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245	1	0	_aNitrate reductase is a key enzyme responsible for nitrogen-regulated auxin accumulation in Arabidopsis roots.
490	0		_vBioChemical and Biophysical Research Communications, 532(4), p.633-639., 2020
520	3		_aNitrate reductase (NR)is one of the key enzymes for plant nitrogen assimilation and root architecture remodeling. However, crosstalk between NR-mediated signaling and auxin-mediated root development in nitrogen-status responses has not been investigated in details before. In this study, root phenotype and auxin distribution in nia1/nia2 (nitrate reductase)double mutant and chl1-5 (nitrate transporter NRT1.1)mutant under different nitrogen availabilities were compared. The nia1/nia2 mutant showed very low expression levels of auxin biosynthetic/signaling genes and was insensitive to nitrogen changes. While the chl1-5 mutant showed a high NR activity with a high level of auxin in the meristematic zone and a weaker response to nitrogen changes, when compared with the wild-type plants. We firstly found that NR activity was roughly positive-correlated with the root auxin level, and there is a crosstalk between nitrate signaling and auxin signaling. The putative signaling pathways downstream of NR have been discussed.
650	1	4	_aNITRATE REDUCTASE
650	1	4	_aNITRATE TRANSPORTER NRT1.1
650	1	4	_aNITRATE SIGNALING
650	1	4	_aROOT ARCHITECTURE REMODELING
650	1	4	_aAUXIN BIOSYNTHESIS AND TRANSPORT
700	1	2	_aFu, Y. F.
700	1	2	_aZhang, Z. W.
700	1	2	_aYang, X. Y.
700	1	2	_aWang, C. Q.
700	1	2	_aLan, T.
700	1	2	_aTang, X. Y.
700	1	2	_aYuan, S.
856	4	0	_uhttps://drive.google.com/file/d/1ALQzcnGE2KtUTmcyZuIp1CkF86z0m45T/view?usp=drivesdk _zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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