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Expression data from adult Arabidopsis roots under 200uM cadmium (Cd) treatment

ABSTRACT: To massively identify genes that are up-regulated by Cd and in particular transporter genes which might transport peptides or oligopeptides. Four week old hydroponically-grown Col-0 plants were treated with/without 200uM Cd for 6 hours. Total RNA was extracted from roots and subjected to hybridization with Affymetrix ATH1 microarrays.

ORGANISM(S): Arabidopsis thaliana

SUBMITTER: Ji-Ming Gong

PROVIDER: E-GEOD-22114 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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The Arabidopsis nitrate transporter NRT1.8 functions in nitrate removal from the xylem sap and mediates cadmium tolerance.

Li Jian-Yong JY Fu Yan-Lei YL Pike Sharon M SM Bao Juan J Tian Wang W Zhang Yu Y Chen Chun-Zhu CZ Zhang Yi Y Li Hong-Mei HM Huang Jing J Li Le-Gong LG Schroeder Julian I JI Gassmann Walter W Gong Ji-Ming JM

The Plant cell 20100525 5

Long-distance transport of nitrate requires xylem loading and unloading, a successive process that determines nitrate distribution and subsequent assimilation efficiency. Here, we report the functional characterization of NRT1.8, a member of the nitrate transporter (NRT1) family in Arabidopsis thaliana. NRT1.8 is upregulated by nitrate. Histochemical analysis using promoter-beta-glucuronidase fusions, as well as in situ hybridization, showed that NRT1.8 is expressed predominantly in xylem parenc ...[more]

PMID: 20501909

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