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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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Transcription profiling of Arabidopsis NFYA5 mutant vs wild type

ABSTRACT: NFYA5 is a transcription factor important for drought resistance. Drought stress up-regulates NFYA5 gene expression not only at the transcriptional level but also at the posttranscriptional level by down-regulating the expression of miR169a that targets NFYA5 transcript for cleavage. Experiment Overall Design: 2 replicates for WT (Col-0) were compared to 2 replicates for nfya5 (mutant)

ORGANISM(S): Arabidopsis thaliana

SUBMITTER: Jian-Kang Zhu

PROVIDER: E-GEOD-12029 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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The Arabidopsis NFYA5 transcription factor is regulated transcriptionally and posttranscriptionally to promote drought resistance.

Li Wen-Xue WX Oono Youko Y Zhu Jianhua J He Xin-Jian XJ Wu Jian-Min JM Iida Kei K Lu Xiao-Yan XY Cui Xinping X Jin Hailing H Zhu Jian-Kang JK

The Plant cell 20080805 8

Nuclear factor Y (NF-Y) is a ubiquitous transcription factor composed of three distinct subunits (NF-YA, NF-YB, and NF-YC). We found that the Arabidopsis thaliana NFYA5 transcript is strongly induced by drought stress in an abscisic acid (ABA)-dependent manner. Promoter:beta-glucuronidase analyses showed that NFYA5 was highly expressed in vascular tissues and guard cells and that part of the induction by drought was transcriptional. NFYA5 contains a target site for miR169, which targets mRNAs fo ...[more]

PMID: 18682547

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