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1篇 您的检索式：作者名="Taiki Higashi"

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		题名	作者	年代	出处	被引量
	1	Potassium transporter KUP9 participates in K+distribution in roots and leaves under low K+stress显示文摘Potassium(K)is a major essential element in plant cells,and KUP/HAK/KT-type K+transporters participate in the absorption of K+into roots and in the long-distance transport to above-ground parts.In Arabidopsis thaliana,KUP9 is involved in the transport of K+and Cs+in roots.In this study,we investigated KUP9 function in relation to the K+status of the plant.The expression of KUP9 was upregulated in older leaves on K+-depleted medium,compared to the expression of the other 12 KUP genes in the KUP/HAK/KT family in Arabidopsis.When grown on low K+medium,the kup9 mutant had reduced chlorophyll content in seedlings and chlorosis in older rosette leaves.Tissue-specific expression of KUP9 determined by KUP9 promoter:GUS assay depended on the K+status of the plants:In K+sufficient medium,KUP9 was expressed in the leaf blade towards the leaf tip,whereas in K+depleted medium expression was mainly found in the petioles.In accordance with this,K+accumulated in the roots of kup9 plants.The short-term 43K+tracer measurement showed that 43K was transferred at a lower rate in roots and shoots of kup9,compared to the wild type.These data show that KUP9 participates in the distribution of K+in leaves and K+absorption in roots under low K+conditions.	Taro Yamanashi Takeshi Uchiyama Shunya Saito Taiki Higashi Hayato Ikeda Hidetoshi Kikunaga Mutsumi Yamagami Yasuhiro Ishimaru Nobuyuki Uozumi	2022	Stress Biology2022，2，1：	0

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