Guard cell-specific down-regulation of the sucrose transporter SUT1 leads to improved water use efficiency and reveals the interplay between carbohydrate metabolism and K⁺ accumulation in the regulation of stomatal opening

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• 作者：Werner Camargos Antunes^a ; ^b ; ^{wcantunes@uem.br} ; ^{wcantunes@yahoo.com} ; Danilo de Menezes Daloso^b ; ^c ; Daniela Pereira Pinheiro^b ; Thomas Christopher Rhys Williams^b ; ^d ; Marcelo Ehlers Loureiro^b
• 关键词：Drought avoidance ; Guard cell ; Osmorregulation ; Transpiration ; Sucrose transport ; Water use efficiency
• 刊名：Environmental and Experimental Botany
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：135
• 期：Complete
• 页码：73-85
• 全文大小：1090 K
• 卷排序：135

文摘

We engineering a guard cell-specific down-regulation of sucrose transporter (SUT1) gene. Transgenic plants leads to low sucrose content in guard cells, low stomatal conductance and reduced transpiration rate. Our results indicate that sucrose transport in guard cell could be used to obtain plants with greater water use efficiency.