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Natural Variation in Arabidopsis Cvi-0 Accession Reveals an Important Role of MPK12 in Guard Cell CO2Signaling
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نویسنده
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jakobson l. ,vaahtera l. ,tõldsepp k. ,nuhkat m. ,wang c. ,wang y.-s. ,hõrak h. ,valk e. ,pechter p. ,sindarovska y. ,tang j. ,xiao c. ,xu y. ,gerst talas u. ,garcía-sosa a.t. ,kangasjärvi s. ,maran u. ,remm m. ,roelfsema m.r.g. ,hu h. ,kangasjärvi j. ,loog m. ,schroeder j.i. ,kollist h. ,brosché m.
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منبع
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plos biology - 2016 - دوره : 14 - شماره : 12
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چکیده
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Plant gas exchange is regulated by guard cells that form stomatal pores. stomatal adjustments are crucial for plant survival; they regulate uptake of co2for photosynthesis,loss of water,and entrance of air pollutants such as ozone. we mapped ozone hypersensitivity,more open stomata,and stomatal co2-insensitivity phenotypes of the arabidopsis thaliana accession cvi-0 to a single amino acid substitution in mitogen-activated protein (map) kinase 12 (mpk12). in parallel,we showed that stomatal co2-insensitivity phenotypes of a mutant cis (co2-insensitive) were caused by a deletion of mpk12. lack of mpk12 impaired bicarbonate-induced activation of s-type anion channels. we demonstrated that mpk12 interacted with the protein kinase high leaf temperature 1 (ht1)—a central node in guard cell co2signaling—and that mpk12 functions as an inhibitor of ht1. these data provide a new function for plant mpks as protein kinase inhibitors and suggest a mechanism through which guard cell co2signaling controls plant water management. © 2016 jakobson et al.
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آدرس
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institute of technology,university of tartu,tartu, Estonia, division of plant biology,department of biosciences,viikki plant science centre,university of helsinki,helsinki, Finland, institute of technology,university of tartu,tartu, Estonia, institute of technology,university of tartu,tartu, Estonia, division of biological sciences,cell and developmental biology section,university of california,san diego,la jolla,ca, United States, institute of technology,university of tartu,tartu, Estonia, institute of technology,university of tartu,tartu, Estonia, institute of technology,university of tartu,tartu, Estonia, institute of technology,university of tartu,tartu, Estonia, institute of technology,university of tartu,tartu, Estonia, college of life science and technology,huazhong agricultural university,wuhan, China, college of life science and technology,huazhong agricultural university,wuhan, China, college of life science and technology,huazhong agricultural university,wuhan, China, institute of molecular and cell biology,university of tartu,tartu, Estonia, institute of chemistry,university of tartu,tartu, Estonia, molecular plant biology,department of biochemistry,university of turku,turku, Finland, institute of chemistry,university of tartu,tartu, Estonia, institute of molecular and cell biology,university of tartu,tartu, Estonia, molecular plant physiology and biophysics,julius-von-sachs institute for biosciences,biocenter,university of würzburg,würzburg, Germany, college of life science and technology,huazhong agricultural university,wuhan, China, division of plant biology,department of biosciences,viikki plant science centre,university of helsinki,helsinki,finland,distinguished scientist fellowship program,college of science,king saud university,riyadh, Saudi Arabia, institute of technology,university of tartu,tartu, Estonia, division of biological sciences,cell and developmental biology section,university of california,san diego,la jolla,ca, United States, institute of technology,university of tartu,tartu, Estonia, institute of technology,university of tartu,tartu,estonia,division of plant biology,department of biosciences,viikki plant science centre,university of helsinki,helsinki, Finland
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Authors
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