plant transpiration.•NtSUS2 silencing altered guard cell metabolic network.•NtSUS2 silencing reduce the accumulation of metabolites positively correlated with stomatal speediness.•The transgenic lines have higher effective use of water under short water deficit periods.

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关键词

Guard cell metabolism,Metabolic network,Plant metabolic engineering,Stomata,Stomatal speediness

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